Ovaling deformations of circular tunnels under seismic loading, an update on seismic design and analysis of underground structures

被引：168
作者：
Hashash, YMA
Park, D
Yao, JIC
机构：
[1] Univ Illinois, Dept Civil & Environm Engn, Urbana, IL 61801 USA
[2] Hanyang Univ, Dept Civil & Environm Engn, Seoul 133791, South Korea
[3] CH2M HIL, Herndon, VA USA
来源：
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY | 2005年 / 20卷 / 05期
关键词：
earthquake design; seismic design; tunnels; underground structures;
D O I：
10.1016/j.tust.2005.02.004
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Two analytical solutions for estimating the ovaling deformation and forces in circular tunnels due to soil-structure interaction under seismic loading are widely used in engineering practice. This paper addresses an unresolved issue related to discrepancy between the two solutions. A comparison of the two solutions shows that the calculated forces and displacements are identical for the condition of full-slip between the tunnel lining and ground. However, the calculated lining thrusts differ by an order of magnitude when assuming no-slip between the tunnel lining and the ground. The analytical solutions are compared to numerical analyses of the no-slip condition using the finite element method to validate which of the two solutions provide the correct solution. Numerical analysis results agree with one of the analytical Solution that provides a higher estimate of the thrust on the tunnel lining, thus highlighting the limitation of the other analytical solution. (C) 2005 Elsevier Ltd. All rights reserved.
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收藏
页码：435 / 441
页数：7
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