| 隔水边界附近围岩渗透性变化时隧道涌水的渗流模型 |
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| 引用本文： | 张美静,万力,王芳,王旭升,胡伏生.隔水边界附近围岩渗透性变化时隧道涌水的渗流模型[J].长江科学院院报,2008,25(5). |
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| 作者姓名： | 张美静 万力 王芳 王旭升 胡伏生 |
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| 作者单位： | 中国地质大学,水资源与环境学院,北京,100083;中国地质大学,水资源与环境学院,北京,100083;中国地质大学,水资源与环境学院,北京,100083;中国地质大学,水资源与环境学院,北京,100083;中国地质大学,水资源与环境学院,北京,100083 |
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| 基金项目： | 雅砻江水电开发联合研究基金 |
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| 摘 要： | 根据各向同性岩石中隔水边界与水平方向的夹角,在岩石渗透性随深度呈负指数衰减条件下,分两种情况给出了二维稳定流隧道涌水量的解析解和数值解.分别对隔水边界距离和隧道埋深对隧道涌水强度的影响,以及岩体中上下水位的巨大差异进行了理论分析.此法可用于预测隧道涌水量,并给出了算例及关系曲线.
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| 关 键 词： | 渗透性 埋深 边界 各向同性 隧道涌水 渗流 |
Seepage Model for Tunnel Water Inflow near Non-flow Boundary in Rock Aquifer with Changing Permeability in Depth |
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| ZHANG Mei-jing,WAN Li,WANG Fang,WANG Xu-sheng,HU Fu-sheng.Seepage Model for Tunnel Water Inflow near Non-flow Boundary in Rock Aquifer with Changing Permeability in Depth[J].Journal of Yangtze River Scientific Research Institute,2008,25(5). |
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| Authors: | ZHANG Mei-jing WAN Li WANG Fang WANG Xu-sheng HU Fu-sheng |
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| Institution: | ZHANG Mei-jing,WAN Li,WANG Fang,WANG Xu-sheng,HU Fu-sheng(School of Water Resources & Environment,China University of Geosciences,Beijing 100083,China) |
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| Abstract: | Analytic solution and numerical solution are obtained for predicting tunnel water inflows and water head under the condition of an exponential decrease of hydraulic conductivity with depth in an isotropic jointed rock mass.According to the angle between the horizontal ground and non-flow boundary,analytical solution and finite-element solution are presented respectively.Effects of tunnel depth and non-flow boundary distance on predicted water inflow are discussed. A theoretic analysis is conducted to the en... |
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| Keywords: | permeability depth boundary anisotropy tunnel water inflow seepage |
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