三维结构面网络模拟在岩体变形特性中的应用

Application of the Three-Dimensional Joint Network Simulation in the Study of the Deformability of Rock Masses

本文根据概率论方法对岩体结构面空间几何特征的统计分析结果,利用Monte-Carlo方法进行了岩体结构面的三维网络模拟.在此基础上研究了岩体的变形特性,建立了包含随机非贯穿结构面网络系统的岩体本构关系和岩体弹性变形常数的估算公式,并分析影响岩体弹性变形性状的因素,最后是实例分析.

According to the geostatistical results of joints geometrical characteristics, the three-dimensional joint network is generated by means of Monte-Carlo method. In this paper the elsatic deformability of rock masses is established.The results show that the elsatic compliance coefficient matrix is a function ofjoints orientation, joint size. density of joint, Young's modulus and Poisson'sratio of intact rock. The results also show that the irregular distribution ofjoint dip direction and dip angle is responsible for the anisotropy of rock mass.