盾构穿越铁路营业线的变形控制施工技术

Deformation Control Construction Technology of Shield Passing Through Railway Business Line

结合徐州城市轨道交通2号线一期工程周七区间隧道工程,对富水复合地层中盾构始发穿越既有铁路营业线的变形控制技术进行了研究。通过研究解决了富水上软下硬复合地层中盾构始发穿越既有铁路的变形控制难题,为后续同类型工程提供了参考。

Combined with the Zhouqi section tunnel project of Xuzhou Urban Rail Transit Line 2 phase I project,the deformation control technology of shield original passing through the existing railway business line in water rich composite stratum is studied.Through the research,the problem of deformation control of shield original passing through the existing railway in soft and hard composite stratum above rich water is solved,which provides a reference for subsequent similar projects.