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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
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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
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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: |
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Slope stability analysis based on arc height as control variable |
ZHANG Xiao-wen1,ZHANG Xiao-fang2,LI Guo-ying1
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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 |