复杂地层中分期施工并敞开降水的深基坑工程

Deep pits excavated by stages and dewatered openly under complex geological condition

介绍了采用密排排桩作为挡土墙,结合基坑内外大面积降水而不设止水帷幕的深基坑工程实例,由于场地地质情况复杂,基坑分成多期施工。本文对该工程的设计、施工和监测等各方面进行了细致的分析,得出了一些分期施工以及在粉砂土地区大面积降水的工程经验。

Line-up piles were used as the retaining wall of a deep excavation. Due to the complexity of geology, the pit was excavated by stages and dewatering without cut-off walls. The process of design, construction and monitoring data of the case was presented. Some useful conclusions were drawn.