Numerical investigation of the shear behaviour of a cable bolt in single shear test

Li, Xuwei and Yang, Guanyu and Nemcik, Jan and Mirzaghorbanali, Ali and Aziz, Naj (2019) Numerical investigation of the shear behaviour of a cable bolt in single shear test. Tunnelling and Underground Space Technology, 84. pp. 227-236. ISSN 0886-7798

Abstract

Cable shear behavior in reinforcing rock discontinuities involves both the axial shear behaviour along the cablegrout
interface and the local lateral shear behaviour of the cable deflecting section. This is a complex condition
which is difficult to be solved in a theoretical manner. Pile structural elements in Flac3D were used here to
investigate this shear behavior with special attention to the influence of cable anchorage length. The employed
numerical cable model was firstly calibrated using the laboratory pullout test and a single shear test on a plain
Superstrand cable bolt. Then the calibrated model was used to investigate the anchorage length effect on the
cable lateral shear behavior. As expected, numerical results show that two demarcation anchorage lengths existed
in cable shear tests. In the case of plain Superstrand cable bolt subjected to lateral shear loading at an angle
of 90°, the two demarcation anchorage lengths were approximately 2.09m and 0.61 m.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to Published version in accordance with the copyright policy of the publisher.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying
Date Deposited: 18 Jan 2019 01:52
Last Modified: 18 Jan 2019 01:52
Uncontrolled Keywords: numerical modelling, cable shear behavior, cable anchorage length, single shear test
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090501 Civil Geotechnical Engineering
09 Engineering > 0914 Resources Engineering and Extractive Metallurgy > 091402 Geomechanics and Resources Geotechnical Engineering
09 Engineering > 0914 Resources Engineering and Extractive Metallurgy > 091405 Mining Engineering
Socio-Economic Objective: B Economic Development > 85 Energy > 8502 Mining and Extraction of Energy Resources > 850201 Coal Mining and Extraction
Identification Number or DOI: 10.1016/j.tust.2018.11.016
URI: http://eprints.usq.edu.au/id/eprint/35320

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