A new approach to the determination of the critical slip surfaces of slopes   总被引：1，自引：0，他引：1  

李亮  郑榕明  褚雪松 《中国海洋工程》2013,27(1):51-64

A new method for the determination of the critical slip surfaces of slopes is proposed in this paper.In this paper,the original critical slip field method is extended in terms of the total residual moment,values of residual work as well as the unbalanced thrust force at the exit point for a given non-circular slip surface.The most critical slip surface with the maximum representative value for a prescribed factor of safety will be optimized and located using the harmony search algorithm.The prescribed factor of safety is modified with certain tiny interval in order to find the critical slip surface where the maximum representative value is zero.The aforementioned approach to the location of the critical slip surface is greatly different from the traditional limit equilibrium procedure.Three typical soil slopes are evaluated by use of the proposed method,and the comparisons with the classical approaches have illustrated the applicability of the proposed method.  相似文献   

基于椭球滑动体假定和三维简化JANBU法的边坡稳定分析   总被引：1，自引：0，他引：1  

李亮  迟世春  郑榕明 《岩土力学》2008,29(9):2439-2445

采用一般椭球体模拟三维土坡的滑动体,利用三维简化JANBU法计算其安全系数,该法假定各个条柱底面的滑动方向在水平面上的投影相等,借此可用一个变量来表达各个底滑面的滑动方向,简便易行。此外,综合借鉴粒子群优化算法和和声算法的优点,提出了改进的粒子群算法,并利用对2个三维土坡的最危险滑动体进行了搜索,与已有结果进行了对比分析,表明方法是可行有效的。  相似文献   

节理岩体三维块体系统面向对象的数据结构   总被引：2，自引：3，他引：2  

郑榕明  陈文胜  葛修润 《岩土力学》2002,23(1):55-59

节理岩体三维块体系统的数据结构直接关系到三维块体计算程序开发的难易及程序运行的效率。由于岩体三信块体的任意性、复杂性，使其数据的组织有相当的困难，采用面向对象的设计思想，在C＋＋语言环境下，对三维块体系统的数据结构进行了研究与开发，获得了满意的结果。  相似文献