Behaviour of cable bolts in shear; experimental study and mathematical modelling
Paper
Paper/Presentation Title | Behaviour of cable bolts in shear; experimental |
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Presentation Type | Paper |
Authors | Aziz, Naj (Author), Craig, Peter (Author), Mirzaghorbanali, Ali (Author), Rasekh, Haleh (Author), Nemcik, Jan (Author) and Li, Xuwei (Author) |
Editors | Aziz, Naj and Kininmonth, Bob |
Journal or Proceedings Title | Proceedings of the 2015 Coal Operators' Conference |
ERA Conference ID | 60723 |
Number of Pages | 14 |
Year | 2015 |
Place of Publication | Wollongong, Australia |
ISBN | 9781925100235 |
Web Address (URL) of Paper | http://ro.uow.edu.au/coal/559 |
Conference/Event | 2015 Coal Operators' Conference |
Underground Coal Operators' Conference | |
Event Details | 2015 Coal Operators' Conference Parent Coal Operators' Conference Event Date 11 to end of 13 Feb 2015 Event Location Wollongong, Australia |
Event Details | Underground Coal Operators' Conference |
Abstract | The application of cable bolts for ground support is on the increase in underground coal mines worldwide. Currently, two methods of evaluating the performance of the cable bolt are favoured; the short encapsulation pull test and shear test. The former method can be used both in the laboratory and the field, while the latter can be undertaken mainly in the laboratory. There are two methods of shear strength testing, single and double shear tests. This paper examines the double shear testing of several cable bolts currently marketed in Australia under various pre-tension stresses. Both plain and indented wire cable bolts were tested. It was found that, the shear strength of the cable bolt was a function of the wire geometry and initial pre-tension. Indented wire cable bolts were lower in shear strength than the plain wire cable bolts. A mathematical model was proposed to evaluate the shear strength of cable bolts using Fourier series and Mohr-Coulomb failure criterion. The model coefficients were determined based on the experimental results. The findings from the mathematical modelling tallied well with the experimental results. |
Keywords | cable bolts; strata reinforcement |
ANZSRC Field of Research 2020 | 400502. Civil geotechnical engineering |
401905. Mining engineering | |
Public Notes | No paper in these proceedings is to be re-published unless with written permission from the conference organisers and/or the original authors who maintain the copyright for |
Byline Affiliations | University of Wollongong |
Jennmar Australia, New South Wales | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q5379/behaviour-of-cable-bolts-in-shear-experimental-study-and-mathematical-modelling
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