Risk Study on Softsoil Subgrade Settlement and Embankment Jitter of Shenhai Expressway

摘要：

In the expressway construction on the coastal marine accumulation plains, thick softsoil layer and long softsoil section are unfavorable because they generally cause bad geologic problems such as subgrade settlement, difference settlement, embankment sidewise slip and collapse, and long settlement period, etc. This article explores risks and hazards of the softsoil subgrade settlement and the embankment jitter with Ningbo-Leqing section of Shenhai Expressway in Zhejiang Province for the case study. First, it identifies risk factors of the softsoil subgrade settlement and the embankment jitter based on the project type; then it classifies the risk probability class by the numerical values simulation and project analogy and distinguishes levels of risk consequences accordingly; finally, it offers an analysis on the softsoil subgrade settlement and the embankment jitter of the concerned expressway by R=P×C grading method on the basis of the numerical simulation results and the risk level matrix. Corresponding counter measures are proposed to help decrease the risk loss of the project.

关键词： softsoil subgrade settlement embankment jitter risk

作者: LI Jun LUO Chengcai XU Zhisheng LI Weiping

作者单位: School of Civil Engineering and Architecture, Central South University, Changsha, 410075, China Zhejiang Provincial Institute of Communications Planning, Design & Research, Hangzhou, 310006, China

会议类型: 国际会议

会议名称: The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)

会议地点: 杭州

会议语种:英文

页码: 2208-2214

在线出版日期: 2010-10-26（万方平台首次上网日期，不代表论文的发表时间）