公路路基边坡破坏过程和治理方案研究

Study on the Failure Process and Treatluent Scheme of Highway Subgrade Slope

针对强降雨条件下某公路路基出现边坡沉降、局部滑塌等问题,通过分析滑塌机理,给出引发边坡发生沉降、滑塌的诱因,为边坡治理提供理论依据。根据不同降雨历时与边坡稳定性安全系数的关系,讨论了边坡破坏过程,进一步判断了边坡失稳阶段,提出了基于滑塌诱因及失稳阶段的路基边坡综合防治方案,并进行了经济技术对比,对于类似路基边坡失稳防治有一定参考价值。

In view of the slop subsidence and local collaplse of the roadbed of a highway under the condition of heavy rainfall,through the analysis of slope sliding mechanism,the causes of subsidence and collapse of the roadbed were discussed,so as to provide theoretical basis for the slop goverance.According to the relationship between the different rainfall duration and the safety coefficienee of slope stability,the slope destruction process was analyzed,the slope instability stage was further determined,and the integrated governanee scheme based on the causes of slope sliding and instability stage was proposed,besides that,the technical economic comparison of the governance scheme was done,so as to provide reliable refere nee for the treatment of slope in stability of the roadbed.