大型沉井不排水下沉施工技术

The Technique of Sunk Well without Bailing in Large-scale Construction

沉井法施工在市政工程中应用广泛,而不排水吸砂沉井是指下沉过程中,井内外均不降水,水中挖土带水下沉,在水下封底的一种施工工艺。本文结合福州东南水厂进水泵房的工程实例,介绍不排水吸砂下沉工艺。

Sunk well method in construction is a widely used method in municipal engineering. Sunk well without bailing refers to a construction technique of settlement of earth excavation in the water and sealing of the tremie, while during this process, there is no precipitation in and out of the well. This paper will introduce the technique used in the settlement of sunk well without bailing, using the example of pump compartment of Fuzhou Southeastern Water Treatment Plant.