A study on the shear behaviour of infilled rock joints under cyclic loading and constant normal stiffness conditions

Mirzaghorbanali, Ali and Nemcik, Jan and Aziz, Naj (2014) A study on the shear behaviour of infilled rock joints under cyclic loading and constant normal stiffness conditions. In: 2014 Coal Operators' Conference, 12-14 Feb 2014, Wollongong, NSW, Australia.

Abstract

Shear behaviour of infilled rock joints under cyclic loading and constant normal stiffness conditions were studied. The experiments were carried out in a cyclic loading direct shear apparatus. The laboratory studies were conducted using saw tooth shaped asperities cast in high strength gypsum plaster. Two types of triangular asperities inclined at 9.5° (Type I) and 18.5° (Type II) from the shearing direction were considered for testing. Clayey sand (75% fine sand and 25% Kaolinite) at initial moisture content of 12.5% was selected as the infill material. Profile of shear planes and strength envelopes for different conditions of infill thickness to asperity height ratio, initial normal stress, and initial asperity angle were investigated.


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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: 29 Apr 2019 02:17
Last Modified: 24 Jun 2019 02:35
Uncontrolled Keywords: cyclic shear behaviour; rock joints
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/36335

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