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Title: The Effects of Installation Procedure on Bond Characteristics of Fully Grouted Rock Bolts
Authors: Ma, Shuqi
Aziz, Naj
Nemcik, Jan
Mirzaghorbanali, Ali
Keywords: Fully Grouted Rockbolts
Push Tests
Issue Date: 2017
Source: Ma, S., Aziz, N., Nemcik, J., & Mirzaghorbanali, A. (2017). The Effects of Installation Procedure on Bond Characteristics of Fully Grouted Rock Bolts. Geotechnical Testing Journal, 40(5), 846-857.
Series/Report no.: Geotechnical Testing Journal
Abstract: The bond characteristics of fully grouted rockbolts installed in steel tubes were investigated by bolt push tests. Steel tubes were inserted in a mine roadway roof to represent the confinement of rock boreholes. Rockbolts were installed in tubes using the installation technique of Australian underground mines. These tubes, with rockbolts inside, were retrieved from the field and brought back to the laboratory to be cut into 100-mm sections, which were then push tested. It was found that each bolt section had a distinct load-displacement profile, and that bond strength varied significantly along the bolt length. The factors influencing the bond strength of rockbolts were identified. The influence of the installation procedure on the bond strength of bolts in tubes was investigated.
ISSN: 0149-6115
DOI: 10.1520/GTJ20160239
Rights: © 2017 ASTM International. This paper was published in Geotechnical Testing Journal and is made available as an electronic reprint (preprint) with permission of ASTM International. The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles

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