Relevant bibliographies by topics / Continuous Vertical Electrical Sounding

Academic literature on the topic 'Continuous Vertical Electrical Sounding'

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Published: 14 March 2023

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Journal articles on the topic "Continuous Vertical Electrical Sounding"

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Issah, Mohammed Mansuru, Akwasi Acheampong Aning, Reginald Mensah Noye, and Patrick Amankwaa Mainoo. "Prospecting for Groundwater Using the Continuous Vertical Electrical Sounding Method." European Scientific Journal, ESJ 14, no. 3 (January 31, 2018): 67. http://dx.doi.org/10.19044/esj.2018.v14n3p67.

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2-D CVES surveys using the Wenner configuration was carried out in 22 communities in the Tain District, Ghana. This was done with the objectives of assessing the subsurface geology, identify high groundwater potential zones for drilling high-yielding boreholes that could yield sustainable amount of groundwater. The collected resistivity data were converted from the apparent resistivity to 2-D modelsection using the least-square inversion algorithm with the help of Res2DInv software. The 2-D resistivity model-sections produced a high quality structural resolution leading to the demarcation of the layering of various lithological units, weathered layers and identification of important structures such as joints, fractures and faults. Quantitatively, it can be observed that all the drilled wet wells have aquifer zones between 30 m and 60 m within sandstone, siltstone and phyllite granitic environments. The result of the borehole drill logs revealed that the aquifers were within weathered and fractured zones and is in agreement with the models. The results showed that the boreholes yield within the study area varied between a minimum of 15 litres/min to a maximum 800 litres/min and the mean depth for intercepting aquifer was at about 30 m and below. The study revealed that the potential aquifer zones in the study area are mostly as a result of weathering of the overburden and fracturing of the underlying bedrock. The results suggest that the hydrogeology of the study area is highly complex since the development of groundwater is generally due to secondary porosities.
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J.Ganvir, Vinit, Arjun Singh, Pushpesh Kumar, Amaresh Kr. Singh, and Vineet Kumar. "Analysis Of Electrical Resistivity Data For The Delineation Of Ground Water Prospective Zones At Karchana Block Of Allahabad District. U. P. India." Volume 1 Issue 7 1, no. 7 (September 30, 2018): 1–10. http://dx.doi.org/10.31426/ijamsr.2018.1.7.711.

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Electrical resistivity of sounding of Karchana block was conducted to delineating the ground water feasibility and selection of sites for installation of bore wells. The reason for choosing this area have undergone stress for the natural resources like water is continuous declining of ground water due to urbanization and industrialization also it was dark block in 2008. 2 D resistivity imaging technique was utilized. The 2 D resistivity technique/electrical resistivity technique utilized the Schlumberger electrode array configuration because this array is moderately sensitive to both vertical and horizontal structures.Twenty (20) vertical electrical resistivity soundings were acquired with ABEM resistivity Terameter in Schlumberger configuration.
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Nováková, E., M. Karous, A. Zajíček, and M. Karousová. "Evaluation of ground penetrating radar and vertical electrical sounding methods to determine soil horizons and bedrock at the locality Dehtáře." Soil and Water Research 8, No. 3 (July 22, 2013): 105–12. http://dx.doi.org/10.17221/6/2012-swr.

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Recently, geophysical methods have been widely used in many fields including pedology. Two of them, ground penetrating radar (GPR) and vertical electrical sounding (VES) were employed at the Dehtáře experimental site with the aim to evaluate their application in the Cambisol and Stagnosol soil types and crystalline bedrock survey in Czech conditions. These measurements were complemented by the classical soil survey using a gouge auger. As a result, interpreted soil and rock environment profiles were obtained, with the identification of boundaries of Bg, C, and R soil horizons and bedrock at various degrees of weathering. The interpretation of measurement records demonstrated suitability of the VES and GPR method application, using GPR for imaging the soil profile and the top of bedrock, while the VES method gave better results in imaging greater depths. The research demonstrated advantages of the geophysical methods such as instancy, continuous imaging, and no disturbance of the subsurface. In spite of needing classical survey data for interpretation of the results obtained by the geophysical methods, their usage can bring better quality to the soil profile imaging.
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MOLANO, C. E., M. SALAMANCA, and R. A. OVERMEEREN. "NUMERICAL MODELLING OF STANDARD AND CONTINUOUS VERTICAL ELECTRICAL SOUNDINGS1." Geophysical Prospecting 38, no. 7 (October 1990): 705–18. http://dx.doi.org/10.1111/j.1365-2478.1990.tb01870.x.

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El Makrini, Said, Mustapha Boualoul, Younes Mamouch, Hassane El Makrini, Abdelhamid Allaoui, Giovanni Randazzo, Allal Roubil, Mohammed El Hafyani, Stefania Lanza, and Anselme Muzirafuti. "Vertical Electrical Sounding (VES) Technique to Map Potential Aquifers of the Guigou Plain (Middle Atlas, Morocco): Hydrogeological Implications." Applied Sciences 12, no. 24 (December 14, 2022): 12829. http://dx.doi.org/10.3390/app122412829.

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Vertical electrical sounding (VES) as a geoelectrical method has proven its effectiveness throughout the history of groundwater geophysical investigation. In this sense, VES was carried out 47 in the study area with the aim of determining the geometry and limits of Quaternary basaltic aquifer formations and, above all, the location of electrical discontinuities in the area located in the north of Morocco, between the center of Almis Guigou and the city of Timahdite. This area is experiencing an overexploitation of the groundwater due to excessive pumping and the development of intensive agriculture activities, resulting in a continuous decrease in piezometric levels. The processing of the diagrams by WINSEV software showed the presence of an electrically resistant surface level, attributed to basaltic formations, of the Quaternary age, whose thicknesses reach at least 150 m to the SW of the area. This level is superimposed on a moderately conductive horizon which, according to local geology, corresponds to Pliocene marl and limestone alternations. The correlation of VES interpretation models allowed us to elaborate thematic maps and geoelectrical sections which illustrate the vertical and lateral extension of the basaltic reservoir as well as its thickness, which decreases in general from the south-west to the north-east; however, the main electrical discontinuities also correspond to faults and fractures, and they show a NE–SW direction sub-parallel to the major accidents of the Middle Atlas. A prospectivity map of the local aquifer was generated, coinciding with regional fault lines and confirmed by the alignment of very good flowing water boreholes. This geophysical study by electrical sounding shed light on the geometry and extension of the aquifer and opened avenues to draw further conclusions on its physical and hydrodynamic characteristics, as well as to optimize the future siting of groundwater exploitation boreholes through the elaboration of the local aquifer prospectivity map.
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Riss, Joëlle, Juan Luis Fernández-Martínez, Colette Sirieix, Ouassima Harmouzi, Antoine Marache, and Ali Essahlaoui. "A methodology for converting traditional vertical electrical soundings into 2D resistivity models: Application to the Saïss basin, Morocco." GEOPHYSICS 76, no. 6 (November 2011): B225—B236. http://dx.doi.org/10.1190/geo2010-0080.1.

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We demonstrated a simple methodology for the reinterpretation of sets of electrical vertical soundings and the production of 2D resistivity models. The method is applied to the northern central part of the subsiding Saïss basin (Morocco) where a series of vertical electrical soundings (VES) were acquired in 1982 and 1984, using the Schlumberger array with current electrodes semispacings between 3 and 3000 m. We describe a methodology used to estimate and sample apparent resistivities collected from traditional single soundings acquired by using a Schlumberger configuration. We then construct a resistivity pseudosection in a format compatible with a Wenner-Schlumberger array to perform 2D electrical tomography. The methodology takes into account the lateral and vertical spatial correlations shown by the apparent resistivities. The tomographic inversions are performed using a commercial inversion software commonly used in industry. Geostatistical tools are used to quantify the spatial correlation between apparent resistivity data. The result is a series of estimated pseudosections that are inverted to produce 2D resistivity models of the basin along geophysical profiles. We focus our attention on one of these profiles (i.e., one 2D resistivity model). The inverted geoelectrical model allows us to propose a geologic model of the basin. Our methodology allows historical and current data carried out using the Schlumberger configuration, to be rapidly reinterpreted in countries where only low-cost methods, such as VES soundings, can be used due to technology and economic constraints. It can also be applied to cases where continuous or pulled-array continuous vertical soundings method, where a tail of electrodes is towed behind a small vehicle while continuously and simultaneously measuring several electrode configurations, is inoperative due to field conditions (survey length, deep layers, and local environmental conditions).
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Chongo, M., J. Wibroe, K. Staal-Thomsen, M. Moses, I. A. Nyambe, F. Larsen, and P. Bauer-Gottwein. "The use of Time Domain Electromagnetic method and Continuous Vertical Electrical Sounding to map groundwater salinity in the Barotse sub-basin, Zambia." Physics and Chemistry of the Earth, Parts A/B/C 36, no. 14-15 (2011): 798–805. http://dx.doi.org/10.1016/j.pce.2011.07.044.

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Sambuelli, Luigi, Adriano Fiorucci, Paolo Dabove, Ivan Pascal, Chiara Colombero, and Cesare Comina. "Case history: A 5 km long waterborne geophysical survey along the Po river within the city of Turin (northwest Italy)." GEOPHYSICS 82, no. 6 (November 1, 2017): B189—B199. http://dx.doi.org/10.1190/geo2017-0071.1.

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The geologic investigation of water-covered areas is often difficult and inefficient with only the use of traditional surveying techniques (i.e., local drilling and sampling). Waterborne geophysical surveys can offer a valuable alternative to achieve adequate data coverage in a cost-effective way. Two geophysical waterborne methods were combined in this study for the delineation of the submerged subsurface geology along a 5 km stretch of the Po river, within the urban area of Turin. The adopted methods were: continuous vertical electrical sounding (CVES) and ground-penetrating radar (GPR). Special attention was devoted to the accurate geo-referencing of both surveys for combined interpretation. GPR results provide a high-quality representation of the river bed forms, with identification of clear sand dunes in the finer alluvial sediments. CVES resistivity sections enable a deeper characterization, identifying the interface between the shallow alluvial deposits and the deeper low-resistivity marls of the Turin-Hill succession. Our work strengthens the effectiveness of waterborne surveys for geologic prospecting of water-covered and difficult-to-access areas.
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Saraev, Alexander K., Arseny A. Shlykov, and Nikita Yu Bobrov. "Tensor CSRMT System with Horizontal Electrical Dipole Sources and Prospects of Its Application in Arctic Permafrost Regions." Eng 4, no. 1 (February 9, 2023): 569–80. http://dx.doi.org/10.3390/eng4010034.

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When studying horizontally-inhomogeneous media, it is necessary to apply tensor modifications of electromagnetic soundings. Use of tensor measurements is of particular relevance in near-surface electrical prospecting because the upper part of the geological section is usually more heterogeneous than the deep strata. In the Enviro-MT system designed for the controlled-source radiomagnetotelluric (CSRMT) sounding method, two mutually perpendicular horizontal magnetic dipoles (two vertical loops) are used for tensor measurements. We propose a variant of the CSRMT method with two horizontal electrical dipole sources (two transmitter lines). The advantage of such sources is an extended frequency range of 1–1000 kHz in comparison with 1–12 kHz of the Enviro-MT system, greater operational distance (up to 3–4 km compared to 600–800 m), and the ability to measure the signal at the fundamental frequency and its subharmonics. To implement tensor measurements with the equipment of the CSRMT method described in the paper, a technique of creating a time-varying polarization of the electromagnetic field (rotating field) has been developed based on the use of two transmitters with slightly different current frequencies and two mutually-perpendicular transmitter lines grounded at the ends. In this way, we made it possible to change the direction of the electrical and magnetic field polarization continuously. This approach allows realization of the technique of tensor measurements using the new modification of the CSRMT method. In permafrost areas, the hydrogenic taliks are widespread. These local objects are important in the context of study of environmental changes in the Arctic and can be successfully explored by the tensor CSRMT method. For the numerical modeling, a 2D model of the talik was used. Results of the interpretation of synthetic data showed the advantage of bimodal inversion using CSRMT curves of both TM and TE modes compared to separate inversion of TM and TE curves. These new data demonstrate the prospects of the tensor CSRMT method in the study of permafrost regions. The problems that can be solved using the CSRMT method in the Arctic permafrost regions are discussed.
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Auken, Esben, and Anders Vest Christiansen. "Layered and laterally constrained 2D inversion of resistivity data." GEOPHYSICS 69, no. 3 (May 2004): 752–61. http://dx.doi.org/10.1190/1.1759461.

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In a sedimentary environment, quasi‐layered models often can represent the actual geology more accurately than smooth minimum‐structure models. We present a 2D inversion scheme with lateral constraints and sharp boundaries (LCI) for continuous resistivity data. All data and models are inverted as one system, producing layered solutions with laterally smooth transitions. The models are regularized through lateral constraints that tie interface depths or thicknesses and resistivities of adjacent layers. A priori information, used to resolve ambiguities and to add, for example, geological information, can be added at any point of the profile and migrates through the lateral constraints to parameters at adjacent sites. Similarly, information from areas with well‐resolved parameters migrates through the constraints to help resolve areas with poorly constrained parameters. The estimated model is complemented by a full sensitivity analysis of the model parameters supporting quantitative evaluation of the inversion result. A simple synthetic model proves the need for a quasi‐layered, 2D inversion when compared with a traditional 2D minimum‐structure inversion. A 2D minimum‐structure inversion produces models with spatially smooth resistivity transitions, making identification of layer boundaries difficult. A continuous vertical electrical sounding field example from Sweden with a depression in the depth to bedrock supports the conclusions drawn from the synthetic example. A till layer on top of the bedrock, hidden in the traditional inversion result, is identified using the 2D LCI scheme. Furthermore, the depth to the bedrock surface is easily identified for most of the profile with the 2D LCI model, which is not the case with the model from the traditional minimum‐structure inversion.
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Dissertations / Theses on the topic "Continuous Vertical Electrical Sounding"

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Meshinchi-Asl, Mirsattar. "An experimental and theoretical investigation of vertical electrical sounding (VES) techniques." Thesis, University of Newcastle Upon Tyne, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308031.

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Jegen, Marion D. "Electrical properties of the mantle upwelling zone beneath a mid-ocean ridge, an application of vertical gradient sounding." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ27967.pdf.

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Nygren, Anton, Edvard Nordenskjöld, and Erik Östblom. "Groundwater occurrence and quality in Bulawayo province, Zimbabwe." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-300718.

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This study focused on determining the groundwater flow paths in the crystalline subsurface rocks of the Bulawayo metropolitan, Zimbabwe, through analysing the discontinuities of the electrical properties of the ground, as well as in the magnetic field of the underlying rocks. Further, borehole water quality was analysed by measuring and mapping several chemical parameters, specifically TDS, salinity and the electrical conductivity. The electrical and magnetic anomalies were measured at two field sites within the Bulawayo province, the Harry Allen Golf Course and the Barbour Fields dumpsite, while 120 boreholes were sampled for water quality in a large part the province. Two magnetometers were used to measure the magnetic field and the time and location of the measurements, which resulted, after processing in SURFER, into the magnetic field map of these areas. This was used, in conjunction with the geologic map of the Bulawayo province, in order to determine useful locations for the electrical resistivity surveys. These included electrical resistivity tomography and vertical electrical sounding and were performed with an earth resistivity/induced polarization (IP) meter in order to measure the electrical resistivity of the ground. Inverse modelling was used in the RES2DINV software program to produce the topographic image of resistivity. The results for the borehole sampling showed that the maps for the three chemical parameters were very similar, with the western and northern parts of the mapped area displaying higher concentration values. The results of the electrical resistivity surveying showed probable areas of groundwater flow with its relationship to electric conductivity.
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Schettini, Lucas. "Avaliação de aspectos geológicos e geotécnicos na implantação do aterro sanitário de São Carlos - SP, com o auxílio da geofísica." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/18/18132/tde-28112016-094354/.

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A caracterização geológica e geotécnica dos locais de implantação de aterros sanitários é fundamental, tanto para fornecer subsídios adequados ao projeto de instalação das células de deposição dos resíduos sólidos urbanos (RSU), quanto para que se conheçam as características da área antes de ser modificada pela obra. Neste sentido, o presente trabalho visou mostrar a contribuição que a geofísica, com o uso da técnica da eletrorresistividade e do potencial espontâneo, associado a informações de investigação geotécnica direta pode dar para o estabelecimento de um background da área de instalação do aterro sanitário da cidade de São Carlos-SP. Foram realizados 7 caminhamentos elétricos (CE) com o arranjo dipolo-dipolo com eletrodos espaçados de 10 metros e três sondagens elétricas verticais (SEV), utilizando o arranjo Schlumberger, com profundidade de investigação de até 100 metros. Para processamento dos modelos bidimensionais dos CE utilizou-se o programa RES2DINV, e enquanto que para as SEV foi utilizado o modelo unidimensional. A interpretação dos modelos geoelétricos foi aperfeiçoada pela confrontação com informações geológico-geotécnicas prévias da área, obtidas nos estudos de impacto ambiental (EIA/RIMA) e resultados de sondagens de simples reconhecimento (SPT), realizadas na fase de estudo para implantação do aterro sanitário. Com isso foi possível definir com clareza a profundidade do topo rochoso e das zonas de maior umidade nos CE e SEV. O conjunto de seções de CE foi georeferenciada com o auxílio de GPS de precisão, o que permitiu o tratamento espacial das informações e o estabelecimento dos mapas da superfície do topo rochoso, das zonas de fluxo de água subterrânea e da espessura dos materiais inconsolidados. O conjunto de informações obtido permitiu identificar locais possíveis para a instalação futura de poços de monitoramento, assim como os dados geoelétricos das várias camadas servirá como padrão para identificar eventuais contaminações do solo ou da água subterrânea no futuro. A identificação da presença do topo rochoso em pequena profundidade, em algumas áreas do aterro, permite o melhor planejamento das escavações para instalação das células de deposição do RSU.
The geological and geotechnical characterization of landfill implantation areas is crucial; even to provide appropriate subsidies of urban solid residues (USR) installation project of deposition cells and for knowing the characteristics of the area before being modified by the work. In this sense, the present work aimed to show the contribution that the geophysics, with the use of electrical resistivity technique and the spontaneous potential, associated with direct geotechnical investigation information can give to the establishment of a background of landfill installation area from São Carlos-SP city. Were performed 7 electrical imaging (EI) with the dipole-dipole array with electrodes spaced by 10 meters and three vertical electrical sounding (VES), using the Schlumberger array with depth research up to 100 meters. For processing of two-dimensional models of the EI was used the RES2DINV program and while for the vertical electrical sounding (VES)-was used one-dimensional model. Interpretation of geoelectric models was enhanced by the confrontation with geological and geotechnical information of prior area, obtained in the environmental impact assessment (EIA) and results of a simple reconnaissance probes, performed in the study phase for the landfill implementation. It was possible to clearly define the depth of the bedrock and the higher humidity areas in the EI and VES. The set of sections electrical Imaging (EI) was georeferenced with the aid of GPS accuracy that allowed the spatial treatment of Information and the setting maps of the bedrock surface, the groundwater flow zones and the thickness of the unconsolidated materials. The obtained set of information enabling identification of possible locations for the wells future monitoring installation, as well as the geoelectrical data from several layers will be use as a standard to identify possible contamination of the soil or groundwater in the future. The identification of bedrock presence in small depth, in some areas of landfill, allows better planning of excavation for installation of MSW deposition cells.
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Руденко, Сергій Сергійович. "Вдосконалення методів контролю та діагностики заземлювальних пристроїв діючих високовольтних енергооб'єктів України." Thesis, НТУ "ХПІ", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/34461.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.09.13 – техніка сильних електричних та магнітних полів. Національний технічний університет "Харківський політехнічний інститут", Харків, 2018. Дисертація присвячена вдосконаленню існуючих методів визначення нормованих параметрів на кожному з етапів електромагнітної діагностики, а також створення якісно нового підходу до видачі рекомендацій з реконструкції заземлювального пристрою для підвищення безпеки експлуатації діючих енергооб'єктів. На основі статистичного аналізу електрофізичних характеристик ґрунту створено вимоги до технічних характеристик приладів для вертикального електричного зондування при проведенні електромагнітної діагностики стану заземлювального пристрою. Розроблено та реалізовано у вигляді програмного комплексу математичну модель нееквіпотенційного заземлювального пристрою довільної конфігурації, розташованого у тришаровому ґрунті. Удосконалено математичну модель для інтерпретації результатів вертикального електричного зондування для багатошарових геоелектричних структур та методику еквівалентування з приведенням їх до вигляду розрахункових моделей. Перевірено адекватність розроблених математичних моделей експериментальним вимірам на понад 70 діючих високовольтних енергооб'єктах України класами напруги 35–150 кВ. Доведено, що реконструкція заземлювального пристрою за вимогами до напруги дотику є найбільш ефективною з точки зору електробезпеки та матеріальних витрат. Створено параметричну модель, яка дозволяє прогнозувати ймовірні матеріально-технічні витрати на реконструкцію.
Thesis for granting Candidate of Technical sciences Degree in specialty 05.09.13 – Technics of Strong Electric and Magnetic Fields. – National Technical University "Kharkiv Polytechnic Institute", 2018. The thesis is devoted to the improvement of existing methods of determination of normalized parameters at each of the stages of electromagnetic diagnostics, as well as the creation of a qualitatively new approach to the issuance of recommendations for reconstruction a grounding grids to improve the safety of personnels on energy objects of Ukraine. The statistic of soil electrical properties to evaluate the optimal technical requirements for equipment for vertical electrical soil sounding when performing diagnostics of grounding systems is used. The model of the grounding device was based on the solution of the problem about the electrical field potential of the point current source, located in a three-layer soil. This model allows to determine the field potential at any point in case of the location of the grounding device in any of the layers of soil. Mathematical model and computer program for analyzing and interpreting results of the soil sounding by Wenner configuration was created on the base of the analytical solution for field of current point source located in four-, three- or two-layer structure. The method of equivalenting with bringing the multilayer soil to the form of the calculated models was improved. The adequacy of developed mathematical models for experimental measurements on more than 70 existing high-voltage power facility’s of Ukraine with voltage classes 35-150 kV has been checked. It was proved that the reconstruction of grounding system for requirements of touch voltage both in terms of electrical safety and in terms of material and labor costs is more effectiveness. The parametric model that allows predicting the probable material and technical costs for the reconstruction was created.
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Руденко, Сергій Сергійович. "Вдосконалення методів контролю та діагностики заземлювальних пристроїв діючих високовольтних енергооб'єктів України." Thesis, НТУ "ХПІ", 2017. http://repository.kpi.kharkov.ua/handle/KhPI-Press/34463.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.09.13 – техніка сильних електричних та магнітних полів. Національний технічний університет "Харківський політехнічний інститут", Харків, 2018. Дисертація присвячена вдосконаленню існуючих методів визначення нормованих параметрів на кожному з етапів електромагнітної діагностики, а також створення якісно нового підходу до видачі рекомендацій з реконструкції заземлювального пристрою для підвищення безпеки експлуатації діючих енергооб'єктів. На основі статистичного аналізу електрофізичних характеристик ґрунту створено вимоги до технічних характеристик приладів для вертикального електричного зондування при проведенні електромагнітної діагностики стану заземлювального пристрою. Розроблено та реалізовано у вигляді програмного комплексу математичну модель нееквіпотенційного заземлювального пристрою довільної конфігурації, розташованого у тришаровому ґрунті. Удосконалено математичну модель для інтерпретації результатів вертикального електричного зондування для багатошарових геоелектричних структур та методику еквівалентування з приведенням їх до вигляду розрахункових моделей. Перевірено адекватність розроблених математичних моделей експериментальним вимірам на понад 70 діючих високовольтних енергооб'єктах України класами напруги 35–150 кВ. Доведено, що реконструкція заземлювального пристрою за вимогами до напруги дотику є найбільш ефективною з точки зору електробезпеки та матеріальних витрат. Створено параметричну модель, яка дозволяє прогнозувати ймовірні матеріально-технічні витрати на реконструкцію.
Thesis for granting Candidate of Technical sciences Degree in specialty 05.09.13 – Technics of Strong Electric and Magnetic Fields. – National Technical University "Kharkiv Polytechnic Institute", 2018. The thesis is devoted to the improvement of existing methods of determination of normalized parameters at each of the stages of electromagnetic diagnostics, as well as the creation of a qualitatively new approach to the issuance of recommendations for reconstruction a grounding grids to improve the safety of personnels on energy objects of Ukraine. The statistic of soil electrical properties to evaluate the optimal technical requirements for equipment for vertical electrical soil sounding when performing diagnostics of grounding systems is used. The model of the grounding device was based on the solution of the problem about the electrical field potential of the point current source, located in a three-layer soil. This model allows to determine the field potential at any point in case of the location of the grounding device in any of the layers of soil. Mathematical model and computer program for analyzing and interpreting results of the soil sounding by Wenner configuration was created on the base of the analytical solution for field of current point source located in four-, three- or two-layer structure. The method of equivalenting with bringing the multilayer soil to the form of the calculated models was improved. The adequacy of developed mathematical models for experimental measurements on more than 70 existing high-voltage power facility’s of Ukraine with voltage classes 35-150 kV has been checked. It was proved that the reconstruction of grounding system for requirements of touch voltage both in terms of electrical safety and in terms of material and labor costs is more effectiveness. The parametric model that allows predicting the probable material and technical costs for the reconstruction was created.
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Books on the topic "Continuous Vertical Electrical Sounding"

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Kevi, L. Vertical electrical-sounding interpretation using the Tektronix 4054 graphic system. Perth: [Geological Survey of Western Australia], 1986.

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Book chapters on the topic "Continuous Vertical Electrical Sounding"

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Yang, Feng, Guangwen Li, Qiuling Jia, Weijie Cai, and Shaobo Zhai. "Dynamic Generation Strategy for the 4D Continuous Descent Approach Vertical Profile." In Lecture Notes in Electrical Engineering, 4804–15. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-6613-2_466.

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Gorza, Candela, Claudio Lexow, Juan F. Ponce, Andrea Coronato, Ramiro López, and María Laura Villarreal. "Vertical Electrical Sounding Applied to Hydrolithological Interpretations in the Fuegian Steppe, Argentina." In Environmental Assessment of Patagonia's Water Resources, 261–74. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-89676-8_12.

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Jalem, Kiran. "Geohydrological Investigation Using Vertical Electrical Sounding At Chinamushidiwada Village in Visakhapatnam, Andhra Pradesh, India." In Wastewater Reuse and Watershed Management, 287–302. Includes bibliographical references and index.: Apple Academic Press, 2019. http://dx.doi.org/10.1201/9780429433986-25.

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Karakilcik, Hatice. "Determination of Geothermal Fields at Kızılcahamam (Ankara) Using Vertical Electrical Sounding (VES) and Spontaneous Potential (SP) Methods." In Progress in Clean Energy, Volume 2, 301–12. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-17031-2_22.

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Virupaksha, H. S. "Assessment of Hydraulic and Geoelectric Parameters of the Aquifers and Their Relationship Using Vertical Electrical Sounding in Gurpur Watershed, West Coast of India." In Groundwater and Water Quality, 161–78. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-09551-1_12.

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Aydin, Ali, Erdal Akyol, Mahmud Gungor, Ali Kaya, and Suat Tasdelen. "Geophysical Surveys in Engineering Geology Investigations With Field Examples." In Advances in Civil and Industrial Engineering, 257–80. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-2709-1.ch007.

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This chapter focusses on geophysical survey techniques, employed in engineering geological investigations and it includes case studies. Goal of a geophysical study in an engineering geological research is to display discontinuities in the rock masses, physico-mechanical properties of soils and rocks, groundwater exploration, faults, landslides, etc. It is also helpful to learn type and thickness of soil, layer inclination. These techniques include engineering geological surface mapping, geotechnical drilling and in situ testing.Then the obtained geophysical field data are analyzed and interpreted in conjunction with the results of geological information.The most common geophysical methods namely seismic, magnetometric, vertical electrical sounding (VES), Very Low Frequency (VLF) Electromagnetics methods, ground penetration radar (GPR) provide sufficient information about the subsurface although they have their limitations, setting up the minimum tests requirements in relation to the type of the geological formations.
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López Loera, Héctor. "The Magnetometry—A Primary Tool in the Prospection of Underground Water." In Magnetometers - Fundamentals and Applications of Magnetism. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.84322.

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One of the most important problems in arid and semi-arid zones in the Mexican Mesa Central is the one related to the exploration and exploitation of groundwater. It is found at depths over 200 m, and movement is primarily through fractures. This work presents a geophysical methodology, which shows the potential of combining natural and induced methods to locate confined aquifers in fault zones. The study begins by interpreting the aeromagnetic survey, mainly by searching alignments associated with low magnetic anomalies, which are correlated with faults zones, and/or fractures and/or geologic contacts where ferromagnetic minerals have undergone oxidation due to their association with recharged zones. These aeromagnetic alignments are confirmed on land by a ground magnetic survey. Based on these interpretations, electrical methods include sections and vertical electrical sounding are used to verify if the zones are correlated to the underground moisture. If both permeability and moisture are met together, then they considered as zones with a high probability of locating ground water in the Mexican Mesa Central.
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Conference papers on the topic "Continuous Vertical Electrical Sounding"

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I. Sorensen, K., and F. Effers. "Vertical Electrical Sounding - a Continuous Approach." In 1st EEGS Meeting. European Association of Geoscientists & Engineers, 1995. http://dx.doi.org/10.3997/2214-4609.201407506.

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B. Christensen, Niels, and Kurt Sørensen. "Pulled Array Continuous Vertical Electrical Sounding (Pa-Cites) With An Additional Inductive Source." In 9th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems. European Association of Geoscientists & Engineers, 1996. http://dx.doi.org/10.3997/2214-4609-pdb.205.1996_001.

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Christensen, Niels B., and Kurt Sørensen. "Pulled Array Continuous Vertical Electrical Sounding (PA‐CVES) with an Additional Inductive Source." In Symposium on the Application of Geophysics to Engineering and Environmental Problems 1996. Environment and Engineering Geophysical Society, 1996. http://dx.doi.org/10.4133/1.2922272.

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Wysowska-Swiebodzinska, A., S. Bialek, and M. Kondracka. "Recognizing the Permafrost by Vertical Electrical Sounding." In Near Surface 2008 - 14th EAGE European Meeting of Environmental and Engineering Geophysics. European Association of Geoscientists & Engineers, 2008. http://dx.doi.org/10.3997/2214-4609.20146301.

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Sørensen, K. I., and K. M. Sørensen. "Pulled Array Continuous Electrical Sounding Pa - Cves." In 8th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems. European Association of Geoscientists & Engineers, 1995. http://dx.doi.org/10.3997/2214-4609-pdb.206.1995_093.

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Sørensen, K. I., and K. M. Sørensen. "Pulled Array Continuous Electrical Sounding PA ‐ CVES." In Symposium on the Application of Geophysics to Engineering and Environmental Problems 1995. Environment and Engineering Geophysical Society, 1995. http://dx.doi.org/10.4133/1.2922218.

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Podlesny, A. V., V. I. Kurkin, A. V. Medvedev, and K. G. Ratovsky. "Vertical ionosphere sounding using continuous signals with linear frequency modulation." In 2011 XXXth URSI General Assembly and Scientific Symposium. IEEE, 2011. http://dx.doi.org/10.1109/ursigass.2011.6051145.

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Mamud, Md Lal, Robert M. Holt, Robert M. Holt, Craig J. Hickey, Craig J. Hickey, Gregg Davidson, Gregg Davidson, et al. "GROUNDWATER AQUIFER DELINEATION USING ELECTRICAL RESISTIVITY TOMOGRAPHY AND VERTICAL ELECTRICAL SOUNDING." In GSA Connects 2022 meeting in Denver, Colorado. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022am-382664.

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Pous, J., and P. Queralt. "Model curves for vertical electrical sounding over 2D structures." In 53rd EAEG Meeting. European Association of Geoscientists & Engineers, 1991. http://dx.doi.org/10.3997/2214-4609.201410977.

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Golovko, Larisa, Antonina Pozdnyakova, and Anatoly Pozdnyakov. "A Vertical Electrical Sounding Method for Agricultural Soil Survey." In Symposium on the Application of Geophysics to Engineering and Environmental Problems 2011. Environment and Engineering Geophysical Society, 2011. http://dx.doi.org/10.4133/1.3614296.

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