地下构筑物不排水封底的新方法——开口吊罐施工法

A New Method of Seal Bottom of Underground Structure without Draining Off Water-No Cover Hoist Bucket

本文以松花江、嫩江汇合处沉井施工为例,介绍了高水位软土地基区域地下构筑物、建筑物不排水封底的施工方法——开口吊罐法。该法的特点是用开口吊罐实施水下不分散混凝土封底,简化施工,保证质量,降低造价。

Taking the construction of sink well at the joint of Songhua and Nenjiang rivers as sample, the article deals with a method of seal bottom of underground structure of building in soft ground of high water level without draining off water-no cover hoist bucket. This method has the follow- ing characteristics: Sealing bottow of underground structure with underwater concrete by no cover hoist bucket, simplirying construction、guaranteeing quality, and saving cost.