浅议地铁近距离上部穿越运营隧道施工技术

以上海市轨道交通10号线隧道上部穿越运营隧道1号线工程为研究对象,对该穿越段的工作难点、施工措施、实际施工情况等,进行了说明及讨论.主要通过穿越前、穿越中、穿越后3阶段控制隧道穿越工作的实施,保证了被穿越隧道及上部建筑物的沉降变形在安全可控的范围内.通过探讨本穿越段的施工,对以后不断出现的轨道交通上部穿越施工项目提供了一定的参考.

Discussion on the construction technology of the subway crossing the close-upper perating tunnel

This paper mainly forcuses on the construction technology of the Shanghai Metro Line 10 which is to cross the upper operating Shanghai Metro line 1. The difficulties of the crossing section, construction measures and actual construction conditions are described and discussed. Acturally, this paper is mainly talking about how to control the implementation of the tunnel through work through the three stages of crossing tunnel, namely pre - crossing, in - crossing and post - crossing, ensuring the settlement deformation of the through tunnel and its upper part of the buildings in safe and controllable range. It is through the discussion of the crossing construction to provide a certain reference value to the upper part crossing of future trail traffic.