考虑渗流的基坑边坡稳定分析

系统地总结了,目前基坑边坡稳定验算中常用的几种考虑渗流力的方法.在深入探讨地下水渗流对基坑边坡稳定作用机理的基础上,提出有限元法与条分法相结合的新方法.该方法采用条分法进行基坑边坡的稳定性分析;采用有限元法计算基坑周围的渗流场,求出作用于各土条上的渗流力并将其参与到稳定验算中.通过对以上几种计算方法的比较,阐明了各种方法的优劣及其适用条件.

A NEW METHOD FOR THE SLOPE STABILITY ANALYSIS OF FOUNDATION PIT CONSIDERING SEEPAGE

A new method considering the seepage forces for the slope stability analysis of a foundation pit is proposed in the paper. There are still numerous approaches and to be discussed in detail. It is studied thoroughly on the topic of the slope stability of a foundation pit. A new method that combing finite element with strip partition is developed. The strip partition method is employed to analyze a problem of slope stability. Finite element method is used for the seepage field analysis. The seepage forces acting on each soil strip have been obtained, and then put them into the slope stability analysis. Results from comparing the new method with the current used clarified their advantages and limitations.