在基坑与已存在管路相交的情况下,由于管路往往伴路而行,为保证道路通行,需进行翻交,并同时考虑管路的临迁或保护施工,相应处理翻交、基坑围护、管路临时支托、基坑开挖与结构施工,以及最后的管路恢复等问题。由于涉及到工程的规划、设计、权属单位、施工等各个环节,并与多种专项工艺相关,本文结合一个有一定代表性的案例,以原位保护方案为主,给出相应的处理要点,并系统介绍相关工艺,为类似工作提供参考。 In the case of the intersection of the foundation pit and the existing pipelines, the pipelines are often companion roads. In order to ensure the passage of roads, the pipelines shall be turned over and the pipelines are to be temporarily relocated or protected, Pit enclosure, temporary support of the pipeline, excavation and structure construction of foundation pit, and finally the restoration of pipelines. As it involves all aspects of project planning, design, ownership, construction and other special processes, this article combines a representative case to focus on in situ protection programs, and gives the corresponding treatment points , And systematically introduces the related process, providing reference for similar work.