基于正交设计的滞洪区路堤边坡敏感性研究

Research on Sensitivity of Embankment Slope in Flood Detention Area Based on Orthogonal Design

以天津市某滞洪区范围内高速公路路堤边坡为例,利用Midas GTS有限元软件模拟计算路堤边坡稳定性,对滞洪区路堤边坡水位变化情况进行逐一计算分析。采用正交设计试验方法分析比较洪水位降幅、水位降速和路堤填土渗透系数等因素对路堤稳定性影响的敏感性,为滞洪区内公路路堤工程提供了有益参考。

Taking an expressway embankment slope in a flood detention area in Tianjin as an example,Midas GTS finite element software is used to simulate and calculate the stability of embankment slope,and to calculate and analyze the water level changes of the embankment slope in the flood detention area one by one.The orthogonal design test method is used to analyze and compare the sensitivity of influences such as flood level drop range,water level drop speed and embankment filling permeability coefficient on embankment stability,which provides a useful reference for highway embankment projects in flood detention areas.