紧邻既有铁路干线桥墩及下部结构施工技术研究

The Technology Research of Bridge Piers and Infrastructure Construction Adjacent to Existing Railway

世纪东路跨线桥工程是以3跨简支梁分别跨越沪宁城际和京沪铁路,其中10#墩紧邻既有铁路干线,属于临近铁路营业线施工,施工条件复杂、施工难度大,一旦发生工程事故造成铁路运输中断产生的影响将不可估量,本文结合具体工程依次阐述了紧邻铁路干线桥梁从基础、基坑开挖到承台、墩柱、盖梁等部位关键施工技术及注意事项。

The engineering of Century east road flyover based on 3 cross beam across the Shanghai-Nanjing intercity and the Beijing-Shanghai railway, and 10# pier is adjacent to existing railway, which belongs to the nearby railway Yingyexian construction. The impact will be inestimable in the event of an accident leading to rail transport engineering interrupt, due to the complex conditions and difficulty construction. The key construction techniques and considerations of nearby railway bridges are expounded in this paper, combined with specific engineering, which is explained fromthe foundation, the excavation to cap beam, pier and cover.