GENERALIZATION OF TWO-DIMENSIONAL DISCONTINUOUS DEFORMATION ANALYSIS FOR FORWARD MODELING
GENERALIZATION OF TWO-DIMENSIONAL DISCONTINUOUS DEFORMATION ANALYSIS FOR FORWARD MODELING
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DOI：
10.1002/nag.1610130403
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发表时间：
1989-07-01
影响因子：
4
通讯作者：
GOODMAN, RE
中科院分区：
文献类型：
--
作者：
SHI, GH;GOODMAN, RE
本文为岩块系统正演数值模型的建立提供了理论基础。该方法可同时计算岩块的应力、应变、滑移和张开，刚体运动和变形同时发生。输入数据包括块体几何形状、加载力、变形常数E和v以及块体系统的约束或边界条件。输出数据给出每个块体的运动、变形、应力和应变，以及块体的滑动、分离或重新连接。作用在每个块体上的力，来自外部载荷或与其他块体的接触，满足平衡方程。在外力和块体应力之间也达到平衡。此外，该分析满足块体之间无张力和一个块体不穿透到另一个块体的约束。为了达到平衡并满足这些约束条件，每次选择接触约束时，通过改变部分系数来重复求解联立方程组。
This paper provides the theoretical basis for a forward numerical model of rock block systems. This method was developed to compute stress, strain, sliding and opening of rock blocks; rigid body movement and deformation occur simultaneously. Input data consist of block geometry, loading forces, the deformability constants E andv, and the restraint or boundary conditions of the block system. Output data give the movements, deformations, stresses and strains of each block, and the sliding and detachment or rejoining of blocks.The forces acting on each block, from external loading or contact with other blocks, satisfy the equilibrium equations. Equilibrium is also achieved between external forces and the block stresses. Furthermore, this analysis fulfills constraints of no tension between blocks and no penetration of one block into another. To acheive equilibrium and satisfy these constraints, simultaneous equations are solved repeatdly with partial changes of the coefficients each time the contact constraints are chosen.