Development of a Model to Predict Vibrations Induced by Blasting Excavation of Deep Rock Masses under High In Situ Stress
Joint Authors
Zhou, Yurong
Leng, Zhendong
Cui, Xianze
Fan, Yong
Zheng, Junwei
Wang, Feng
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-11-02
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
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.
American Psychological Association (APA)
Fan, Yong& Cui, Xianze& Leng, Zhendong& Zhou, Yurong& Zheng, Junwei& Wang, Feng. 2020. Development of a Model to Predict Vibrations Induced by Blasting Excavation of Deep Rock Masses under High In Situ Stress. Shock and Vibration،Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1212640
Modern Language Association (MLA)
Fan, Yong…[et al.]. Development of a Model to Predict Vibrations Induced by Blasting Excavation of Deep Rock Masses under High In Situ Stress. Shock and Vibration No. 2020 (2020), pp.1-14.
https://search.emarefa.net/detail/BIM-1212640
American Medical Association (AMA)
Fan, Yong& Cui, Xianze& Leng, Zhendong& Zhou, Yurong& Zheng, Junwei& Wang, Feng. Development of a Model to Predict Vibrations Induced by Blasting Excavation of Deep Rock Masses under High In Situ Stress. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1212640
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1212640