京沈客运专线引入沈阳铁路枢纽桥梁工程过渡与防护设计

京沈客运专线引入沈阳铁路枢纽工程的引入通道和施工场地空间狭小,需跨越秦沈客运专线和多条普速铁路、河流、市政道路与管线等。通过科学、合理、严密地编制京沈客运专线引入沈阳铁路枢纽桥梁工程过渡与防护设计解决了桥梁特殊工点多、过渡方案复杂施工难度大;临近既有设备安全防护压力大、公铁立交桥改建交通疏解难;敏感点多、高程要求苛刻、相互干扰大;自动化沉降和变形监测秦沈客运专线标准高等诸多困难。保证了既有设备正常运营和安全,确定了经济合理的桥梁过渡与防护设计方案,使京沈客运专线在狭小空间成功引入沈阳铁路枢纽。

Transition and Protection Design of Bridge Project to Lead Beijing-Shenyang Dedicated Passenger Line into Shenyang Railway Junction

As the leading corridor and construction space of the Beijing-Shenyang dedicated passenger railway line leading into Shenyang railway junction is very narrow,the project needs to cross over Qinhuangdao- Shenyang dedicated passenger railway line,several normal speed railway lines,rivers,municipal roads and pipe lines. The precise,scientific and reasonable transition and protection design of bridge project leading Beijing-Shenyang dedicated passenger railway line into Shenyang railway junction has solved such problems as follows: so many special bridge structures,complicated transition options and construction difficulties; challenges in the protection of adjacent existing facilities,traffic organization in upgrading rail / road overpass; so many sensitive points,strict elevation requirement and interference;high standard of automatic subsidence and deformation monitoring required by Qinhuangdao- Shenyang dedicated passenger line and other difficulties. The design ensures normal operation and safety of the existing equipment and is proved reasonable and economical for bridge transition and protection and makes it possible to allow Beijing- Shenyang high-speed railway to be introduced successfully into Shenyang railway junction in such a small space.