摘要
在高堆石坝建设中,堆石等粗粒土材料在高围压下的强度非线性特征非常显著,仅用传统的安全系数法进行大坝坝坡稳定分析是不够完善的,本文采用基于FEM的坝坡稳定体系可靠度分析方法,综合考虑高堆石坝破坏模式的不确定性,量化安全裕度,对优化高堆石坝坝坡设计、减少工程投资等都具有极大的现实意义。
In the construction of high rockfill dam,the nonlinear characteristics of rockfiIland coarse-grained soil material under the strength of the high confining pressure isvery significant;the dam slope stability analysis by the traditional safety factor method is not enough;In this paper,based on FEM slope stability system reliability analysis,Itconsiders the high rockfill dam failure mode uncertainty to quantify the safety margin,high rockfill dam slope design optimization,to reduce project investment and has greatlypractical significance.
出处
《吉林水利》
2013年第6期31-33,共3页
Jilin Water Resources
关键词
FEM
高堆石坝
坝坡稳定
体系可靠度
FEM
high rockfill dam
slope stability
reliability system
