喀斯特地貌高桥台台背回填地下水的处理措施

Treatment Measures of Groundwater in Abutment Backfill of Karst Strata

近几年随着高速公路建设的快速发展,对台背回填的施工要求也越来越高。台背回填工作是一项作业面小、工序繁杂且又十分关键的工作,其回填质量的好坏直接影响桥台的稳定性和行车的舒适性。要消除桥头跳车通病,其关键就在于确保台背回填质量。主要针对黑山南北高速MORACICA大桥台背回填施工中遇到的困难,着重对喀斯特地貌下高桥台台背回填施工中地下水的处理措施进行分析总结,为该类台背回填施工提供借鉴。

With the rapid development of expressway construction in recent years,the construction requirements for backfill of the abutment are also getting higher and higher.The abutment backfill work is featured with small work surface,complicated procedures but very critical,the quality of the backfill directly affects the stability of the abutment and the comfort of driving,and the essential to eliminate the common problems of car bouncing at bridge ends is to ensure the backfill quality of the abutment.In the paper,from the perspectives of the difficulties that encountered and the methods of problem solving in the construction of abutment backfill for the Moracica Bridge,the treatment of groundwater in the construction for abutment backfill under karst strata is analyzed and concluded,which can provide reference for this kind of abutment backfill construction.