Analytical model of shear behaviour of a fully grouted cable bolt subjected to shearing

Li, Xuwei and Nemcik, Jan and Mirzaghorbanali, Ali and Aziz, Naj and Rasekh, Haleh (2015) Analytical model of shear behaviour of a fully grouted cable bolt subjected to shearing. International Journal of Rock Mechanics and Mining Sciences, 80. pp. 31-39. ISSN 1365-1609

Abstract

A fully grouted cable bolt is normally loaded at rock joints by a combination of the axial and shear forces causing both axial extension and shear deformation of the cable. The proposed analyses presented here attempts to predict the joint shear strength and shear displacement. The analyses are based on the statically indeterminate beam theory and some basic findings and conclusions of other researchers. Parametrical investigation is performed on four influence factors including bolt pretension, joint friction angle, concrete strength and bolt installation angle. Although the true plastic moduli of the cable bolt deflecting section at failure are the essential parameters in this analysis, they are practically impossible to determine. Thus, the average cable moduli obtained from the cable tensile strength tests were used. The proposed analytical model was compared with the experimental results, showing a good agreement. This analytical work aims to develop a simple tool for the practicing geotechnical engineer to effectively evaluate the cable shear behaviour and the influence of fully grouted cable bolts on joint shear resistance.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying
Date Deposited: 27 Jun 2017 22:46
Last Modified: 17 Aug 2017 05:33
Uncontrolled Keywords: Fully grouted cable bolt; Joint shear strength; Influence factors; Analytical model;
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090501 Civil Geotechnical Engineering
09 Engineering > 0905 Civil Engineering > 090599 Civil Engineering not elsewhere classified
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
Identification Number or DOI: 10.1016/j.ijrmms.2015.09.005
URI: http://eprints.usq.edu.au/id/eprint/32619

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