Variation of rock permeability during deformation and failure

在不同的围压和温度条件下，对四方焊接凝灰岩、木町砂岩和稻田花岗岩进行了三轴压缩试验，旨在阐明渗透率的变化规律及其机理。结果表明，凝灰岩和砂岩的渗透率因破裂而降低，高温下流量增大。预计这些发现将有助于以较低的成本设计和建造更安全的地下洞室。

Triaxial compression tests were carried out on Shikotsu welded tuff,Kimachi sandstone and Inada granite under several confining pressures and temperatures,aiming to clarify permeability variation and mechanisms of it. It was clarified thatpermeability decreased by failure for tuff and sandstone and that flow rate increased underhigh temperature. It would be expected that these findings will contribute for design andconstruction of safer underground openings with lower cost.