弱透水粘性土的大面积深基坑分层降水

Lower Water Level by Strata for Large Deep Foundations with Weak Permeable Clay Soil

通过对上海越洋国际广场工程的实例,介绍弱透水粘性土大面积基坑分层降水的施工方法,提出基坑快速降水实施方案的选择要点,分析降水井管的布置、抽水手段、降水工艺及效果。

This paper introduces the method of lowering water level by strata for large deep foundations with weak permeable clay soil in Yueyang International Square project of Shanghai,presenting the main points of selecting the projects for implementing the quick lowering of water level in the foundations and analyzing the arrangement of the pipes, the means of pumping and technique and result of water-level lowering.