| 开采地下水地面沉降三维数值模拟分析 |
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| 引用本文： | 李云安,冯晓腊,黄振伟.开采地下水地面沉降三维数值模拟分析[J].水文地质工程地质,2003(Z1). |
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| 作者姓名： | 李云安 冯晓腊 黄振伟 |
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| 作者单位： | 中国地质大学工程学院土木工程系 武汉丰达地质工程有限公司 长江水利委员会第一勘测院 武汉 43074 丹江口市 |
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| 基金项目： | 国家自然科学基金项目(4037212)，中国博士后基金项目(B3277A)资助 |
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| 摘 要： | 根据汉口新业大厦水文地质与工程地质条件,建立开采地下水非稳定流定解问题三维数学模型,利用现有承压含水层非稳定流定解问题数值方案求解,重点讨论了源汇项的具体数学表达式。又简介根据达西定律和水均衡原理,建立了三维有限差分数值方程及其解法。根据土的有效应力原理和压密原理推导出了抽水沉降非线性压密方程,并研制了相应的三维有限元和有限差分计算程序。最后,对该环境岩土工程问题进行了分析和评价,计算结果与实测结果符合较好。
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| 关 键 词： | 开采地下水 地面沉降 三维数值模拟 环境岩土工程 非线性压密方程 |
Analysis on land subsidence induced by exploitation groundwater with three-dimensional numerical simulation |
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| LI Yu-an,FENG Xiao-la,HUANG Zhen-wei.Analysis on land subsidence induced by exploitation groundwater with three-dimensional numerical simulation[J].Hydrogeology and Engineering Geology,2003(Z1). |
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| Authors: | LI Yu-an FENG Xiao-la HUANG Zhen-wei |
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| Institution: | LI Yu-an~1,FENG Xiao-la~2,HUANG Zhen-wei~3 |
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| Abstract: | Three-dimensional mathematic model, which is about unsteady flow of groundwater exploitation, is built according to the conditions of hydrogeology and engineering geology of Xin Ye mansion in Hankou, the existed numerical equation of three-dimensional unsteady flow of confined aquifer is used to solve it, concrete numerical formulae of source-sink are emphatically discussed.It is briefly introduced that three-dimensional finite difference numerical equation is built according to Darcy's law and water equilibrium principle.Nonlinear compressive equation of land subsidence induced by groundwater exploitation is dervied from effective stress and compressive principle of soil,and corresponding calculation programs of three-dimensional finite element and finite difference are developed. Finally this environmental geotechnical problem is analyzed and evaluated by the program,the calculated result accords well with the surveyed. |
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| Keywords: | groundwater exploitation land subsidence three-dimensional numerical simulation environmental geotechnique nonlinear compressive equation |
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