高路堤边坡快速综合评价模型研究

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。

Research on Rapid Comprehensive Evaluation Model of High Embankment Slope

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.