上海地区第三硬土层间粉土夹层抽水沉降效应分析  

Analysis on the Pumping Settlement Effect of the Silty Soil Interlayer in the Third Hard Soil Layer in Shanghai

作　　者：瞿成松 徐丹 雷丹 QU Cheng-song;XU Dan;LEI Dan(Shanghai Changkai Geotechnical Engineering Co.,I.td.,Shanghai 200093,China;SGIDI Engineering Consulting（Group）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 [2]上海勘察设计研究院〈集团〉有限公司,上海200093

出　　处：《探矿工程（岩土钻掘工程）》2018年第9期75-79,共5页Exploration Engineering:Rock & Soil Drilling and Tunneling

基　　金：上海张江国家自主创新示范区专项发展资金重点项目"基于城市更新的既有建筑地下结构加固与地下空间增层关键技术示范应用与推广"(编号:201705-YP-C2090-037)

摘　　要：现场对上海第三硬土层间粉土夹层即第(10)夹层承压含水层实施抽水试验,对水位、地表沉降及深层沉降进行观测,采用三维渗流及比奥固结理论模拟,分析了深层承压水抽水过程中的地层垂向变形与地下水水位变化之间的关系,为超深基坑地下水控制提供了依据。Pumping test is carried out in the silty soil interlayer in the third hard soil layer in Shanghai, that is, 10th layer of confined aquifer. The water level, surface settlement and deep layer settlement are observed. 3 dimensional seepage and Blot＇s consolidation theory simulation are used to analyze the relationship between the vertical deforma tion of the stratum and the change of the groundwater table during the deep confined water pumping process, which provide the basis for groundwater control in ultra deep foundation pit.

关 键 词：第三硬土层 抽水试验 地面沉降 深层沉降 比奥固结理论模拟 上海地区 

分 类 号：TU463[建筑科学—结构工程]