季节性冻土隧道的温度场与应力场耦合数值分析

英文篇名：Numerical Analysis on Temperature-stress Coupling for Seasonally Frozen Soil Tunnel
中文刊名：水利与建筑工程学报
英文刊名：Journal of Water Resources and Architectural Engineering
作者：王成 ; 丁敏 ; 李晓红
英文作者：WANG Cheng1 ; DING Min2 ; LI Xiao-hong1(1.Department of Tunnel and Geotechnical Engineering ; Chongqing Jiaotong University ; Chongqing 400074 ; China ; 2.College of Civil Engineering ; Chongqing University ; Chongqing 400045 ; China)
中文关键词：季节性冻土 ; 温度场 ; 应力场 ; 保温材料 ; 耦合问题
英文关键词：seasonally frozen soil ; temperature field ; stress field ; insulation material ; coupled problem
出版日期：2010-08-15
机构：重庆交通大学隧道与岩土工程系;重庆大学土木工程学院;
年：2010
期：04
出版单位：水利与建筑工程学报

摘要

以鄂西地区沙子垭隧道为背景,运用传热学和有限元的基本理论,考虑应力场和温度场的耦合影响,建立了应力场和温度场耦合问题的二维数学模型,并应用Galerkin法进行了有限元分析。分析结果表明,温度场对季节性冻土隧道的应力场影响较大,在建设期间应该考虑应力场与温度场的耦合影响。
Taking Shaziya tunnel in the west of Hubei Province for example,according to the essential theories of heat transfer and finite element,and considering the coupled effects of the stress field and temperature field,the two-dimensional computation model of the coupling problem is given here,and the finite element formulae of this problem are obtained by Galerkin's method.The results show that the effect of the temperature filed on the stress field in a seasonally frozen soil tunnel is very great,and the stress field should be taken into account during construction.

引文

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