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Stability Analysis of Roadway Groups under Multi-Mining Disturbances
Applied Sciences, 2021 The roadway stability has been regarded as the main challenging issue for safety and productivity of deep underground coal mines, particularly where roadways are affected by coal mining activities.
Yuantian Sun +7 more
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Shock and Vibration, 2021 The reasonable layout of the roadway in closely spaced, ultra-thick coal seam mining is of great significance to mining safety. Based on the research background of repeated roof leaks in the process of repairing the return air roadway in working face No.
Bin Zhao +3 more
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Mining safely under a coal seam while protecting an overlying roadway
工程科学学报, 2022 To ensure the stability of an overlying roadway in close proximity to a 1000-m deep coal seam, this work, through theoretical analysis and numerical simulation, studies the deformation and failure mechanism, failure types, and prevention methods of the ...
Chao ZHOU +4 more
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Innovation and future of mining rock mechanics
Journal of Rock Mechanics and Geotechnical Engineering, 2021 The 121 mining method of longwall mining first proposed in England has been widely used around the world. This method requires excavation of two mining roadways and reservation of one coal pillar to mine one working face.
Manchao He, Qi Wang, Qunying Wu
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Distributed optical fiber measurement of floor heave evolution in mining roadway
Meitan kexue jishu, 2023 With the deepening of coal mining and the upsizing of mining equipment, the floor heave of the mining roadway has become an important problem that restricts the efficient and safe mining of the working face.
CHAI Jing +11 more
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Key technology of cutting roof in fully mechanized caving face with a height of 6 m
Meikuang Anquan, 2021 In order to solve the problem of roof sinking and serious floor heave caused by mining without coal pillar in No.2 coal mine of Sangshuping in Hancheng Mining Area, the field test and construction of roadway retaining along gob in fully mechanized caving
HUANG Kejun, HU Junfeng, WEI Baoning, WANG Xiangyu, LYU Yuzhu
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Research on full-life cycle gas treatment technology based on floor rock roadway
Gong-kuang zidonghua, 2023 For mines lacking conditions for mining protective layers, pre extraction of coal seam gas from floor rock roadway strips is the mainstream gas control method.
ZHAI Cheng, TANG Wei
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Roadway backfill method to prevent geohazards induced by room and pillar mining: a case study in Changxing coal mine, China [PDF]
Natural Hazards and Earth System Sciences, 2016 Coal mines in the western areas of China experience low mining rates and induce many geohazards when using the room and pillar mining method. In this research, we proposed a roadway backfill method during longwall mining to target these problems.
N. Zhou, M. Li, J. Zhang, R. Gao
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Shock and Vibration, 2022 Highly efficient maintenance and control of the deep strong mining roadway’s stability is a reliable guarantee for the safe production and sustainable development of a coal mine.
Deyu Qian +7 more
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Stabilization of Rock Roadway under Obliquely Straddle Working Face
Energies, 2021 A floor rock roadway under an oblique straddle working face is a typical dynamic pressure roadway. Under the complex disturbance of excavation engineering works, the roadway often undergoes stress concentration and severe deformation and damage. To solve
Peng Wang +4 more
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