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Influence of Decoupled Charge Structure and Filler on the Blasting Effect
Joint Authors
Zhang, Yiping
Luo, Yi
Wan, Sipeng
Tian, Yingxiang
Ding, Huanchao
Zhang, Xiaoxiao
Fang, Chengcheng
Zhang, Yuyao
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-12-07
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
This study compared models of specimens with different filler media and decoupled charge structures in terms of the blasting effect.
The test system combined a high-speed camera and high-speed static strain test analyzer.
A physical model of a concrete single-borehole decoupled charge structure was designed to study the geometric elements of the blasting funnel, flyrock launch velocity, peak strain values, and distribution of the gravel lumpiness.
The experimental results showed that for the same decoupling coefficient, when expandable polystyrene foam (EPS) was used as the filling medium, the radius, depth, and volume of the blasting funnel of the model specimen were larger, the flyrock launch velocity was slower, the peak stress of the specimen was higher, and the distribution of gravel lumpiness was more even.
The relationship between the experimental index and the decoupling coefficient follows the changing trend of first increasing and then decreasing or first decreasing and then increasing.
With air and EPS as the filling media, the concrete model specimens could achieve optimal blasting effects at decoupling coefficients of 1.83 and 1.69, respectively.
The results confirm the feasibility and practicability of using EPS as a filler and can provide guidance and an experimental basis for the selection of the decoupling coefficient and filling medium in blasting engineering.
American Psychological Association (APA)
Zhang, Yiping& Luo, Yi& Wan, Sipeng& Tian, Yingxiang& Ding, Huanchao& Zhang, Xiaoxiao…[et al.]. 2020. Influence of Decoupled Charge Structure and Filler on the Blasting Effect. Shock and Vibration،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1213048
Modern Language Association (MLA)
Zhang, Yiping…[et al.]. Influence of Decoupled Charge Structure and Filler on the Blasting Effect. Shock and Vibration No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1213048
American Medical Association (AMA)
Zhang, Yiping& Luo, Yi& Wan, Sipeng& Tian, Yingxiang& Ding, Huanchao& Zhang, Xiaoxiao…[et al.]. Influence of Decoupled Charge Structure and Filler on the Blasting Effect. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1213048
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1213048