土木工程与管理学报2017，Vol.34Issue(1)：113-116,142,5.
基于正交设计的基坑开挖放坡稳定影响因素敏感性分析
Sensitivity Analysis of the Influence Factors on Slope Excavation
摘要
Abstract
Taking the foundation slope of a university culture center as an example, the sensitivity analysis of the factors which influence the slope stability of the foundation pit including foundation soil cohesive force, internal friction angle, weight, height and slope was done. The quantitative evaluation of sensitive factors was done based on the combination of conventional orthogonal experiment, the calculation of soil mechanics safety coefficient by Sweden Circle and Bishop methods were done by Matlab software. The slope safety coefficient was calculated according to instance data, quantitative evaluation of the sensitivity of the factors was done by range analysis, variance analysis, interactive analysis and variation trend analysis of safety coefficient in order to find the main and secondary factors influencing the stability of foundation pit. The results obtained through the comprehensive analysis of a series of experiments, which were in accordance with engineering practice, showed that soil cohesive force, weight and height should be taken as the main factors whereas internal friction angle and slope as the secondary ones and could provide guidance for similar projects in the future.关键词
基坑边坡/正交试验设计/敏感性分析/极差分析/方差分析/交互作用Key words
foundation pit slope/orthogonal experiment design/sensitivity analysis/range analysis/variance analysis/interactive analysis分类
建筑与水利引用本文复制引用
李英华,张明媛,袁永博..基于正交设计的基坑开挖放坡稳定影响因素敏感性分析[J].土木工程与管理学报,2017,34(1):113-116,142,5.基金项目
中央高校基本科研业务费专项资金资助项目(DUT14QY42) （DUT14QY42）
