Introduction
Bimonthly, started in 1957
Administrator
Shanxi Provincial Education Department
Sponsor
Taiyuan University of Technology
Publisher
Ed. Office of Journal of TYUT
Editor-in-Chief
SUN Hongbin
ISSN: 1007-9432
CN: 14-1220/N
Administrator
Shanxi Provincial Education Department
Sponsor
Taiyuan University of Technology
Publisher
Ed. Office of Journal of TYUT
Editor-in-Chief
SUN Hongbin
ISSN: 1007-9432
CN: 14-1220/N
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Similar Simulation Test on Deformation and FailureCharacteristics of Deep Roadway under High Geostre
DOI:
10.16355/j.cnki.issn1007-9432tyut.2019.05.012
Received:
Accepted:
abstract:
In this paper,the problem of large deformation and dynamic failure of deep roadway with high in-situ stress is studied.Then,taking a transport roadway with a depth of 847 m in a coal mine as an example,a two-dimensional similarity simulation experiment on the deformation and failure law of roadway under high in-situ stress was carried out.Firstly,the physical and mechanical properties of the overburden and bottom strata of the roadway are obtained through geological survey,and then a two-dimensional similar geological model is established based on the similarity theory.Through the excavation of the roadway,and real-time monitoring of the displacement and stress of the roof,floor and left and right sides of the roadway at different locations,the relationship between the deformation and failure characteristics of the roadway and the time is obtained.The research results of this paper can provide some theoretical support for deep roadway support.
Keywords:
deep roadway;high geostress roadway;deformation and failure;similarity simulation;displacement;stress