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Numerical modelling of failure propagation in fully grouted rock bolts subjected to tensile load
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Nemcik, Jan, Ma, Shuqi, Aziz, Naj, Ren, Ting and Geng, Xueyu (2014) Numerical modelling of failure propagation in fully grouted rock bolts subjected to tensile load. International Journal of Rock Mechanics and Mining Sciences, 71 . pp. 293-300. doi:10.1016/j.ijrmms.2014.07.007 ISSN 1365-1609.
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Official URL: https://doi.org/10.1016/j.ijrmms.2014.07.007
Abstract
Numerical modelling of fully grouted rock bolts loaded in tension is presented by implementing a non-linear bond–slip relationship of bolt–grout interface into a commercial finite difference rock mechanics code. The proposed model shows a close match with the experimental results and analytical predictions in terms of load–displacement relationship, rock bolt axial force distribution and interfacial shear stress distribution. A detailed debonding failure process is also presented, which includes five successive states: elastic state, elastic-softening state, elastic-softening-debonding state, softening-debonding state and debonding state.
Item Type: | Journal Article | ||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||
Journal or Publication Title: | International Journal of Rock Mechanics and Mining Sciences | ||||||
Publisher: | Pergamon Press | ||||||
ISSN: | 1365-1609 | ||||||
Official Date: | October 2014 | ||||||
Dates: |
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Volume: | 71 | ||||||
Page Range: | pp. 293-300 | ||||||
DOI: | 10.1016/j.ijrmms.2014.07.007 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access |
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