Physical investigation on the behaviours of voussoir beams
It is important to understand the behaviour of voussoir beams in the design of underground excavations. There are a large number of discrepancies between the results obtained by different researchers so far. To resolve these discrepancies, physically testing the stress distribution at the midspan an...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020-06-01
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| Series: | Journal of Rock Mechanics and Geotechnical Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674775520300366 |
| _version_ | 1818558287580233728 |
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| author | Chaoshi Hu Derek Apel Les Jozef Sudak Wei Victor Liu Zhaoyuan Chu |
| author_facet | Chaoshi Hu Derek Apel Les Jozef Sudak Wei Victor Liu Zhaoyuan Chu |
| author_sort | Chaoshi Hu |
| collection | DOAJ |
| description | It is important to understand the behaviour of voussoir beams in the design of underground excavations. There are a large number of discrepancies between the results obtained by different researchers so far. To resolve these discrepancies, physically testing the stress distribution at the midspan and abutment of voussoir beam is the key. In this paper, a simple two-block voussoir beam was built with loading system. The displacement and strain of the voussoir beam were measured by a digital image correlation system. The strain distribution along the joints of voussoir beams was firstly revealed. Then, the relationship between transverse load and midspan displacement of voussoir beam was presented. It is found that the stress distributions at the midspan and abutment are different both in shape and depth. The stress distribution is changing as the loading changes as well. |
| first_indexed | 2024-12-14T00:10:39Z |
| format | Article |
| id | doaj.art-c2baf1b0ad1d482db3111252892e2a87 |
| institution | Directory Open Access Journal |
| issn | 1674-7755 |
| language | English |
| last_indexed | 2024-12-14T00:10:39Z |
| publishDate | 2020-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Rock Mechanics and Geotechnical Engineering |
| spelling | doaj.art-c2baf1b0ad1d482db3111252892e2a872022-12-21T23:25:46ZengElsevierJournal of Rock Mechanics and Geotechnical Engineering1674-77552020-06-01123516527Physical investigation on the behaviours of voussoir beamsChaoshi Hu0Derek Apel1Les Jozef Sudak2Wei Victor Liu3Zhaoyuan Chu4School of Mining and Petroleum Engineering, Department of Civil and Environmental Engineering, University of Alberta, Edmonton, T6G 1H9, Canada; Corresponding author.School of Mining and Petroleum Engineering, Department of Civil and Environmental Engineering, University of Alberta, Edmonton, T6G 1H9, CanadaDepartment of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, T2N 1N4, CanadaSchool of Mining and Petroleum Engineering, Department of Civil and Environmental Engineering, University of Alberta, Edmonton, T6G 1H9, CanadaAnhui Yitong Construction Consulting and Management, Ltd., Yuexi, Anqing, 246000, ChinaIt is important to understand the behaviour of voussoir beams in the design of underground excavations. There are a large number of discrepancies between the results obtained by different researchers so far. To resolve these discrepancies, physically testing the stress distribution at the midspan and abutment of voussoir beam is the key. In this paper, a simple two-block voussoir beam was built with loading system. The displacement and strain of the voussoir beam were measured by a digital image correlation system. The strain distribution along the joints of voussoir beams was firstly revealed. Then, the relationship between transverse load and midspan displacement of voussoir beam was presented. It is found that the stress distributions at the midspan and abutment are different both in shape and depth. The stress distribution is changing as the loading changes as well.http://www.sciencedirect.com/science/article/pii/S1674775520300366Voussoir beamStress distributionImage correlation |
| spellingShingle | Chaoshi Hu Derek Apel Les Jozef Sudak Wei Victor Liu Zhaoyuan Chu Physical investigation on the behaviours of voussoir beams Journal of Rock Mechanics and Geotechnical Engineering Voussoir beam Stress distribution Image correlation |
| title | Physical investigation on the behaviours of voussoir beams |
| title_full | Physical investigation on the behaviours of voussoir beams |
| title_fullStr | Physical investigation on the behaviours of voussoir beams |
| title_full_unstemmed | Physical investigation on the behaviours of voussoir beams |
| title_short | Physical investigation on the behaviours of voussoir beams |
| title_sort | physical investigation on the behaviours of voussoir beams |
| topic | Voussoir beam Stress distribution Image correlation |
| url | http://www.sciencedirect.com/science/article/pii/S1674775520300366 |
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