改性粉土路堤稳定性影响因素敏感性分析  

Sensitivity Analysis of Stability Factors of Modified Silty Soil Embankment

作　　者：何敏 耿海东 范立鹏 王艳芳 He Min;Geng Haidong;Fan Lipeng;Wang Yanfang(Beijing Municipal Construction Group Ltd.,Beijing 100176,China;Jinling Institute of Technology,Nanjing 210069,China)

机构地区：[1]北京市政建设集团有限责任公司,北京100176 [2]金陵科技学院,江苏南京210069

出　　处：《市政技术》2023年第6期20-25,共6页Journal of Municipal Technology

基　　金：国家自然科学基金青年科学基金项目(51908278);高水位淮河河漫滩沉积地层低填路基施工关键技术(横向课题)。

摘　　要：以新建怀远—凤台高速公路路堤为分析对象,采用GEO5软件进行了路堤模型建立以及参数选取,对考虑地下水位、交通荷载、降雨强度工况耦合下改性粉土路堤边坡稳定性进行了分析。通过SPSSAU分析软件设计正交试验,对试验结果进行了极差分析,得出了改性粉土路堤稳定性影响因素敏感性从大到小依次为交通荷载、地下水位、降雨强度的结论,为路堤工程稳定性分析以及工程设计提供了参考依据。Taking the embankment of the newly built Huaiyuan-Fengtai Expressway as the analysis object,GEO5 software was used to establish the embankment model and select the parameters.Under the coupling of groundwater level,traffic load and rainfall intensity,the stability of the modified silt embankment slope was analyzed.The orthogonal test is designed by SPSSAU analysis software.The range analysis of the test results is carried out.It is concluded that the sensitivity of the stability factors of the modified silt embankment in descending order is traffic load,groundwater level and rainfall intensity,which provides a reference for the stability analysis and engineering design of embankment engineering.

关 键 词：路堤 稳定性 改性粉土 正交试验 敏感性 影响因素 

分 类 号：U432[交通运输工程—道路与铁道工程]