摘要
研究了岩样三轴压缩过程中环向变形比轴向变形更早、更快地偏离线弹性状态的原因,给出了确定泊松比的方法.实验发现岩样的轴向和环向塑性变形之间具有线性关系,并从材料的剪切破坏机理进行了解释.
It is explained clearly that rock sample’s circumferential deformation deviates from the linear elastic law earlier and faster than its axial deformation. A method to measure Poisson’s ratio using the experimental results under triaxial compression is given. The research shows that the circumferential plastic deformation varies linearly with the axial plastic deformation, which results from the shear failure of rock material.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
1997年第1期1-4,共4页
Journal of China University of Mining & Technology
关键词
岩石力学
三轴压缩
环向变形
塑性变形
岩样
rock mechanics, triaxial compression, circumferential deformation, plastic deformation, Poisson’s ratio