| 隧道围岩内地下水渗流边界效应影响研究 |
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| 引用本文： | 刘世伟,盛 谦,朱泽奇,龚彦峰,崔 臻,李建贺,张善凯.隧道围岩内地下水渗流边界效应影响研究[J].岩土力学,2018,39(11):4001-4009. |
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| 作者姓名： | 刘世伟 盛 谦 朱泽奇 龚彦峰 崔 臻 李建贺 张善凯 |
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| 作者单位： | 1. 中国科学院武汉岩土力学研究所 岩土力学与工程国家重点实验室，湖北 武汉 430071； 2. 中铁第四勘察设计院集团有限公司 水下隧道技术湖北省工程实验室，湖北 武汉 430063；3. 中国科学院大学，北京 100049 |
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| 基金项目： | 国家重点基础研究发展计划(973)项目（No. 2015CB057905）；国家重点研发计划（No. 2016YFC0401803）；国家自然科学基金资助项目 （No. 51409263, No. 51779253, No. 41672319）。 |
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| 摘 要： | 根据水位条件、施工工艺和防排水设计原则将隧道渗流计算围岩透水边界条件大致划分为4种类型，并分析了不同透水边界条件适应的施工工况。基于复变函数理论和保角映射方法，推导得出4种透水边界条件下隧道围岩内任一点孔隙水压力和隧道涌水量解析计算公式，通过与数值解的对比，印证了解析解的准确性。在此基础上，根据不同透水边界条件下隧道涌水量和围岩关键点孔隙水压力随埋深直径比（ ）的变化规律，分析了透水边界条件的变化对浅埋隧道和深埋隧道的影响，并探讨了浅埋水下隧道渗流计算中透水边界条件的选取。相关结论与认识对于隧道渗流计算和排水设计具有一定的指导作用和参考价值。
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| 关 键 词： | 隧道围岩 地下水渗流 边界条件 孔隙水压力 涌水量 |
| 收稿时间： | 2017-03-07 |
Research on boundary effect of groundwater seepage
in tunnel surrounding rock |
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| LIU Shi-wei,SHENG Qian,ZHU Ze-qi,GONG Yan-feng,CUI Zhen,LI Jian-he,ZHANG Shan-kai.Research on boundary effect of groundwater seepage
in tunnel surrounding rock[J].Rock and Soil Mechanics,2018,39(11):4001-4009. |
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| Authors: | LIU Shi-wei SHENG Qian ZHU Ze-qi GONG Yan-feng CUI Zhen LI Jian-he ZHANG Shan-kai |
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| Institution: | 1. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, China; 2. Hubei Provincial Engineering Laboratory for Underwater Tunnel, China Railway Siyuan Survey and Design Group Co., Ltd., Wuhan, Hubei 430063, China; 3. University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | Tunnel surrounding rock seepage boundary conditions can be roughly divided into four types based on water level, drainage design and construction approach, and the seepage boundary conditions to adapt to different construction conditions are discussed in detail. An analytical formula to calculate pore water pressure in tunnel surrounding rock and tunnel water inflow under four kinds of boundary conditions is obtained by adopting the method of conformal mapping of complex function. Comparison between analytical solution and numerical solution confirms the correctness of the analytical solution. Based on the relationship between tunnel water inflow with buried depth diameter ratio ( ), as well as the relationship between surrounding rock pore water pressure and under different boundary conditions, the influence of boundary conditions on shallow-buried tunnels and deep-buried tunnels is analyzed. Selection of boundary conditions for shallow-buried tunnel seepage calculation is also discussed. The conclusions for tunnel seepage calculation and drainage design reported in this article provide theoretical guidance for engineering practice. |
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| Keywords: | tunnel surrounding rock groundwater seepage boundary conditions pore water pressure water inflow |
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