轴向压力对软岩渗透性影响的试验分析

ifferent types of soft rock have different lithological characters, and the permeability and strength are also different. In the diagenetic process, due to temperature, pressure and hydro-geological conditions and other factors, its internal structure and stress distribution are in a relatively stable state. When the soft rock is disturbed by the role of external factors, the steady state will be destroyed, leading to reorganization of the internal structure of rocks and formation of new substances, thereby affecting the macro-physical parameters of the soft rock. The impacts of external factors on the macro-physical parameters of the soft rock are significant, and this study states the impact of the axial pressure. Then study of rock permeability at different stress state is carried out through physical experiments.