Results 21 to 30 of about 2,878 (183)
Meikuang Anquan, 2020 Aiming at the instability disaster of coal mine goaf, based on the disaster type and hazard analysis, the present situation and progress of the research on the prevention and control technology of the mine goaf instability hazards in China are ...
WANG Donghao, LI Wen, ZHANG Bin
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Study on Application of Goaf Management and Residual Mining Technology in Niujuan Deposit [PDF]
E3S Web of Conferences, 2020 For goaf group and high grade embedded residual ore in NO.I ore body, the overall technical idea of pre-filling the key goaf, the residual mining and the non-key goaf filling is used.
Feng Pan-xue, Huang Dan
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Application of Comprehensive Geophysical Prospecting Method in Goaf Detection
CT Lilun yu yingyong yanjiu, 2023 To accurately explore distribution of a historical small coal mine goaf in Hami, Xinjiang, integrated application of microtremor and transient electromagnetic is used for goaf exploration researching. This work use different physical properties data into
Su TANG +4 more
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Frontiers in Environmental Science, 2022 Goaf ground collapse has great constraints on people’s lives, property safety, and social development within the influence scope because of its concealment and suddenly happening characteristics. The high-density resistivity method is used to explore the
Xie Jia +3 more
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Meikuang Anquan, 2020 Take Wuhushan Coal Mine 010908 working face as the background, theoretical analysis, numerical simulation and field measurement are used to study the influence of shallow buried depth gas working face gas drainage on goaf spontaneous combustion “three ...
WANG Weidong , WANG Wei, LI Peng, WANG Gang
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Two-Stage Caving Characteristics of Complex Irregular Goaf: A Case Study in China
Advances in Civil Engineering, 2023 Different from the goaf formed by normal mining, the goaf formed by the continuous caving of the lower illegal goafs is extremely irregular and unstable, which leads to the difference in the goaf caving characteristics.
Junyang Zhang +4 more
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STUDY ON SURFACE STABILITY AND RESIDUAL DEFORMATION OF OLD GOAF IN DONGJIAGOU MINE，CHINA
Civil Engineering Journal, 2021 Old goaf under the overpass becomes serious hidden trouble of subgrade-pavement and bridge engineering. Based on geological survey, geophysical survey and theoretical analysis, this paper studies on formation mechanism and distribution characteristics of
Zechuang Li +3 more
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Numerical Simulation on goaf with different vertical distances in high-drainage roadways [PDF]
E3S Web of Conferences, 2020 High drainage roadway horizon parameters not only influence goaf drainage effect, but also have effect on the air leakage field and spontaneous combustion three zones’ distribution in the goaf.
Yang Rili +4 more
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Meitan xuebaoIn order to solve the problems of surface runoff disorder, poor water connectivity, and weak hydrodynamic water circulation capacity in high groundwater level mining areas in the east, and to reduce the non-point source pollution and point source ...
Shaogang LEI +5 more
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Energies, 2023 The fracture field and permeability distribution model of comprehensive working face goaf was integrated upon the theoretical examination to investigate the fracture field distribution law of goaf and gas migration and accumulation characteristics, and ...
Qian Ma +3 more
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