深基坑支护工程中的地下水防治问题研究

Research on Prevention and Cure of Ground Water in the Supporting Engineering of Deep Foundation Pit

地下水防治在深基坑工程中是一项事关全局的工作,是导致工程事故最直接的因素之一,针对当前地下水防治中存在的主要问题,从正反两个方面列举了两个工程实例,①对南京人民商场改建一期工程基坑止水工程防渗结构失效原因进行了分析;②苏州商品交易市场塔楼基坑降水方案的成功之处进行了经验总结。最后,作者对深基坑降水工程存在的一些主要问题,在工程进行中的不同阶段,提出了几点预防措施。

In the engineering of deep foundation pit,prevention and cure of ground water is a work related to the overall situa-tion,and the one of direct factors lead on to the engineering accident.Aim at the main problems in the prevention and cure of ground water at present ,2engineering examples from both positive and negative were enumerated:①reason analyses on antiseep-age structure lose efficacy of stop-water engineering in foundation pit of first stage reconstruct engineering of Nanjing People Mar-ket;②experience summation on success of foundation pit drawdown scheme in towering building of Suzhou Market.At last,the authors have submitted several preventive measures on some main problems in drawdown engineering of deep foundation pit.