| 深基坑降水流固耦合数值模拟及敏感性分析 |
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| 引用本文： | 程芸,冯晓腊,万里波.深基坑降水流固耦合数值模拟及敏感性分析[J].地下空间与工程学报,2011,7(6):1121-1127,1215. |
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| 作者姓名： | 程芸 冯晓腊 万里波 |
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| 作者单位： | 1. 云南省建筑科学研究院,昆明,650223
2. 中国地质大学(武汉),武汉,430071 |
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| 基金项目： | 武汉市建设委员会科研基金资助项目(200835) |
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| 摘 要： | 基于比奥固结理论,对武汉长江隧道基坑明挖段JB02节基坑降水工程进行了三维流固耦合数值模拟计算.综合分析了存在止水帷幕情况下的地下水渗流场规律,阐述了粘土层的释水固结特征.在合理的数值模拟计算的基础上,采用正交试验的方法,重点对渗透系数、变形模量、抽水量、井点深度、帷幕深度和井点布置等6大影响地面沉降的因素进行了敏感性...
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| 关 键 词： | 基坑降水 地面沉降 流固耦合 数值模拟 正交试验 |
Fluid-solid Coupling Calculation and Sensitivity Analysis of Dewatering in Deep Foundation Pit |
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| Cheng Yun,Feng Xiaola,Wan Libo.Fluid-solid Coupling Calculation and Sensitivity Analysis of Dewatering in Deep Foundation Pit[J].Chinese Journal of Underground Space and Engineering,2011,7(6):1121-1127,1215. |
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| Authors: | Cheng Yun Feng Xiaola Wan Libo |
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| Affiliation: | Cheng Yun1,Feng Xiaola2,Wan Libo1(1.Yunnan Institute of Building Research,Kunming 650223,China,2.China University of Geosciences,Wuhan 430071,China) |
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| Abstract: | Based on Biot consolidation theory,a 3-dimesional fluid-solid coupling calculation of dewatering in the deep foundation pit of Wuhan Yangtze River tunnel is done.The distribution law of groundwater seepage field,also,the pore water release and consolidation characteristics are comprehensively analyzed in case of the existence of waterproof curtain.On the basis of reasonable numerical calculation,sensitivity analysis is carried out by orthogonal design for 6 key factors: coefficient of permeability,deformati... |
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| Keywords: | foundation pit dewatering ground settlement fluid-solid coupling numerical simulation orthogonal design |
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