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Journal of Failure Analysis and Prevention
Erschienen in: Journal of Failure Analysis and Prevention 1/2018

01.02.2018 | Technical Article---Peer-Reviewed

Simulation of Sidewall Failure in Coal Mine Roadways Using an Extended Continuous Joint Model

verfasst von: Xian-Jie Hao, Yi-Xin Zhao, Yu-Lin Li, Yan-Ding Guo, Bo Ren

Erschienen in: Journal of Failure Analysis and Prevention | Ausgabe 1/2018

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Abstract

Coal is well developed with beddings, and the beddings play an important role in the stability of tunnel stability of coal mine. This study focused on jointed rock mass with two sets of joint and proposed an extended ubiquitous model and associated numerical implementation accounting for joint spacing to represent geometric features of coal. The failure criteria of two sets of joint proposed in this paper not only accounted for joint spacing, but also contained the ubiquitous joint model. This extended theory was validated against the discontinuous deformation analysis method, the plane of weakness theory and experimental results for jointed coal with different joint fabric. The model is also used to analyze tunnel stability of roadways in coal mine with different joint spacing. The ubiquitous joint model could simulate jointed coal with small joint spacing, but for that with larger joint spacing, the ubiquitous joint model is not applicable and the joint model containing joint spacing proposed by this paper should be used. A series of comparisons demonstrated that the proposed model was capable of considering the influence of joint spacing on jointed coal tunnel with two sets of joint.
Vorheriger Artikel Hazard-Based Design of the Bow-Tie Method to Prevent and Mitigate Mine Accidents
Nächster Artikel Use of Eddy Current Conductivity and Hardness Testing to Evaluate Heat Damage in Aluminum Alloys

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Metadaten
Titel
Simulation of Sidewall Failure in Coal Mine Roadways Using an Extended Continuous Joint Model
verfasst von
Xian-Jie Hao
Yi-Xin Zhao
Yu-Lin Li
Yan-Ding Guo
Bo Ren
Publikationsdatum
01.02.2018
Verlag
Springer US
Erschienen in
Journal of Failure Analysis and Prevention / Ausgabe 1/2018
Print ISSN: 1547-7029
Elektronische ISSN: 1864-1245
DOI
https://doi.org/10.1007/s11668-017-0371-7

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