样条函数模拟土坡滑动面的效率分析
摘要:土坡稳定分析中,二维滑动面通常由一系列点顺序连接产生,并且将点的坐标当作优化变量来搜索临界滑动面,当点的个数较多时会导致优化变量较多;只需给定少量的控制节点,即可利用三次样条函数得到光滑的曲线作为任意滑动面,该法对于含软弱夹层土坡,无需事先指定直线段。利用不平衡推力法计算给定滑动面的安全系数,采取和声搜索算法确定最小安全系数相应的临界滑动面。对3个土坡算例进行了比较分析,比较了常规策略与样条函数方法在模拟土坡滑动面时的效率。
Abstract:The two-dimensional slip surfaces are usually generated by connecting a series of nodal points, of which the coordinates are optimized to locate the critical slip surface. The more the number of nodal points is, the more the number of optimization variables. Based on several nodal points, the Spline function can be used to generate smooth curve as the slip surface. And it is also applicable to the soil slope containing soft layers without pre-definition of lines between two adjacent nodal points. The factor of safety related to the given slip surface is obtained by unbalanced thrust force method and the harmony search algorithm is adopted to determine the critical slip surface for three soils slopes. The performance study on the generation of Spline Function is performed.
中文标题：
样条函数模拟土坡滑动面的效率分析
Performance Study on Slope Slip Surface Generation by Spline Function
作者：
李亮,王秋生
Li Liang,Wang Qiusheng
作者简介:李亮,1977年生,男,山东济南人,博士后,主要从事土坡稳定分析的相关研究。E-mail:liangli14@yahoo.com.cn
通讯地址：
中国水利水电科学研究院岩土工程研究所, 北京 100044
DepartmentofGeotechnicalEngineering,ChinaInstituteofWaterResourcesandHydropowerResearch,Beijing100044China
中图分类号:P642.22
出版物：岩土工程技术
收稿日期:2008-01-24
网络出版日期:2021-07-07
关键词:边坡稳定,滑动面模拟策略,样条函数,和声算法
Key words:slope stability,generation of slip surface,Spline Function,harmony search algorithm
文档包含图片数量：图片(0)张
文档包含表格数量：表格(0)个
参考文献：
基金项目：
- 文件大小:
- 480.04 KB
- 下载次数:
- 60
-
高速下载
|
|
