| 深基坑工程引起的地面沉降研究 |
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| 引用本文： | 卢俊义,王成军,董光辉. 深基坑工程引起的地面沉降研究[J]. 低温建筑技术, 2009, 31(5): 84-86 |
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| 作者姓名： | 卢俊义 王成军 董光辉 |
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| 作者单位： | 同济大学岩土及地下工程教育部重点实验室,上海,200092;同济大学地下建筑与工程系,上海,200091;山东省交通规划设计院,山东,济南,250031 |
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| 摘 要： | 监测数据表明，深基坑会引起周围土体的地面沉降。以上海世博500kV地下变电站基坑工程为背景，运用FLAC^3D软件，建立三维数值分析模型模拟基坑降水与开挖过程，计算结果与监测数据基本吻合。讨论了土体弹性模量、墙体刚度、土体渗透系数对墙后地面沉降的影响。研究表明，土体弹性模量增大，墙后地面沉降量增大，而连续墙刚度和渗透系数对上海世博500kV地下变电站基坑周围地面沉降的影响小。
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| 关 键 词： | 深基坑 地面沉降 监测数据 FLAC3D |
RESEARCH ON THE GROUND SETTLEMENT INDUCED BY DEEP EXCAVATION |
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| LU Jun-yi,WANG Cheng-jun,DONG Guang-hui. RESEARCH ON THE GROUND SETTLEMENT INDUCED BY DEEP EXCAVATION[J]. Low Temperature Architecture Technology, 2009, 31(5): 84-86 |
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| Authors: | LU Jun-yi WANG Cheng-jun DONG Guang-hui |
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| Affiliation: | 1.Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education;Shanghai 200092;2.Department of Geotechnical Engineering;Tongji University;China;3.Shandong Traffic and Plan Design Institute;Jinan 250031;China |
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| Abstract: | It was shown by the monitoring data that deep excavation could induce peripheral ground settlement.According to the practice of deep excavation of the underground transformer substation for the world exposition of shanghai 2010,FLAC3D was employed to establish a numerical model to simulate the deep excavation.The results were in good agreement with the field test data.Then,effects of soil's elastic modulus,permeability coefficient and the wall's stiffness to the land subsidence were analyzed and presented.I... |
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| Keywords: | FLAC3D. |
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