矿业科学学报, 2017 In order to grasp the overburden structure and support working resistance of working face in fully-mechanized top coal caving with large mining height in ultra thick coal seam, this paper study the ultra thick coal seam in Tongxin coal mine.The fracture ...
Hou Yunbing +4 more
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Coal seam gas control technology in working face with low content and high gas emission
Meikuang Anquan, 2021 In order to solve the problem of increasing gas emission caused by ultra-high intensity mining in fully mechanized top coal caving face with large mining height, starting from the gas emission law of fully mechanized caving face with large mining height,
ZHANG Dongxu
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Study on overburden structure and working resistance of supports in deep buried coal seam
Meikuang Anquan, 2023 In view of the characteristics of complex overburden structure and strong mining pressure in deep coal seam working face with large mining height, taking Yangchangwan Coal Mine as the engineering background, the mechanical model of overburden rock ...
LIU Hongtao, HAN Zhou, HAN Zijun, YANG Zhihua, HE Weisheng, WANG Sichen, LUO Zilong
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Research on Water-Conducting Fractured Zone Height under the Condition of Large Mining Height in Yushen Mining Area, China [PDF]
, 2023 Accurately predicting the development height of the water-conducting fracture zone (HW) is imperative for safe mining in coal mines, in addition to the protection of water resources and the environment.
Dong Feng +3 more
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Meikuang Anquan, 2020 Aiming at the problems that the coal wall rib spalling in the working face affects the economic benefits of fully mechanized mining technology with large mining height, the 3-1 coal seam occurrence conditions of Hongqinghe Coal Mine is taken as the ...
YIN Ruibin, KANG Tianhe, LI Chao, WANG Lilong
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The Influence of Overburden Structure on Mine Ground Pressure Appearance in Working Face with Super-large Mining Height: a Case Study in Shendong Mining Area [PDF]
International Journal of Engineering, 2021 The Shendong mining area where is located in the northwest of China has the highest fully mechanized working face in the world. The purpose of this paper is to understand the causes of abnormal mine ground pressure appearance (MGPA) on the fully mechanized mining working face with super-large height in Shendong mining area.
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Geoenvironmental Disasters, 2023 Background The mining-induced stress in the surrounding rock after coal seam mining is the primary cause of damage and failure of the surrounding rock in the mining area.
Shoulong Ma +5 more
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Abutment Pressure Distribution Law and Support Analysis of Super Large Mining Height Face
, 2022 Under the condition of the shallow coal seam, the laws of roof activity after large mining height longwall face mining and prevention measures for large-area roof weighting are problems that need to be solved urgently.
Libo Zhang +6 more
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Plastic zone distribution and main controlling factors analysis of large mining height face in steeply dipping coal seam [PDF]
, 2023 Coal wall of large mining height face in steeply dipping coal seam has large free height, wide free movement space and poor self-stabilization balance, coal wall is not an isolated body in the face, it can form a load-bearing structure with the ...
Yongping WU, Panshi XIE, Hao ZHANG
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Overlying rock movement and mining pressure in a fully mechanized caving face with a large dip angle
Frontiers in Earth Science, 2022 The overlying rock movement and mining pressure in the fully mechanized caving face with a large dip angle were systematically investigated according to theoretical analysis, similar material simulation, numerical calculation, and field monitoring.
Ying Chen +11 more
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