困难地段旧桥改建施工方案设计与实施  

Design and implementation of construction scheme of old bridge rehabilitation in difficult sections

作　　者：乔国峰 

机构地区：[1]中铁六局太原铁路建设有限公司,山西太原030013

出　　处：《铁路工程造价管理》2007年第3期51-55,共5页Railway Engineering Cost Management

摘　　要：介绍忻口站旧桥改建施工在施工场地狭窄、接触网影响的条件下,为确保运营和行车安全,排除便线施工方案,采用D型便梁加固线路,人工横移旧梁,静态爆破拆除既有桥墩,顶进框构的施工方案,保证了该工程的顺利实施,为类似工程积累了施工经验。This article introduces that the construction of the old bridge rehabilitation at Xinkou station, under the condition of narrow construction site and being influenced by the catenery, in order to ensure the safety of train operation, the temporary road scheme is dropped and instead the D - shaped auxiliary girders are employed to strengthen the line. The old beams are laterally removed manually, bridge piers are demolished by static blasting, and the construction scheme of jacking -in the framed structure is adopted to ensure the smooth implementation of this project, accumulating construction experience for similar works in the future.

关 键 词：D型便梁 横移 静态爆破 

分 类 号：U449.5[建筑科学—桥梁与隧道工程]