焦柳线高路堤下沉病害分析与抢险措施研究

Research on the sinking disease and emergency measures of high embankment of Jiaozuo-Liuzhou railway

针对焦柳线高路堤下沉病害,通过现场地质调查与钻孔取样分析得出路基下沉的主要因素是降雨量,路基本体结构及其周边地质环境对边坡失稳起着决定因素。为保证行车安全,根据现场地质和工程条件,经分析采用坡脚打入钢轨桩、坡面钻孔注浆的抢险整治方案,有效地控制了路基下沉。该方案实践证明效果显著,可在类似既有线路基下沉抢险工程中得到应用推广。

Aiming at the sinking disease of high embankment of Jiaozuo-Liuzhou railway,rainfall is the main factor of roadbed subsidence through field geological survey and borehole sampling analysis,and the main structure of subgrade and its surrounding geological environment play a decisive role in slope instability.To ensure driving safety,based on geological and engineering conditions,the emergency treatment scheme of driving rail piles into the bottom of slope,drilling and grouting on the surface of slope can effectively control the subgrade sinking through analysis.The scheme has been proved to be effective in practice and can be applied to similar subgrade sinking rescue projects.