Results 131 to 140 of about 10,633 (207)

Demonstration project of safe and efficient mining operations in extra-thick coal seam [PDF]

Frontiers of Engineering Management, 2017
openaire   +1 more source

Demonstration Project of Safe and Efficient Mining Operations in Extra-thick Coal Seam [PDF]

Frontiers of Engineering Management, 2016
openaire   +1 more source

Investigation on the dynamic evolution and evaluation of floor microseismic responses during extra-thick coal seam mining. [PDF]

Sci Rep
Wang H, Yin S, Lian H, Cao M, Hou E, Wang X, Xing G.   +6 more
europepmc   +1 more source

Study on optimization of surrounding rock support in the predriven roadway during final mining of an extra thick coal seam. [PDF]

Sci Rep
Yin S, Zhao X, Wang E, Kang Q, Hua Y.
europepmc   +1 more source

Simulation analysis of pressure relief effect of upward mining in the lower protective layer (group) of deep extra-thick coal seam. [PDF]

Sci Rep
Qin G, Zhang Z, Cao J, Ma J, Zhang X.
europepmc   +1 more source

Study on hydraulic fracturing prevention and control of rock burst in roof of deep extra-thick coal seam roadway group. [PDF]

Sci Rep
Lv H, Cheng Z, Xie F, Pan J, Liu F.
europepmc   +1 more source

Stability and control of surrounding rock of narrow coal pillar in vertical stratification of extra-thick coal seam

Meitan xuebao
Aiming at the problem of large deformation and instability control of narrow coal pillar in the vertical stratification section of extra-thick coal seam, the stability and control technology of the surrounding rock of narrow coal pillar in extra-thick coal seam are studied by combining theoretical analysis, numerical simulation and field test. Based on
Chao WU, Zhiqiang WANG, Yaoru LIU, Jingkai LI, Xinsheng GENG, Lu LIN, Tingzhao LI, Lei SHI, Peng WANG   +8 more
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Feasibility study and optimal coal drawing process for fully mechanized caving in close-distance extra-thick coal seams

Gong-kuang zidonghua
Research on optimal coal drawing parameters for working faces with significant variation in seam thickness, where the thickness exceeds the standard mining height in close-distance coal seams, has been limited. This study focused on the feasibility and optimal coal drawing process for fully mechanized caving in the 011N1−1 working face of the Xilutian ...
ZHANG Wei, GAO Peng, CUI Bo, Asihaer·Niyazibieke, PAN Weidong   +4 more
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Mine pressure behavior law and fault activation response of normal fault zones in thick coal seams under mining disturbance. [PDF]

Sci Rep
Xin T, Ji Y, Wang J, Wang B, Bai G, Jin J.   +5 more
europepmc   +1 more source

Mechanisms and influential factors of rock bursts in tunneling roadways of extra-thick coal seams

Meitian dizhi yu kantan
ObjectiveRock bursts occur frequently in tunneling roadways of extra-thick coal seams, significantly constraining safe coal mining. Investigating their mechanisms and influential factors is crucial to preventing and controlling such disasters in tunneling roadways of extra-thick coal seams. MethodsFocusing on the tunneling roadway of mining face 250107-
Yujie PENG, Qiang WANG, Anye CAO, Chengchun XUE, Guowei LYU, Qi HAO, Yaoqi LIU, Xianxi BAI, Dong LI   +8 more
openaire   +1 more source