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Relevant bibliographies by topics / Dredging

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Academic literature on the topic 'Dredging'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 August 2024

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Journal articles on the topic "Dredging"

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Shah, Yogesh. "Revolutionizing Dredging Practices with Smart Dredging Management System." International Journal of Science and Research (IJSR) 13, no. 3 (March 5, 2024): 1862–68. http://dx.doi.org/10.21275/sr24328135539.

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Eke, C. C., L. Frank, U. P. Ahaji, V. Ezeh, C. C. Amadi, and P. O. C. Okeke. "Dredging of Harbours and Rivers: Review of Practices and Associated Environmental Impacts." IIARD INTERNATIONAL JOURNAL OF GEOGRAPHY AND ENVIRONMENTAL MANAGEMENT 9, no. 5 (October 13, 2023): 22–36. http://dx.doi.org/10.56201/ijgem.v9.no5.2023.pg22.36.

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Dredging of harbors and rivers is essential for waterway accessibility and infrastructure enhancement. This review explores key aspects of dredging, including types, applications, environmental concerns, mitigation strategies, and insightful case studies. This paper highlights the importance of dredging in improving water transport and related sectors. It covers diverse dredging types and applications such as Maintenance dredging, Capital dredging, Environmental dredging and Land Reclamation showcasing their adaptability to different project needs. It examines environmental issues linked to dredging and proposes effective mitigation methods. These measures address sediment disturbance, habitat disruption, and water quality degradation. There were two case histories which are The panama Canal Expansion and The Rhine river dredging in Europe illustrating practical dredging applications. These cases offer insights into both successful practices and challenges encountered during project execution. This, summarizes key findings and provides sustainable dredging recommendations. These include enhanced planning, monitoring, and the integration of eco-friendly technologies.

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Joseph, B. "Dredging Orientalism." Eighteenth-Century Life 38, no. 2 (April 1, 2014): 120–26. http://dx.doi.org/10.1215/00982601-2646209.

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Zheng, Jian Xin, Chuan Shao Liu, and Yue Hong Tian. "Design of New-Type Vertical Dredging Equipment for Coal Bunker." Advanced Materials Research 228-229 (April 2011): 568–73. http://dx.doi.org/10.4028/www.scientific.net/amr.228-229.568.

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A new-type of dredging equipment for the coal bunker is designed to solve the clogging problem, which avoids the disadvantages of the existing dredging technology used in the collieries. The new dredging method borrows ideas from air cannon dredging technology, and applies dynamic high pressure generation principle. In the process of dredging, the rubber bullet in the launch canister is accelerated by the controlled high pressure air, and impacts the coal in the arch with high speed so as to recover the coal bunker. The dredging mechanism and process are expatiated and the main structures of the dredging equipment are introduced. The structure of the new type dredging equipment for the coal bunker is simple and the equipment is of high adaptability and safety.

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Kalashnikov, Arsenii A. "Design solution for the dredging slots production." Russian Journal of Water Transport, no. 72 (September 20, 2022): 208–15. http://dx.doi.org/10.37890/jwt.vi72.306.

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The article discusses the issue of design solution for the dredging slots production in the Ob River section. An important challenge in the dredging and straightening works production is the issue of the dredging slots stability. The experience of researching the issue is considered, a brief review of the literature is presented. The necessity of developing design solution for the dredging slots production, necessity of dredging slots stability. Field data were obtained and analyzed in the course of track works on the Ob River cripples. A Design solution for the dredging slots production is proposed. The ways of further research of the dredging slots stability issue are outlined.

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Boris, Talgamer. "Assessing the capacity of dredging excavations to place dredging tailings dumps in the course of deep and man-made placer mining." Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal, no. 3 (June 20, 2022): 44–54. http://dx.doi.org/10.21440/0536-1028-2022-3-44-54.

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Introduction. The dredge stern is often backed up by dredging tailings in the course of deep and man-made placers dredging. One of the reasons for that is the decreased capacity of dredging excavations at the dumping point caused by collapsed pit walls, which is not taken into account by known design methods. Research objective is to evaluate the degree of the developed space capacity reduction at dredging pits for dredging tailings storage, depending on the dredging conditions. Methods of research. Capacity prediction for a dredging excavation for dredging tailings storage should consider natural slope formation of open pit walls during the period of dredge advance to a distance equal to the distance of the poop decks from the face. The degree of reduction in dredging excavation lower part receiving capacity should be set based on pit walls flattening, which depends on rock composition (cohesiveness degree), loose deposits thickness, face width, and dredge working parameters. Results. The results of graphic-analytical calculation revealed that dredging excavation lower part receiving capacity is reduced from 3 to 10% due to pit walls collapse as loose deposits thickness increases from 10 to 34 m for the most favorable face width of a 380-liter dredge, which may result in a significant increase in dredge stern backing up by dredging tailings. Conclusions. At deep and man-made placers, when calculating the parameters of a dredging tailings dump, it is recommended to introduce an amendment into the existing methods, that considers the developed space lower part capacity reduction due to pit walls collapse.

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Yehao, Kang, Li Shuaihao, and Ji Houlin. "Overview and Prospect of Underwater Desilting Robot." Journal of Engineering Research and Reports 25, no. 9 (September 28, 2023): 97–111. http://dx.doi.org/10.9734/jerr/2023/v25i9984.

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The serious accumulation of sludge in the water outlet of the South to North Water Diversion Project poses a constraint on the sustainable development of the water ecosystem and the long-term development of the water storage system. Silt accumulation may lead to problems such as deterioration of water quality, damage to water ecosystems, and water level decline. In order to solve the problem of sludge accumulation, it is necessary to carry out dredging and dredging work for the water body at the outlet of the water outlet. Dredging can restore water capacity, maintain ecological balance, and contribute to the sustainable management of water systems. At present, there are still many shortcomings in the existing dredging technology for small and medium-sized water bodies on the market, which is difficult to meet the requirements of dredging in the South to North Water Diversion Project. Therefore, it is very important and necessary to develop new dredging robots to meet the environmental dredging needs. This article is based on the background of water dredging and control at the exit of the South to North Water Diversion Project. Through in-depth analysis of existing dredging robot technology and underwater robot technology, and combined with research status at home and abroad, it is planned to provide guidance and direction for the design and development of underwater dredging robot humans with environmental protection dredging functions in the future.

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Greene, Paul, George Follett, and Clint Henker. "Munitions and Dredging Experience on the United States Coast." Marine Technology Society Journal 43, no. 4 (October 1, 2009): 127–31. http://dx.doi.org/10.4031/mtsj.43.4.2.

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AbstractA number of dredging projects have unknowingly and unfortunately encountered munitions and explosives of concern (MEC). MEC have been discovered on dredges (e.g., in dragheads, cutterheads, pump casings) and at the dredged material placement site. Detonations have occurred that have either damaged the dredge plant or have even sunk the dredging vessel. A number of recent dredging projects have proactively addressed MEC issues before the start of construction, thereby greatly reducing overall risk and MEC cleanup costs. This paper explains common dredging equipment, discusses techniques useful in reducing the inherent risks of dredging in sediments containing MEC, and discusses lessons learned during various dredging projects involving MEC.Application of MEC avoidance and exclusion techniques during dredging operations is minor compared to the enormous cost of post-dredging MEC cleanup. Most importantly, it is possible to avoid exposing the public to explosive safety hazards and minimize those to workers with proper planning and execution.

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Bashir, Mohammad Obaidullah Ibne. "Application of Artificial Intelligence (AI) in Dredging Efficiency in Bangladesh." Annals of Emerging Technologies in Computing 6, no. 1 (January 1, 2022): 74–88. http://dx.doi.org/10.33166/aetic.2022.01.005.

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The integration of Artificial Intelligence (AI) into the dredging systems and dredging machinery used in "capital" and "maintenance" dredging in Bangladesh can enhance the efficiency of the machines and dredging process, enabling the operators to perform regular and repetitive dredging tasks safely in the rivers, ports, and estuaries all over the country. AI, including Big Data, Machine Learning, Internet of Thing, Blockchain and Sensors and Simulators with their catalytic potentials, can systematically compile and evaluate specific data collected from different sources, develop applications or simulators, connect the stakeholders on a virtual platform, store lakes of information without compromising their intellectual rights, predicting models to harness the challenges, minimise the cost of dredging, identify possible threats and help protect the already dredged areas by giving timely signals for further maintenance. Furthermore, the application of AI modulated dredging devices and machinery can play a significant role when monitoring aspects becomes crucial, keeping environmental impacts mitigated without affecting the quality of the human environment. This study includes the evaluation of the application of AI – its prospect and challenges in the existing dredging systems in Bangladesh against the backdrop of the challenges faced in capital and maintenance dredging in the major rivers – and assess whether such inclusion of AI is likely to minimise the cost of dredging in the rivers of Bangladesh and facilitate the materialisation of the objectives of Bangladesh Delta Plan 2100.This paper studies the organisation's infrastructural requirement for the integration of AI into dredging systems, using benchmarking such as 1- "Understanding AI Ready Approach", 2-"Strategies for Implementing AI", 3-"Data Management", 4-"Creating AI Literate Workforce and Upskilling", and 5-"Identifying Threats" concerning the management and dredging operations of Bangladesh Inland Water Transport Authority (BIWTA), under Bangladesh Ministry of Shipping and Bangladesh Water Development Board (BWDB). The paper also uses several case studies such as channel dredging to show that the use of AI can bring a significant change in the dredging operations both in reducing the cost of dredging and in terms of harnessing the barriers in adaptive management and environmental impacts.

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Li, Jian Yong, Chao Zhang, Hong Lu Su, Fang Yi Li, Shun Shun Qin, and Zi Wu Liu. "The Simulation and Application of Whip-Impact Sediment Dredging Technology." Applied Mechanics and Materials 303-306 (February 2013): 2871–75. http://dx.doi.org/10.4028/www.scientific.net/amm.303-306.2871.

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Focusing on the dredging problem in Yellow River irrigation district, the whip-impact sediment dredging technology is put forward in the Xingjiadu Irrigation District. The finite element model of dredging process is built and the flow characteristic and behavior under design condition is studied, which can provide a theoretical basis for the feasibility of the whip-impact sediment dredging technology. Also, it can provide effective measures for the improvement of sediment dredging effects and whip-impact equipments.

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Dissertations / Theses on the topic "Dredging"

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Croft, Alex. "The effects of thin layer dredge material disposal on tidal marsh processes, Masonboro Island, NC /." Electronic version (PDF), 2003. http://dl.uncw.edu/etd/2003/crofta/alexcroft.html.

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Phelan, Richard B. "OTF DGPS for estuarine dredging and sounding surveys." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ30017.pdf.

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Mo, Kon-shing. "Comparing EA (EIA) process of dredging projects between United States (US) and Hong Kong (HK) /." Hong Kong : University of Hong Kong, 1995. http://sunzi.lib.hku.hk/hkuto/record.jsp?B14723402.

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Siyam, Ahmed Musa. "Reservoir sedimentation control." Thesis, University of Bristol, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324265.

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Vecino, Gustavo Angel. "Applying web-based project management techniques to dredging projects." College Park, Md.: University of Maryland, 2007. http://hdl.handle.net/1903/7796.

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Thesis (M.S.) -- University of Maryland, College Park, 2007.
Thesis research directed by: Dept. of Civil and Environmental Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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Boyd, Sian Ellen. "A comparative study of the responses of microfaunal and nematode assemblages to the disposal of dredged material." Thesis, Bangor University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298890.

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Poon, Sau-man Anne, and 潘秀文. "Dredging and reclamation impact on marine environment in Deep Bay." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1997. http://hub.hku.hk/bib/B31253866.

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Cooper, Keith. "Marine aggregate dredging : a new regional approach to environmental monitoring." Thesis, University of East Anglia, 2013. https://ueaeprints.uea.ac.uk/48093/.

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The subject of this thesis is the marine aggregate dredging industry, and specifically the approach taken to the monitoring of environmental effects on the seabed. The thesis forms the evidence required to allow the author to be examined for a PhD by Publication, and comprises of a list of the author’s publications, a confirmation of the author’s contribution to the multi-authored papers, and a critical analysis of the published work. The critical analysis takes the form of an essay, in which a case for switching to a new system of environmental monitoring is outlined. The essay presents a logical development of ideas, starting with a description of the aggregates dredging industry. This is followed by a critical analysis of the author’s past research, with a particular emphasis on how the findings from this work are relevant to the issue of monitoring. This earlier work has addressed themes of: Impact (Cumulative Effects), The Relationship between Sediments and Benthos, Recovery, Restoration, Habitat Mapping and Natural Variability. The essay then describes the current approach to monitoring, together with its limitations. This is followed by a description of the new monitoring approach, with an explanation of why it is considered more suitable for meeting the needs of both the industry and the industry regulators. The essay considers what steps would need to be taken to implement the approach in the major dredging regions of the UK.

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Poon, Sau-man Anne. "Dredging and reclamation impact on marine environment in Deep Bay /." Hong Kong : University of Hong Kong, 1997. http://sunzi.lib.hku.hk/hkuto/record.jsp?B18734558.

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Jory, Adam Matthew. "The fishery and ecology of the scallop Pecten maximus (L.) in Guernsey." Thesis, University of Southampton, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.313326.

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Books on the topic "Dredging"

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Yell, Denis. Dredging. London: T. Telford, 1995.

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Association, International Navigation. Injection dredging. Bruxelles, Belgique: PIANC, 2013.

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Dredging, Seminar 2005 (2005 Bombay India). Dredging Seminar, 2005. Visakhapatnam: Dredging Corporation of India, 2005.

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Яковлев, Петр Иванович. Дноуглубительные работы и технический флот: Dredging works and dredging fleet. Одесса: Астропринт, 2002.

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Turner, Thomas M. Fundamentals of hydraulic dredging. 2nd ed. New York, N.Y: ASCE Press, 1996.

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Webber, Bert. Dredging for gold: Documentary. Medford, Or: Webb Research Group, 1994.

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Canada. Dept. of Fisheries and Oceans. Fish Habitat and Dredging. S.l: s.n, 1985.

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Sosnow, A. D. Mitigation for port dredging. S.l: s.n, 1986.

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Alzieu, Claude. Dredging and marine environment. Plouzané [France]: Ifremer, 2005.

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B, Herbich John, ed. Handbook of dredging engineering. 2nd ed. New York: McGraw-Hill, 2000.

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Book chapters on the topic "Dredging"

1

Work, Paul A. "Dredging." In Encyclopedia of Estuaries, 204–6. Dordrecht: Springer Netherlands, 2015. http://dx.doi.org/10.1007/978-94-017-8801-4_250.

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Witthohn, Ralf. "Dredging." In International Shipping, 543–53. Wiesbaden: Springer Fachmedien Wiesbaden, 2022. http://dx.doi.org/10.1007/978-3-658-34273-9_7.

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Schoonees, Koos. "Dredging." In Fundamentals of Port Engineering, 306–87. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003227878-10.

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Burroughs, Richard. "Dredging." In Coastal Governance, 66–86. Washington, DC: Island Press/Center for Resource Economics, 2011. http://dx.doi.org/10.5822/978-1-61091-016-3_5.

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Nahler, Gerhard. "data dredging." In Dictionary of Pharmaceutical Medicine, 46. Vienna: Springer Vienna, 2009. http://dx.doi.org/10.1007/978-3-211-89836-9_342.

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Vogt, Craig, and Gregory Hartman. "Dredging dredge/dredging Practices and Environmental Considerations dredge/dredging environmental considerations." In Encyclopedia of Sustainability Science and Technology, 3028–52. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-0851-3_438.

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Jianjun, Hu, and Xu Kuangdi. "Dredging, Application of." In The ECPH Encyclopedia of Mining and Metallurgy, 1–3. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0740-1_317-1.

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Sargent, John H. "Dredging." In Civil Engineer's Reference Book, 41/1–41/13. Elsevier, 1989. http://dx.doi.org/10.1016/b978-0-408-01208-9.50045-2.

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"dredging." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 418. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_43709.

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"dredging." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 418. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_43710.

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Conference papers on the topic "Dredging"

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Rokosch, W. Dieter, and Niek J. Berg. "Dredging Efficiently - Dredging Techniques and Its Effects to the Environment." In Third Specialty Conference on Dredging and Dredged Material Disposal. Reston, VA: American Society of Civil Engineers, 2003. http://dx.doi.org/10.1061/40680(2003)97.

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Deliman, Patrick N., Carlos E. Ruiz, and Paul R. Schroeder. "Dredging Risk Assessment Modeling Applications (DRAMA) for Evaluation of Dredging Impacts." In Third Specialty Conference on Dredging and Dredged Material Disposal. Reston, VA: American Society of Civil Engineers, 2003. http://dx.doi.org/10.1061/40680(2003)60.

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van Duursen, Ewout, and Mark Winkelman. "New Approach of Deep Sea Dredging." In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-49351.

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A new approach of trailing suction dredging is presented. This approach is especially useful for dredging at depths over 100m. Normally a Jumbo Trailing Suction Hopper Dredger is used for dredging at depths of over 100m. This requires a large investment. The expensive dredging equipment is only used while dredging. This equipment is mainly “dead cargo” when sailing to the place of delivering the sand. Our new approach requires a significant lower investment. As the dredging equipment is used continuously, idle time is decreased and time for return of investment is shortened. The dredging depth is independent of the length of the trailing suction pipe and thus the length of the ship, unlike a normal Trailing Suction Hopper Dredger. Our approach consists of modular dredging equipment placed on e.g. a standard Platform Supply Vessel. By using the dredging equipment on this vessel, standard barges are continuously filled with sand. The dredging equipment consists of a submersible dredging unit connected to a hose. This dredging unit is suspended by wires from the Platform Supply Vessel. It is lowered to the required dredging depth by winches. The application of the dredging unit is like a normal Trailing Suction Hopper Dredger. The barges are loaded while sailing along the Platform Supply Vessel. The position of the dredging unit is constantly monitored. An extensive research project is initiated to develop this concept. Several scale model tests are performed at MARIN. Also a numerical model was designed. Extensive tests were performed on the hose. Another test was performed at TU Delft to investigate the transport of sand/water mixture through a hose stored on a reel. All this research has resulted in a reliable, inexpensive system to dredge at sea at great depths over 100m.

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Skluzacek, Tyler J. "Dredging a data lake." In Middleware '19: 20th International Middleware Conference. New York, NY, USA: ACM, 2019. http://dx.doi.org/10.1145/3366624.3368170.

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Nasner, Horst, Rainer Pieper, and Patrick Torn. "DREDGING OF TIDAL DUNES." In Proceedings of the 31st International Conference. World Scientific Publishing Company, 2009. http://dx.doi.org/10.1142/9789814277426_0228.

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Hannot, Stephan D. A., Jan G. Los, Bram A. W. van Spaendonk, Alex B. Kruijswijk, and Albert C. L. de Krijger. "Validating the Coupling of Multibody Dynamic Simulations With Sea Keeping Simulations." In ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/detc2013-12794.

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Dredging is the activity of excavating soil or other sediments from the bottom of a water body such as a lake or sea. The purpose of dredging varies: e.g. maintaining the depth of waterways or obtaining material for beach nourishment. Most ‘dredgers’ are composed of a floating structure (ship or pontoon) on which the dredging equipment that is used to excavate at the seabed is installed. Dredging at open sea, offshore dredging, becomes a more common operating condition. This means that dredgers will have to be designed with surface wave induced motions and forces in mind. Therefore simulating the motions of dredgers due to surface waves coupled with the motion of the dredging equipment is an important design analysis step. This requires a tool that can simulate a coupled sea keeping and multibody dynamic problem. In this work the theory, development and validation of such a simulation tool are discussed.

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Pocwiardowski, Pawel. "Efficient real-time dredging monitoring." In 2023 IEEE Underwater Technology (UT). IEEE, 2023. http://dx.doi.org/10.1109/ut49729.2023.10103426.

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Welp, Timothy, Michael Palermo, Mary Landin, Jack Davis, and Terri Prickett. "U.S. Army Corps of Engineers New Dredging Engineer Manual ``Dredging and Dredged Material Placement''." In Third Specialty Conference on Dredging and Dredged Material Disposal. Reston, VA: American Society of Civil Engineers, 2003. http://dx.doi.org/10.1061/40680(2003)125.

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Putranta, Dinariyana Dwi, Ketut Buda Artana, Kriyo Sambodho, and I. Made Ariana. "Risk Assessment on Subsea Gas Pipelines Located at Water Basin of Jetty Area due to Dredging and Operation After Dredging." In ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/omae2013-10358.

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This study addresses risk assessment of 14″ gas pipelines buried closed to jetty area due to the plan to dredge the water basin at jetty area. The dredging plan is aimed to enable a more spacious maneuvering basin at the jetty area to enable larger vessel to be served and easier control of tug boat operation during berthing process. Before dredging, the gas pipeline is located 133 m from the slope. This condition provides enough protection to the gas pipeline since large vessel will not reach the pipeline due to vessel’s draft restriction. After dredging, however, gas pipeline will be located only 49 m away from the slope. The water area after dredging allows larger vessel will be in the vicinity of the pipeline and hence impose risk to the existence of the gas pipeline. Risk to the pipelines due to dredging activities (drop/drag anchor, drop clamshell/object, ship sinking, and ground instability) and due to various vessels operation after dredging (drop/drag anchor, ship sinking, and ship grounding) are assessed by implementing quantitative risk assessment. Hence, this study is focused on the assessment of risk to the 14″ gas pipeline due to dredging activity including risk assessment during operation of the jetty after dredging. Based on pipeline and environmental data, all possible hazards are identified. Some hazards are screened out using ‘Failure Modes and Effects Analysis’ (FMEA) to obtain the list of potential hazards. In order to evaluate the acceptance criteria of all potential risks, the risk profiles are composed according to DNV-RP-F107 “Risk Assessment of Pipeline Protection”. As part of the assessment, geotechnical assessments of submarine landslide due to dredging are also considered. The effective stress approach is implemented to the assessment and submarine slope stability is analyzed using Bishop’s and Janbu’s methods of analysis. The risk profiles for all potential hazards are reported, and simulation results for different slope ratios are given to illustrate the stability of slope configuration during dredging.

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Sarkar, Mridul K., Neil Bose, Shuhong Chai, and Kim Dowling. "Conceptual Design of a Submersible Remotely Operated Swimming Dredger (SROSD)." In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-49868.

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Increasing use of deep-water dredging and mining vehicles has been anticipated for resource collection, engineering construction and environmental protection. Existing deep-dredging or mining equipment can be classified as i) diver-assisted dredging tools, ii) surface-floating dredgers with deep-dredging capability and iii) submersible dredgers. Diver assisted dredging tools have limited capacity and involve human risk. Surface floating dredgers can work to a specific dredging depth controlled by their ladder length, but modification is limited by their large size and significant cost. Submersible dredgers are deployed for sub-sea operations and are the focus of this research. Submersible crawlers and walkers work in a submerged terrain-contact condition and depend on their apparent weight and ground reactions to counteract the excavation forces. Crawlers are inefficient in negotiating difficult sub-sea terrain and walking submersibles are slow moving over long-distances. Considering the constraints of dredging depth, negotiation of uneven terrain, slow motion, interchange ability of excavation or transport sub-system components and station keeping during operation, a new type of submersible dredger or miner was conceived. In working mode, it imitates a walking motion by spuds that are also used for station keeping during dredging. For longdistance travel, the vehicle can swim by means of vector thrusters. The vector thrusters also help in position-keeping and motion-control during swimming. To offset higher forces generated during excavation of hard materials, spuds, variable buoyancy tanks and control planes are included as secondary station-keeping devices. The paper describes the general arrangement and the distinguished sub-systems of the conceptualised vehicle. Special attention was given to working and swimming locomotion and the methods of station keeping during operation. Investigations about the station-keeping, propulsion and controlling conditions of the vehicle are in progress. Experiments to measure the cutting forces from the cutter design are described. It is expected that the new design will significantly contribute to the evolution of existing deep-dredging equipment with improved efficiency, increased mobility and location control while minimising larger environmental disturbances.

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Reports on the topic "Dredging"

1

Welp, Timothy, Michael Tubman, Derek Wilson, and Cheryl Pollock. Water injection dredging. Coastal and Hydraulics Laboratory (U.S.), August 2017. http://dx.doi.org/10.21079/11681/22822.

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2

Palermo, Michael R. Environmental Effects of Dredging. Engineer Manual Series on Dredging and Dredged Material Disposal. Fort Belvoir, VA: Defense Technical Information Center, March 1988. http://dx.doi.org/10.21236/ada292912.

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3

Morang, Andrew. Interpreting Historic Dredging Data and Bathymetric Surveys to Support Recommendations for Altering Dredging. Fort Belvoir, VA: Defense Technical Information Center, March 1991. http://dx.doi.org/10.21236/ad1003874.

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4

Johnson, B. H., and T. M. Pachure. Estimating Dredging Sediment Resuspension Sources. Fort Belvoir, VA: Defense Technical Information Center, March 1999. http://dx.doi.org/10.21236/ada362892.

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5

Briuer, Elke. Dredging Research, Volume 1, Number 4. Fort Belvoir, VA: Defense Technical Information Center, December 1998. http://dx.doi.org/10.21236/ada360537.

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6

Reine, Kevin J., Dena D. Dickerson, and Douglas G. Clarke. Environmental Windows Associated with Dredging Operations. Fort Belvoir, VA: Defense Technical Information Center, December 1998. http://dx.doi.org/10.21236/ada361195.

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7

Briuer, Elke. Dredging Research. Volume 2, Number 1. Fort Belvoir, VA: Defense Technical Information Center, March 1999. http://dx.doi.org/10.21236/ada363568.

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8

Spigolon, S. J., and Jack Fowler. Geotechnical Site Investigations for Dredging Projects. Fort Belvoir, VA: Defense Technical Information Center, January 1995. http://dx.doi.org/10.21236/ada291333.

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9

Bird, Sandra L., and Mark Dortch. Contaminant Modeling. Environmental Effects of Dredging. Fort Belvoir, VA: Defense Technical Information Center, March 1988. http://dx.doi.org/10.21236/ada292982.

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10

McFall, Brian, Duncan Bryant, and Timothy Welp. Literature review of dredging physical models. Coastal and Hydraulics Laboratory (U.S.), June 2018. http://dx.doi.org/10.21079/11681/27348.

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