Chunlei Zhang1,2,3,*, Y. P. Chugh2, Ruimin Feng4, Yong Zhang5, Wei Shen1, Jingke Wu1, Yushun Yang1
CMES-Computer Modeling in Engineering & Sciences, Vol.127, No.1, pp. 135-157, 2021, DOI:10.32604/cmes.2021.014665
Abstract Extraction of a protective coal seam (PVCS)-below or above a coal seam to be mined with the potential of coal and
gas outburst risk-plays an important role not only in decreasing the stress field in the surrounding rock mass but also
in increasing the gas desorption capacity and gas flow permeability in the protected coal seam (PTCS). The PVCS
is mined to guarantee the safe mining of the PTCS. This study has numerically evaluated the stress redistribution
effects using FLAC3D model for a longwall face in Shanxi Province. The effects of mining depth, mining height and
inter-burden rock mass properties… More >
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