The Mechanism and Application of Deep-Hole Precracking Blasting on Rockburst Prevention
Joint Authors
Ouyang, Zhenhua
Qi, Qingxin
Zhao, Shankun
Wu, Baoyang
Zhang, Ningbo
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-05-21
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
The mechanism of preventing rockburst through deep-hole precracking blasting was studied based on experimental test, numerical simulation, and field testing.
The study results indicate that the deep-hole precracking could change the bursting proneness and stress state of coal-rock mass, thereby preventing the occurrence of rockburst.
The bursting proneness of the whole composite structure could be weakened by the deep-hole precracking blasting.
The change of stress state in the process of precracking blasting is achieved in two ways: (1) artificially break the roof apart, thus weakening the continuity of the roof strata, effectively inducing the roof caving while reducing its impact strength; and (2) the dynamic shattering and air pressure generated by the blasting can structurally change the properties of the coal-rock mass by mitigating the high stress generation and high elastic energy accumulation, thus breaking the conditions of energy transfer and rock burst occurrence.
American Psychological Association (APA)
Ouyang, Zhenhua& Qi, Qingxin& Zhao, Shankun& Wu, Baoyang& Zhang, Ningbo. 2015. The Mechanism and Application of Deep-Hole Precracking Blasting on Rockburst Prevention. Shock and Vibration،Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1078229
Modern Language Association (MLA)
Ouyang, Zhenhua…[et al.]. The Mechanism and Application of Deep-Hole Precracking Blasting on Rockburst Prevention. Shock and Vibration No. 2015 (2015), pp.1-7.
https://search.emarefa.net/detail/BIM-1078229
American Medical Association (AMA)
Ouyang, Zhenhua& Qi, Qingxin& Zhao, Shankun& Wu, Baoyang& Zhang, Ningbo. The Mechanism and Application of Deep-Hole Precracking Blasting on Rockburst Prevention. Shock and Vibration. 2015. Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1078229
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1078229