基于上海地区某深大基坑工程抽水试验分析

Pumping Test Analysis Based on a Deep Foundation Pit Engineering in Shanghai

随着城市建设的发展,深基坑工程规模的不断增大,承压水问题对深基坑工程的影响越来越大,群井抽水试验在基坑围护设计的作用越来越重要。论文结合上海某大型深基坑群井抽水试验工程,介绍了抽水试验的方案设计,并通过水位观测数据确定各个地块含水层之间的水力联系,利用数值软件确定承压含水层的水文参数,为深基坑工程的围护设计提供参考和指导。

With the increase of the size of deep excavation, confmed water problem of the influence of the deep foundation pit engineering is more and more big, pumping test is more and more important in foundation pit design. Combined with a pumping of the foundation pit engineering in Shanghai, This paper introduces the method to obtain hydro-geological of the single well test and the group well test. Determining the hydraulic connection of aquiclude and aquifer, and use software to build three-dimensional seepage model, predicting the influence of the pumping on the surrounding environment, and valued for the design of this projects.