铁路路基沉降段轨道整治方案研究

Research on the track improvement scheme of the subgrade section of railway subgrade

通过对某铁路路基沉降现象的现场调查,发现是由下方曾进行过水利工程的顶管作业所造成。经研究拟定了调线调坡、扣件调整、整体道床重构、枕间增设承轨台和注浆抬升5种方案,通过对每种方案的详细论证,最后确定整体道床拆除重建方案。该方案整治效果相对较好,外形美观,养护维修工作量小、作业环境好。从目前现场已在实施该方案的情况来看,该方案对铁路路基沉降加固是成功的。

Through the on-site investigation of the subsidence phenomenon of a railway subgrade,it is found that it is caused by the top pipe operation of the water conservancy project below.After research,five plans have been formulated:line adjustment,fastener adjustment,overall roadbed reconstruction,pillow additional rail platform and grouting lifting.Through detailed demonstration of each scheme,the overall roadbed demolition and reconstruction plan is finally determined.The rectification effect of this scheme is relatively good,the appearance is beautiful,the maintenance workload is small,and the operating environment is good.Judging from the current implementation of the program on site,this plan has been successful in strengthening the settlement and reinforcement of railway subgrades.