盾构法施工“侧始发”方案研究及设计

Research and design of "side launching" scheme for shield construction

盾构法施工具有施工速度快、对环境影响小等优点,是当前地铁区间施工的首选方法。盾构法施工时,盾构机的始发或接收是关键;在采用盖挖法或浅埋暗挖法施工的车站工程中,如何实现盾构法始发或接收是区间施工亟待解决的问题。文章以实际工程为依托,通过对多种盾构“侧始发”方案进行对比分析,得出适用于某工程的“侧始发”方案,可以为后续无车站端头井地铁区间工程的盾构机始发或接收提供参考借鉴。

The shield method has the advantages of fast construction speed and small environmental impact,which is the preferred method for the construction of metro sections.The shield machine launching or arrival is a key process during the construction under shield method.In a station constructed under cover-cut method or shallow mining method,how to realize the shield method launching or arrival is an urgent problem to be solved in the interval construction.Based on the actual project,this paper compares and analyzes a variety of shield "side launching" schemes and finds the "side launching" scheme applicable to a certain project,which will provide reference for the launching or arrival of shield machine for the subsequent metro section project without station end well.