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在海边等地下水发育丰富的地区,污水提升泵房地下构筑物的沉井封底比较困难,以烟台市区河污水提升泵房二期工程地下构筑物封底为例,介绍了污水提升泵房沉井封底过程中,由于受地质条件的影响,施工降水达不到无水封底的要求,而采用的一种新的封底施工方法——盲板封底法。详细介绍了盲板封底的施工流程及盲板、渗水管的加工制作过程,为类似工程施工提供参考。
In areas with rich groundwater such as the seaside, it is more difficult for the sewage to lift the caisson shaft of the underground structures of the pumping station. Taking the back cover of the underground structure of the pumping station Phase II of Yantai Urban District as an example, , Due to the influence of geological conditions, the construction of the rainfall less than the requirements of anhydrous back cover, and the use of a new back cover construction method - blind back cover method. The construction process of blind back cover and the process of blind plate and seepage pipe are introduced in detail, which can provide references for similar projects.