Computation of the safety factor for slope stability using discontinuous deformation analysis and the vector sum method
Computation of the safety factor for slope stability using discontinuous deformation analysis and the vector sum method
复制标题
利用不连续变形分析和矢量和法计算边坡稳定安全系数
DOI：
10.1016/j.compgeo.2017.07.026
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发表时间：
2017-12-01
影响因子：
5.3
通讯作者：
Zhang, Zhenping
中科院分区：
文献类型：
--
作者：
Fu, Xiaodong;Sheng, Qian;Zhang, Zhenping
通过考虑离散块体系统的滑动向量和应力状态，将向量和方法引入到基于非连续体的方法中。详细介绍了该方法的滑动方向计算和力投影，并采用显式方程求解安全系数。在不连续变形分析（DDA）程序中实现了向量和法，并对两个数值算例进行了安全系数的计算。与理论分析和极限平衡分析结果的比较表明，新方法适用于边坡安全系数的计算。(C) 2017 Elsevier Ltd.版权所有。
This study introduces the vector sum method into discontinuum-based methods by considering the sliding vector and the stress state of the discrete block system. The sliding direction computation and force projection in the new approach are detailed, and the safety factor is solved by explicit equations. The vector sum method is implemented in the discontinuous deformation analysis (DDA) program and is used to compute the safety factors for two numerical examples. A comparison of the solutions obtained with the theoretical analysis and limit equilibrium analysis demonstrates that the new method is suitable for calculating the safety factor of a slope. (C) 2017 Elsevier Ltd. All rights reserved.