Measuring roof-bolt response to axial and shear stresses: Laboratory and first in-situ analyses
Roof bolts are subjected to axial stresses, shear stresses, or both. Axial and shear stresses were compared between roof bolts machined with two and three slots. Shear stresses perpendicular to and at an angle to the shear planes were evaluated by analyzing a three-slot instrumented roof bolt, perfo...
| Main Authors: | , , |
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| Format: | Journal Article |
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Canadian Institute of Mining, Metallurgy and Petroleum
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/53443 |
| _version_ | 1848759145109389312 |
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| author | Jessu, Kashi Vishwanath Kostecki, T. Spearing, Sam |
| author_facet | Jessu, Kashi Vishwanath Kostecki, T. Spearing, Sam |
| author_sort | Jessu, Kashi Vishwanath |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Roof bolts are subjected to axial stresses, shear stresses, or both. Axial and shear stresses were compared between roof bolts machined with two and three slots. Shear stresses perpendicular to and at an angle to the shear planes were evaluated by analyzing a three-slot instrumented roof bolt, performing laboratory tests on two- and three-slot roof bolts, and conducting in-situ test analyses. Three-slot bolts appear to provide a complete bending strain profile, requiring no prior knowledge of the estimated shear-plane orientation. Minimum displacements occur in roof bolts installed perpendicular to rather than at an angle to the shear planes. |
| first_indexed | 2025-11-14T09:55:13Z |
| format | Journal Article |
| id | curtin-20.500.11937-53443 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:55:13Z |
| publishDate | 2016 |
| publisher | Canadian Institute of Mining, Metallurgy and Petroleum |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-534432017-10-12T07:24:26Z Measuring roof-bolt response to axial and shear stresses: Laboratory and first in-situ analyses Jessu, Kashi Vishwanath Kostecki, T. Spearing, Sam Roof bolts are subjected to axial stresses, shear stresses, or both. Axial and shear stresses were compared between roof bolts machined with two and three slots. Shear stresses perpendicular to and at an angle to the shear planes were evaluated by analyzing a three-slot instrumented roof bolt, performing laboratory tests on two- and three-slot roof bolts, and conducting in-situ test analyses. Three-slot bolts appear to provide a complete bending strain profile, requiring no prior knowledge of the estimated shear-plane orientation. Minimum displacements occur in roof bolts installed perpendicular to rather than at an angle to the shear planes. 2016 Journal Article http://hdl.handle.net/20.500.11937/53443 10.15834/cimj.2016.7 Canadian Institute of Mining, Metallurgy and Petroleum restricted |
| spellingShingle | Jessu, Kashi Vishwanath Kostecki, T. Spearing, Sam Measuring roof-bolt response to axial and shear stresses: Laboratory and first in-situ analyses |
| title | Measuring roof-bolt response to axial and shear stresses: Laboratory and first in-situ analyses |
| title_full | Measuring roof-bolt response to axial and shear stresses: Laboratory and first in-situ analyses |
| title_fullStr | Measuring roof-bolt response to axial and shear stresses: Laboratory and first in-situ analyses |
| title_full_unstemmed | Measuring roof-bolt response to axial and shear stresses: Laboratory and first in-situ analyses |
| title_short | Measuring roof-bolt response to axial and shear stresses: Laboratory and first in-situ analyses |
| title_sort | measuring roof-bolt response to axial and shear stresses: laboratory and first in-situ analyses |
| url | http://hdl.handle.net/20.500.11937/53443 |