严格极限平衡条分法框架下的边坡临界滑动场  

CRITICAL SLIP FIELDS OF SLOPES SATISFIED ALL CONDITIONS OF LIMIT EQUILIBRIUM FOR SLICES

作　　者：朱大勇[1] 钱七虎[2] 

机构地区：[1]河海大学 [2]解放军理工大学工程兵工程学院

出　　处：《土木工程学报》2000年第5期68-74,共7页China Civil Engineering Journal

基　　金：国家博士后基金;江苏省博士后基金

摘　　要：首先将严格极限平衡条分法进行改进，给出更实用的安全系数计算格式；然后将只满足力平衡条件的边坡临界滑动场数值模拟方法进行推广，建立一套能满足严格平衡条件的边坡临界滑动场计算方法。对文献中的算例进行计算比较，结果表明本文计算的临界滑动面比其它方法搜寻的临界面更危险，即得到更小的安全系数，展示了本文方法的精度与可靠性。A modification of a traditional method for the slope stability is performed. performed comes with a more practical practical algorithm for calculating the factor of safety. An extension of the numerical simulation for critical slip fields (CSF) is made, which only a force equilibrium is considered. Then, a numerical scheme is proposed for calculating CSF that satisfies all conditions of limit equilibrium. The computing results indicate that critical slip surfaces with a lowest factor of safety can be found by the pro posed scheme. The results show that the proposed scheme is feasible and with a high precision.

关 键 词：边坡 稳定性 极限平衡 临界滑动场 

分 类 号：TU457[建筑科学—岩土工程]