A laboratory method to simulate seismic waves induced by underground explosions
The seismic waves induced by underground explosions generate geological hazards affecting deep buried tunnels such as rockbursts and engineering-induced earthquakes. This issue is difficult to study through full-scale testing due to the expense and unpredictable danger. To solve this problem, the au...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-10-01
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| Series: | Journal of Rock Mechanics and Geotechnical Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674775522000440 |
| _version_ | 1828174943540477952 |
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| author | Yuguo Ji Mingyang Wang Jie Li Shuxin Deng Zhihao Li Tianhan Xu Fei Gao |
| author_facet | Yuguo Ji Mingyang Wang Jie Li Shuxin Deng Zhihao Li Tianhan Xu Fei Gao |
| author_sort | Yuguo Ji |
| collection | DOAJ |
| description | The seismic waves induced by underground explosions generate geological hazards affecting deep buried tunnels such as rockbursts and engineering-induced earthquakes. This issue is difficult to study through full-scale testing due to the expense and unpredictable danger. To solve this problem, the authors developed experimental apparatus and presented a laboratory method to simulate seismic waves induced by underground explosions. In this apparatus, a combined structure of a diffusive-shaped water capsule and a special-shaped oil capsule was designed. This structure can provide an applied confining stress and freely transmit the stress wave generated by external impact. Therefore, the coupled loading of in situ stress and seismic waves induced by underground explosions in the deep rock mass was simulated. The positive pressure time and peak value of the stress wave could be adjusted by changing the pulse-shaper and the initial impact energy. The obtained stress waves in the experiments correspond to that generated by 0.15–120 kt of TNT equivalent explosion at a scaled distance of 89.9–207.44 m/kt1/3. |
| first_indexed | 2024-04-12T04:20:09Z |
| format | Article |
| id | doaj.art-7e135cb7fa7642b28c0a1d1522d58231 |
| institution | Directory Open Access Journal |
| issn | 1674-7755 |
| language | English |
| last_indexed | 2024-04-12T04:20:09Z |
| publishDate | 2022-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Rock Mechanics and Geotechnical Engineering |
| spelling | doaj.art-7e135cb7fa7642b28c0a1d1522d582312022-12-22T03:48:15ZengElsevierJournal of Rock Mechanics and Geotechnical Engineering1674-77552022-10-0114515141530A laboratory method to simulate seismic waves induced by underground explosionsYuguo Ji0Mingyang Wang1Jie Li2Shuxin Deng3Zhihao Li4Tianhan Xu5Fei Gao6School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, ChinaSchool of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China; State Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, Army Engineering University of PLA, Nanjing, 210007, ChinaSchool of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China; State Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, Army Engineering University of PLA, Nanjing, 210007, China; Corresponding author. School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China.School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, ChinaState Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, Army Engineering University of PLA, Nanjing, 210007, ChinaState Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, Army Engineering University of PLA, Nanjing, 210007, ChinaSchool of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, ChinaThe seismic waves induced by underground explosions generate geological hazards affecting deep buried tunnels such as rockbursts and engineering-induced earthquakes. This issue is difficult to study through full-scale testing due to the expense and unpredictable danger. To solve this problem, the authors developed experimental apparatus and presented a laboratory method to simulate seismic waves induced by underground explosions. In this apparatus, a combined structure of a diffusive-shaped water capsule and a special-shaped oil capsule was designed. This structure can provide an applied confining stress and freely transmit the stress wave generated by external impact. Therefore, the coupled loading of in situ stress and seismic waves induced by underground explosions in the deep rock mass was simulated. The positive pressure time and peak value of the stress wave could be adjusted by changing the pulse-shaper and the initial impact energy. The obtained stress waves in the experiments correspond to that generated by 0.15–120 kt of TNT equivalent explosion at a scaled distance of 89.9–207.44 m/kt1/3.http://www.sciencedirect.com/science/article/pii/S1674775522000440Laboratory methodSeismic waveUnderground explosionDeep rock massCoupled loadingExperimental apparatus |
| spellingShingle | Yuguo Ji Mingyang Wang Jie Li Shuxin Deng Zhihao Li Tianhan Xu Fei Gao A laboratory method to simulate seismic waves induced by underground explosions Journal of Rock Mechanics and Geotechnical Engineering Laboratory method Seismic wave Underground explosion Deep rock mass Coupled loading Experimental apparatus |
| title | A laboratory method to simulate seismic waves induced by underground explosions |
| title_full | A laboratory method to simulate seismic waves induced by underground explosions |
| title_fullStr | A laboratory method to simulate seismic waves induced by underground explosions |
| title_full_unstemmed | A laboratory method to simulate seismic waves induced by underground explosions |
| title_short | A laboratory method to simulate seismic waves induced by underground explosions |
| title_sort | laboratory method to simulate seismic waves induced by underground explosions |
| topic | Laboratory method Seismic wave Underground explosion Deep rock mass Coupled loading Experimental apparatus |
| url | http://www.sciencedirect.com/science/article/pii/S1674775522000440 |
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