Mechanical Performances of Pressure Arch in Thick Bedrock during Shallow Coal Mining
Joint Authors
Wang, Shuren
Hagan, Paul
Zhao, Yanhai
Wu, Xiaogang
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-10-01
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Due to the periodicity of mine pressure, it can easily lead to a wide-range damage of the overburden rock under shallow coal mining conditions, and the falling of the overburden rock is usually a serious threat to the mining safety.
Based on the monitoring data of mine pressure in a typical shallow coal mine in northern China, the mechanical model of the surrounding rock in the mining field was built and the identification indicators of the pressure arch after coal mining was defined.
Then, the arching mechanism, the stress distribution characteristics in different positions, and the bearing capacity of the pressure arch were analysed, and the evolution characteristics of the pressure arch under shallow horizontal coal mining were verified by numerical simulation and physical experiment.
Results show that there is a core-bearing zone in the pressure arch, and the width of the core zone determines the bearing capacity of the pressure arch.
The evolution of the pressure arch affects the formation and development of the caving arch of the loose zone in the mining field.
The conclusions obtained in the study are of important theoretical value to direct the similar engineering practice.
American Psychological Association (APA)
Wang, Shuren& Wu, Xiaogang& Zhao, Yanhai& Hagan, Paul. 2018. Mechanical Performances of Pressure Arch in Thick Bedrock during Shallow Coal Mining. Geofluids،Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1157320
Modern Language Association (MLA)
Wang, Shuren…[et al.]. Mechanical Performances of Pressure Arch in Thick Bedrock during Shallow Coal Mining. Geofluids No. 2018 (2018), pp.1-13.
https://search.emarefa.net/detail/BIM-1157320
American Medical Association (AMA)
Wang, Shuren& Wu, Xiaogang& Zhao, Yanhai& Hagan, Paul. Mechanical Performances of Pressure Arch in Thick Bedrock during Shallow Coal Mining. Geofluids. 2018. Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1157320
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1157320