富水砂卵石地层深基坑降水在高层建筑施工中的应用

Application of Deep Foundation Pit Dewatering in Water-rich Sandy Cobble Stratum in High-rise Building Construction

在富水砂卵石地层的深基坑降水期间,特殊的地质条件致使其在地下水位较低的情况下往往存在着较大的困难,严重制约了工程安全和施工进度。文章以某高层项目作为研究对象,在充分考虑到工程实际情况的基础上,结合国家有关标准及建设需要,着重探讨了在富水砂卵石地层环境下,采用地下降水及排水体系的设计思路及相应的施工组织方法,以确保在工程排水期间其施工的安全稳定性以及施工进度的可控性目标。

During the dewatering of deep foundation pit in water rich sandy gravel stratum,its special geological conditions often lead to great difficulties in the case of low groundwater level,which seriously restricts the engineering safety and construction progress.Taking a high-rise project as the research object,on the basis of fully considering the actual situation of the project,combined with the relevant national standards and construction needs,this paper mainly discusses the design idea and corresponding construction organization method of underground precipitation and drainage system in the environment of water rich sandy gravel stratum,so as to ensure the safety and stability of the construction during the drainage period and the controllable goal of the construction schedule.