严格极限平衡条分法框架下的边坡临界滑动场

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.

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

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.