岩土工程学报2011，Vol.33Issue(5)：700-704,5.
基于SMP准则的衬砌隧道围岩抗力系数的计算
Determination of rock resistant coefficient in lining tunnels based on SMP failure criterion
摘要
Abstract
According to the viewpoint of load, it is very important to consider the common bearing and the secondary stress functions caused by excavating for the surrounding rock and lining.Based on the spatially mobilized plane (SMP) failure criterion.the formula for calculating rock resistant coefficient is given.It can be adopted to consider the intermediate principal stress effect.Through changing the internal friction φ and the cohesion C of the physical mechanics nature for the tunnel rock, it is shown that considering the influence of the intermediate principle stress can enhance the rock resistant coefficient of the lining tunnels compared with the rock resistant coefficient by using the Mohr-Coulomb failure criterion.So the rock resistant coefficient of the lining tunnels has certain practical significance based on the SMP failure criterion of the cohesion materials.关键词
SMP准则/围岩抗力系数/衬砌隧道/中间主应力Key words
SMP failure criterion/ rock resistant coefficient/ lining tunnel/ intermediate principal stress分类
建筑与水利引用本文复制引用
朱建明,彭新坡,徐金海..基于SMP准则的衬砌隧道围岩抗力系数的计算[J].岩土工程学报,2011,33(5):700-704,5.基金项目
国家自然科学基金项目(50479001) （50479001）
