TAO Shuai,WANG Xuebin,PAN Yishan,WANG Wei.线性及非线性屈服函数交界处临界应力对隧洞围岩力学行为的影响水资源与水工程学报[J].,2011,22(2):
线性及非线性屈服函数交界处临界应力对隧洞围岩力学行为的影响
Effects of critical stress corresponding to the tangential point between linear and nonlinear yield functions on the mechanical behavior of tunnel surrounding rock
Bilinear Mohr-Coulomb and nonlinear Hoek-Brown yield functions are combined in FLAC using C++.Influence of the critical stress corresponding to the tangential point of linear and nonlinear yield functions on numerical results is a key problem.Surrounding rock with a circular tunnel is modeled and results of plastic zones,stresses,displacements and shear strain increments are obtained.Results show that the plastic zone radius,the shear strain increment of monitored elements and the displacement of monitored ...