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Received: 2009-01-16
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Crosschecked: 2009-09-10
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Effects of overburden, rock strength and pillar width on the safety of a three-parallel-hole tunnel
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Shong-loong CHEN, Guo-wei LI, Meen-wah GUI. Effects of overburden, rock strength and pillar width on the safety of a three-parallel-hole tunnel[J]. Journal of Zhejiang University Science A, 2009, 10(11): 1581-1588.
@article{title="Effects of overburden, rock strength and pillar width on the safety of a three-parallel-hole tunnel",
author="Shong-loong CHEN, Guo-wei LI, Meen-wah GUI",
journal="Journal of Zhejiang University Science A",
volume="10",
number="11",
pages="1581-1588",
year="2009",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A0920040"
}
%0 Journal Article
%T Effects of overburden, rock strength and pillar width on the safety of a three-parallel-hole tunnel
%A Shong-loong CHEN
%A Guo-wei LI
%A Meen-wah GUI
%J Journal of Zhejiang University SCIENCE A
%V 10
%N 11
%P 1581-1588
%@ 1673-565X
%D 2009
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A0920040
TY - JOUR
T1 - Effects of overburden, rock strength and pillar width on the safety of a three-parallel-hole tunnel
A1 - Shong-loong CHEN
A1 - Guo-wei LI
A1 - Meen-wah GUI
J0 - Journal of Zhejiang University Science A
VL - 10
IS - 11
SP - 1581
EP - 1588
%@ 1673-565X
Y1 - 2009
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A0920040
Abstract: During the excavation of three-parallel-hole tunnel, the tunnel might collapse due to over-stress as a result of inadequate rock pillar width. Treating the rock overburden depth, rock strength, and rock pillar width as variables, a series of 3D numerical analysis was carried out to examine the effect of each variable on the safety of the tunnel, in particular the rock pillar. A stress strength ratio (SSR) was used to define whether the safety of the rock pillar was exceeded. A simple design chart for the case of three-parallel-hole tunnel, which took into account the influence of overburden depth, rock pillar width, and rock strength, was also proposed for used in the preliminary design stage.
[1] Brinkgreve, R.B.J., Broere, W., Waterman, D., 2005. Plaxis 3D-Tunnel, version 2. Delft University of Technology and Plaxis B.V., the Netherlands.
[2] Brinkgreve, R.B.J., Vermer, P.A., 1998. Plaxis, Finite Element Code for Soil and Rock Analyses. A.A. Balkema, Rotterdam, Broodfield.
[3] Chen, S.L., Lee, S.C., Gui, M.W., 2009. Effects of rock pillar width on the excavation behavior of parallel tunnels. Tunnelling and Underground Space Technology, 24(2):148-154.
[4] Georgiadis, K., Potts, D.M., Zdravkovic, L., 2004. Modelling the shear strength of soils in the general stress space. Computers and Geotechnics, 31(5):357-364.
[5] Hakala, M., Tolppanen, P., 2003. Analyses of Tunnel Stress Failures at Pyhäsalmi Mine. ISRM–Technology Roadmap for Rock Mechanics, South African Institute of Mining and Metallurgy, p.461-464.
[6] Hoek, E., Brown, E.T., 1997. Practical estimates of rock mass strength. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts, 34(8):1165-1186.
[7] Kuang, P.S., Wang, W.L., 1993. Practical application of FLAC in tunnel engineering. Sino-Geotechnics, 41:53-54 (in Chinese).
[8] Shrestha, G.L., 2005. Stress Induced Problems in Himalayan Tunnels with Special Reference to Squeezing. PhD Thesis, Norwegian University of Science and Technology, Norway, p.203.
[9] TANEEB (Taiwan Area National Expressway Engineering Bureau), 1991. Basic Design of Taipei-Ilan Expressway Project. Final Report of Geological Investigations for Pinlin-Touchen Section (in Chinese).
[10] Wang, W.L., 1993. Practical application of FLAC in tunnel engineering. Sino-Geotechnics, 41:53-54 (in Chinese).
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