地铁隧道近距离下穿污水管线施工技术

Close subway tunnel beneath the sewage pipeline construction technology

以北京地铁八号线出入段线区间暗挖隧道近距离下穿污水管道施工为例,介绍了具体的施工方案,从施工准备及隧道下穿施工两方面阐述了方案的实施方法,并对隧道下穿管道沉降数据进行了监测,指出各数据处于控制范围内,管线变形微小,达到了预期目标。

Taking the close subway beneath sewage pipeline construction along underground excavation tunnel along the entry-exit section of No. 8 subway in Beijing as the example, the paper introduces the factual construction scheme, illustrates the implementation methods for the scheme from the construction preparation and tunnel undercrossing construction, supervises the settlement data for the tunnel beneath pipeline, and points out the data are controlled within the scope with slight deformation at pipelines, so the expected aims are achieved.