Analytical solutions for collapse mechanisms in tunnels with arbitrary cross sections

被引：187

作者：

Fraldi, M. ^{[1
]}

Guarracino, F. ^{[1
]}

机构：

[1] Univ Naples Federico II, CRIB, Dipartimento Ingn Strutturale, I-80125 Naples, Italy

来源：

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES | 2010年 / 47卷 / 02期

关键词：

Tunneling; Impending collapse; Plasticity; Limit analysis; Hoek-Brown criterion;

D O I：

10.1016/j.ijsolstr.2009.09.028

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

While innovative processes take continuously place in tunneling, which remains a rapidly evolving technology, the reliable prediction of impending collapse of roofs appears still one of the most difficult tasks in civil engineering. On the basis of a theoretical approach recently proposed by the present authors, a comprehensive analytical solution for collapse mechanisms in tunnels with arbitrary excavation profiles in plastic Hoek-Brown rock masses is presented and discussed. Special attention is given to examples concerning circular tunnels and the results allow some interesting considerations on the mechanics of collapse. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：216 / 223

页数：8

共 16 条

[1]

Bienawski Z.T., 1976, P S EXPLORATION ROCK, P97, DOI DOI 10.1016/0148-9062(77)90608-8

[2]

Bieniawski Z.T., 1989, ENG ROCK MASS CLASSI

[3]

DERSKI W, 1989, ROCK SOIL MECH

[4] Limit analysis of collapse mechanisms in cavities and tunnels according to the Hoek-Brown failure criterion [J].