A Novel Damage-Based Permeability Model for Coal in the Compaction and Fracturing Process Under Different Temperature Conditions

Before a coal mining operation, it is necessary to carry out coal-bed methane (CBM) pre-extraction to prevent coal and gas explosions, causing accidents. However, gas extraction and coal mining will lead to coal damage, which results in a change in the gas migration law. Especially, under deep minin...

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Veröffentlicht in:	Rock mechanics and rock engineering 2020-12, Vol.53 (12), p.5697-5713
Hauptverfasser:	Ren, Chonghong, Li, Bobo, Xu, Jiang, Zhang, Yao, Li, Jianhua, Gao, Zheng, Yu, Jin
Format:	Artikel
Sprache:	eng
Schlagworte:	Axial strain Axial stress Civil Engineering Coal Coal mines Coal mining Compaction Damage Earth and Environmental Science Earth Sciences Explosions Exponential functions Fractures Fracturing Gas explosions Gas flow Geophysics/Geodesy High temperature Mechanical properties Mining Modulus of elasticity Original Paper Permeability Seepage Strain Temperature Temperature effects
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