Effect of surface retaining elements on rock stability: laboratory investigation with sand powder 3D printing
Abstract This study aims to investigate the beneficial effects of surface retaining elements (SREs) on the mechanical behaviors of bolted rock and roadway stability. 3D printing (3DP) technology is utilized to create rock analogue prismatic specimens for conducting this investigation. Uniaxial compr...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-09-01
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| Series: | International Journal of Coal Science & Technology |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s40789-023-00607-3 |
| _version_ | 1797454079788580864 |
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| author | Hao Feng Lishuai Jiang Qingwei Wang Peng Tang Atsushi Sainoki Hani S. Mitri |
| author_facet | Hao Feng Lishuai Jiang Qingwei Wang Peng Tang Atsushi Sainoki Hani S. Mitri |
| author_sort | Hao Feng |
| collection | DOAJ |
| description | Abstract This study aims to investigate the beneficial effects of surface retaining elements (SREs) on the mechanical behaviors of bolted rock and roadway stability. 3D printing (3DP) technology is utilized to create rock analogue prismatic specimens for conducting this investigation. Uniaxial compression tests with acoustic emission (AE) and digital image correlation techniques have been conducted on 3DP specimens bolted with different SREs. The results demonstrate that the strength and modulus of elasticity of the bolted specimens show a positive correlation with the area of the SRE; the AE characteristics of the bolted specimens are higher than those of the unbolted specimen, but they decrease with an increase in SRE area, thus further improving the integrity of the bolted specimens. The reinforcement effect of SREs on the surrounding rock of roadways is further analyzed using numerical modelling and field test. The results provide a better understanding of the role of SREs in rock bolting and the optimization of rock bolting design. Furthermore, they verify the feasibility of 3DP for rock analogues in rock mechanics tests. |
| first_indexed | 2024-03-09T15:33:07Z |
| format | Article |
| id | doaj.art-57d16677492d4129ab4bfc03d580b79c |
| institution | Directory Open Access Journal |
| issn | 2095-8293 2198-7823 |
| language | English |
| last_indexed | 2024-03-09T15:33:07Z |
| publishDate | 2023-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | International Journal of Coal Science & Technology |
| spelling | doaj.art-57d16677492d4129ab4bfc03d580b79c2023-11-26T12:09:18ZengSpringerOpenInternational Journal of Coal Science & Technology2095-82932198-78232023-09-0110111810.1007/s40789-023-00607-3Effect of surface retaining elements on rock stability: laboratory investigation with sand powder 3D printingHao Feng0Lishuai Jiang1Qingwei Wang2Peng Tang3Atsushi Sainoki4Hani S. Mitri5State Key Laboratory of Mining Disaster Prevention and Control, Shandong University of Science and TechnologyState Key Laboratory of Mining Disaster Prevention and Control, Shandong University of Science and TechnologyState Key Laboratory of Mining Disaster Prevention and Control, Shandong University of Science and TechnologyState Key Laboratory of Mining Disaster Prevention and Control, Shandong University of Science and TechnologyFaculty of Advanced Science and Technology, Kumamoto UniversityDepartment of Mining and Materials Engineering, McGill UniversityAbstract This study aims to investigate the beneficial effects of surface retaining elements (SREs) on the mechanical behaviors of bolted rock and roadway stability. 3D printing (3DP) technology is utilized to create rock analogue prismatic specimens for conducting this investigation. Uniaxial compression tests with acoustic emission (AE) and digital image correlation techniques have been conducted on 3DP specimens bolted with different SREs. The results demonstrate that the strength and modulus of elasticity of the bolted specimens show a positive correlation with the area of the SRE; the AE characteristics of the bolted specimens are higher than those of the unbolted specimen, but they decrease with an increase in SRE area, thus further improving the integrity of the bolted specimens. The reinforcement effect of SREs on the surrounding rock of roadways is further analyzed using numerical modelling and field test. The results provide a better understanding of the role of SREs in rock bolting and the optimization of rock bolting design. Furthermore, they verify the feasibility of 3DP for rock analogues in rock mechanics tests.https://doi.org/10.1007/s40789-023-00607-3Roadway stabilitySurface retaining elementSand-powder3D printingRock boltingNumerical modelling |
| spellingShingle | Hao Feng Lishuai Jiang Qingwei Wang Peng Tang Atsushi Sainoki Hani S. Mitri Effect of surface retaining elements on rock stability: laboratory investigation with sand powder 3D printing International Journal of Coal Science & Technology Roadway stability Surface retaining element Sand-powder 3D printing Rock bolting Numerical modelling |
| title | Effect of surface retaining elements on rock stability: laboratory investigation with sand powder 3D printing |
| title_full | Effect of surface retaining elements on rock stability: laboratory investigation with sand powder 3D printing |
| title_fullStr | Effect of surface retaining elements on rock stability: laboratory investigation with sand powder 3D printing |
| title_full_unstemmed | Effect of surface retaining elements on rock stability: laboratory investigation with sand powder 3D printing |
| title_short | Effect of surface retaining elements on rock stability: laboratory investigation with sand powder 3D printing |
| title_sort | effect of surface retaining elements on rock stability laboratory investigation with sand powder 3d printing |
| topic | Roadway stability Surface retaining element Sand-powder 3D printing Rock bolting Numerical modelling |
| url | https://doi.org/10.1007/s40789-023-00607-3 |
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