Analysis on the anchoring effect of the point anchoring rockbolt and the full length rockbolt

A modified discontinuous deformation analysis (DDA) algorithm was proposed to study the deformation mechanism of rockbolt nearby the fracture surface and the interaction between the rockbolt and the fracture surface. In the modified method, it is assumed that the rockbolt has no deformation in rock...

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Bibliographic Details
Published in2009 IEEE International Conference on Intelligent Computing and Intelligent Systems Vol. 1; pp. 626 - 629
Main Authors Chun-mei Zheng, Yu-yong Jiao, Wei-shen Zhu, Yan-hui Ge
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.11.2009
Subjects
Analytical models
Capacitive sensors
Civil engineering
Deformable models
discontinuous deformation analysis
Equations
Fasteners
Laboratories
rock reinforcement
Stability analysis
Structural engineering
Surface cracks
the full length rockbolt
the point anchoring rockbolt
tunnel stability
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Summary:A modified discontinuous deformation analysis (DDA) algorithm was proposed to study the deformation mechanism of rockbolt nearby the fracture surface and the interaction between the rockbolt and the fracture surface. In the modified method, it is assumed that the rockbolt has no deformation in rock mass and its restriction effect on the fracture surface can only be considered. A normal and tangential spring is applied to the fracture surface separately to simulate the full length rockbolt. A tunnel was reinforced by using the full length rockbolt and the point anchoring rockbolt respectively. The simulation results indicate that the modified discontinuous deformation analysis (DDA) method is effective for the reinforcement of tunnel. It is found that, in general, the anchoring effect of the full length rockbolt is better than that of the point anchoring rockbolt.
ISBN:9781424447541
1424447542
DOI:10.1109/ICICISYS.2009.5357639