本文根据施工实践,较系统地介绍、分析了在南方多雨地区修建铁路复线桥台施工,顶进桥、涵施工、路堑和路堤施工的几个主要塌滑特性,并提出了相应的防范对策,实用可行,在南方多雨地区复线施工,对控制塌滑,确保既有线安全,带有普遍性意义。

Based o n the const ruction practices, sev eral main collapse and slide characteristics o n const ructio n o f bridge abutment , bridg e and culv ert jacking , a nd co nst ructio n of cut a nd emba nkment during railw ay construction of do uble t rack line in so uthern rainy regions are int roduced and analy zed systema tically in this paper. The cor responding protectiv e countermeasures a re propo sed also. They a re practicable a nd feasible, a nd hav e g eneral meaning to cont rol co llapse and slide and to guarantee safety of existing railw ay during the railw ay construction o n double t rack line in so uthern rainy regio ns.