深基坑开挖中的降水设计问题

Dewatering and drainage design for deep foundation pit excavation

对位于沿海、沿江的大城市来说，深基坑开挖中的降水问题是一个很重要的问题。以往深基坑工程的失事，许多都与降水设计不当或不够重视有关。为此，本文在以往基坑降水研究的基础上，结合一些工程实例，对这个问题进行一些讨论。

Since many excavation failures were caused by the wrong or careless design in the past , it is important to make a suitable dewatering and drainage design with quantitative analyses for deep foundation pit excavation ,especially for the ones near a river or sea .Based on experience of dealing with groundwater , we make an analysis on some engineering cases and present a new design method .