Results 21 to 30 of about 2,676 (167)

Study on Influence of Gas Drainage on Spontaneous Combustion “Three Zones” of Goaf in Shallow Buried Deep and High Gas Working Face

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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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, Yinting WU, Hao XING, Yongshan WEI, Xuan WANG   +4 more
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Application of the high-density resistivity method in detecting a mined-out area of a quarry in Xiangtan City, Hunan Province

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, Liu Yang, Lu Yulong, Zhang Lianzhi   +3 more
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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, Zonghong Zhou, Jing Zhang, Yin Liu, Yang Liu   +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, Peifeng Cheng, Zhibin Liu, Junjie Zheng   +3 more
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Characteristics of Porosity Distribution and Gas Migration in Different Layers of Comprehensive Working Face Goaf

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, Junhua Xue, Yu Shi, Xiangzhen Zeng   +3 more
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Systematic protection and restoration of water bodies in collapse areas based on surface runoff regulation

Meitan xuebao
In 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, Yufan XU, Mian ZHANG, Dongxing CHEN, Xia HUA, Dong GUO   +5 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, Cui Jianbin, Yang Fengfeng, Zhang Jufeng, Yu Lan   +4 more
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Study on influence law of non-uniform overburden load on goaf subsidence in open-pit mine

Meikuang Anquan, 2021
In order to study the influence law of non-uniform overburden load on the goaf subsidence of open-pit mine, based on mining subsidence theory and technology, a subsidence model of goaf was established.
SU Erhuan, CHEN Tao, NIU Jingfu, LIU Yu
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Study on the Effect of Pore Evolution on the Coal Spontaneous Combustion Characteristics in Goaf

Fire
Understanding the characteristics of coal spontaneous combustion (CSC) in goaf under different porosities is crucial for comprehending the mechanism of CSC and its prevention and control.
Jinglei Li, Hao Xu, Genshui Wu
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