摘要
把Mohr-Coulomb强度包络线与Hoek-Brown经验强度曲线联系起来,推导出用Hoek-Brown强度曲线的斜率计算围岩岩体抗剪强度参数的公式,指出这样得到的抗剪强度参数将与围岩岩体所处的应力状态有关,对不同埋深,开挖卸荷的围岩岩体的数值模拟尤为有效。
In this paper, the Mohr-Coulomb strength enveloping curve and the Hoek-Brown experiential strength curve are linked together, and the formulations for calculating the shear strength parameters by the means of the rate of the Hoek-Brown strength curve are presented. And the parameters acquired in this way have reference to the stress state of rock mass. It has been proved to be very useful for the analysis of the tunnels covered in different depths and their rock mass undertaken unloading in the process of excavating.
出处
《山西建筑》
2009年第15期333-334,共2页
Shanxi Architecture
