Energy Science & EngineeringIn mining, the roof structure of a working face with a large mining height in a shallow‐buried coal seam is prone to cutting instability in front of the support, which causes support crushing and coal‐wall spalling. This study analyzes 2201 working faces
Wang Hongwei +7 more
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Prevention Technology for Strong Mine Pressure Disaster in the Hard-Roof Large-Mining-Height Working Face [PDF]
Shock and Vibration, 2020 The movement and destruction of the hard roof in a stope is an important reason for the occurrence of strong ground pressure disasters at the working face.
Hong-Fei Duan, Li-Juan Zhao
semanticscholar +4 more sources
Research on Technology of Supporting in Super-Large Section Cut in Working Face with Large Mining Height [PDF]
Advances in Civil Engineering, 2021 For the support problem of the super-large section cut in working face with large mining height, the 1105 cut pilot chamber of Zhaogu No. 2 Mine, the roof strata structure detection and the strata movement rule research were conducted.
Zhi-Cheng Ren, Ming-Hui Zuo
semanticscholar +4 more sources
Study on Surrounding Rock Control and Support Stability of Ultra-Large Height Mining Face
Energies, 2022 Surrounding rock control and support stability in the process of coal seam mining in ultra-large height mining face are the key to normal mine operation.
Sheng Wang, Xuelong Li, Qizhi Qin
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Geofluids, 2022 Aiming at the wide range of rock strata movement and collapse, poor stability and high damage rate of the working face support and being prone to crushing of the support in large mining height face, analog simulation, theoretical analysis, and field ...
Fengfeng Wu +5 more
doaj +3 more sources
Characteristics of Overburden Failure and Fracture Evolution in Shallow Buried Working Face with Large Mining Height [PDF]
Sustainability, 2021 In order to solve the issues of uncertain overburden failure height and water loss at the Daliuta coal mine, the collapse characteristics of overburden and the development height of water-conducting fractured zone were studied by using physical modeling,
Xiu-Chang Shi, Jixing Zhang
semanticscholar +3 more sources
Key Stratum Structure and Support Working Resistance of Longwall Face with Large Mining Height in the Shallow Coal Seams, China [PDF]
Advances in Civil Engineering, 2020 The fully mechanized mining with large mining height is the main method for high yield and efficient coal mining in China. The key stratum structure (KSS) is the basis of revealing the mechanism of roof weighting and determination of support working ...
Qing-Xiang Huang +2 more
semanticscholar +4 more sources
Research on Surface Failure Law of Working Faces in Large Mining Height and Shallow Buried Coal Seam [PDF]
Advances in Civil Engineering, 2020 In the process of high-intensity and large-space mining in Shendong mining area, various surface cracks are generated on the surface, resulting in serious damage to the surface buildings and the local ecological environment.
Zhenhua Li +3 more
doaj +3 more sources
Gong-kuang zidonghua, 2018 In order to solve problems of large number of workers and high labor intensity on fully mechanized mining face with large mining height, according to actual situation of No.2 Coal Mine of Huangling Mining Group Co., Ltd., technical difficulties such as ...
FAN Jingdao
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Surrounding rock control technology of 10 m super large mining height working face in Caojiatan Coal Mine [PDF]
Meitan xuebaoThe 10 m ultra-large mining height of Caojiatan Coal Mine is a world’s first in terms of single mining height and mining intensity, and the effective control of surrounding rock in the stope is crucial for safe and efficient mining at the working face ...
Rui WANG +13 more
doaj +3 more sources