摘要
采用力学理论研究了裂隙岩体渗透系数随埋深及水压力的变化规律，得出渗透系数与埋深及水压力的关系式．另外，将裂隙岩体介质假设为互相平行的几组裂隙网络，提出了应力与渗流的耦合模型，得出了裂隙岩体与三向应力的关系式．利用这些公式及有限元方法计算了受采矿影响后岩体的渗透性变化值，并且得到了试验结果的证实．
The relationship between permeability coefficient and buried depth and water pressure in fractured rock mass is studied by using mechanics theory and the relational expression of permeability coefficient and buried depth and water pressure is obtained. In addition assuming the medium of fractured rock mass as equivalent fracture network in which fractures parallel each other the coupling model of permeability and stress is given and the relational expression between fractured rock mass and three dimensional stress is obtained. Using the equations given and the finite element method,change of permeability of rock mass affected by mining is calculated and proved by test results.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1997年第5期481-485,共5页
Journal of China Coal Society
基金
煤炭科学基金
关键词
裂隙岩体
渗透系数
埋深
水压力
应力
地下水
fractured rock mass, permeability coefficient, buried depth, water pressure, three dimensional stress
