Interaction between an Eco-Spiral Bolt and Crushed Rock in a Borehole Evaluated by Pull-Out Testing
The interactions between an eco-spiral bolt and crushed rocks in a borehole were evaluated by pull-out testing in a laboratory and numerical analysis. The porosity of the crushed rock surrounding the bolt depended on the size of the eco-spiral bolt and affected the eco-spiral bolt’s axial resistance...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/4205045 |
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| _version_ | 1850158365100998656 |
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| author | Seong-Seung Kang Atsuo Hirata Bo-An Jang Yong-Seok Seo Daehyeon Kim |
| author_facet | Seong-Seung Kang Atsuo Hirata Bo-An Jang Yong-Seok Seo Daehyeon Kim |
| author_sort | Seong-Seung Kang |
| collection | DOAJ |
| description | The interactions between an eco-spiral bolt and crushed rocks in a borehole were evaluated by pull-out testing in a laboratory and numerical analysis. The porosity of the crushed rock surrounding the bolt depended on the size of the eco-spiral bolt and affected the eco-spiral bolt’s axial resistance force. The axial resistance force and the porosity of the crushed rocks in the borehole showed an inverse relationship. The porosity was also related to the size of the eco-spiral bolt. The maximum principal stress between the bolt and the rock was related to the porosity of the crushed rock and the size difference between the eco-spiral bolt and the borehole. At low porosity the experimental and numerical analyses show similar relationships between the axial resistance force and the displacement. However, at high porosity, the numerical results deviated greatly from the experimental observation. The initial agreement is attributed to the state of residual resistance after the maximum axial resistance force, and the latter divergence was due to the decreasing axial resistance force owing to slippage. |
| format | Article |
| id | doaj-art-63ebf6adb2bb498ba7580ad5b78bf99a |
| institution | OA Journals |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-63ebf6adb2bb498ba7580ad5b78bf99a2025-08-20T02:23:53ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422017-01-01201710.1155/2017/42050454205045Interaction between an Eco-Spiral Bolt and Crushed Rock in a Borehole Evaluated by Pull-Out TestingSeong-Seung Kang0Atsuo Hirata1Bo-An Jang2Yong-Seok Seo3Daehyeon Kim4Department of Energy and Resources Engineering, Chosun University, Gwangju 61452, Republic of KoreaRS Technology Co., Ltd. and Sojo University, Kumamoto 862-0941, JapanDepartment of Geophysics, Kangwon National University, Chuncheon 24341, Republic of KoreaDepartment of Earth and Environment Sciences, Chungbuk National University, Cheongju 28644, Republic of KoreaDepartment of Civil Engineering, Chosun University, Gwangju 61452, Republic of KoreaThe interactions between an eco-spiral bolt and crushed rocks in a borehole were evaluated by pull-out testing in a laboratory and numerical analysis. The porosity of the crushed rock surrounding the bolt depended on the size of the eco-spiral bolt and affected the eco-spiral bolt’s axial resistance force. The axial resistance force and the porosity of the crushed rocks in the borehole showed an inverse relationship. The porosity was also related to the size of the eco-spiral bolt. The maximum principal stress between the bolt and the rock was related to the porosity of the crushed rock and the size difference between the eco-spiral bolt and the borehole. At low porosity the experimental and numerical analyses show similar relationships between the axial resistance force and the displacement. However, at high porosity, the numerical results deviated greatly from the experimental observation. The initial agreement is attributed to the state of residual resistance after the maximum axial resistance force, and the latter divergence was due to the decreasing axial resistance force owing to slippage.http://dx.doi.org/10.1155/2017/4205045 |
| spellingShingle | Seong-Seung Kang Atsuo Hirata Bo-An Jang Yong-Seok Seo Daehyeon Kim Interaction between an Eco-Spiral Bolt and Crushed Rock in a Borehole Evaluated by Pull-Out Testing Advances in Materials Science and Engineering |
| title | Interaction between an Eco-Spiral Bolt and Crushed Rock in a Borehole Evaluated by Pull-Out Testing |
| title_full | Interaction between an Eco-Spiral Bolt and Crushed Rock in a Borehole Evaluated by Pull-Out Testing |
| title_fullStr | Interaction between an Eco-Spiral Bolt and Crushed Rock in a Borehole Evaluated by Pull-Out Testing |
| title_full_unstemmed | Interaction between an Eco-Spiral Bolt and Crushed Rock in a Borehole Evaluated by Pull-Out Testing |
| title_short | Interaction between an Eco-Spiral Bolt and Crushed Rock in a Borehole Evaluated by Pull-Out Testing |
| title_sort | interaction between an eco spiral bolt and crushed rock in a borehole evaluated by pull out testing |
| url | http://dx.doi.org/10.1155/2017/4205045 |
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