A Novel Experimental Technique to Simulate Shock Behaviour and Bursting Failure of Roadways
Joint Authors
Dou, Lin-Ming
Cai, Wu
Fan, Chaojun
Wang, Guifeng
Gong, Siyuan
Li, Geng
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-11-20
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Rockburst is a sudden and dynamic failure of rock that can cause serious injury to miners and damage to the underground excavations.
Stress path, dynamic disturbance, and support system play important and different roles in the generation processes of rockbursts, resulting rockbursts with variety of reasons and failure modes.
A test facility that was capable of simulating such factors was developed to study shock behaviour and bursting failure of roadways.
The results demonstrate that the modeled roadway was in good condition and retained a shock resistance capacity after three drop loads.
Until the acceleration amplitude increased to a certain level at the time of the fourth dynamic loading, sudden bursting failure of modeled roadway occurred.
Many large fragments ejected from the upper and middle regions of the roadway, accompanied with loud noise.
A deep pit was observed after the bursting failure.
The axial of the fan-shaped pit had an angle above the vertical.
In addition, shock behaviour of the modeled roadway had been changed by the anchor-net support.
Significant differences appeared between the acceleration signals measured in two roadway sections with and without the anchor-net support.
The acceleration magnitude of the supported roadway section was strongly reduced by the presence of the anchor-net support.
Even when the unsupported roadway section underwent a sudden injection failure, the roadway with anchor-net support was in good condition.
This study may eventually lead to a methodology for studying the rockbursting resistance capacity of underground roadways.
American Psychological Association (APA)
Wang, Guifeng& Gong, Siyuan& Dou, Lin-Ming& Li, Geng& Cai, Wu& Fan, Chaojun. 2019. A Novel Experimental Technique to Simulate Shock Behaviour and Bursting Failure of Roadways. Shock and Vibration،Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1211706
Modern Language Association (MLA)
Wang, Guifeng…[et al.]. A Novel Experimental Technique to Simulate Shock Behaviour and Bursting Failure of Roadways. Shock and Vibration No. 2019 (2019), pp.1-13.
https://search.emarefa.net/detail/BIM-1211706
American Medical Association (AMA)
Wang, Guifeng& Gong, Siyuan& Dou, Lin-Ming& Li, Geng& Cai, Wu& Fan, Chaojun. A Novel Experimental Technique to Simulate Shock Behaviour and Bursting Failure of Roadways. Shock and Vibration. 2019. Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1211706
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1211706