Shear strength properties of cable bolts using a new double shear instrument, experimental study, and numerical simulation
Article
Article Title | Shear strength properties of cable bolts using a new double shear instrument, experimental study, and numerical simulation |
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ERA Journal ID | 4304 |
Article Category | Article |
Authors | Mirzaghorbanali, Ali (Author), Rasekh, Haleh (Author), Aziz, Naj (Author), Yang, Guanyu (Author), Khaleghparast, Saman (Author) and Nemcik, Jan (Author) |
Journal Title | Tunnelling and Underground Space Technology |
Journal Citation | 70, pp. 240-253 |
Number of Pages | 14 |
Year | 2017 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0886-7798 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.tust.2017.07.018 |
Web Address (URL) | http://www.sciencedirect.com/science/article/pii/S0886779816306435?via%3Dihub#! |
Abstract | A newly developed double shear apparatus without contact between concrete blocks was developed to conduct a series of double shear tests. This new double shear apparatus is capable of determining the pure shear strength of pre-tensioned fully grouted cable bolt without friction between sheared concrete blocks. Five different types of cable bolt, with various pretension loads, were tested to investigate the influence of surface profile type and pretension load on the shear strength of cable bolt. Concrete blocks of 40 MPa strength and the Stratabinder HS grout were used for consistency across the entire tests. The results showed that the plain cable bolts had higher peak shear load compared with the indented and spiral strand cable bolts. The shear displacement and peak shear load decreased by increasing the pretension load. A numerical analysis was carried out, based on the Fast Lagrangian Analysis of Continua (FLAC 2D) and the result was compared with the experimental data. It was observed that FLAC 2D is capable of simulating the performance of cable bolt satisfactorily. |
Keywords | Cable bolts; Double shear; Shear strength; Numerical analysis |
ANZSRC Field of Research 2020 | 400502. Civil geotechnical engineering |
401902. Geomechanics and resources geotechnical engineering | |
401905. Mining engineering | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | School of Civil Engineering and Surveying |
University of Wollongong | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q4679/shear-strength-properties-of-cable-bolts-using-a-new-double-shear-instrument-experimental-study-and-numerical-simulation
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