广州地铁某联络通道在软弱地层中的施工措施

Costruction Measures in Weak Strata in Guangzhou Metro of a Connected Aisle

联络通道作为盾构附属工程,一般在盾构通过后、隧道贯通前与盾构隧道同时施工。当联络通道在软弱地层中施工时,其施工安全性不仅与通道本身能否顺利施工有关,还关系到整个隧道的施工安全。如处理不当,会影响盾构施工的正常进行,甚至威胁已建成的盾构隧道的安全。因此,在软弱地层中施工联络通道,是盾构地铁施工中的难点之一,本文通过介绍广州地铁某联络通道在软弱地层施工的实例,为类似工程提供参考。

Connested aisle is one of subsidiary project of shield structure.It is under construction after shield machine passed and at the same time with shield structure tunnel.While the connested aisle is in weak stratum,its security being under construction is connected with self passage being able to be under construction smoothly or not only,the construction being related to the entire tunnel is safe.Be in progress if being not handled properly,being able to affect shield structure construction＇ s is regular,safety threatening the shield structure tunnel already establishing even.So,construction contacts aisle in weak srtatum is one point of the difficults in subsay construction.This article introduced by a connected aisle in guangzhou metro the weak strata in the construction of similar project for instance,provides reference.