Evaluation of blasting parameters for hydraulic tunnels based on multiple monitoring information
Blasting excavation is frequently used in myriads of hydraulic tunnels in Southwest China. To evaluate the effects of blasting parameters on the stability of tunnels and reveal reasonable blasting parameters, a field test on blasting parameters is carried out in typical sections of a diversion tunne...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2024-12-01
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| Series: | Geomatics, Natural Hazards & Risk |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/19475705.2024.2311895 |
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| author | Peiwei Xiao Biao Li Quanfu Ding Rong Yang Xingguo Yang Hongjian Qian Nuwen Xu |
| author_facet | Peiwei Xiao Biao Li Quanfu Ding Rong Yang Xingguo Yang Hongjian Qian Nuwen Xu |
| author_sort | Peiwei Xiao |
| collection | DOAJ |
| description | Blasting excavation is frequently used in myriads of hydraulic tunnels in Southwest China. To evaluate the effects of blasting parameters on the stability of tunnels and reveal reasonable blasting parameters, a field test on blasting parameters is carried out in typical sections of a diversion tunnel at a large hydropower project in Southwest China. Two different charging methods are designed. The multiple monitoring techniques, i.e. blasting vibration test (point), wave velocity test (line), three-dimensional laser scanning (plane), and microseismic monitoring (volume), combined with corresponding criteria are adopted to evaluate the effects of two different blasting parameters on construction safety. Multiple monitoring results well reflect the disturbance of blasting excavation on rock mass. In addition, the effects on rock damage and deformation of two different blasting parameters have some differences. The blasting parameters with less charge in the cut and breaking holes and more charge in the perimeter hole contribute to reducing rock mass damage and deformation. Therefore, the more reasonable blasting scheme is revealed. Present study will provide a new thought for the evaluation and optimization of blasting parameters in hydraulic tunnels. |
| format | Article |
| id | doaj-art-ccd66859fbbc4ac7a33fdca7d482b15a |
| institution | Kabale University |
| issn | 1947-5705 1947-5713 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Geomatics, Natural Hazards & Risk |
| spelling | doaj-art-ccd66859fbbc4ac7a33fdca7d482b15a2024-12-12T18:11:16ZengTaylor & Francis GroupGeomatics, Natural Hazards & Risk1947-57051947-57132024-12-0115110.1080/19475705.2024.2311895Evaluation of blasting parameters for hydraulic tunnels based on multiple monitoring informationPeiwei Xiao0Biao Li1Quanfu Ding2Rong Yang3Xingguo Yang4Hongjian Qian5Nuwen Xu6State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu, Sichuan, ChinaSchool of Geoscience and Technology, Southwest Petroleum University, Chengdu, Sichuan, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu, Sichuan, ChinaChn Energy Investment Group Co., Ltd. Jinshajiang Branch, Kunming, Yunnan, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu, Sichuan, ChinaChn Energy Investment Group Co., Ltd. Jinshajiang Branch, Kunming, Yunnan, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu, Sichuan, ChinaBlasting excavation is frequently used in myriads of hydraulic tunnels in Southwest China. To evaluate the effects of blasting parameters on the stability of tunnels and reveal reasonable blasting parameters, a field test on blasting parameters is carried out in typical sections of a diversion tunnel at a large hydropower project in Southwest China. Two different charging methods are designed. The multiple monitoring techniques, i.e. blasting vibration test (point), wave velocity test (line), three-dimensional laser scanning (plane), and microseismic monitoring (volume), combined with corresponding criteria are adopted to evaluate the effects of two different blasting parameters on construction safety. Multiple monitoring results well reflect the disturbance of blasting excavation on rock mass. In addition, the effects on rock damage and deformation of two different blasting parameters have some differences. The blasting parameters with less charge in the cut and breaking holes and more charge in the perimeter hole contribute to reducing rock mass damage and deformation. Therefore, the more reasonable blasting scheme is revealed. Present study will provide a new thought for the evaluation and optimization of blasting parameters in hydraulic tunnels.https://www.tandfonline.com/doi/10.1080/19475705.2024.2311895Blasting parameter evaluationmultiple monitoringXulong hydropower stationdiversion tunnelrock mass damage |
| spellingShingle | Peiwei Xiao Biao Li Quanfu Ding Rong Yang Xingguo Yang Hongjian Qian Nuwen Xu Evaluation of blasting parameters for hydraulic tunnels based on multiple monitoring information Geomatics, Natural Hazards & Risk Blasting parameter evaluation multiple monitoring Xulong hydropower station diversion tunnel rock mass damage |
| title | Evaluation of blasting parameters for hydraulic tunnels based on multiple monitoring information |
| title_full | Evaluation of blasting parameters for hydraulic tunnels based on multiple monitoring information |
| title_fullStr | Evaluation of blasting parameters for hydraulic tunnels based on multiple monitoring information |
| title_full_unstemmed | Evaluation of blasting parameters for hydraulic tunnels based on multiple monitoring information |
| title_short | Evaluation of blasting parameters for hydraulic tunnels based on multiple monitoring information |
| title_sort | evaluation of blasting parameters for hydraulic tunnels based on multiple monitoring information |
| topic | Blasting parameter evaluation multiple monitoring Xulong hydropower station diversion tunnel rock mass damage |
| url | https://www.tandfonline.com/doi/10.1080/19475705.2024.2311895 |
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