Development of a Model to Predict Vibrations Induced by Blasting Excavation of Deep Rock Masses under High In Situ Stress
During the process of blasting excavation of deep rock masses under high in situ stress, energy produced by the explosive and the strain energy released by rock mass excavation constitute the energy source of vibration. However, in traditional Sadov’s empirical formula, the energy produced by explos...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2020/8817631 |
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| author | Yong Fan Xianze Cui Zhendong Leng Yurong Zhou Junwei Zheng Feng Wang |
| author_facet | Yong Fan Xianze Cui Zhendong Leng Yurong Zhou Junwei Zheng Feng Wang |
| author_sort | Yong Fan |
| collection | DOAJ |
| description | During the process of blasting excavation of deep rock masses under high in situ stress, energy produced by the explosive and the strain energy released by rock mass excavation constitute the energy source of vibration. However, in traditional Sadov’s empirical formula, the energy produced by explosive explosion is only considered which makes the error higher when it is used to predict the blasting-induced vibration peak under the condition of high in situ stress. In this study, energy transformation and distribution mechanisms caused by excavation of deep rock masses were analyzed at first. Then, a prediction model of vibration peak based on the principle of energy balance was established by dimension analysis. Finally, the proposed model was trained and tested with the vibration data monitored during the blasting excavation of deep buried tunnel in Jinping II hydropower station. The result shows that compared with the traditional prediction model, the proposed model has higher fitting correlation coefficient and lower root-mean-square error, which can be better applied to the prediction of vibration induced by blasting excavation of deep rock masses under high in situ stress. |
| format | Article |
| id | doaj-art-d7bbff20237a43b8b6f2a10b4f19ff11 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-d7bbff20237a43b8b6f2a10b4f19ff112025-02-03T01:28:24ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/88176318817631Development of a Model to Predict Vibrations Induced by Blasting Excavation of Deep Rock Masses under High In Situ StressYong Fan0Xianze Cui1Zhendong Leng2Yurong Zhou3Junwei Zheng4Feng Wang5Hubei Key Laboratory of Construction and Management in Hydropower Engineering, China Three Gorges University, Yichang 443002, ChinaHubei Key Laboratory of Construction and Management in Hydropower Engineering, China Three Gorges University, Yichang 443002, ChinaHubei Key Laboratory of Construction and Management in Hydropower Engineering, China Three Gorges University, Yichang 443002, ChinaHubei Key Laboratory of Construction and Management in Hydropower Engineering, China Three Gorges University, Yichang 443002, ChinaHubei Key Laboratory of Construction and Management in Hydropower Engineering, China Three Gorges University, Yichang 443002, ChinaHubei Key Laboratory of Construction and Management in Hydropower Engineering, China Three Gorges University, Yichang 443002, ChinaDuring the process of blasting excavation of deep rock masses under high in situ stress, energy produced by the explosive and the strain energy released by rock mass excavation constitute the energy source of vibration. However, in traditional Sadov’s empirical formula, the energy produced by explosive explosion is only considered which makes the error higher when it is used to predict the blasting-induced vibration peak under the condition of high in situ stress. In this study, energy transformation and distribution mechanisms caused by excavation of deep rock masses were analyzed at first. Then, a prediction model of vibration peak based on the principle of energy balance was established by dimension analysis. Finally, the proposed model was trained and tested with the vibration data monitored during the blasting excavation of deep buried tunnel in Jinping II hydropower station. The result shows that compared with the traditional prediction model, the proposed model has higher fitting correlation coefficient and lower root-mean-square error, which can be better applied to the prediction of vibration induced by blasting excavation of deep rock masses under high in situ stress.http://dx.doi.org/10.1155/2020/8817631 |
| spellingShingle | Yong Fan Xianze Cui Zhendong Leng Yurong Zhou Junwei Zheng Feng Wang Development of a Model to Predict Vibrations Induced by Blasting Excavation of Deep Rock Masses under High In Situ Stress Shock and Vibration |
| title | Development of a Model to Predict Vibrations Induced by Blasting Excavation of Deep Rock Masses under High In Situ Stress |
| title_full | Development of a Model to Predict Vibrations Induced by Blasting Excavation of Deep Rock Masses under High In Situ Stress |
| title_fullStr | Development of a Model to Predict Vibrations Induced by Blasting Excavation of Deep Rock Masses under High In Situ Stress |
| title_full_unstemmed | Development of a Model to Predict Vibrations Induced by Blasting Excavation of Deep Rock Masses under High In Situ Stress |
| title_short | Development of a Model to Predict Vibrations Induced by Blasting Excavation of Deep Rock Masses under High In Situ Stress |
| title_sort | development of a model to predict vibrations induced by blasting excavation of deep rock masses under high in situ stress |
| url | http://dx.doi.org/10.1155/2020/8817631 |
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