基于弦高控制变量的边坡稳定分析方法

张小稳; 张晓芳; 李国英

引用本文:	张小稳,张晓芳,李国英.基于弦高控制变量的边坡稳定分析方法[J].水利水运工程学报,2007,(4):62-65

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基于弦高控制变量的边坡稳定分析方法
张小稳¹,张晓芳²,李国英¹
1. 南京水利科学研究院,江苏,南京,210029 2. 南京市水利规划设计院有限责任公司,江苏,南京,210006

摘要:

针对传统圆弧法边坡稳定分析中控制变量取值范围难以确定的问题，提出以弦高及上下交点X坐标值作为圆弧的控制变量，分析了各控制变量与安全系数之间的关系，据此提出筛选法搜索最危险滑弧，并通过算例进行了验证．

关键词: 边坡稳定圆弧法控制变量全局搜索

DOI：

分类号:TU413.62

基金项目:

Slope stability analysis based on arc height as control variable

ZHANG Xiao-wen¹,ZHANG Xiao-fang²,LI Guo-ying¹

Abstract:

To deal with the problems that boundaries of control variables are difficult to determine in traditional slope stability analysis with circular sliding surface method, a new method is put forward in which arc height and X values of upper and lower points of intersection are regarded as control variables of arc. The relationships between each control variable and safety factor are analyzed. Based on these analyses, a global optimization method is presented which is validated through some engineering examples.

Key words: slope stability circular sliding surface method control variable global optimization method