敏感环境深基坑地下水控制技术研究  

Study on Groundwater Control Techniques for Deep Foundation Pit in Sensitive Environments

作　　者：殷立锋 YIN Lifeng(Shanghai Changkai Geotechnical Engineering Co.,Ltd.,Shanghai 200093,China)

机构地区：[1]上海长凯岩土工程有限公司,上海200093

出　　处：《建筑施工》2025年第4期625-628,633,共5页Building Construction

基　　金：上海市住房和城乡建设管理委员会科研项目(沪建科2022-003-001)。

摘　　要：上海作为我国经济中心,在城市轨道交通的建设方面不断增进和发展。但在建设过程中,经常涉及周边环境敏感的问题,且由施工引起的地面沉降也屡见不鲜。因此,以上海市轨道交通崇明线某盾构转换井为例,根据基坑施工工况,制定抽灌一体化方案,即在坑内布置减压井、坑外布置回灌井,采取坑内抽水、坑外加压回灌的抽灌一体化措施,进行地下水人工补给。该方案解决了由于坑外水位下降引起的地面沉降变形问题,实施效果良好,可为敏感环境深基坑地下水控制相关工程提供技术参考。As China's economic hub,Shanghai continues to advance the construction of urban rail transit systems.However,construction often impacts sensitive surrounding environments,with land subsidence frequently occurring.Using a shield transfer well on the Chongming Line of Shanghai Rail Transit as an example,an integrated pumping and recharging scheme is developed based on foundation pit construction conditions.Pressure relief wells are arranged within the pit,and recharge wells outside the pit,with measures implemented for groundwater pumping inside the pit and pressurized recharge outside.This approach effectively mitigates ground subsidence caused by the lowering of external water levels and delivers favorable results,providing technical references for groundwater control in deep foundation pits within sensitive environments.

关 键 词：敏感环境 地面沉降 轨道交通 深基坑 地下水控制 抽灌一体化 

分 类 号：TU753[建筑科学—建筑技术科学]