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.
N2 flooding in pores and water percolation in fissure is analyzed in-depth to investigate the permeability reduction caused by coalbed methane displacement in low-permeability coal seam in China.
煤岩等多孔介质中毛细管气液两相流规律是解决渗透率理论表达的认识基础，也是揭示低渗机制必经路径。基于微纳米尺度上的毛细管分形结构，具体为纵向上建立分形迂曲度模型与横向上建立分形截面模型，定量解析低渗煤岩孔隙结构。
深部扰动的科学量化定义是重新理解地下工程灾害发生原因强弱的前提。针对平顶山矿区千米埋深煤岩，基于三轴压缩试验获得Hoek-Brown与Mohr-Coulomb力学参数。
岩体热力耦合下破坏机制及响应特征是防治与治理灾害发生的理论基础，也是高放射性核废料深地层处置关注的重要问题。
岩体节理几何特征定量描述是岩体力学性质和渗透性研究的基础，更是核废料处置库场址筛选和评价过程的主要内容。
研究煤岩在不同加载模式与不同加载速率下采动力学响应及破坏机制对认清煤矿动力灾害本质具有指导意义。基于塔山煤样，先后设计与开展了单轴拉伸与压缩、常规三轴及采动力学试验。