水力发电学报2024，Vol.43Issue(7)：73-84,12.DOI:10.11660/slfdxb.20240707
稳定分析中滑动面构造方法分析
Analysis of generating slip surfaces in stability analysis
摘要
Abstract
How to generate a slip surface is one of the key issues in slope stability analysis,and to construct a slip surface with a complex shape is quite challenging.The curve based on the integral of a Logistic function or other basis functions can take the place of the traditional slip surface generated using non-circular curves,which not only improves the smoothness of the slip surface but reduces its degree of freedom.Slip surface generating methods based on basis functions are sorted out in this paper.They are divided into the superposition method of continuous functions and the integral operation method.The characteristics of the Logistic function and its integral are examined carefully,and the influence of different parameters on the curve shape is obtained to narrow parameter ranges.This provides a basis to reduce the degree of freedom of slip surfaces.And a method is presented to determine the initial parameter values of a given slip surface.The calculations of two slope examples show our method is tolerably good in slope stability analysis.关键词
边坡/滑动面/安全系数/Logistic曲线/自由度Key words
slope/slip surface/safety factor/Logistic curve/degree of freedom分类
土木建筑引用本文复制引用
介玉新,王杨强,周婷,谢琪..稳定分析中滑动面构造方法分析[J].水力发电学报,2024,43(7):73-84,12.基金项目
国家重点研发计划(2023YFC3011401) （2023YFC3011401）
国家自然科学基金项目(52108372) （52108372）
