摘要
对于层状岩体，在有限元方法中可将其当成横观各向同性的连续介质进行计算。因为层状岩体在平行与垂直层面的方向上具有不同的强度特性，故进行非线性分析时岩体强度的异向性必须考虑。据此作者研制了一个可以处理层状岩体强度异向性的弹塑性及无拉分析的平面有限元程序，并举例进行了计算和结果分析。
For the laminated rock body it can be determined as horizontally isotropic continuous media in FEA.Due to the difference in strength horizontally and vertically,for the nonlinear analysis the directional property of rock strength should be taken into account.The author has compiled a plane FEA program for elastico_plasticity and nontensile analysis of directional property of laminated rock strength.Calculation and analysis on example were carried out and some conclusions were given.
出处
《地下空间》
CSCD
1999年第1期30-34,共5页
Underground Space
关键词
层状岩体
强度异向性
地下洞室
有限元
Laminated rock body, directional property of strength, underground tunnel, plane FEA
