The stability of shallow tunnels in rock based on limit analysis
Predicting the stability of long rock tunnels presents a significant challenge for geotechnical engineers. This arises due to the difficulty in evaluating the jointed rock mass strength, because rock masses are inhomogeneous, discontinuous media composed of rock material and naturally occurring disc...
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2009
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ftunivnewcastnsw:uon:8800 2023-05-15T17:08:22+02:00 The stability of shallow tunnels in rock based on limit analysis Li, Anjui Merifield, Richard The University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering 2009 http://hdl.handle.net/1959.13/919226 eng eng Liberty Culture and Technology Company 3rd International Conference on New Development in Rock Mechanics and Engineering. The Proceedings of the 3rd International Conference 24-26 May 2009, Sanya, P.R. China on New Development in Rock Mechanics and Engineering (Sanya, China 24-26 May, 2009) p. 289-294 rock tunnels stability Hoek-Brown failure criterion limit analysis collapse prevention conference paper 2009 ftunivnewcastnsw 2018-07-27T00:33:29Z Predicting the stability of long rock tunnels presents a significant challenge for geotechnical engineers. This arises due to the difficulty in evaluating the jointed rock mass strength, because rock masses are inhomogeneous, discontinuous media composed of rock material and naturally occurring discontinuities such as joints, fractures and bedding planes. In general, to estimate the stability of rock tunnels, conventional Mohr-Coulomb model using the parameters, c and φ, are used. This study adopts the nonlinear Hoek-Brown failure criterion to deal with the shallow tunnel stability problem. In this paper, numerical finite element upper and lower bound limit analysis has been used conjunction with the latest version of the Hoek-Brown failure criterion. A range of tunnel geometries and material properties are considered and rigorous bounds on the internal tunnel pressure required to prevent collapse are obtained. Conference Object Long Rock NOVA: The University of Newcastle Research Online (Australia) Hoek ENVELOPE(-65.050,-65.050,-66.000,-66.000) Long Rock ENVELOPE(-61.198,-61.198,-62.689,-62.689) |
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NOVA: The University of Newcastle Research Online (Australia) |
op_collection_id |
ftunivnewcastnsw |
language |
English |
topic |
rock tunnels stability Hoek-Brown failure criterion limit analysis collapse prevention |
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rock tunnels stability Hoek-Brown failure criterion limit analysis collapse prevention Li, Anjui Merifield, Richard The stability of shallow tunnels in rock based on limit analysis |
topic_facet |
rock tunnels stability Hoek-Brown failure criterion limit analysis collapse prevention |
description |
Predicting the stability of long rock tunnels presents a significant challenge for geotechnical engineers. This arises due to the difficulty in evaluating the jointed rock mass strength, because rock masses are inhomogeneous, discontinuous media composed of rock material and naturally occurring discontinuities such as joints, fractures and bedding planes. In general, to estimate the stability of rock tunnels, conventional Mohr-Coulomb model using the parameters, c and φ, are used. This study adopts the nonlinear Hoek-Brown failure criterion to deal with the shallow tunnel stability problem. In this paper, numerical finite element upper and lower bound limit analysis has been used conjunction with the latest version of the Hoek-Brown failure criterion. A range of tunnel geometries and material properties are considered and rigorous bounds on the internal tunnel pressure required to prevent collapse are obtained. |
author2 |
The University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering |
format |
Conference Object |
author |
Li, Anjui Merifield, Richard |
author_facet |
Li, Anjui Merifield, Richard |
author_sort |
Li, Anjui |
title |
The stability of shallow tunnels in rock based on limit analysis |
title_short |
The stability of shallow tunnels in rock based on limit analysis |
title_full |
The stability of shallow tunnels in rock based on limit analysis |
title_fullStr |
The stability of shallow tunnels in rock based on limit analysis |
title_full_unstemmed |
The stability of shallow tunnels in rock based on limit analysis |
title_sort |
stability of shallow tunnels in rock based on limit analysis |
publisher |
Liberty Culture and Technology Company |
publishDate |
2009 |
url |
http://hdl.handle.net/1959.13/919226 |
long_lat |
ENVELOPE(-65.050,-65.050,-66.000,-66.000) ENVELOPE(-61.198,-61.198,-62.689,-62.689) |
geographic |
Hoek Long Rock |
geographic_facet |
Hoek Long Rock |
genre |
Long Rock |
genre_facet |
Long Rock |
op_relation |
3rd International Conference on New Development in Rock Mechanics and Engineering. The Proceedings of the 3rd International Conference 24-26 May 2009, Sanya, P.R. China on New Development in Rock Mechanics and Engineering (Sanya, China 24-26 May, 2009) p. 289-294 |
_version_ |
1766064113526505472 |