An experimental study on the contact surface area of cabled bolted strata

Rasekh, Haleh and Aziz, Naj and Nemcik, Jan and Mirzaghorbanali, Ali and Li, Xuwei (2015) An experimental study on the contact surface area of cabled bolted strata. In: 2015 Coal Operators' Conference, 11-13 Feb 2015, Wollongong, NSW, Australia.

Abstract

The application of cable bolts in underground mines is an increasing trend all over the world; therefore, it is necessary to determine the axial and shear stresses on cable bolts. One important factor is to determine the coefficient of friction of concrete joint surface. This paper examines the contact coefficient of several cabled strata under various pre-tension loads subject to double shearing test. The result shows that the contact surface area can vary between 70-90% of the total surface area. This
empirical value helps to figure out shear and axial stresses, where it is impossible to determine the exact
amount of contact coefficient.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: 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 their work.
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 24 Apr 2019 03:15
Last Modified: 24 Jun 2019 02:57
Uncontrolled Keywords: cable bolts; contact coefficient
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090501 Civil Geotechnical Engineering
09 Engineering > 0914 Resources Engineering and Extractive Metallurgy > 091405 Mining Engineering
URI: http://eprints.usq.edu.au/id/eprint/36308

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