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1
Cheng, Huangxin, Lei Huang, Pengtu Ma e Yi Shi. "Ecological Risk and Restoration Measures Relating to Heavy Metal Pollution in Industrial and Mining Wastelands". International Journal of Environmental Research and Public Health 16, n. 20 (18 ottobre 2019): 3985. http://dx.doi.org/10.3390/ijerph16203985.
Testo completoAbstract (sommario):
In this study, we applied an integrated approach to an ecological risk evaluation of heavy metal pollution in industrial and mining wastelands in Yangxin County, China. A total of 72 sampling sites were designated in the study area. The results show that the potential ecological risk levels of Hg and Cd are higher, and the coefficient of variation of mercury levels is large. Cr, Cu, Zn, Pb, Ni, and As are all at low potential ecological risk. The land types with relatively high ecological risks are alum and coal mines. In the soil of alum mines, the risk due to mercury is higher, while in coal mine soil, the risk due to cadmium is relatively higher.
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Nugroho, Wahyu. "Kebijakan Pengelolaan Tambang dan Masyarakat Hukum Adat yang Berkeadilan Ekologis". Jurnal Konstitusi 15, n. 4 (15 gennaio 2019): 816. http://dx.doi.org/10.31078/jk1547.
Testo completoAbstract (sommario):
Permasalahan dalam penelitian ini adalah: pertama, bagaimana kebijakan pengelolaan sumber daya pertambangan berdasarkan undang-undang pertambangan mineral dan batubara? Kedua, bagaimana kebijakan pengelolaan sumber daya pertambangan perspektif masyarakat hukum adat yang berkeadilan ekologis? Metode penelitian ini menggunakan penelitian hukum normatif. Hasil penelitian ini menunjukkan bahwa, pertama, kebijakan pengelolaan sumber daya pertambangan berdasarkan undang-undang pertambangan mineral dan batubara saat ini hendaknya disesuaikan dengan putusan-putusan mahkamah konstitusi dan Undang-Undang Nomor 23 tahun 2014 tentang Pemerintahan Daerah dalam konteks perizinan. Pemerintah daerah provinsi sekarang ini mengambil alih kewenangan pemerintah kabupaten/kota untuk mengeluarkan izin tambang berdasarkan Undang-Undang Nomor 23 tahun 2014 yang sebenarnya masih bersifat semi sentralistik dan secara kewilayahannya dalam konteks tambang masih berada di kabupaten, sementara pemerintah provinsi sebagai wakil dari pemerintah pusat; kedua, Kebijakan pengelolaan sumber daya pertambangan perspektif masyarakat hukum adat yang berkeadilan ekologis terletak pada konsep kearifan masyarakat hukum adat dalam pengelolaan sumber daya alam, dalam hal ini tambang yang menjadi hak penguasaan negara. Terdapat hubungan timbal balik antara manusia dengan alam, dimana masyarakat hukum adat selalu menempatkan keseimbangan alam dalam pengelolaan lingkungan (participerend cosmisch), sehingga keadilan ekologis dapat dirasakan semua unsur alam, selain manusia.The problems in this paper are: first, what are the mining resource management policies based on mineral and coal mining laws? and second, how is the mining resource management perspective of the ecological justice community indigenous people? This research method uses normative legal research with the classification of secondary data including primary legal materials including legislation in the fields of mineral and coal mining, environmental protection and management, and regional government. Secondary legal material in the form of books and journals, while secondary legal material in the form of online news. Data analysis using qualitative juridical analysis. The results of this study are first, current mining resource management policies based on mineral and coal mining laws should be adjusted to the decisions of the constitutional court and Law No. 23 of 2014 concerning Regional Government in the context of licensing. The provincial government is currently taking over the authority of the district / city government to issue mining permits under Law No. 23 of 2014 which are actually still semi-centralistic and in the territory in the context of mines still in the district, while the provincial government is the representative of the central government; secondly, the policy of managing mining resources from the perspective of indigenous peoples with ecological justice lies in the concept of indigenous peoples’ wisdom in managing natural resources, in this case mining which is the state’s right of control. There is a reciprocal relationship between humans and nature, where customary law communities always place natural balance in environmental management (participerend cosmisch), so that ecological justice can be felt by all elements of nature, other than humans.
3
Åhlgren, Kristina, Viktor Sjöberg e Mattias Bäckström. "Estimating Release of Trace Elements from an Area with Historical Open Pit Mining of Alum Shale Using Mass Transport and Element/Sulfate Ratios Calculations". Environments 7, n. 11 (10 novembre 2020): 100. http://dx.doi.org/10.3390/environments7110100.
Testo completoAbstract (sommario):
Alum shale was mined for oil and uranium production in Kvarntorp, Sweden, 1942–1966. Remnants such as pit lakes, exposed shale and a 100-meter-high waste deposit with a hot interior affect the surrounding environment, with elevated concentrations of, e.g., Mo, Ni and U in the recipient. Today most pit lakes are circumneutral while one of the lakes is still acidic. All pit lakes show signs of sulfide weathering with elevated sulfate concentrations. Mass transport calculations show that for elements such as uranium and molybdenum the western lake system (lake Söderhavet in particular) contributes the largest part. For sulfate, the two western lakes contribute with a quarter each, the eastern lake Norrtorpssjön about a third and a serpentine pond system receiving water from the waste deposit contributes around 17%. Except for a few elements (e.g., nickel 35%), the Serpentine system (including the waste deposit area) is not a very pronounced point source for metal release compared to the pit lakes. Estimates about future water runoff when the deposit has cooled down suggest only a slight increase in downstream water flow. There could possibly be first flush effects when previous hot areas have been reached by water.
4
Zada, Khamami, Mustolih Mustolih, Diana Mutia Habibaty, Lukman Hakim, Desy Purwaningsih e Trini Diyani. "Law and Sovereignty of the State in the Renegotiation of Freeport Contracts in Papua". Jurnal Cita Hukum 9, n. 2 (31 agosto 2021): 319–38. http://dx.doi.org/10.15408/jch.v9i2.21546.
Testo completoAbstract (sommario):
The mineral and coal mines have long been managed by foreign contracts between governments and foreigners. The position threatens the state's sovereignty over the wealth of natural resources. The study was to analyze the renege-management of Indonesia's Freeport mines in Papua. Socio-legal methods were used to analyze the renegotiation of Indonesia's Freeport management. The study found that according to the principle of state mastery over natural resources as a common property of Indonesian people's prosperity as in article 33 verses (3) constitution of 1945, the Indonesian government officially took over its 51-percent share of Freeport. It is part of an expression of national sovereignty over the management of its natural resources. With this position, Freeport's mining management is no longer based on a contract of work, but a Special Mining Business License which provides guarantees to business holders to have their licenses extended to provide certainty to mining business actors in conducting mining business in Indonesia.Keywords: Renegotiation; Freeport; State Sovereignity Hukum dan Kedaulatan Negara Dalam Renegosiasi Kontrak Freeport Di Papua Abstrak Pertambangan mineral dan batubara selama ini dikelola pihak asing berdasarkan kontrak antara pemerintah dan pihak asing. Posisi ini sesungguhnya mengancam kedaulatan negara atas kekeyaaan sumberdaya alam. Studi ini bertujuan untuk menganalisis renegosiasi pengelolaan tambang PT Freeport Indonesia di Papua. Metode socio-legal digunakan untuk menganalisis renegosiasi pengelolaan tambang PT Freeport Indonesia. Studi ini menemukan bahwa berdasarkan prinsip penguasaan negara atas sumberdaya alam sebagai common property bangsa Indonesia untuk kemakmuran rakyat sebagaimana pasal 33 ayat (3) Undang-Undang Dasar 1945, Pemerintah Indonesia secara resmi mengambil alih saham PT. Freeport Indonesia sebesar 51 %. Kebijakan ini merupakan bagian dari perwujudan kedaulatan negara atas pengelolaan sumberdaya alamnya. Dengan posisi ini, pengelolaan tambang Freeport bukan lagi berdasarkan kontrak karya, melainkan Izin Usaha Pertambangan Khusus yang memberikan jaminan kepada pemegang usaha untuk diperpanjang izinnya unutk memberikan kepastian kepada pelaku usaha pertambangan dalam melakukan bisnis pertambangan di Indonesia.Kata Kunci: Renegosiasi; Freeport; Kedaulatan Negara Закон и суверенитет государствапри пересмотре договоров Freeport в Папуа АннотацияДо настоящего времени управление добычей полезных ископаемых и угля осуществлялось иностранными сторонами на основании договоров между правительством и иностранными сторонами. Эта позиция фактически угрожает суверенитету государства над богатством природных ресурсов. Данное исследование направлено на анализ пересмотра условий руководства рудником компании Freeport Indonesia в Папуа. Социально-правовой метод был использован для анализа пересмотра условий руководства рудником компании Freeport Indonesia. Это исследование показало, что на основе принципа государственного контроля над природными ресурсами как общей собственностью индонезийского народа для процветания народа, как указано в пункте (3) статьи 33 Конституции 1945 года, правительство Индонезии официально приняло на себя акции из компании Freeport Indonesia на 51%. Эта политика является частью реализации государственного суверенитета над управлением своими природными ресурсами. С этой должностью управление горнодобывающей промышленностью Freeport больше не основывается на договоре на выполнение работ, а на специальной лицензии на горнодобывающий бизнес, которая предоставляет владельцам бизнеса гарантии продления их лицензий, чтобы обеспечить уверенность участников горнодобывающего бизнеса в ведении горнодобывающего бизнеса в Индонезии.Ключевые Слова: Пересмотр; Freeport; Государственный суверенитет
5
Saputra, Rico Amdan, e Baiq Lily Handayani. "Women's Participation in Mining Rejection Movement in Tumpangpitu Mountain (An Analysis of Ecofeminism)". Jurnal ENTITAS SOSIOLOGI 7, n. 1 (5 febbraio 2018): 27. http://dx.doi.org/10.19184/jes.v7i1.16637.
Testo completoAbstract (sommario):
The main objective of this research is to analyze the participation of women in the rejection movement of gold mines in Mount Tumpangpitu in Sumberagung Village, Pesanggaran - Banyuwangi. By using qualitative descriptive methods, data are collected through interviews, direct observation, and literature study. The theory used for the analysis is Ecofeminism Vandana Shiva. The researcher is also participatory in the rejection action. The results showed that women were involved in this environmental movement of their own volition. Most of the women who participated in the campaign had a low level of education. Their involvement is based on concerns over the loss of their family's source of income and life. They worry that the ecosystem will be damaged, and they will have difficulty finding resources for them to survive.
Keywords: Women's participation, Ecofeminism, Mount Tumpangpitu, Gold mining
Referensi:
Candraningrum, D. (2013). Ekofeminisme I : Dalam tafsir Agama,Pendidikan, Ekonomi dan Budaya. Yogyakarta: Jalasutra.
Candraningrum, D. (2014). Ekofeminisme II :Narasi Iman,Mitos,Air dan Tanah. Yogyakarta: jalasutra.
-----------------------. (2015). Ekofeminisme III :Tambang, Perubahan Iklim,Air dan Memori Rahim. Yogyakarta: jalasutra.
Denzin, Norman K. dan Yvonna S. Lincoln (eds.). 2009. Handbook of Qualitative Research. Terj. Dariyatno dkk. Jogjakarta: Pustaka Pelajar.
Kartika, T. (2014). Perempuan Lokal vs Tambang Pasir Besi Global. Jakarta: Yayasan Pustaka Obor Indonesia.
Miles, B. Mathew dan Michael Huberman. 1992. Analisis Data Kualitatif Buku Sumber Tentang Metode-metode Baru. Jakarta: UIP.
Mitchell, Bruce. Setiawan, B. Rahmi, DH. 2000. Pengelolaan Sumberdaya Alam Lingkungan. Penerbit Gajahmada University Press. Yogyakarta.
Pranoto, N. (2017). Ekofeminisme : Kritik Sastra Berwawasan Ekologis dan Feminis. Yogyakarta: Cantrik Pustaka .
Shiva, V and Mies, M. 2005. Ekoveminisme Perspektif Gerakan Perempuan Dan Lingkungan .Yogyakarta: IRE Pres
Shiva, Vandana, 1988, Bebas Dari Pembangunan; Perempuan, Ekologi, dan Perjuangan hidup di India, Jakarta: yayasan Obor Indnesia.
Shiva, Vandana, 2002, Water and Wars: Privatization, Pollutionand Provid, Yogyakarta: Insist Press.
Susilo, R. K. (2009). Sosiologi Lingkungan. Jakarta: Rajawali Pers.
Sumaryadi, I. N. (2005). Efektifitas Implementasi Kebijakan Otonom Daerah. Jakarta: Citra Utama.
Thong, R. P. (1998). Feminist Thought pengantar paling komprehensif kepada aliran utama pemikiran feminis. Yogyakarta: Jalasutra.
Skripsi :
Sutomo, B. (2014).’Eksploitasi Alam Di Gunung Tumpangpitu Dalam Perspektif Ekologi. Marx. Jember: Universitas Jember
Jurnal:
Yuni, D.A. (2013). Konflik Pertambangan Emas Di Gunung Tumpangpitu Desa Sumberagung Kecamatan Pesanggaran, 5. Jember: Universitas Jember
Internet:
Detik.com/berita/182807/benjolan-pada-warga-buyat-bukan-karena-pencemaran.[Di akses pada 5 April 2018]
Mongabay.co.id-tambang-emas-tumpang-pitu-dari-masa-ke-masa-bagian tambang-emas-tumpang-pitu-dari-masa-ke-masa-bagian. [Diakses 25 mei 2017].
Kompas.com/read/2016/08/20/12135481/pulau.merah.banjir.lumpur.perusahaan.tambang.emas.diminta.segera.penuhi.amdal. [Diakses pada 21 oktober 2017].
Tribunnews.com-ratusan-warga-menolak-pertambangan-tumpang-pitu-supaya-dihentikan. [Diakses pada tanggal 22 mei 2017].
Rapper.com-warga-bersama-ibu-ibu-menolak-tambang-emas-tumpang-pitu. [Diakses pada tanggal 22 mei 2017].
Mongabay.co.id-nasib-warga-kala-melawan-pemasangan-kabel-listrik-tambang-emas-tumpang-pitu/ .[Diakses pada tanggal 18 oktober 2017].
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Whitson, Joseph. "Monumental Mines". Public Historian 41, n. 3 (1 agosto 2019): 49–71. http://dx.doi.org/10.1525/tph.2019.41.3.49.
Testo completoAbstract (sommario):
Through an analysis of three interpreted mines in northeastern Minnesota, this article illuminates how the region’s public history is complicit in the ongoing process of settler colonialism. Largely controlled by iron mining interests, the region’s public history and tourism industry is deeply invested in the future of mineral extraction, representing mining and white-ethnic mining culture as natural and indigenous to the landscape. This narrative erases Ojibwe presence in the region, ignoring both the role mining played in past environmental injustices as well as how it continues to threaten Ojibwe political and resource sovereignty.
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Davis, Richmond P. "SUBMARINE MINES AND MINING". Journal of the American Society for Naval Engineers 20, n. 3 (18 marzo 2009): 674–91. http://dx.doi.org/10.1111/j.1559-3584.1908.tb02136.x.
Testo completo
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Chen, Haoyi, Zhiheng Cheng e Dezhong Kong. "Evaluation of mining capacity of mines using the combination weighting approach: A case study in Shenmu Mining Area in Shaanxi Province, China". Science Progress 104, n. 4 (ottobre 2021): 003685042110440. http://dx.doi.org/10.1177/00368504211044032.
Testo completoAbstract (sommario):
Aiming at the low mining rate in mines, Xingelao, Dabianyao, and Dongliang Coal Mines in Shenmu Mining Area, Shaanxi Province, China were taken as research objects. Based on this, this study constructed an evaluation index system for the mining capacity of the mines from the perspectives of geological factors, mechanical equipment, humans, and mining design. Moreover, the factors influencing the mining capacity of the mines were evaluated using a combination weighting approach based on an improved analytic hierarchy process and an entropy weight method. A standard cloud was generated based on the mapping standards of each index and a comprehensive cloud was obtained according to comprehensive weight and a backward cloud algorithm. Finally, by combining the comprehensive cloud with local and overall scores of the mines, the mining capacities of the mines were evaluated. The research results demonstrate that the key factor restricting the mining capacity of the mines is the geological environment and five major third-grade indexes affecting mining capacity are igneous rock intrusion, collapse column, scouring zone of the ancient river bed, mechanization level and coal pillar width. In addition, the corresponding suggestions and measures were put forward according to the main factors influencing the mining rate of the mines. In accordance with the weights and scores of each index, the overall scores of the mines were calculated. Dongliang, Dabianyao, and Xingelao Coal Mines were ranked in order based on scores. The research results provide a theoretical basis for improving the mining capacity of the mines under similar geological conditions.
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Li, Shuai, Peiyuan Zou, Haoxuan Yu, Boyi Hu e Xinmin Wang. "Advantages of Backfill Mining Method for Small and Medium-Sized Mines in China: Safe, Eco-Friendly, and Efficient Mining". Applied Sciences 13, n. 12 (19 giugno 2023): 7280. http://dx.doi.org/10.3390/app13127280.
Testo completoAbstract (sommario):
Despite China’s position as a global mining powerhouse, tens of thousands of small- and medium-sized mines (SM mines) within the country continue to pose potential safety hazards and environmental pollution risks. Only through the identification of suitable development paths can these mines improve their economic and environmental benefits, ultimately driving significant progress in China’s mining industry. Backfill mining, an environmentally friendly mining method, has emerged as a viable solution, offering the potential to ensure mining safety, reduce environmental pollution stemming from tailings stockpiles, and enhance ore resource recovery. This review article aims to provide researchers and readers with a comprehensive understanding of the current situation and challenges faced by SM mines in China. It explores the mining processes, technologies, and equipment commonly employed by these mines while addressing the specific problems and challenges they encounter. Furthermore, the article offers recommendations to guide the future development of SM mines. Additionally, the review examines the prospects and potential applications of backfill mining methods within the context of SM mines in China, emphasizing their role in promoting sustainable mining practices, environmental protection, and waste utilization. Ultimately, this comprehensive review article serves as a valuable resource, stimulating discourse and encouraging experts and scholars to further explore the unique challenges and opportunities associated with SM mines. By highlighting the significance of green mining practices, environmental protection, backfill mining, and waste utilization, the article aims to inspire innovative solutions and foster sustainable practices within the Chinese mining industry.
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Pretes, Michael. "Touring mines and mining tourists". Annals of Tourism Research 29, n. 2 (aprile 2002): 439–56. http://dx.doi.org/10.1016/s0160-7383(01)00041-x.
Testo completo
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Du, Kun, Junjie Xie, Wenqin Xi, Liang Wang e Jian Zhou. "Construction Practices of Green Mines in China". Sustainability 16, n. 1 (4 gennaio 2024): 461. http://dx.doi.org/10.3390/su16010461.
Testo completoAbstract (sommario):
To maintain high-level economic development, protect the ecological environment, and achieve carbon peaking and carbon neutrality goals, the construction of green mines has become a critical issue in China. In this study, the importance of mineral resources to human society is discussed, and the construction experiences and sustainable development directions of green mines are summarized, which can provide valuable references for the global mining industry. The entry and management process in China was introduced to help understand green mines’ construction objectives and tasks. Moreover, based on the successful construction cases of green mines, four typical green mine models are concluded: the green technology mining model, operation modernization mining model, stability mining model, and ecological restoration mining model. In addition, the key construction elements of green mines are concluded, for example, the mining environment, mining methods, comprehensive utilization of resources, energy conservation, emission reduction, scientific and technological innovation and intelligence, and enterprise-land stability, which provided the directions and guidance for green mine construction.
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Edmonds, Clive N. "Chapter 12 Subsidence – chalk mining". Geological Society, London, Engineering Geology Special Publications 29, n. 1 (2020): 311–19. http://dx.doi.org/10.1144/egsp29.12.
Testo completoAbstract (sommario):
AbstractOld chalk and flint mine workings occur widely across southern and eastern England. Over 3500 mines are recorded in the national Stantec Mining Cavities Database and more are being discovered each year. The oldest flint mines date from the Neolithic period and oldest chalk mines from at least medieval times, possibly Roman times. The most intensive period for mining was during the 1800s, although some mining activities continued into the 1900s. The size, shape and extent of the mines vary considerably with some types only being found in particular areas. They range from crudely excavated bellpits to more extensive pillar-and-stall styles of mining. The mines were created for a series of industrial, building and agricultural purposes. Mining locations were not formally recorded so most are discovered following the collapse of the ground over poorly backfilled shafts and adits. The subsidence activity, often triggered by heavy rainfall or leaking water services, poses a hazard to the built environment and people. Purpose-designed ground investigations are needed to map out the mine workings and carry out follow-on ground stabilization after subsidence events. Where mine workings can be safely entered they can sometimes be stabilized by reinforcement rather than infilling.
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Nasir*, M., Widya Rahmah, Ibnu Khaldun, M. Hasan e Rusman Rusman. "Analisis Kadar Merkuri Dalam Rambut Penambang Emas Desa Alue Baro Kecamatan Meukek Secara Spektrofotometri Serapan Atom". Jurnal IPA & Pembelajaran IPA 5, n. 4 (1 dicembre 2021): 269–78. http://dx.doi.org/10.24815/jipi.v5i4.22654.
Testo completoAbstract (sommario):
The activity of using mercury in gold mining in Alue Baro Village, Meukek District is carried out freely so that it has a negative impact on the environment and the health of the miners. This study aims to determine the level of mercury in the hair of artisanal gold miners in Alue Baro village by referring to the reference that has been set by WHO. The data sample collection was carried out by taking 6 hair samples from the Alue Baro village gold miners who were selected with various types of work, namely gold processing, waste processing and waste waste until the time of the interview with a minimum working period of 1 year with sample codes R1, R2, R3, R4, R5 and R6 as control samples. The six samples were analyzed using Atomic Absorption Spectrophotometry equipped with a Mercury Analyzer which showed results, respectively, 1.01; 2.38; 1.65; 1.35; 1.66; and 0.64 ppm. The results of this study indicate that all hair samples have mercury levels above the mercury threshold that has been set by WHO, namely 1 ppm. High levels of mercury in hair samples were analyzed on exposure to mercury. Further research was conducted to analyze other metals contained in the hair of gold miners in Alue Baro village
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Papastefanaki, Leda. "Family, Gender, and Labour in the Greek Mines, 1860–1940". International Review of Social History 65, n. 2 (8 novembre 2019): 267–88. http://dx.doi.org/10.1017/s0020859019000580.
Testo completoAbstract (sommario):
AbstractTo date, research on work in the mines in Greece has ignored the significance of gender in the workplace, since mining is associated exclusively with male labour. As such, it is considered, indirectly, not subject to gender relations. The article examines the influence of family and gender relations on labour in the Greek mines in the period 1860–1940 by highlighting migration trajectories, paternalistic practices, and the division of labour in mining communities.Sources include: official publications of the Mines Inspectorate and the Mines and Industrial Censuses, the Greek Miners’ Fund Archive, British and French consular reports, various economic and technical reports by experts, literature and narratives, the local press from mining regions, and the Archive of the Seriphos Mines.
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Otto, James. "Mining directory 1996/1997 US mines and mining companies". Resources Policy 23, n. 4 (dicembre 1997): 202–3. http://dx.doi.org/10.1016/s0301-4207(97)90038-6.
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Tyuleneva, Tatyana. "Improvement of production control of coal mining enterprises with underground mining method". E3S Web of Conferences 303 (2021): 01017. http://dx.doi.org/10.1051/e3sconf/202130301017.
Testo completoAbstract (sommario):
Production safety is one of the problems of competitiveness of underground mining enterprises, one manifestation of which is the reduction and minimization of the number of accidents and incidents of personal injury or even death. To solve this problem, it is necessary to improve the system of production control of coal mines in order to eliminate these factors. Relative indicators of accidents and injuries at underground coal mines of Russia in comparison with the average indicators are considered, and also importance of the human factor in the occurrence of dangerous production situations and the evaluation of their causes and effects are revealed. In addition, the article considers the most common violations of safety requirements for underground coal mining, analyzes the experience of foreign countries in improving the production control system, assesses the possibility of its application for improving production control at Russian coal mines, and determines main areas for implementing a risk-based approach at coal mining enterprises.
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Horyń, Ewa. "Tendencje w dawnym nazewnictwie kopalń. Rekonesans". Textus et Studia, n. 4(36) (23 gennaio 2024): 147–66. http://dx.doi.org/10.15633/tes.09409.
Testo completoAbstract (sommario):
This article is an introduction to research in the field of historical nomenclature related to the mining environment. Names of mines will be analysed from a cultural perspective. Historical works on mining and mining culture, monographs of individual mines, tourist materials, guides, as well as information available online, have been helpful in establishing or supplementing information about the collected names. In the article, the most important naming trends visible in the examined onimic resources will be presented on the basis of selected examples. The collected names of mines are a testimony to mining activities and also, constitute an important part of the cultural and civilisational heritage of Polish mining tradition.
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Ma, Chuanbin. "Exploration of the Application of Green Mining Technology in Coal Mines under the New Situation". Applied Science and Innovative Research 8, n. 1 (2 marzo 2024): p159. http://dx.doi.org/10.22158/asir.v8n1p159.
Testo completoAbstract (sommario):
This paper discusses the application of green mining technology in coal mines under the new situation, considering the environmental pressures and requirements for sustainable development faced by coal mining. Firstly, it introduces the definition and principles of green mining, along with its development history, and analyzes the importance of relevant policies and regulations. Subsequently, it analyzes the demands faced by coal mining under the new situation, including the relationship between environmental issues and sustainable development, the impact of new energy development on coal mines, and social demands and public opinion pressure. Furthermore, through application cases, it showcases the specific practices of green mining technology in coal mines, involving environmental protection technology, energy efficiency improvement technology, and green mining technology. When discussing the challenges and issues of technology application, it focuses on technical difficulties, economic feasibility, and human resources and training needs. Finally, it looks ahead to the prospects of green mining technology in coal mines, emphasizing the importance of sustainable development and proposing suggestions regarding technological innovation, policy support, and corporate responsibilities.
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Kalinda, Roy, e Kusanthan Thankian. "Women and Mining in Zambia: Opportunities and Challenges". Journal of Scientific Research and Reports 29, n. 4 (19 aprile 2023): 34–43. http://dx.doi.org/10.9734/jsrr/2023/v29i41742.
Testo completoAbstract (sommario):
The rise of urbanisation in colonial Zambia particularly on the Copperbelt province is associated with the discovery of minerals in the early 1900s. The widespread discovery of minerals and exploitation of the same minerals required labour both skilled and unskilled labour. Skilled labour was drawn from overseas while unskilled labour was available from the local population. During the colonial period, the predominant labour force on the mines were men while women were by law were not allowed to enter towns during the early years of urbanization or to take residence in urban areas anywhere in the country. Early researchers commented that early African migration to mine towns essentialised as men’s wage work, depended on agricultural and reproductive labour performed by women, who officially remained in rural areas. Local labour migrations were highly restricted and employment of women in urban areas was scarce or none existent in the initial stages of urbanisation.
Skilled and none skilled labour for women employees on the mines initially did not exist in the colonial period because they (women) were not viewed as important labourers needed for production in the mines. This restriction of women in urban areas created a legacy of gender inequalities in almost all the sectors of labour employment and more so in the mining sector during the colonial period. Consequently, one can argue that since the colonial period to date, women have been a minority group in the mines occupying low positions in their majority compared to men and very few women hold executive positions in the mining sector.
Employment during the colonial period was not easily found due to clear discrimination. The end result of this type of discrimination in employment resulted in few or no women at all in some instances in the mines. With passage of time, women were allowed into towns and on the mines but formal jobs for women were difficult to find. The current state of gender inequalities in the mines in Zambia today is a carryover from the colonial period. Currently, training institutions for mine workers such as universities, colleges and technical institute are still dominated by male students.
The above situation eventually results into a gendered labour force in the mines with men occupying highly skilled jobs while women dominate the low skilled and non-skilled jobs in mining conglomerates. The current gender inequalities on the mines are historically embedded in the mines as patriarchal institutions owned and ran by the same men. Consequently, very few women are in the executive positions in mines and even very few do own mines.
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Le, Thao Qui, Nam Xuan Bui, Hieu Dinh Vu e Hoa Thu Thi Le. "Research on selective sequence of appropriate mining technology for placer titanium mines in Binh Thuan province". Journal of Mining and Earth Sciences 61, n. 5 (10 ottobre 2020): 33–46. http://dx.doi.org/10.46326/jmes.ktlt2020.03.
Testo completoAbstract (sommario):
Binh Thuan province has significant reserves of placer titanium, occupies approximately 92% total reserves of Vietnam. Geological condition of the deposit is quite uncomfortable for mining activities. At present, selection of appropriate mining technology for placer titanium mines in Binh Thuan province is a scientific and practical problem. In this paper, authors researched and developed a selective sequence of appropriate mining technology for placer titanium mines in Binh Thuan province, consists of (1) feasible mining technological schemes, (2) appropriate mining order, (3) possibility of providing water for mine, (4) ensuring slope stability, (5) comfortable alternatives for land rehabilitation and restoration, and (6) high economic effect. With this selective sequence, the appropriate mining technology for placer titanium mines in Binh Thuan province can be selected, and contributes to enhance mining effect, ensures safety and protect environment.
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Kasztelewicz, Zbigniew. "Approaches to Post-Mining Land Reclamation in Polish Open-Cast Lignite Mining". Civil And Environmental Engineering Reports 12, n. 1 (26 giugno 2014): 55–67. http://dx.doi.org/10.2478/ceer-2014-0006.
Testo completoAbstract (sommario):
Abstract The paper presents the situation regarding the reclamation of post-mining land in the case of particular lignite mines in Poland until 2012 against the background of the whole opencast mining. It discusses the process of land purchase for mining operations and its sales after reclamation. It presents the achievements of mines in the reclamation and regeneration of post-mining land as a result of which-after development processes carried out according to European standards-it now serves the inhabitants as a recreational area that increases the attractiveness of the regions.
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Liu, X., L. Li e Y. Yang. "Development status of coal mining in China". Journal of the Southern African Institute of Mining and Metallurgy 123, n. 1 (23 febbraio 2023): 19–27. http://dx.doi.org/10.17159/2411-9717/1506/2023.
Testo completoAbstract (sommario):
Coal mining in China is facing the transition from output to quality. Based on the total mining capacity and average production, the current situation of coal mining at mine, city, and province levels is analysed, and data in support for the layout of sustainable mining development and the optimization of output provided. The results show that 87% of China's coal is mined by underground methods, with an average production capacity of 0.93 Mt/a per mine. Open pit mining accounts for 13%, with an average mine production capacity of 5.73 Mt/a. The average mining capacity of coal mines in China is 1.05 Mt/a, with 1181 coal mines with an average capacity less than 0.3 Mt/a, accounting for 35% of the total coal mines but contributing only 4.51% to output. They are distributed in about 48 cities in six provinces, seriously restricting the transition to green coal mining. The coal industry should speed up the closure of small coal mines in key provinces and cities, eliminate outdated production capacity in the central region, increase the speed and proportion of coal resources moving westward, and promote high-quality development of coal mining.
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Ren, Gao Feng, Zhao Ming Qian e Zhong Chun Hu. "Research on Secondary Resource Utilization and Mining Damage Control in Gob-Effect Gypsum Mines". Applied Mechanics and Materials 253-255 (dicembre 2012): 1093–97. http://dx.doi.org/10.4028/www.scientific.net/amm.253-255.1093.
Testo completoAbstract (sommario):
Room-and-pillar mining method plays a dominant role in gypsum mines, which owns a low resource recovery ratio and has left many gobs leading a series of safety production problems to mining enterprises. To get an utmost resource recovery and avoid gob collapse, a secondary utilization scheme has been made by feasibility analysis and theoretical calculation. In this scheme, theoretical calculation about the occurrence conditions of mining damage has been done, and the deep research direction of the mining damage mechanism in gob-effect gypsum mines has been pointed out. This research and its train of thought could provide the gob-effect gypsum mines with reference that would increase ore recovery ratio and prevent mining damage.
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Xu, Shi Da, Yuan Hui Li e Jian Po Liu. "Application of Wasteless Mining in Hongtoushan Copper Mine". Advanced Materials Research 734-737 (agosto 2013): 722–26. http://dx.doi.org/10.4028/www.scientific.net/amr.734-737.722.
Testo completoAbstract (sommario):
As we all know, a large number of waste rock which caused many serious problem produced in mining. The pollution caused by waste rock in mining is threating the human society seriously in some aspects. Wasteless mining is more and more popular to relieve the burden of mines. As one of the deepest mines in China, Hongtoushan Copper Mine began to establish waste rock filling system in 1995. After three phases of the waste rock filling system, all the waste rock was used to fill the goaf in underground mining in 2012. The wasteless rock mining had brought RMB 8 million and good social benefits. It offered a good suggestion for similar mines in China.
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Rosfiantika , dkk, Evi. "COMMUNICATION STRATEGIES OF NATURAL RESOURCES AND ENVIRONMENT PROTECTION AND MANAGEMENT POLICIES BASED ON LOCAL WISDOM IN TASIKMALAYA REGENCY". EDUTECH 14, n. 2 (10 giugno 2015): 273. http://dx.doi.org/10.17509/edutech.v14i2.1381.
Testo completoAbstract (sommario):
Abstract. The purpose of this study was to determine the Communication Strategy Policy on the Protection and Management of Natural Resources and Environment based on local knowledge that can be applied in Tasikmalaya district and can be used as an alternative model of communication policies based on local wisdom. The method used is descriptive method with qualitative approach. Object of research is natural, or natural setting, The data collection techniques used in this study are: observation, interview and literature then Informants selected purposively composed of six (6) persons, namely: Head Section of Supervision Department of Mines and Energy Tasikmalaya District , cultural leaders, community residents, the Village Head Sindangkerta, iron sand material Entrepreneur and Chairman of RT. 01 RW 01 Sindangkerta Cipatujah village. The conclusion is communication policies that do not integrate with the local knowledge and the existence of traditional media in the society is not used to convey the message policies so that policy implementation does not run optimally in accordance with the purpose of government is needed communication strategy policy based on local wisdom in resolving implementation issues iron sand mining policy that is happening today in TasikmalayaKeyword: policy communication strategy, local wisdom, environment.Abstrak. Tujuan penelitian ini adalah untuk mengetahui Strategi Komunikasi Kebijakan Tentang Perlindungan dan Pengelolaan Sumberdaya Alam dan Lingkungan Hidup berdasarkan kearifan lokal yang bisa diterapkan di Kabupaten Tasikmalaya dan bisa dijadikan alternatif model komunikasi kebijakan yang berbasis kearifan lokal. Metode penelitian yang digunakan adalah metode deskriptif dengan pendekatan kualitatif. Obyek penelitian yang alamiah, atau natural setting, Adapun teknik pengumpulan data yang digunakan dalam penelitian ini adalah : observasi, wawancara dan studi pustaka kemudian Informan dipilih secara purposif terdiri dari 6 (enam) orang, yaitu : kepala Seksi Pengawasan Dinas Pertambangan dan Energi Kabupaten Tasikmalaya, Tokoh budaya, Warga masyarakat , Kepala Desa Sindangkerta, Pengusaha material pasir besi dan Ketua RT. 01 RW 01 Desa Sindangkerta Cipatujah. Kesimpulan yang diperoleh adalah komunikasi kebijakan yang dilakukan belum diintegrasikan dengan kearifan lokal dan keberadaan media tradisional yang ada di masyarakat tidak dimanfaatkan untuk menyampaikan pesan kebijakan sehingga implementasi kebijakan tidak berjalan optimal sesuai dengan tujuan pemerintah maka dibutuhkan strategi komunikasi kebijakan yang berdasarkan kearifan lokal dalam menyelesaikan masalah implementasi kebijakan penambangan pasir besi yang terjadi saat ini di TasikmalayaKata kunci : strategi komunikasi kebijakan, kearifan lokal, Lingkungan hidup
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Fitriani e Ade Ikhsan Kamil. "Pengetahuan dan Sistem Pengelolaan Pertambangan Minyak Rakyat di Gampong Alue Dua Aceh Timur". Jurnal Sosiologi Agama Indonesia (JSAI) 1, n. 3 (30 novembre 2020): 250–65. http://dx.doi.org/10.22373/jsai.v1i3.805.
Testo completoAbstract (sommario):
This article discusses the knowledge of community oil miners in the People's Mining in Alue Dua Village, Rantau Peureulak District, East Aceh Regency. The author collects data using participatory observation, in-depth interviews and corroborates it by studying literature. The results showed that the knowledge of miners in Gampong Alue Dua was formed along with the history of the emergence of mining in Peureulak, especially when the oil companies entered to take samples of land as proof that the Peureulak area has the potential to contain oil, and also because of self-taught learning. For miners, there are 4 special signs in identifying land that has the potential to contain oil: 1) the land selected for drilling that is close to and is still in the same lane as the Dutch heritage lake. 2) The distance between the land which is the drilling position and the Dutch heritage lake is about 100-150 meters. 3) Selection of old wells or Dutch heritage ponds with the category of no longer active. 4) Get back to the miners' technicians at work.
Abstrak
Artikel ini membahas tentang pengetahuan penambang minyak rakyat yang ada di Pertambangan Rakyat di Gampong Alue Dua, Kecamatan Rantau Peureulak, Kabupaten Aceh Timur. Penulis mengumpulkan data dengan cara observasi partisipasi, wawancara mendalam dan menguatkannya dengan studi literatur. Hasil penelitian menunjukkan bahwa pengetahuan penambang di Gampong Alue Dua terbentuk seiring sejarah kemunculan pertambangan di Peureulak, terutama saat masuknya perusahaan minyak untuk mengambil sempel tanah sebagai pembuktian bahwa daerah Peureulak berpotensial mengandung minyak, dan juga karena faktor belajar secara otodidak. Bagi para penambang, terdapat 4 tanda khusus dalam mengenali lahan yang berpotensial mengandung minyak: 1) lahan yang dipilih untuk melakukan pengeboran adalah lahan yang dekat dan masih satu jalur dengan telaga peninggalan Belanda. 2) Jarak lahan yang menjadi posisi pengeboran dengan telaga peninggalan Belanda sekitar 100-150 meter. 3) Pemilihan sumur tua atau telaga peninggalan Belanda dengan kategori sudah tidak aktif lagi. 4) Kembali pada teknisi para penambang dalam bekerja.
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Waskitho, Nugroho Tri, Risaka Desi Amelida, Febri Arif Cahyo Wibowo, Yahya Jani e Nirmala Ayu Aryanti. "The Characteristic of Teak Growing in Three Areas (Mine, Non-Mining, and Ex-Mining) Forest Management Unit Parengan Bojonegoro, Indonesia". BIO Web of Conferences 104 (2024): 00031. http://dx.doi.org/10.1051/bioconf/202410400031.
Testo completoAbstract (sommario):
Bojonegoro Regency has an oil mining location where it is estimated that Indonesia’s crude oil reserves are 25 % of national needs. The location is in Forest Management Unit (Kesatuan Pengelolaan Hutan - KPH) Parengan which has a teak forest (Tectona grandis L.) with a very close oil mining radius. The aim of the research is to determine the differences in the characteristics of teak growing places and to determine the types of petroleum fractions in active oil mines, former oil mines and those without oil mines. The research method uses a circle plot (17.8 m) with a Sampling Intensity (IS) of 20 % with data analysis results using a one sample test and a Least Significant Difference (LSD) alpha test of 5 %. The characteristics of the teak growing area at each location have different values for height, P content, C content, number of oil fractions and temperature. The types of petroleum fractions in active oil mines are naphtha, kerosene, fuel oil and wax. Ex-oil mines contain gasoline (premium), kerosene, aviation fuel, light gas, fuel oil, lubricating oil, wax and asphalt. In locations without oil mines there is kerosene, aviation fuel, gasoline (premium) and light gas.
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Gaule, Sally. "Mining photographs: David Goldblatt’sOn the Mines". Social Dynamics 40, n. 1 (2 gennaio 2014): 122–39. http://dx.doi.org/10.1080/02533952.2014.884266.
Testo completo
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Veress, Márton. "Rubble Mines in the Environs of Veszprém (Bakony Region, Hungary)". Mining 3, n. 4 (25 settembre 2023): 579–604. http://dx.doi.org/10.3390/mining3040032.
Testo completoAbstract (sommario):
In the Bakony Region, in the mines of dolomite (dolostone) surfaces between the settlements of Márkó and Pétfürdő (Várpalota), in rubble beds exposed by them and with the consideration of these, the process of rubble formation is studied here in order to interpret the characteristics of rubble beds (different thicknesses and vertical changes in grain size) in the studied area. The mines in the area (differentiated between old-school/traditional mining or mechanical mining) were classified with the consideration of mining methods. Rubble varieties were differentiated, the bedding of rubble beds was studied along profiles, and the elevation difference between mines of mechanical mining and Stream Séd was determined. The calcareous content and structure compactness of 124 samples originating from dolomite, rubble, and non-rubble in the Bakony Region were compared. The data prove that the rubble developed by dissolution. Dissolution might have been caused by both meteoric water and karstwater. The rubble of mines excavated by traditional mining mainly developed to the effect of the dissolution effect of meteoric water (the rubble beds are of coarser and coarser grain size downwards), while the mines excavated by mechanical mining were formed to the dissolution effect of karstwater (the rubble beds are coarser and coarser upwards). The formation of rubble by karstwater origin has not been mentioned in the literature yet. However, dissolution of meteoric water origin may also take place in the case of the latter, and dissolution of karstwater origin also plays a role in the development of mines excavated by traditional mining.
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Sweatman, Winston, e Kevin White. "MISG, mines and variability". ANZIAM Journal 63 (7 giugno 2022): C43—C55. http://dx.doi.org/10.21914/anziamj.v63.17154.
Testo completoAbstract (sommario):
In 2016, a Mathematics-in-Industry Study Group (MISG) project considered the construction of mining sequences, that is, the process connecting ore extraction with specific orders. In particular, the meeting considered the potential for using knowledge about geological variability within the ore. This article revisits this MISG project and the approach developed for thinking about the problem as the build for an order progresses. We provide new perspectives on this approach and outline possible ways for further development. References L. Caccetta and S. P. Hill. An application of branch and cut to open pit mine scheduling. J. Global Opt. 27 (2003), pp. 349–365. doi: 10.1023/A:1024835022186 M. Ibrahimov, A. Mohais, S. Schellenberg, and Z. Michalewicz. Scheduling in iron ore open-pit mining. Int. J. Adv. Man. Tech. 72.5–8 (2014), pp. 1021–1037. doi: 10.1007/s00170-014-5619-8 M. Menabde, G. Froyland, P. Stone, and G. A. Yeates. Mining schedule optimisation for conditionally simulated orebodies. Advances in Applied Strategic Mine Planning. Ed. by R. Dimitrakopoulos. Springer International Publishing, 2018, pp. 91–100. doi: 10.1007/978-3-319-69320-0_8 W. L. Sweatman, K. White, A. Albrecht, M. Peron, P. Pudney, and D. Whittle. Mining sequencing to control blend quality. Proceedings of the 2016 Mathematics and Statistics in Industry Study Group, MISG-2016. Ed. by P. Pudney and A. J. Roberts. Vol. 58. ANZIAM J. 2018, pp. M33–M66. doi: 10.21914/anziamj.v58i0.12475
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Afqari, Muhammad Rifky, e Arya Hadi Dharmawan. "Strategi Nafkah, Karakter Sosio-Budaya dan Relasi Sosial Rumahtangga Penambang Belerang". Jurnal Sains Komunikasi dan Pengembangan Masyarakat [JSKPM] 2, n. 4 (1 agosto 2018): 551. http://dx.doi.org/10.29244/jskpm.2.4.551-566.
Testo completoAbstract (sommario):
Mining is a buisness that is highly dependent on environmental conditions, climate, and policies are always changing every moment. Social and ecological changes happend more quickly so that the rural miner households in general are often faced with the uncertainties that can lead to vlunerability. Many livelihood systems are used by miner household to survive. In implementating the strategy, of living, miner households take advantage of the five assets or livelihood capital (natural capital, human capital, physical capital, financial capital, and social capital) to make a living strategy for the continuation of life. The purpose of this research is to find out how social capital especially social relation support livelihood structure of sulfur miners household in Tamansari Village, Banyuwangi District, East Java. This study used the quantitative approach using questioner instrument and qualitative approach through depth interview.Keywords: miner household, livelihood assets, livelihood strategies, livelihood structure, social relation ABSTRAKUsaha pertambangan merupakan usaha yang sangat bergantung pada kondisi lingkungan, iklim, dan kebijakan yang selalu berubah-ubah. Perubahan-perubahan sosial maupun ekologi tersebut terjadi semakin cepat sehingga rumahtangga penambang di pedesaan umumnya sering dihadapkan pada ketidakpastian yang dapat menimbulkan kerentanan. Berbagai strategi nafkah digunakan oleh rumahtangga penambang untuk dapat bertahan hidup. Dalam melaksanakan strategi nafkah, rumahtangga penambang memanfaatkan livelihood assets atau modal penghidupan (modal alam, modal manusia, modal fisik, modal finansial, dan modal sosial) untuk keberlangsungan hidup mereka. Penelitian ini bertujuan untuk mengetahui bagaimana modal sosial terutama relasi sosial mendukung struktur nafkah rumahtangga penambang belerang di Desa Tamansari, Kabupaten Banyuwangi, Jawa Timur. Penelitian ini menggunakan metode kuantitatif dengan pendekatan survei melalui instrumen kuesioner didukung dengan metode kualitatif melalui wawancara mendalam.Kata kunci: rumahtangga penambang, modal nafkah, relasi sosial, strategi nafkah, struktur nafkah
32
Ma, Baodong, Xiangru Yang, Yajiao Yu, Yang Shu e Defu Che. "Investigation of Vegetation Changes in Different Mining Areas in Liaoning Province, China, Using Multisource Remote Sensing Data". Remote Sensing 13, n. 24 (20 dicembre 2021): 5168. http://dx.doi.org/10.3390/rs13245168.
Testo completoAbstract (sommario):
Mining can provide necessary mineral resources for humans. However, mining activities may cause damage to the surrounding ecology and environment. Vegetation change analysis is a key tool for evaluating damage to ecology and the environment. Liaoning is one of the major mining provinces in China, with rich mineral resources and long-term, high-intensity mining activities. Taking Liaoning Province as an example, vegetation change in six mining areas was investigated using multisource remote sensing data to evaluate ecological and environmental changes. Based on MODIS NDVI series data from 2000 to 2019, change trends of vegetation were evaluated using linear regression. According to the results, there are large highly degraded vegetation areas in the Anshan, Benxi, and Yingkou mining areas, which indicates that mining activities have seriously damaged the vegetation in these areas. In contrast, there are considerable areas with improved vegetation in the Anshan, Fushun, and Fuxin mining areas, which indicates that ecological reclamation has played a positive role in these areas. Based on Sentinel-2A data, leaf chlorophyll content was inferred by using the vegetation index MERIS Terrestrial Chlorophyll Index (MTCI) after measurement of leaf spectra and chlorophyll content were carried out on the ground to validate the performance of MTCI. According to the results, the leaf chlorophyll content in the mines is generally lower than in adjacent areas in these mining areas with individual differences. In the Yingkou mining area, the chlorophyll content in adjacent areas is close to the magnesite mines, which means the spillover effect of environmental pollution in mines should be considerable. In the Anshan, Benxi, and Diaobingshan mining areas, the environmental stress on adjacent areas is slight. All in all, iron and magnesite open-pit mines should be monitored closely for vegetation destruction and stress due to the high intensity of mining activities and serious pollution. In contrast, the disturbance to vegetation is limited in resource-exhausted open-pit coal mines and underground coal mines. It is suggested that land reclamation should be enhanced to improve the vegetation in active open-pit mining areas, such as the Anshan, Benxi, and Yingkou mining areas. Additionally, environmental protection measures should be enhanced to relieve vegetation stress in the Yingkou mining area.
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Mocek, Piotr. "Research on the Environmental Impact of Industrial Noise Emitted By Mine and Mining Plants". Management Systems in Production Engineering 30, n. 2 (19 maggio 2022): 146–55. http://dx.doi.org/10.2478/mspe-2022-0018.
Testo completoAbstract (sommario):
Abstract The article presents the results of measurements of environmental noise accompanying the operation of devices operated in surface facilities of hard coal mines and noise generated in technological processes related to the loading and transport of spoil and materials necessary for production. The research results presented in the article are part of the program of “Consequences of excessive noise in the mining environment of hard coal mines”, the overarching goal of which is to reduce the emission of industrial noise. The research described in the article, carried out using the sampling method, was introduced in order to determine the actual values of noise levels emitted to the external environment from mines and mining plants, as well as to identify the acoustic power levels of devices and processes constituting the main sources of noise in mines. The obtained results showed that mines and mining plants are often not fully aware of the scale of the environmental impact of undesirable noise they emit. Therefore, the current periodic measurements of environmental noise should be replaced with permanent monitoring, which will be beneficial not only for the environment, residents of housing estates located near mines, but also for the mining plants themselves.
34
Deng, Bao Ping, Shuai Liu, Chen Wang, Yao Dong Jiang e Hong Wei Wang. "Numerical Investigation on Passing through Goaf in Coal Mine Failurezone". Applied Mechanics and Materials 275-277 (gennaio 2013): 1518–24. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.1518.
Testo completoAbstract (sommario):
Random mining by small coal mines left many destruction districts with a large range in Fenxi mining district. According to incomplete statistics, the destroyed areas by small coal mines amount to nearly one hundred square kilometers and have over three hundred million tons of resource reserves in Xinliu, Xinyu and Xinyang these three fields. Small coal mines tend to use outdated techniques such as replacing mining with advancement, small excavation with large stoping and room pillar mining technique, which have a stoping rate of only 10% to 25%. Some of the wellheads were not closed seamlessly, which resulted in self-combustion; some were damaged due to the mining of the lower coal seam. A serious security risk existed during the mining of the lower coal seam due to the uncertainty of gas, water and roof pressure. In addition, the destructed area by small coal mines is badly large in Shanxi Province and even the whole country which remains a huge amount of resources. The implementation of this subject is significant.
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CLARY, RENEE M. "THE ROYAL SCHOOL OF MINES: HENRY DE LA BECHE’S CONVERGENCE OF PROFESSIONALIZATION AND PUBLIC ADVOCACY". Earth Sciences History 39, n. 2 (12 novembre 2020): 291–304. http://dx.doi.org/10.17704/1944-6187-39.2.291.
Testo completoAbstract (sommario):
ABSTRACT Several European countries instituted mining schools in the late 1700s, including France, Germany, Hungary, and Russia. However, since England’s mining industry was privatized with little government involvement, Great Britain was decades behind with the creation of a school of mines. In 1835, Henry De la Beche (1796–1855) became the first director of the Ordnance Geological Survey, precursor to the British Geological Survey. De la Beche used this position to advance geology’s professionalization, which would include the establishment of an applied geology museum, mining records storehouse, and a school of mines. The Museum of Economic Geology, displaying the country’s mineral resources and geology, was De la Beche’s first success. Founded in 1835, it opened to the public in 1841. The Mining Records Office opened in 1840 as a repository for plans of working and abandoned mines. An early public advocate for workers’ safety, De la Beche lobbied for government inspections of collieries, immediate reporting of mining accidents, and proper plans of mines. The School of Mines was De la Beche’s third accomplishment in geology’s professionalization. As an outgrowth of the museum, it was formally opened in 1851 along with the larger Museum of Practical Geology, the Museum of Economic Geology’s successor. De la Beche’s intent for the School of Mines—instruction as a combination of science and practice—seems modern in its approach. In 1843, funding was allocated for lectures on the practical applications of geology, but these were not implemented until the School of Mines opened in 1851. In his effort to educate everyone—from miner to mine owner—De la Beche transcended social boundaries and supported open, public lectures. As a result, some considered him a class traitor. De la Beche used his position to advocate for advancement of the mining industry to include miner safety and public education. Therefore, while the Royal School of Mines emerged later than many of its European counterparts, it was part of a systematic professionalization of geology, coupled with education and a public advocacy for mining participants.
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Elmardi Suleiman Khayal, Dr Osama Mohammed, e Dr Elhassan Bashier Elagab. "A REVIEW STUDY IN MINING INDUSTRY". International Journal of Engineering Applied Sciences and Technology 7, n. 6 (1 ottobre 2022): 1–14. http://dx.doi.org/10.33564/ijeast.2022.v07i06.001.
Testo completoAbstract (sommario):
a comprehensive literature review of mining extraction and industry was made. The review discusses thoroughly mining industry from different viewpoints that includes general introduction, historical background of mining industry, mines development and life cycle, mining extraction techniques, machines used in mining processes, mineral processing, environmental effect on operators and the surrounding area, mining industry, safety precautions in mining industry, human rights abuses occurring within mining sites and communities in close proximity, mines records, metal reserves and recycling, and finally the mining industry in Sudan which includes history, production & impact, legal frame work, commodities, gold extraction and outlook.
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Tambunan, Yunita Kristina. "Analisis Pengaruh Kapur Tohor (CaO) dan Tawas Terhadap Parameter TSS dan pH di Desa Huta Dame Kecamatan Penyabungan Utara Kabupaten Mandailing Natal". Jurnal Pengabdian Masyarakat dan Riset Pendidikan 2, n. 1 (24 agosto 2023): 251–55. http://dx.doi.org/10.31004/jerkin.v2i1.156.
Testo completoAbstract (sommario):
The people's gold mining activities in Huta Dame Village, Kotanopan Utara District, Mandailing Natal are still very simple. The purpose of this study was to analyze the TSS and pH parameters around the gold mining area so that they comply with quality standards. This research method is by interviews and direct observation to the field. The results of the analysis showed that the quality of acid mine drainage before treatment was 4.26 and after the addition of quicklime in 1 gram it was still acidic but in the addition of quicklime in the 65th minute (3 grams) a pH of 6.02 was obtained and it met the quality standard. The addition of 1 and 3 grams of alum is still acidic and this can cause the air in the mining environment to be corrosive due to the large amount of heavy metals originating from rocks which can cause environmental damage, due to excessive use of mercury resulting in the emergence of acid mine drainage. The addition of 1 and 3 grams of quicklime, TSS values 48 & 38 mg/l . The TSS values for the addition of 1 & 3 grams of alum were 20 & 28 mg/l and met the quality standards. Thus the use of quicklime in gold mining waste is more effective than the use of alum as an acid mine drainage treatment method.
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Morony, Michael. "The Early Islamic Mining Boom". Journal of the Economic and Social History of the Orient 62, n. 1 (6 dicembre 2019): 166–221. http://dx.doi.org/10.1163/15685209-12341477.
Testo completoAbstract (sommario):
AbstractThe present article shows that, according to archaeological and literary evidence, an expansion in mining occurred in the early Islamic world as a result of changes in mining technology at the end of Late Antiquity. The production of gold, silver, copper, iron, and other minerals is shown to have peaked in the eighth and ninth centuries and then to have declined during the tenth and eleventh centuries due to insecurity and/or exhaustion of the mines. Mining development was financed privately, and mines were usually private property.
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Li, Hanting, Miaomiao Xie, Huihui Wang, Shaoling Li e Meng Xu. "Spatial Heterogeneity of Vegetation Response to Mining Activities in Resource Regions of Northwestern China". Remote Sensing 12, n. 19 (6 ottobre 2020): 3247. http://dx.doi.org/10.3390/rs12193247.
Testo completoAbstract (sommario):
Aggregated mining development has direct and indirect impacts on vegetation changes. This impact shows spatial differences due to the complex influence of multiple mines, which is a common issue in resource regions. To estimate the spatial heterogeneity of vegetation response to mining activities, we coupled vegetation changes and mining development through a geographically weighted regression (GWR) model for three cumulative periods between 1999 and 2018 in integrated resource regions of northwestern China. Vegetation changes were monitored by Sen’s slope and the Mann–Kendall test according to a total of 72 Landsat images. Spatial distribution of mining development was quantified, due to four land-use maps in 2000, 2005, 2010, and 2017. The results showed that 80% of vegetation in the study area experienced different degrees of degradation, more serious in the overlapping areas of multiple mines and mining areas. The scope of influence for single mines on vegetation shrunk by about 48%, and the mean coefficients increased by 20%, closer to mining areas. The scope of influence for multiple mines on vegetation gradually expanded to 86% from the outer edge to the inner overlapping areas of mining areas, where the mean coefficients increased by 92%. The correlation between elevation and vegetation changes varied according to the average elevation of the total mining areas. Ultimately, the available ecological remediation should be systematically considered for local conditions and mining consequences.
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Wang, Yuqing, Yongkui Shi e Jian Hao. "Safety Evaluation and Simulation Research of Filling Mining Mine—A Case Study of Jisuo Coal Mine". Sustainability 15, n. 13 (26 giugno 2023): 10156. http://dx.doi.org/10.3390/su151310156.
Testo completoAbstract (sommario):
With the demand for green mining in coal mines, filling mining is becoming more and more popular, resulting in more complex production systems and more potential safety hazards. Therefore, it is very important to evaluate the safety of filling mining mines and propose improvement measures. Aiming at the safety evaluation method of filling mining mines, this paper innovatively proposes a safety evaluation method based on entropy weight–attribute mathematical theory, which enriches the theoretical research related to the safety evaluation model of filling mining mines. Five secondary indexes and twenty-two tertiary indexes were selected. The weights were determined via the entropy weight method, and then the attribute mathematical theory was used for safety evaluation. The evaluation results show that the safety level of Jisuo Coal Mine is “relatively safe”, and the evaluation results are in good agreement with the actual situation of Jisuo Coal Mine, which verifies the applicability of the attribute mathematical theory. Finally, from the perspective of safety input, the simulation study is carried out by using system dynamics, and the dynamic change rule is analyzed. Additionally, improvement measures for filling mining mine safety are proposed so as to realize the reasonable optimization of resource allocation.
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Molina, Snider, Ismael Soto, Lily Sun e Ke Cheng Liu. "Pervasive Environment for Gases Detection and Collapses in Underground Mines". Advanced Materials Research 875-877 (febbraio 2014): 2056–61. http://dx.doi.org/10.4028/www.scientific.net/amr.875-877.2056.
Testo completoAbstract (sommario):
Safety is an element of extreme priority in mining operations; currently many traditional mining countries are investing in the implementation of wireless sensors capable of detecting risk factors. The objective of this research is to contribute to the implementation of sensors for continuous monitoring inside underground mines providing technical parameters for the design of sensor networks applied in underground coal mines. The analyzed of applying these systems in terms of Benefit, Opportunity, Cost and Risk are discussed. Finally, a dynamic assessment of safety at underground mines it is proposed, this approach offers a contribution to design personalized monitoring networks, the experience developed in coal mines provides a tool that facilitates the application development of technology within underground coal mines.
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Nguyen, Ngoc Minh, e Duc Thang Pham. "Tendencies of Mining Technology Development in Relation to Deep Mines". Mining science and technology 4, n. 1 (27 aprile 2019): 16–22. http://dx.doi.org/10.17073/2500-0632-2019-1-16-22.
Testo completoAbstract (sommario):
Mineral demand rapidly increases; as a result, underground mining activities gradually dig into the earth’s crust to deeper levels. For instance, the depth of coal mines has reached 1500 m, whereas the depth of mines for nonferrous metals has already achieved around 4500 m. Deep mining faces a number of technical and environmental challenges, first of all, great rock mass stresses, high temperature and long winding distance. The traditional technologies are hardly capable to provide the development and extraction efficiency and safety. That is why the need in developing and implementation of new modern mining technologies arose. In roadheading, TBM (tunnelboring machine) method is gradually introduced. A TBM combines the functions of rock breaking, support installation, mucking and conveying rock. In mining industry, smart mining based on mechanized and automated mining methods is successfully implemented at coal mines. Besides, a technical concept of fluidized mining for deepseated mineral resources (6000 m and more) was proposed. This paper presents the review of the current global status of deep mining and highlights some of the newest technological achievements in roadheading and the mineral extraction processes.
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ZEMSKOV, A. N., e M. Y. LISKOVA. "ANALYZING CASES AND CIRCUMSTANCES OF EMERGENCE OF ACCIDENTS IN THE MINES AND MINES DEVELOPING GAS-BEARING FIELDS". News of the Tula state university. Sciences of Earth 2, n. 1 (2020): 67–77. http://dx.doi.org/10.46689/2218-5194-2020-2-1-67-77.
Testo completoAbstract (sommario):
Mining is followed by big loss of human life and high traumatism. And among the main reasons - explosions of coal dust and hydrocarbon gases on coal mines, the gasdynamic phenomena and explosions of gases on potash mines. Gas was and remains the most terrible source of natural dangers in mines and mines, the object demanding continuous and careful studying. The analysis of the breeds given on natural gas content, studying of the nature usual and the souffle of gas-allocations, emergence and courses of the gas-dynamical phenomena allow to optimize technologies of mining and to ensure safety of work.
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Xu, Leran. "Does Green Transition Affect the Performance of Domestic Mining Enterprises". SHS Web of Conferences 151 (2022): 01025. http://dx.doi.org/10.1051/shsconf/202215101025.
Testo completoAbstract (sommario):
The rise of green economy and sustainable development requires enterprises to pay more attention to comprehensive performance in the process of performance evaluation. With the rise of the concept of green mine, mine performance evaluation also pays more attention to environmental protection and comprehensive utilization of resources. The comprehensive performance evaluation index system of mines is constructed from three aspects: economic output performance, comprehensive development and utilization performance, and environmental governance performance. The comprehensive performance of 18 major mines in Songxian County, Henan Province is evaluated by using the analytic hierarchy process and entropy method. The results show that the overall performance of the main mines in Songxian County is low, and most of the mines have poor performance in comprehensive development and utilization and environmental governance. The task of building green mines is still very heavy.
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Hakim, Revaldo Xsanal, Ferry Putrawansyah e Riduan Syahri. "Penerapan Algoritma C4.5 Untuk Prediksi Anak Stunting Di Kota Pagar Alam". Jurnal Tekno Kompak 18, n. 2 (16 aprile 2024): 269. http://dx.doi.org/10.33365/jtk.v18i2.4078.
Testo completoAbstract (sommario):
Di Pagar Alam, Prediksi dan pengukuran tingkat Stunting masih mengandalkan analisis sekunder. Kader Posyandu melibatkan diri dalam mengukur kondisi balita, dan hasilnya diserahkan kepada ahli untuk menilai apakah balita tersebut mengalami Stunting atau tidak. Tujuan dari penelitian ini adalah mengaplikasikan Algoritma C4.5 untuk melakukan Prediksi terkait kasus Stunting pada anak. Dari permasalahan yang ada diatas, maka metode yang dapat menyelesaikan permasalahan ini yaitu Algoritma C4.5 yang termasuk dalam Pohon Keputusan pada Data Mining. Proses Data Mining peneliti menggunakan salah satu metode CRIPSP-DM dan pengujian Data Mining menggunakan Confusion Matrix serta pengujian Sistem menggunakan Black Box Testing. Hasil dalam penelitian ini berupa sebuah Sistem yang menerapkan aturan dari Pohon keputusan. Sistem Prediksi status gizi Anak yang dirancang penulis layak karena dapat mengkategorikan status gizi balita. balita secara otomatis berdasarkan Zscore yang ditetapkan dan hanya terdapat selisih 11,8% dari pengujian Prediksi dataset yang sama menggunakan Rapid Miner. Sistem yang penulis rancang dapat lebih cepat dan efektif dalam memPrediksi status gizi Anak. Berdasarkan Berdasarkan data hasil uji, dapat disimpulkan bahwa akurasi Algoritma C.4.5 untuk memPrediksi anak Stunting yaitu 88,20% tergolong baik. Sedangkan pengujian Sistem menggunakan Black Box Testing memperoleh total 4.35 masuk ke kategori sangat layak. Tujuan Sistem ini adalah membantu tenaga kesehatan dalam membuat keputusan terkait Prediksi status gizi balita. Sistem Prediksi ini bermanfaat untuk mengidentifikasi balita berisiko gizi buruk sehingga tindakan pencegahan dapat dilakukan dengan lebih efektif.
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Li, Shuai, Zeming Zhao, Haoxuan Yu e Xinmin Wang. "The Recent Progress China Has Made in the Backfill Mining Method, Part II: The Composition and Typical Examples of Backfill Systems". Minerals 11, n. 12 (2 dicembre 2021): 1362. http://dx.doi.org/10.3390/min11121362.
Testo completoAbstract (sommario):
The backfill mining method is a widely used mining method in the major mines of China, which can maximize the recovery of mineral resources and protect the environment. Currently, major mines in China are starting to build backfill systems to apply the backfill mining method, therefore, Part II reviews the progress China has made on creating backfill systems, of which the main contents include: (1) Composition of the backfill system common in Chinese mines; (2) Typical examples of the backfill system in China. Finally, Part II serves as a guide to begin a conversation, and to encourage experts and scholars to engage in the research of this field.
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Balovtsev, S. V. "Higher rank aerological risks in coal mines". Gornye nauki i tekhnologii = Mining Science and Technology (Russia) 7, n. 4 (26 dicembre 2022): 310–19. http://dx.doi.org/10.17073/2500-0632-2022-08-18.
Testo completoAbstract (sommario):
The steady trend of complication of mining and geological factors in underground coal mining and at the same time the processes of mining intensification cause growth of dynamic manifestations of natural factors of mining, such as sudden coal and gas outbursts, rock bursts, rock collapses, leading to gas and dust explosions and fires. This requires developing the models of different phenomena manifestation risks, which enable improving the process safety of a mining enterprise. In this study, based on the methodology of aerological risk assessment in coal mines, a structural analysis of aerological risks was carried out. The criteria of hazard of mining-geological and mine engineering factors and vulnerability of schemes and methods of ventilation, ventilation facilities, and main fans were developed. A hierarchical structure of aerological risks of higher ranks was developed. The presented risk structure allows determining the area of superposition of hazards of coal mining and vulnerability of ventilation systems for each mine and its individual facilities, as well as quantifying these areas in the form of aerological risks. The ranges of aerological risk values of higher ranks for super-category mines and mines hazardous by sudden coal and gas outbursts for different ventilation modes were established. The presented methodology enables forecasting and reducing aerological risks in course of designing, operation, liquidation, and conservation of coal mines.
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Kim, Yangkyun, e Sean S. Lee. "Application of Artificial Neural Networks in Assessing Mining Subsidence Risk". Applied Sciences 10, n. 4 (14 febbraio 2020): 1302. http://dx.doi.org/10.3390/app10041302.
Testo completoAbstract (sommario):
Subsidence at abandoned mines sometimes causes destruction of local areas and casualties. This paper proposes a mine subsidence risk index and establishes a subsidence risk grade based on two separate analyses of A and B to predict the occurrence of subsidence at an abandoned mine. For the analyses, 227 locations were ultimately selected at 15 abandoned coal mines and 22 abandoned mines of other types (i.e., gold, silver, and metal mines). Analysis A predicts whether subsidence is likely using an artificial neural network. Analysis B assesses a mine subsidence risk index that indicates the extent of risk of subsidence. Results of both analyses are utilized to assign a subsidence risk grade to each ground location investigated. To check the model’s reliability, a new dataset of 22 locations was selected from five other abandoned mines; the subsidence risk grade results were compared with those of the actual ground conditions. The resulting correct prediction percentage for 13 subsidence locations of the abandoned mines was 83–86%. To improve reliability of the subsidence risk, much more subsidence data with greater variations in ground conditions is required, and various types of analyses by numerical and empirical approaches, etc. need to be combined.
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Wang, Lili, Liao Yang, Weisheng Wang, Baili Chen e Xiaolin Sun. "Monitoring Mining Activities Using Sentinel-1A InSAR Coherence in Open-Pit Coal Mines". Remote Sensing 13, n. 21 (8 novembre 2021): 4485. http://dx.doi.org/10.3390/rs13214485.
Testo completoAbstract (sommario):
Long-term continuous monitoring of the mining activities in open-pit coal mines is conducive to planning and management of the mining operations. Additionally, this faciliatates assessment on their environmental impact and supervises illegal mining behaviors. Interferometric Synthetic Aperture Radar (InSAR) technology can be effectively applied in the monitoring of open-pit mines where vegetation is sparse and land cover is dominated by bare rock. The main objective of this study is to monitor the mining activities of four open-pit coal mines in the Wucaiwan mining area in China from 2018 to 2020, namely No. 1, No. 2 (containing two mining areas), and No. 3. We use the normalized differential activity index (NDAI) based on the coherence coefficient as an indicator of the mine activity due to its robustness to temporal and spatial decorrelation. After analyzing and removing the decorrelation caused by rain and snow weather, 70 NDAI images in 12-day intervals are obtained from Sentinel-1A InSAR coherence images. Then, the annually-averaged NDAI images are applied to an RGB composite technique (red for 2018, green for 2019, blue for 2020) to express the interannual variation of the mining activities. Points of interest are then selected for NDAI time series analysis. The RGB composite results indicated that No. 1 and 3 open-pit coal mines were continuously mined during the three years; whereas, the two mining areas of No. 2 were mainly active in 2018. The 12-day NDAI time-series graphs of No. 2 open-pit coal mine also indicate that the coal piles located in the coal transferring area of the first mining area were not completely removed until April 2019. It is also seen that the second mining area was decommissioned in November 2018 and became rehabilitated in July 2019. Results were validated using the Sentinel-2A images and related background information confirming the efficiency of the proposed approach for monitoring the mining activity in open-pit mines.
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Bascetin, A., S. Tuylu e D. Adıguzel. "New Technologies in Mining Sustainable Production. Tailings Management and Mining Chemicals". Engineering Journal of Satbayev University 144, n. 6 (2022): 41–50. http://dx.doi.org/10.51301/ejsu.2022.i6.06.
Testo completoAbstract (sommario):
Million tonnes of tailings are formed in the world each year due to increasing mining activities along with the increase in need for raw materials. The tailings may cause important environmental problems. Therefore, tailings management is very important issue in mining operations. In recent years, with the developing technology, the new tailing disposal technologies such as paste and using geotextile materials have increased considerably. These methods have many advantages in terms of both environmental and cost reducing. Another important issue in terms of mining is the accidents and occupational health problems in underground coal mines. The problems can be described as spontaneous combustion, roof collapse, gases extraction from coal bed, and etc. These accidents have been significantly reduced with use of mining chemicals in underground mines. In this study, tailing management and mining chemicals which are very important in terms of mining applications are examined.