Detecting and monitoring of water inrush in tunnels and ...
2015-8-1 DC resistivity method is one of the important geophysical methods, which is interpreted based on conductivity difference between rock and water. In recent years, this method is widely used for detection and real-time monitoring of water-bearing structures in tunnels and coal mines. 2.1.
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Detection of Abandoned Underground Coal Mines by ...
On the other hand, geophysical techniques potentially offer an economical alternative means of detecting and delineating these mined areas and the avenues of water movement. Geophysical methods have been applied to similar detection problems in recent years.
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SURFACE GEOPHYSICAL METHODS FOR DETECTION OF
2010-3-30 the electrical resistance. Mine voids in coal mines are usually encountered as resistiv-ity lows because of the presence of acidic mine water. Other Methods, such as magnetics and ground penetrating radar have been used for detecting subsurface cavities, but can be subject to precision, interference, or depth
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A Review of Geophysical Exploration Technology for Mine ...
2017-6-12 Geophysical exploration can be effective in detecting and monitoring potential sources of coal mine water in-rushes and underground watercourses. Generally, in-mine seismic, DC resistivity, and transient electromagnetic methods are used for such purposes in China.
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Synergetic System for Water Body Detection in Coal Mine: A ...
2019-8-23 Detection of water yield property is one of the most important tasks for mine water control. Because of low reliability of a single water detection method, it is necessary to find an effective water detection system. In this study, we established a circulatory system for water detection (CSWD) and analyzed working principles of each module of the system. The system was then tested in a China ...
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Overview on the application of geophysics in coal mining ...
Since their introduction to the coal mining industries of the United Kingdom and West Germany in the 1970s, geophysical methods are now utilised in coal mining around the world. The range of applications in both surface and underground mining is extensive. Applications include coal seam mapping and geological fault detection, lithological ...
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Overview on the application of geophysics in coal mining ...
2013-7-30 Since their introduction to the coal mining industries of the United Kingdom and West Germany in the 1970s, geophysical methods are now utilised in coal mining around the world. The range of applications in both surface and underground mining is extensive. Applications include coal seam mapping and geological fault detection, lithological ...
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Overview on the application of geophysics in coal mining ...
2013-7-1 Geophysical logging reflects the physical and chemical properties of coal through the characteristics of acoustical, electrical, radioactive detections [2,8,9]. The geophysical logs of coals show...
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Quantitative Prediction of Water Volumes Within a Coal ...
2016-3-19 Mine water and mine inflow water are closely linked to the risk of mine water disasters. The relationships between various geophysical parameters and the volume of water in mine tunnels were considered by using an integrated suite of appropriate geophysical methods [i.e. direct current (DC) resistivity, transient electromagnetic method (TEM), and the seismic scattered wave method], and ...
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Detection and delineation of coal mine fire in Jharia coal ...
2019-4-9 Coal mine fire is a serious problem in Jharia coal field, India. The coal mine fire can be detected with different techniques such as borehole temperature measurement, thermo-compositional analysis, remote sensing techniques, thermo-graphic measurement and geophysical methods.
MoreStudy on the application of comprehensive geophysical ...
2021-2-1 Study on the application of comprehensive geophysical prospecting technology for the goaf detection in coal mine. Fengge Chen 1, ... Liu G, Yang M and Wang Y 2019 Application of high density resistivity method for water accumulated goaf detection in coal mine Mining Safety and Environmental Protection 46 90-94.
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Water Detection within the Working Face of an Underground ...
2019-9-19 Controlling water in underground coal mines is an important safety consideration. There are very few methods that can detect or map water remotely within the working face of a mine. The two-dimensional (2D) electrical resistivity tomography (ERT) method is sufficient for detecting water directly above the roof and below the floor, but it fails ...
MoreT C M Application of Geophysical Technique in the Coal
the tunnel in the coal mining. As well known, water in-rush in the tunnel of the coal mining are the main coal potential disaster source which causes the considerable economic losses and casualties. Hence, advanced pro-specting for the disaster water are very necessary. Due to the environment of
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Detection of Water-Filled Mining Goaf Using Mining ...
Water-filled mining goaves are extremely prone to water inrush accidents in coal mines, and the transient electromagnetic method (TEM) is a good geophysical method for detecting water-rich areas. Considering that conventional TEM was mainly carried out on the ground, to increase the detection resolution, the underground TEM was used to detect ...
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Experimental study on comprehensive geophysical advanced ...
To ensure safe mining practices and to avoid the intrusion of water from the bases of coal deposits, the detection of the mined-out areas, especially the water-filled mined-out area in advanced ...
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Effect of Application of Transient Electromagnetic Method ...
2021-3-11 In water control in coal mines, the effect of TEM application is evident in geophysical exploration of mining districts in coal mines, detection of water passages inducing flooding of mine from water-accumulating abandoned mines, high precision detection of water inrushing structures inducing flooding
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The application of geophysics in South African coal
2014-12-9 geophysics to solving a range of coal mining and exploration problems is highlighted. Keywords geophysics, coal, old workings, dykes, sills, faults. * CSIR, Natural Resources and the Environment, Pretoria, South Africa. † Environmental Water and Geological Sciences Department, Faculty of Science, Tshwane Univerisity of Technology , Pretoria ...
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Seismic Detection Of Abandoned Coal Mine Workings U.S ...
Seismic Detection Of Abandoned Coal Mine Workings T.L. Dobecki; T.L. Dobecki Department of Geophysics, Colorado School of Mines. Search for other works by this author on: This Site. Google Scholar.
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Detection of Abandoned Coal Mine Goaf in China’s Ordos ...
2020-9-28 Early coal mining and management methods left a large number of unknown goafs in China’s important Ordos Basin, which has restricted the safe production in today’s large-scale mines. The transient electromagnetic (TEM) method is the main geophysical tool used to detect the goaf. We considered the geological conditions of Ordos Basin in studying the optimal working parameters ...
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Electrical resistivity of coal-bearing rocks under high ...
2015-12-31 At present, most commonly used geophysical methods in the detection of coal fires are the magnetic method and the self-potential method due to their low cost and high efficiency. These two methods have been used to delineate many coal fires in China (Zhang 2004; Shao et al. 2014).
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Keys to Successfully Using Geophysics to Detect Mine
2019-1-23 Keys to Successfully Using Geophysics to Detect Mine Voids and Covered Sinkholes Geotechnical, Geophysical, Geoenvironmental ... water, on ice, from the air, and in boreholes. ... Geophysical Imaging of an Underground Coal Mine Geophysical Imaging of a Karst Sinkhole and Void Beneath Airport Runway.
MoreWater Detection within the Working Face of an Underground ...
2019-9-19 Controlling water in underground coal mines is an important safety consideration. There are very few methods that can detect or map water remotely within the working face of a mine. The two-dimensional (2D) electrical resistivity tomography (ERT) method is sufficient for detecting water directly above the roof and below the floor, but it fails ...
MoreDetection of Water-Filled Mining Goaf Using Mining ...
Water-filled mining goaves are extremely prone to water inrush accidents in coal mines, and the transient electromagnetic method (TEM) is a good geophysical method for detecting water-rich areas. Considering that conventional TEM was mainly carried out on the ground, to increase the detection resolution, the underground TEM was used to detect ...
MoreThe application of geophysics in South African coal
2014-12-9 geophysics to solving a range of coal mining and exploration problems is highlighted. Keywords geophysics, coal, old workings, dykes, sills, faults. * CSIR, Natural Resources and the Environment, Pretoria, South Africa. † Environmental Water and Geological Sciences Department, Faculty of Science, Tshwane Univerisity of Technology , Pretoria ...
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Geophysical Detection of Outbursts Outburst ...
Geophysical detection of outbursts. Geophysical techniques provide the opportunity for remote assessment of the state of a rock mass and to remotely monitor changes in its behaviour. Geophysical techniques are widely used for these purposes in resource exploration and extraction. Because coal
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Detection of Coal Mines Using Apparent Conductivity Use ...
Detection of Coal Mines Using Apparent Conductivity ... case study describes the use of apparent conductivity surveys to determine the location and extent of voids created by coal mining in the shallow subsurface. The use of apparent conductivity was undertaken as part of the construction of a
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Tracing Groundwater Flow Paths in a Coal Mine by Means
2014-8-21 An Interdisciplinary Response to Mine Water Challenges - Sui, Sun Wang (eds) ©2014 China University of Mining and Technology Press, Xuzhou, ISBN 978-7-5646-2437-8 349 Tracing Groundwater Flow Paths in Coal Mine by Means of Geophysical and Borehole Flow Data J. Busse A. Scheuermann1, D. Bringemeier2, L. Li3
MoreSeismic Detection Of Abandoned Coal Mine Workings U.S ...
Seismic Detection Of Abandoned Coal Mine Workings T.L. Dobecki; T.L. Dobecki Department of Geophysics, Colorado School of Mines. Search for other works by this author on: This Site. Google Scholar.
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Characteristic of geological anomaly detected by
2017-1-22 The 6th International Conference on Mining Science Technology Characteristic of geological anomaly detected by combined geophysical methods in a deep laneway of coal mine Liu Sheng-donga*，Zhang Ping-songb, Cao Yuc, Wang Boa aState Key laboratory of deep geomechanics underground engineering, School of Resource and Earth Science, China University of Mining and
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Geophysical Investigation of the T and T Mine Complex ...
2004-9-2 Traditionally, airborne geophysical surveys have been used for the detection of conductive ore bodies and geologic mapping. However, in recent years, studies have demonstrated the effectiveness of airborne geophysics and remote sensing for environmental purposes. King and Hynes (1994) used geophysical methods to monitor acid mine drainage at
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