Application of electrical resistivity imaging to detection of hidden geological structures in a single roadway

Locating concealed geological structures in coal seams on both sides of a coal mine excavation roadway is of vital importance for safe production. Conventional electrical resistivity imaging methods mostly arrange observation systems on the roadway roof and floor, so they are inevitably deficient wh...
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Autor*in:	Guo Weihong [verfasserIn] Liu Shucai [verfasserIn] Liu Yaoning [verfasserIn] Chen Shuangshuang [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2020

Schlagwörter:	electrical resistivity imaging method parallel coal seam detection method roadway cavity affect forward calculation

Übergeordnetes Werk:	In: Open Geosciences - De Gruyter, 2015, 12(2020), 1, Seite 1083-1093
Übergeordnetes Werk:	volume:12 ; year:2020 ; number:1 ; pages:1083-1093

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1515/geo-2020-0175

Katalog-ID:	DOAJ055114067

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520			\|a Locating concealed geological structures in coal seams on both sides of a coal mine excavation roadway is of vital importance for safe production. Conventional electrical resistivity imaging methods mostly arrange observation systems on the roadway roof and floor, so they are inevitably deficient when it comes to detecting concealed geological structures in coal seams. According to the electric field distribution characteristics of artificial field sources for electrical resistivity imaging methods and utilizing the shielding of current by roadway cavities, this paper proposes the parallel coal seam detection method that arranges observation systems in coal seams on the roadway side to detect concealed geological structures in coal seams. On the basis of introducing the principles of consequent detection methods, this paper investigates the influence of roadway cavities on observation results and offers a method of correcting the influence of roadway cavities. In view of the geoelectric characteristics of typical concealed geological structures in working faces, this paper establishes numerical models to verify the feasibility of the parallel coal seam detection method. As indicated by the calculation results, the consequent pole–dipole (A-MN) observation system is the most ideal in terms of dividing the geoelectric interfaces of concealed geological structures in working faces, and its detection effect is influenced significantly by the coal seam thickness and the electric differences between surrounding rock and anomalous bodies. Coal seam resistivity slightly influences detection of the consequent pole–dipole system. According to practical application effects, the parallel coal seam detection method can solve the problem of detecting concealed geological structures in “single-roadway” working faces.
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sourceStr	In Open Geosciences 12(2020), 1, Seite 1083-1093 volume:12 year:2020 number:1 pages:1083-1093
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topic_facet	electrical resistivity imaging method parallel coal seam detection method roadway cavity affect forward calculation Geology
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authorswithroles_txt_mv	Guo Weihong @@aut@@ Liu Shucai @@aut@@ Liu Yaoning @@aut@@ Chen Shuangshuang @@aut@@
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callnumber-first	Q - Science
author	Guo Weihong
spellingShingle	Guo Weihong misc QE1-996.5 misc electrical resistivity imaging method misc parallel coal seam detection method misc roadway cavity affect misc forward calculation misc Geology Application of electrical resistivity imaging to detection of hidden geological structures in a single roadway
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topic_title	QE1-996.5 Application of electrical resistivity imaging to detection of hidden geological structures in a single roadway electrical resistivity imaging method parallel coal seam detection method roadway cavity affect forward calculation
topic	misc QE1-996.5 misc electrical resistivity imaging method misc parallel coal seam detection method misc roadway cavity affect misc forward calculation misc Geology
topic_unstemmed	misc QE1-996.5 misc electrical resistivity imaging method misc parallel coal seam detection method misc roadway cavity affect misc forward calculation misc Geology
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title	Application of electrical resistivity imaging to detection of hidden geological structures in a single roadway
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title_full	Application of electrical resistivity imaging to detection of hidden geological structures in a single roadway
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title_sort	application of electrical resistivity imaging to detection of hidden geological structures in a single roadway
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title_auth	Application of electrical resistivity imaging to detection of hidden geological structures in a single roadway
abstract	Locating concealed geological structures in coal seams on both sides of a coal mine excavation roadway is of vital importance for safe production. Conventional electrical resistivity imaging methods mostly arrange observation systems on the roadway roof and floor, so they are inevitably deficient when it comes to detecting concealed geological structures in coal seams. According to the electric field distribution characteristics of artificial field sources for electrical resistivity imaging methods and utilizing the shielding of current by roadway cavities, this paper proposes the parallel coal seam detection method that arranges observation systems in coal seams on the roadway side to detect concealed geological structures in coal seams. On the basis of introducing the principles of consequent detection methods, this paper investigates the influence of roadway cavities on observation results and offers a method of correcting the influence of roadway cavities. In view of the geoelectric characteristics of typical concealed geological structures in working faces, this paper establishes numerical models to verify the feasibility of the parallel coal seam detection method. As indicated by the calculation results, the consequent pole–dipole (A-MN) observation system is the most ideal in terms of dividing the geoelectric interfaces of concealed geological structures in working faces, and its detection effect is influenced significantly by the coal seam thickness and the electric differences between surrounding rock and anomalous bodies. Coal seam resistivity slightly influences detection of the consequent pole–dipole system. According to practical application effects, the parallel coal seam detection method can solve the problem of detecting concealed geological structures in “single-roadway” working faces.
abstractGer	Locating concealed geological structures in coal seams on both sides of a coal mine excavation roadway is of vital importance for safe production. Conventional electrical resistivity imaging methods mostly arrange observation systems on the roadway roof and floor, so they are inevitably deficient when it comes to detecting concealed geological structures in coal seams. According to the electric field distribution characteristics of artificial field sources for electrical resistivity imaging methods and utilizing the shielding of current by roadway cavities, this paper proposes the parallel coal seam detection method that arranges observation systems in coal seams on the roadway side to detect concealed geological structures in coal seams. On the basis of introducing the principles of consequent detection methods, this paper investigates the influence of roadway cavities on observation results and offers a method of correcting the influence of roadway cavities. In view of the geoelectric characteristics of typical concealed geological structures in working faces, this paper establishes numerical models to verify the feasibility of the parallel coal seam detection method. As indicated by the calculation results, the consequent pole–dipole (A-MN) observation system is the most ideal in terms of dividing the geoelectric interfaces of concealed geological structures in working faces, and its detection effect is influenced significantly by the coal seam thickness and the electric differences between surrounding rock and anomalous bodies. Coal seam resistivity slightly influences detection of the consequent pole–dipole system. According to practical application effects, the parallel coal seam detection method can solve the problem of detecting concealed geological structures in “single-roadway” working faces.
abstract_unstemmed	Locating concealed geological structures in coal seams on both sides of a coal mine excavation roadway is of vital importance for safe production. Conventional electrical resistivity imaging methods mostly arrange observation systems on the roadway roof and floor, so they are inevitably deficient when it comes to detecting concealed geological structures in coal seams. According to the electric field distribution characteristics of artificial field sources for electrical resistivity imaging methods and utilizing the shielding of current by roadway cavities, this paper proposes the parallel coal seam detection method that arranges observation systems in coal seams on the roadway side to detect concealed geological structures in coal seams. On the basis of introducing the principles of consequent detection methods, this paper investigates the influence of roadway cavities on observation results and offers a method of correcting the influence of roadway cavities. In view of the geoelectric characteristics of typical concealed geological structures in working faces, this paper establishes numerical models to verify the feasibility of the parallel coal seam detection method. As indicated by the calculation results, the consequent pole–dipole (A-MN) observation system is the most ideal in terms of dividing the geoelectric interfaces of concealed geological structures in working faces, and its detection effect is influenced significantly by the coal seam thickness and the electric differences between surrounding rock and anomalous bodies. Coal seam resistivity slightly influences detection of the consequent pole–dipole system. According to practical application effects, the parallel coal seam detection method can solve the problem of detecting concealed geological structures in “single-roadway” working faces.
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title_short	Application of electrical resistivity imaging to detection of hidden geological structures in a single roadway
url	https://doi.org/10.1515/geo-2020-0175 https://doaj.org/article/fd2d7504ad3d4f21a31956927014995b https://doaj.org/toc/2391-5447
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Application of electrical resistivity imaging to detection of hidden geological structures in a single roadway

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