Experimental and numerical study on the interface behaviour between the rock bolt and bond material
Conventional tunnelling methods (i.e., the drill and blast tunnelling method or the new Austrian tunnelling method) have been frequently applied for the construction of tunnels/caverns under a high overburden and with a large cross section. Under such adverse conditions, tunnel support materials may...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Online Access: | https://hdl.handle.net/10356/141463 |
| _version_ | 1826110948412227584 |
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| author | Yokota, Yasuhiro Zhao, Zhiye Nie, Wen Date, Kensuke Iwano, Keita Okada, Yuko |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Yokota, Yasuhiro Zhao, Zhiye Nie, Wen Date, Kensuke Iwano, Keita Okada, Yuko |
| author_sort | Yokota, Yasuhiro |
| collection | NTU |
| description | Conventional tunnelling methods (i.e., the drill and blast tunnelling method or the new Austrian tunnelling method) have been frequently applied for the construction of tunnels/caverns under a high overburden and with a large cross section. Under such adverse conditions, tunnel support materials may yield because of ground pressure and tunnel deformation. As a result, a tunnel may lose its stability due to a reduced effectiveness of the tunnel supports. Rock bolts have been widely used as an essential component of tunnel support, and many studies have been conducted on the performance of rock bolts in strengthening the jointed rock mass. However, there is a lack of understanding on the interface behaviour between the rock bolt and the bond material, especially the crack initiation and propagation inside the bond material. This study aims to investigate the interface behaviour between rock bolts and bond materials using laboratory tests (shear tests) and numerical simulations (Discontinuous deformation analysis). By assessing the impact of the key parameters in the rock bolting system, such as the ribs, rib angle, strength of the bond material and the confining pressure, we are able to better understand the supporting mechanism and the effects of rock bolting. |
| first_indexed | 2024-10-01T02:42:33Z |
| format | Journal Article |
| id | ntu-10356/141463 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:42:33Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1414632020-06-08T09:12:48Z Experimental and numerical study on the interface behaviour between the rock bolt and bond material Yokota, Yasuhiro Zhao, Zhiye Nie, Wen Date, Kensuke Iwano, Keita Okada, Yuko School of Civil and Environmental Engineering Engineering::Civil engineering Rock Bolt Modelling Shear Test Conventional tunnelling methods (i.e., the drill and blast tunnelling method or the new Austrian tunnelling method) have been frequently applied for the construction of tunnels/caverns under a high overburden and with a large cross section. Under such adverse conditions, tunnel support materials may yield because of ground pressure and tunnel deformation. As a result, a tunnel may lose its stability due to a reduced effectiveness of the tunnel supports. Rock bolts have been widely used as an essential component of tunnel support, and many studies have been conducted on the performance of rock bolts in strengthening the jointed rock mass. However, there is a lack of understanding on the interface behaviour between the rock bolt and the bond material, especially the crack initiation and propagation inside the bond material. This study aims to investigate the interface behaviour between rock bolts and bond materials using laboratory tests (shear tests) and numerical simulations (Discontinuous deformation analysis). By assessing the impact of the key parameters in the rock bolting system, such as the ribs, rib angle, strength of the bond material and the confining pressure, we are able to better understand the supporting mechanism and the effects of rock bolting. 2020-06-08T09:12:48Z 2020-06-08T09:12:48Z 2018 Journal Article Yokota, Y., Zhao, Z., Nie, W., Date, K., Iwano, K., & Okada, Y. (2019). Experimental and numerical study on the interface behaviour between the rock bolt and bond material. Rock Mechanics and Rock Engineering, 52(3), 869-879. doi:10.1007/s00603-018-1629-4 0723-2632 https://hdl.handle.net/10356/141463 10.1007/s00603-018-1629-4 2-s2.0-85055944328 3 52 869 879 en Rock Mechanics and Rock Engineering © 2018 Springer-Verlag GmbH Austria, part of Springer Nature. All rights reserved. |
| spellingShingle | Engineering::Civil engineering Rock Bolt Modelling Shear Test Yokota, Yasuhiro Zhao, Zhiye Nie, Wen Date, Kensuke Iwano, Keita Okada, Yuko Experimental and numerical study on the interface behaviour between the rock bolt and bond material |
| title | Experimental and numerical study on the interface behaviour between the rock bolt and bond material |
| title_full | Experimental and numerical study on the interface behaviour between the rock bolt and bond material |
| title_fullStr | Experimental and numerical study on the interface behaviour between the rock bolt and bond material |
| title_full_unstemmed | Experimental and numerical study on the interface behaviour between the rock bolt and bond material |
| title_short | Experimental and numerical study on the interface behaviour between the rock bolt and bond material |
| title_sort | experimental and numerical study on the interface behaviour between the rock bolt and bond material |
| topic | Engineering::Civil engineering Rock Bolt Modelling Shear Test |
| url | https://hdl.handle.net/10356/141463 |
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