Nonlinear analysis for the coupled problem of temperature, seepage and stress fields in cold-region tunnels

被引：77

作者：

Lai, YM

Wu, ZW

Zhu, YL

Zhu, LN

机构：

[1] Northern Study Center, Laval University, Sainte-Foy

[2] Stt. Key Lab. of Frozen Soil Eng., Lanzhou Inst. of Glaciol. and G., Chinese Academy of Sciences

来源：

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY | 1998年 / 13卷 / 04期

关键词：

tunnel in cold regions; temperature effects; coupled modelling and numerical simulation;

D O I：

10.1016/S0886-7798(98)00086-8

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this paper, a mathmatical mechanical model and the governing differential equations of the coupled problem of temperature, seepage and stress fields with phase change are first derived from the theory of heat transfer, the theory of seepage and frozen soil mechanics. Then the finite element formulae of this problem are obtained from Galerkin's method Finally, an illustrative example of the temperature field and stress field in a cold regions tunnel, considering the seepage and frost-heaving force influence, is provided The example shows that the influence of frost-heaving force on the stresses of the tunnel lining is very large and, thus, the effect of this factor on the tunnel lining should be taken into account in the cold regions engineering design. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.

引用

页码：435 / 440

页数：6