Modeling the coupled evolution of strain and CH4 seepage under conventional triaxial compression is the key to understanding enhanced permeability in coal.
Mining induced stress, especially discontinuous redistribution and stress drop, is a major issue of structural stability in deep coal mining.
The results show that the TM description effectively should be consideration on the meso parameters, i.e. crack number with the fractal dimension, crack length and spacing.
Tests of the effects of uniaxial compression on the structural behavior of fractured coals were conducted.