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

摘要:

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。

Abstract:

From the acceleration response spectrum, combined with the main synthetic methods of artificial seismic wave at home and abroad, by fitting, comparison and analysis of the software, the influences of some parameters on the fitting results are studied and discussed, and the artificial seismic waves are generated which fit well with the standard response spectrum of Chinese building seismic codes, and also used in the elastic dynamic time-historical analysis of many actual tunnel and utility tunnel projects in Suzhou. The analysis results of the examples show that the fitted artificial seismic wave is used for the time-historical analysis. The response results obtained have little deviation from those obtained by the reaction spectrum method and the natural wave analysis, which meet the requirements of the corresponding specifications on the time-historical analysis in China.