| 隧道断层开挖引起的地下水系统变化分析 |
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| 作者姓名： | Jung-Wook Park Chung-In Lee |
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| 作者单位： | 首尔国立大学土木、城市与地质工程学院 |
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| 基金项目： | 韩国建筑及运输部建筑及运输科技评估和规划协会基金项目(04-C01) |
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| 摘 要： | 在岩层中开挖隧道时以及开挖后,地下水会倒灌进隧道中.利用SEEP/W程序,对倒灌进隧道的地下水的水量及水位变化进行了二维有限元分析.研究对象是位于韩国Gyeongnam市Cheonseong山区的Wonhyo隧道,隧道模型范围内既有湿地,也有断裂带,选取了隧道沿途的4个典型区域进行研究.通过DFN模型计算了岩层中的导水...
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| 关 键 词： | 环境影响评价 韩国高速列车 二维有限元分析 离散裂隙网络模型 |
Analysis of the Change in Groundwater System with Tunnel Excavation in Discontinuous Rock Mass |
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| Jung-Wook Park,Chung-In Lee.Analysis of the Change in Groundwater System with Tunnel Excavation in Discontinuous Rock Mass[J].Journal of Chongqing Jiaotong University,2011(Z2):1073-1079. |
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| Authors: | Jung-Wook Park Chung-In Lee |
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| Institution: | (School of Civil,Urban & Geosystem Engineering,Seoul National University,Seoul,Korea) |
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| Abstract: | In this study,a 2-D finite-element analysis,using the SEEP/W program,was carried out to estimate the amount of groundwater flowing into a tunnel,as well as the groundwater tables around wetland areas during and after tunnel excavation through rock mass.Four sites along the Wonhyo-tunnel in Cheonseong Mountain(Gyeongnam,Korea) were analysed,where the model domain of the tunnel included both wetland and fault zones.The anisotropy of the hydraulic conductivities of the rock mass was calculated using the DFN model,which was then used as an input parameter into the continuum model.Parametric studies were performed on the influencing factors to minimize uncertainties in the hydraulic properties.Moreover,the volumetric water content and hydraulic conductivity functions were applied to the model to reflect the ability of a medium to store and transport water under both saturated and unsaturated conditions. |
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| Keywords: | environment impact assessment KTX(Korea Train Express) salamander lawsuit 2-D finite element discrete fracture network model |
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