隧道围岩内地下水渗流边界效应影响研究

doi:10.16285/j.rsm.2017.0381

›› 2018, Vol. 39 ›› Issue (11): 4001-4009.doi: 10.16285/j.rsm.2017.0381

隧道围岩内地下水渗流边界效应影响研究

刘世伟^{1, 2}，盛谦^{1, 3}，朱泽奇^{1, 2}，龚彦峰²，崔臻¹，李建贺¹，张善凯¹

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

收稿日期:2017-03-07 出版日期:2018-11-10 发布日期:2018-11-15
作者简介:刘世伟，男，1989年生，博士研究生，主要从事隧道渗流及其稳定性方面的研究工作。
基金资助:
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）。

Research on boundary effect of groundwater seepage in tunnel surrounding rock

LIU Shi-wei^{1, 2}, SHENG Qian^{1, 3}, ZHU Ze-qi^{1, 2}, GONG Yan-feng², CUI Zhen¹, LI Jian-he¹, ZHANG Shan-kai¹

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

Received:2017-03-07 Online:2018-11-10 Published:2018-11-15
Supported by:
This work was supported by the National Basic Research Program of China(973 Program) (2015CB057905), the National Key R&D Program of China (2016YFC0401803) and the National Natural Science Foundation of China(51409263, 51779253, 41672319).

摘要/Abstract

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。

关键词: 隧道围岩, 地下水渗流, 边界条件, 孔隙水压力, 涌水量

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.

Key words: tunnel surrounding rock, groundwater seepage, boundary conditions, pore water pressure, water inflow

中图分类号:

U 451+.2

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]. , 2018, 39(11): 4001-4009.

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]. , 2018, 39(11): 4001-4009.

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隧道围岩内地下水渗流边界效应影响研究

Research on boundary effect of groundwater seepage in tunnel surrounding rock

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