工程地质学报2011，Vol.19Issue(4)：615-619,5.
基于点估计法的黄土边坡可靠度研究
RESEARCH ON LOESS SLOPE RELIABILITY BASED ON THE POINT ESTIMATE METHOD
张亚国 1张波 1李萍 1李同录1
作者信息
- 1. 长安大学地质工程与测绘学院 西安710054
- 折叠
摘要
Abstract
Based on the point estimate method and finite element strength reduction method,this paper calculates the reliability indexes of 4 typical cutting slopes in different loess regions. The results show that: the stability coefficient of case 2 is 1.46,but its failure probability is 19. 2% ; although case land 4are similar in slope type,the lithology and layer thickness,etc,the difference between their failure probabilities can reach 29. 8% .parameter variation is the main reason of causing the difference. Using point estimation method to calculate slope reliability can be an appropriate way to solve the problem that soil parameters discreteness influences slope stability assessment.关键词
黄土边坡/有限元强度折减法/点估计法/可靠度/失效概率Key words
Loess slope/ Finite element strength reduction method/ Point estimate method/ Reliability/ Failure probability分类
建筑与水利引用本文复制引用
张亚国,张波,李萍,李同录..基于点估计法的黄土边坡可靠度研究[J].工程地质学报,2011,19(4):615-619,5.
