软土段路堤失稳原因分析及处治措施研究

Study on Cause Analysis and Treatment Measures of Embankment Instability in Soft Soil Section

近年来软土路基处置之后出现失稳现象的情况时有发生,对软基失稳原因进行分析,开展失稳风险评估,研究整改措施具有重要的意义。目前关于公路软土路基坡脚开挖引起路基失稳的研究较少,通过分析某软基失稳路段的勘察、设计和施工情况,并对该路段在施工时出现路基失稳的原因进行了分析,提出了处治措施,可为相似项目提供参考。

In recent years, the instability phenomenon of soft soil subgrade after disposal often occurs. It is of great significance to analyze the reasons for the instability of soft foundation, carry out the risk assessment of the instability, and study the rectification measures. At present, there are few studies on roadbed instability caused by slope excavation of highway soft soil roadbed. This paper analyzes the investigation, design and construction of a roadbed instability section with soft foundation, analyzes the causes of roadbed instability during construction, and puts forward treatment measures, which can provide reference for similar projects.