Evaluation of impending collapse in circular tunnels by analytical and numerical approaches

被引：125

作者：

Fraldi, M. ^{[1
]}

Guarracino, F. ^{[1
]}

机构：

[1] Univ Naples Federico 2, Dipartimento Ingn Strutturale, Naples, Italy

来源：

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY | 2011年 / 26卷 / 04期

关键词：

Circular tunnels; Impending collapse; Plasticity; Limit analysis; Numerical analysis; MECHANISMS; STRENGTH;

D O I：

10.1016/j.tust.2011.03.003

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

On the basis of a straightforward analytical approach which has been recently proposed by the present authors, a comparison with numerical procedures to predict plastic collapse in circular rock tunnels is reported. In fact, numerical modeling of the evolution of progressive failure leading to collapse in tunnels is a quite complicated matter and requires great care in modeling the problem and interpretating the results. In order to provide a guide to engineers facing rock limit state problems, a few examples by means of three commercial packages are presented, discussed in details and confronted with the analytical results. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：507 / 516

页数：10

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