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A New Mathematical Model for Predicting the Surface Vibration Velocity on the Step Topography
Joint Authors
Guo, Qifeng
Wu, Xu
Zhang, Yunpeng
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-11-14
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
In order to control production blasting and optimize mining operation, it is important to study the step topography vibration amplification and attenuation effect in the open-pit mine.
Surface particle vibration velocity attenuation characteristics, the formation, and change rules of the terrain effect were studied by analyzing the field measured data.
Results show that local amplification effect and local attenuation amplification effect of particle vibration velocity are obvious.
Amplification effect associates with bench height, and the attenuation effect is closely related with the distance from the vibration source and distance from the top.
With the increase of elevation, vibration magnification of the particle on the top was 1.1∼1.4.
Because of the influence of the terrain effect, particle vibration velocity on the slope toe was obviously inhibitory.
Based on the measured data, elevation amplification factor and clamping effect factor which influence blasting vibration velocity are put forward, and a new mathematical model considering the attenuation coefficient, the elevation amplification coefficient, and the clamping effect coefficient for predicting the blasting vibration velocity of the step topography is further improved.
The regression analysis results show that the fitting coefficient of determination of the new prediction model is 0.8152 in horizontal and 0.8902 in vertical, respectively, and the prediction error is less than 20%, which is much better than other formulas.
This new model provides effective reference for blasting seismic wave propagation law research of slope engineering.
American Psychological Association (APA)
Wu, Xu& Guo, Qifeng& Zhang, Yunpeng. 2018. A New Mathematical Model for Predicting the Surface Vibration Velocity on the Step Topography. Shock and Vibration،Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1215487
Modern Language Association (MLA)
Wu, Xu…[et al.]. A New Mathematical Model for Predicting the Surface Vibration Velocity on the Step Topography. Shock and Vibration No. 2018 (2018), pp.1-8.
https://search.emarefa.net/detail/BIM-1215487
American Medical Association (AMA)
Wu, Xu& Guo, Qifeng& Zhang, Yunpeng. A New Mathematical Model for Predicting the Surface Vibration Velocity on the Step Topography. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1215487
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1215487