Safety Evaluation of Earth Retaining Wall Using Structural Reliability
This paper presents a method for evaluating the safety of gravity earth retaining wall based on reliability analysis. An analysis model of gravity retaining wall is presented, and the reliability indices are calculated for several failure modes. The method of calculating system reliability of gravity retaining wall is derived. An existing earth retaining wall, which is a real project in Northwest China retrofitted by the author, is used as numerical example, and the safety is examined using reliability based on a first order second moment method with 4 serially connected failure mechanism considered. Recognizing that the original retaining wall was under poor safety condition, an improved design was proposed by the authors research group and a retrofit was conducted accordingly. The numerical result shows that the method proposed in this study is convenient for engineering application, and the result may act as a theoretical basis for the selection of retrofitting strategy of the retaining wall structure.
safety structural reliability earth retaining wall first order second moment method
DU Yongfeng YU Yu
Western Engineering Center for Disaster Mitigation in Civil Engineering,Ministry of Education,Lanzho Institute of Earthquake Protection and Disaster Mitigation,Lanzhou University of Technology,Lanzhou
国际会议
The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)
北京
英文
276-281
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）