| 基于浅层地下水回灌的基坑工程沉降防治分析与计算 |
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| 引用本文： | 瞿成松,王金生,朱悦铭,黄雨.基于浅层地下水回灌的基坑工程沉降防治分析与计算[J].水文地质工程地质,2012,39(6):62-66. |
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| 作者姓名： | 瞿成松 王金生 朱悦铭 黄雨 |
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| 作者单位： | 北京师范大学水科学研究院，北京 100875；地下水污染控制与修复教育部工程研究中心，北京 100875；上海长凯岩土工程有限公司，上海 200070；同济大学岩土及地下工程教育部重点试验室，上海 200092 |
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| 基金项目： | 上海市科学技术委员会资助项目 |
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| 摘 要： | 采用下负荷面剑桥模型，联合渗流方程，建立土-水完全耦合平衡方程计算模型，探讨浅层地下水人工回灌在基坑工程降水过程中抑制基坑周边地面沉降的作用，并以邻近上海地铁一号线的淮海中路3号地块基坑降水为例，对基坑工程实测沉降和回弹数据进行数值拟合，理论结果与实际数据吻合。本方法对基坑工程地下水回灌防止地面沉降有一定参考指导作用。
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| 关 键 词： | 土-水完全耦合模型 浅层地下水回灌 数值模拟 沉降分析 |
Analysis and Calculation of subsidence of foundation engineering based on shallow groundwater injiection |
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| QU Cheng-song
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WANG Jin-sheng
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ZHU Yue-ming
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HUANG Yu.Analysis and Calculation of subsidence of foundation engineering based on shallow groundwater injiection[J].Hydrogeology and Engineering Geology,2012,39(6):62-66. |
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| Authors: | QU Cheng-song WANG Jin-sheng ZHU Yue-ming HUANG Yu |
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| Institution: | College of Water Sciences, Beijing Normal University, Beijing 100875, China; Engineering Research Center for Groundwater Pollution Control and Remediation, Ministry of Education of China, Beijing 100875, China; Shanghai Changkai Geotechnical Co., Ltd, Shanghai 200070, China; Department of Geotechnical Engineering, Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai 200092, China |
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| Abstract: | The function of shallow groundwater injection to control the subsidence of the foundation pit is investigated to adopt sub loading cam clay model associating with the flow equations. For example, the subsidence or rebound data due to the dewatering and excavation of the Huaihai Middle Road No.3 site foundation pit close to Shanghai Metro Line No.1 are simulated with the soil groundwater fully coupled calculated model. The calculated results are similar with the actual data and can reflect the strain subsidence behaviors of foundation pit excavation and dewatering. The method is used as reference for groundwater injection of foundation pit construction to reduce subsidence. |
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