地铁通道下穿污水管道施工技术

Construction Technology of Subway Under-passing Sewage Pipes

结合西安地铁一号线汉城路站Ⅲ、Ⅳ号通道采用暗挖法下穿DN1800雨污水管道工程实例,详细介绍双侧壁导坑法下穿污水管道施工方法,着重阐述了大管棚注浆加固措施,并对暗挖通道过污水管沟的施工工艺、施工工法进行了论述,以便为今后类似工程施工提供参考。

From the construction example of Line One of Xi＇an Subway Hancheng Station Ⅲ and Ⅳalleyways under-passing DN1800-type rainwater-sewage pipe,the paper introduces in detail ＂twin-side heading method＂ of subway under-passing sewage pipes with emphasis on the pipe roof reinforcement.It elaborates the construction technology and construction method of under-passing construction,which can serve as references for similar works.