紧邻运营铁路线深基坑开挖及边坡支护施工  

Excavation of Deep Foundation Pit Close to Operation Line and Slope Retaining Construction

作　　者：杨自政[1] 

机构地区：[1]中铁十二局集团第三工程有限公司,山西030024

出　　处：《高速铁路技术》2011年第3期65-68,共4页High Speed Railway Technology

摘　　要：文章结合新建京石客运专线石家庄滹沱河特大桥跨京广铁路柳辛庄车站的实例,从工程实践出发,经过施工方案对比研究,选定了确保既有运营铁路安全的方案。通过受力计算,验算了方案的可靠安全性,又详尽叙述了挖防护桩的施工及注意事项和承台的施工工艺,并在施工过程中连续观测支护变化,得出了最终变形数据。Based on the practice of Shijiazhuang Hutuohe Bridge which crosses Luixinzhuang Station on the newly-built Beijing-Shijiazhuang passenger dedicated line and proceeding from objective reality,after a comparison of construction scheme,programs were established to ensure the safety of railway operations.Moreover,reliable security solution was verified by force calculation,detailed description of construction of digging protective piles,notes,and construction technology of bearing platform,and supporting change was continuously observed in the construction process,so that the final deformation data was obtained.This paper may provide reference for similar works in the future about deep excavation and construction of slope protection close to an operational railway line.

关 键 词：深基坑开挖 边坡支护 安全 施工 

分 类 号：U215.7[交通运输工程—道路与铁道工程]