本文通过结合工程实例分析,介绍在密集建筑区深基坑施工中管井井点降水的井点布置原则及其施工方法,总结归纳了一些经验并提出值得注意的问题,为同类工程提供参考。 Based on the analysis of engineering cases, this paper introduces the principle and construction method of well point dewatering in tube well dewatering in deep foundation pit construction in densely-built area, summarizes some experiences and puts forward some notable problems, and provides reference for similar projects.