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Convergence-control approach for rock tunnels reinforced by grouted bolts, using the homogenization concept

Osgoui, Reza R. / Oreste, Pierpaolo

Abstract The scope of this paper is to introduce a method for the analysis of rock tunnels reinforced by grouted bolts, based on the convergence-control approach. The analytical formulations presented in this paper refers to an elasto-plastic behavior of the rock mass and the latest Hoek and Brown yield criterion (Version 2002). In order to model the reinforced plastic zone, the equivalent material approach was taken into account such that the apparent strength of the rock mass is improved as a consequence of the bolting effect. The general design guides and examples presented are intended to facilitate the comprehension and application of the proposed analytical solution in practice.

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Convergence-control approach for rock tunnels reinforced by grouted bolts, using the homogenization concept

Osgoui, Reza R. / Oreste, Pierpaolo

Abstract The scope of this paper is to introduce a method for the analysis of rock tunnels reinforced by grouted bolts, based on the convergence-control approach. The analytical formulations presented in this paper refers to an elasto-plastic behavior of the rock mass and the latest Hoek and Brown yield criterion (Version 2002). In order to model the reinforced plastic zone, the equivalent material approach was taken into account such that the apparent strength of the rock mass is improved as a consequence of the bolting effect. The general design guides and examples presented are intended to facilitate the comprehension and application of the proposed analytical solution in practice.

Convergence-control approach for rock tunnels reinforced by grouted bolts, using the homogenization concept

Osgoui, Reza R. / Oreste, Pierpaolo

Abstract The scope of this paper is to introduce a method for the analysis of rock tunnels reinforced by grouted bolts, based on the convergence-control approach. The analytical formulations presented in this paper refers to an elasto-plastic behavior of the rock mass and the latest Hoek and Brown yield criterion (Version 2002). In order to model the reinforced plastic zone, the equivalent material approach was taken into account such that the apparent strength of the rock mass is improved as a consequence of the bolting effect. The general design guides and examples presented are intended to facilitate the comprehension and application of the proposed analytical solution in practice.

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Title:

Convergence-control approach for rock tunnels reinforced by grouted bolts, using the homogenization concept

Contributors:

Osgoui, Reza R. (author) / Oreste, Pierpaolo (author)

Published in:

Geotechnical and Geological Engineering ; 25

Publication date:

2007

ISSN:

DOI:

https://doi.org/10.1007/s10706-007-9120-0

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Grouted bolts , Hoek-brown strength criterion , Equivalent material , Rock tunnel , Homogenization approach , Convergence-confinement method

Classification:

BKL: 38.58 Geomechanik / 57.00 Bergbau: Allgemeines / 56.20 Ingenieurgeologie, Bodenmechanik
Local classification TIB: 275/3750

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