三维块体系统非连续变形正分析模型  

THREE-DIMENSIONAL DISCONTINUOUS DEFORMATION ANALYSIS FOR FORWARD MODELING

作　　者：姜清辉[1] 杨文柱[2] 丰定祥[3] 

机构地区：[1]武汉大学水力发电工程系,武汉430072 [2]香港大学土木工程系 [3]中国科学院武汉岩土力学研究所,武汉430071

出　　处：《岩石力学与工程学报》2002年第12期1765-1769,共5页Chinese Journal of Rock Mechanics and Engineering

摘　　要：将非连续变形分析方法推广至三维,在一定的线性位移模式下,按最小势能原理建立三维块体非连续变形正分析模型,详细推导了荷载子矩阵、惯性子矩阵、位移约束子矩阵和接触子矩阵,给出了相应的公式和算例。The discontinuous deformation analysis method of forward modeling is extended to three-dimensional cases. Just as in the two-dimensional discontinuous deformation analysis, each block has linear displacement function or constant strains and the equilibrium equations are established by minimizing the total potential energy. The elastic submatrices, the loading submatrices, the inertia submatrices and the contact submatrices are derived and added to the global equations. Two examples are computed and the numerical results indicate the proposed forward model is correct and valid.

关 键 词：三维块体系统 节理岩体 非连续变形分析 

分 类 号：O242.1[理学—计算数学]