淤泥层深基坑开挖与降排水施工研究

Research on Excavation and Drainage Construction of Deep Foundation Pit in Muddy Layer

在淤泥层地区进行基坑开挖时,会遇到淤泥层的特殊性质和高含水量的挑战。这些问题给基坑开挖和降水施工带来了一定的困难和风险,因此需要深入研究相关问题,以提升施工的效率和安全性。文章依托于某大型基坑施工工程,以降低工程造价和缩短施工周期为目的,简要阐述了建设项目现场地形地貌、水文地质和周边环境等条件,优化了传统基坑降排水井结构,提出了疏干兼作降压井,可以同时满足降排水要求,并且有利于降低基坑施工成本和缩短周期,以期为相关人员提供参考。

When excavating the foundation pit in the mud layer area,the special properties of the mud layer and the challenge of high water content will be encountered.These problems have brought certain difficulties and risks to the foundation pit excavation and dewatering construction,so it is necessary to further study the related problems in order to improve the efficiency and safety of construction.Based on a large-scale foundation pit construction project,in order to reduce the project cost and shorten the construction period,this paper briefly describes the construction project site topography,hydrogeology and surrounding environment and other conditions,optimizes the traditional foundation pit dewatering and drainage well structure,and puts forward that dewatering can also be used as a step-down well,which can meet the requirements of dewatering and drainage at the same time,and is conducive to reducing the construction cost and period of foundation pit,so as to provide reference for relevant personnel.