【作者】 王根龙； 伍法权； 张军慧； 刘建有； 刘彤；

【Author】 WANG Genlong~(①②) WU Faquan~①ZHANG Junhui~②LIU Jianyou~①LIU Tong~①(①Key Laboratory of Engineering Geomechanics,Chinese Academy of Sciences,Beijing 100029)(②Institute of Disaster-Prevention Science and Technology,Chinese Earthquake Administration,Yanjiao 101601)

【机构】 中国科学院工程地质力学重点实验室； 中国地震局防灾科技学院；

【摘要】 基于能量法的上限定理,在定义滑体为变形体的条件下,采用能量法和强度折减法的有机结合,推导得出了土质边坡的能量法安全系数计算公式。能量法与传统刚体极限平衡法的区别在于:(1)前者使用的是能量平衡,而后者使用的是静力平衡;(2)前者将滑体视为变形体,而后者将滑体视为刚体。通过典型算例分析计算,结果显示,采用能量法进行土质边坡稳定性分析,得到的安全系数要比传统的瑞典圆弧法略小。更多还原

【Abstract】 Based on upper bound theorem of energy method,and concerning the sliding body of soil slope as deformable body,the calculation formula can be deduced according to proper combination of energy method and strength reduction method.The difference between energy method and traditional rigid limit equilibrium method shows in two aspects:firstly the former uses energy balance,whereas the latter uses static balance;secondly,the former treats sliding body as deformable body,whereas the latter treats sliding body as rigid body.Through a typical case study,the calculation results show that the safety factor of energy method is smaller than rigid limit equilibrium method.更多还原