摘要
本文就适合于岩石力学的广义双剪屈服准则、双剪帽子模型、双剪角隅模型以及与洛德(Lods)参数对应的双剪参数t_τ,利用有限元法结合实际工程中的算例进行了全面研究。初次用某高地应力区花岗岩进行的真三轴试验和计算结果表明,岩石强度符合广义双剪准则。双剪强度理论具有概念清晰,考虑了应力状态的各个分量,能够反映中间主应力效应等特点,并且可以节省大量工程投资,具有较大的经济价值。
The generalized twin shear stress yield criterion in rock, twin shear cap model, twin shear ridge model, twin shear stress parameter t_τ are studied thoroughly in this paper, and a special program in which the generalized twin shear stress yield criterion has been implemented are applied to research the rock engineering of a large hydroelectric power station.The experimental results of rock under true triaxial condition conform with the generalized twin shear stress yield criterion.The results of the research show that this new twin shear stress strength theory of professor Yu Maohong has a clear concept and simple expressions, the effect of intermediate principal stress is taken into account, and it is convenient for finite element analysis of rock engineering. A lot of project investment may be saved by using this new theory.
出处
《岩土力学》
EI
CAS
CSCD
1991年第1期17-26,共10页
Rock and Soil Mechanics
