STRENGTH PROPERTIES OF JOINTED ROCK MASSES BASED ON THE HOMOGENIZATION METHOD

作     者：Hongtao Zhang Jianming Zhu Yinghua Liu Bingye Xu Xiaochun Wang 

作者机构：Department of Civil EngineeringNorth China University of TechnologyBeijing 100144China Department of Engineering MechanicsTsinghua UniversityBeijing 100084China 

出 版 物：《Acta Mechanica Solida Sinica》 (固体力学学报（英文版）)

年 卷 期：2012年第25卷第2期

页      面：177-185页

核心收录：

学科分类：08[工学] 080104[工学-工程力学] 0815[工学-水利工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the Natural Science Foundation of China (No. 50809003) NCUT Financial 

主　　题：jointed rock mass homogenization representative element volume (REV) upperbound limit analysis anisotropy 

摘      要：This paper aims to determine the strength properties of jointed rock masses by means of the homogenization method. To reflect the microstructure of jointed rock masses, a representative element volume （REV） is selected. Assuming being rigid and perfectly plastic and utilizing the Mohr-Coulomb yield criterion for rock and joints, an upper bound limit analysis method is proposed based on the homogenization theory. By using the finite element method and Goodman joint element, a nonlinear mathematical programming with equality constraints is formulated, which can be solved by a direct iterative algorithm. Numerical results show the strength of jointed rock masses behaves anisotropy with different joint directions. This method presents an effective tool for the strength analysis of jointed rock masses.