![](/images/graphics-bg.png)
A Roadheader-Assisted Coal Cutter Based on Tensile Failure Mechanism of Coal
Joint Authors
Liu, Bo
Wang, Zhiliu
Xu, Wei
Yu, Zhiwei
Yan, Zhendong
Yao, Biao
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-01-14
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
This paper proposes a new roadheader-assisted coal cutter (RACC) based on the tensile failure mechanism of coal.
An innovative mining method, called the cutting inside and spalling outside mining (CISOM) method, is developed based on this new RACC.
The mechanical model is established, and the working mechanism of the new CISOM method is illustrated using a column model and a beam model.
The mechanical models reveal that the tensile stress causes greater deflection than compressive stress.
The deflection and mining width demonstrates a quadratic relationship.
To understand the stratum behaviors and improve mining efficiency, the stability of a working face owned by Jincheng Coal Mining Group in Shanxi is analyzed using UDEC numerical simulation.
Numerical results indicate that the optimal values of the parameter are 0.8 m width for the inside cutting and 0.4 m width for the outside spalling at #1305 working face.
The newly developed RACC was successfully applied at #1305 working face.
The field results showed that the recovery rate of CISOM method is over 90%; i.e., it is improved by 20% in comparison with the traditional method.
American Psychological Association (APA)
Liu, Bo& Wang, Zhiliu& Xu, Wei& Yu, Zhiwei& Yan, Zhendong& Yao, Biao. 2019. A Roadheader-Assisted Coal Cutter Based on Tensile Failure Mechanism of Coal. Geofluids،Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1154533
Modern Language Association (MLA)
Liu, Bo…[et al.]. A Roadheader-Assisted Coal Cutter Based on Tensile Failure Mechanism of Coal. Geofluids No. 2019 (2019), pp.1-10.
https://search.emarefa.net/detail/BIM-1154533
American Medical Association (AMA)
Liu, Bo& Wang, Zhiliu& Xu, Wei& Yu, Zhiwei& Yan, Zhendong& Yao, Biao. A Roadheader-Assisted Coal Cutter Based on Tensile Failure Mechanism of Coal. Geofluids. 2019. Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1154533
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1154533