摘要
基于某典型高路堤边坡,建立有限元强度折减模型;采用正交试验法对各定量影响参数进行敏感性分析,为高路堤边坡快速评价模型参数权重取值提供理论依据,得到各主要因素排序为:填方高度>黏聚力>重度>坡率>内摩擦角>卸载平台宽度>台阶高度。初步建立高路堤边坡快速评价模型中各评价参数的权重值、分级评分标准和最终评价标准。快速评价模型对边坡稳定性的评价结果与安全系数法的评价结果具有较好的一致性。
The finite element strength reduction model has been established based on a typical high embankment slope. Orthogonal test method has been used to analyze the sensitivity of the quantitative influencing parameters,which provides a theoretical basis for the parameter weight value of the rapid evaluation model of high embankment slope. The sequences of the main factors are as follows: filling height > cohesion > weight > slope rate > internal friction Angle > unloading platform width > step height. The weight value, grading standard and final evaluation standard of each evaluation parameter in the rapid evaluation model of high embankment slope are established preliminarily. The results of rapid evaluation model for slope stability are in good agreement with those of safety factor method.
作者
朱冬林
耿星月
ZHU Donglin;GENG Xingyue(CCCC Second Highway Consultants Co.,Ltd.,Wuhan 430062,China;School of Resources and Safety Engineering,Wuhan Institute of Technology,Wuhan 430062,China)
出处
《路基工程》
2022年第5期35-41,共7页
Subgrade Engineering
基金
国家自然科学基金项目(51804222)。
关键词
高路堤边坡
强度折减
影响因素
正交试验
敏感性分析
high embankment slope
strength reduction
influencing factors
orthogonal test
sensitivity analysis
