Study of the function of the insulation layer for treating water leakage in permafrost tunnels
Study of the function of the insulation layer for treating water leakage in permafrost tunnels
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保温层处理多年冻土隧道渗漏水的作用研究
DOI：
10.1016/j.applthermaleng.2006.05.032
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发表时间：
2007-02
影响因子：
6.4
通讯作者：
Xiao Shengxie
中科院分区：
文献类型：
--
作者：
Zhang Xuefu;Xiao Jianzhang;Zhang Yaonan;Xiao Shengxie
青藏铁路是中国西部大开发规划中的国家重大建设项目之一。昆仑山隧道是该铁路的关键控制性工程。但根据现场观测资料，2003年5月22日，DK977+620段施工缝发生突水(DK为距离公里的缩写，977为977公里，620为620m)，最大涌水量达200m~3/d左右(1m~3/d为1m~3/d)，水压剧增。本文按时间步长介绍了青藏铁路昆仑山隧道的渗漏情况。根据隧道渗漏情况，找出了隧道渗漏的原因。根据传热学和渗流的基本理论，考虑渗流场和温度场的耦合效应，建立了耦合问题的三维计算模型，用Galerkin法得到了有限元计算公式，并编制了计算程序。利用该模型和程序，对青藏铁路昆仑山隧道DK977+578至DK977+682平埋段有无保温层时的耦合问题进行了三维非线性分析。结果表明，在昆仑山隧道两衬砌之间设置保温层是处理渗水的必要措施。
Qinghai–Tibet Railway is one of the national momentous construction projects in the West Development Plan of China. Kunlun mountain tunnel is the key control engineering of the railway. But, according to the observation in-situ data, on May 22, 2003, water irruption took place in the construction joints at DK977+620 section (the sign DK is an abbreviation of distance kilometer, the number 977 expresses the 977km, and the number 620 expresses 620m), and the maximum flux of the water reached to about 200m3/d(1m3/d means one cubic meter per day), and the water pressure increased violently. In this paper, the status of water leakage of Kunlun mountain tunnel on Qinghai–Tibet railway is introduced by the time step. Based on the status of water leakage, the reason for water leakage in the tunnel is opened out. According to the basal theories of heat transfer and seepage, considering the coupled effect of seepage field and temperature field, a three-dimensional calculational model of the coupled problem are given, and the finite element formulae are obtained by Galerkin’s method, and the computer program is written. Using this model and program, three-dimensional nonlinear analysis for the coupled problem of the flat buried part from DK977+578 to DK977+682 in Kunlun mountain tunnel on Qinghai–Tibet Railway are made either with or without the insulation layer. The result shows that it is necessary for treating water leakage to fit the insulation layer between the two linings in Kunlun mountain tunnel.
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DOI：
10.1002/nag.1610030103
发表时间：
1979
影响因子：
4
作者：
K. Bathe;M. Khoshgoftaar
通讯作者：
K. Bathe;M. Khoshgoftaar
影响因子：
4.1
作者：
Bartelt, P;Lehning, M
通讯作者：
Lehning, M
影响因子：
2.9
作者：
Y. Lai;Ziwang Wu;Yuanlin Zhu;Linnan Zhu
通讯作者：
Y. Lai;Ziwang Wu;Yuanlin Zhu;Linnan Zhu
DOI：
10.1002/nag.1610170504
发表时间：
1993-05
影响因子：
4
作者：
Chong-bin Zhao;S. Valliappan
通讯作者：
Chong-bin Zhao;S. Valliappan
影响因子：
4.1
作者：
Lai Yuanming-;Lai Yuanming-;LI Song-yu;W. Ziwang;Yu Wenbing
通讯作者：
Lai Yuanming-;Lai Yuanming-;LI Song-yu;W. Ziwang;Yu Wenbing