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Study on Reasonable Roadway Position of Working Face under Strip Coal Pillar in Rock Burst Mine
Joint Authors
Guo, Zhong-Ping
Yang, Hengze
Chen, Daozhi
Zhang, Fuyu
Du, Zhaowen
Wang, Chao
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-21, 21 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-11-04
Country of Publication
Egypt
No. of Pages
21
Main Subjects
Abstract EN
It is of great significance to study the reasonable position of mining roadway under strip coal pillar for increasing the stability of mining roadway, reducing the waste of resources, and realizing the safety production of working face.
Based on the research background of the working face under the strip coal pillar in Jinqiao Coal Mine of Jining, Shandong Province, through theoretical analysis, similar material simulation experiment, and numerical simulation experiment, the stress distribution law, plastic failure range, and rationality of coal pillar setting in different width sections are systematically studied.
Finally, the tailentry of working face is determined at the position of 5 m from the bottom of strip coal pillar to 1308 goaf.
During the mining period of 1310 working face, the peak value of side abutment pressure is at the position of 3∼4 m; beyond 25 m in front of the coal wall, the deformation of the surrounding rock on the tailentry surface is small.
After entering the advanced support section, the deformation of the two sides is mainly longitudinal crack expansion and local shallow small flakes; however, the roof is complete and stable.
Therefore, the selection of tailentry location and coal pillar width has played a good role.
The research results of this study can provide some reference for similar mine with similar geological and production technical conditions.
American Psychological Association (APA)
Yang, Hengze& Guo, Zhong-Ping& Chen, Daozhi& Wang, Chao& Zhang, Fuyu& Du, Zhaowen. 2020. Study on Reasonable Roadway Position of Working Face under Strip Coal Pillar in Rock Burst Mine. Shock and Vibration،Vol. 2020, no. 2020, pp.1-21.
https://search.emarefa.net/detail/BIM-1212788
Modern Language Association (MLA)
Yang, Hengze…[et al.]. Study on Reasonable Roadway Position of Working Face under Strip Coal Pillar in Rock Burst Mine. Shock and Vibration No. 2020 (2020), pp.1-21.
https://search.emarefa.net/detail/BIM-1212788
American Medical Association (AMA)
Yang, Hengze& Guo, Zhong-Ping& Chen, Daozhi& Wang, Chao& Zhang, Fuyu& Du, Zhaowen. Study on Reasonable Roadway Position of Working Face under Strip Coal Pillar in Rock Burst Mine. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-21.
https://search.emarefa.net/detail/BIM-1212788
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1212788