Experimental and Numerical Studies on Rock Cutting with Saw Blade and Conical Pick Combined Cutting Method
Joint Authors
Zeng, Qingliang
Lu, Zhenguo
Gao, Kuidong
Wang, Zhiwen
Li, Xu
Source
Mathematical Problems in Engineering
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-10-30
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
In the rock cutting process, conical pick wear is often encountered.
In order to restrain this condition, a saw blades and conical pick combined cutting method was put forward.
Saw blades were employed to slit the rock for increasing the free surface, and then the conical pick was used to break the rock.
To research the cutting performance of the new cutting method, the corresponding experimental device and a three-dimensional finite element model are established.
In order to obtain crack propagation and fragment separation and to study the fracture process of the rock plate, a damage constative model and failure mechanism were combined in the numerical model.
The mechanical tests were carried out to achieve the mechanical parameters of the rock.
To investigate different parameters affecting rock plate cutting performance, experiments with different compressive strengths, physical parameters, and cutting depths were carried out.
Moreover, the confining pressures affecting the cutting performance were adopted to simulate deep mining conditions.
The experimental results demonstrated that the peak cutting force shows the exponential positive correlation with compressive strength, thickness of the rock plate, and cutting depth of the conical pick, and exhibits the exponential positive correlation with rock plate height and width.
Besides, the numerical simulation results show that peak cutting force and confining pressure have a binomial relationship.
American Psychological Association (APA)
Lu, Zhenguo& Zeng, Qingliang& Wang, Zhiwen& Li, Xu& Gao, Kuidong. 2019. Experimental and Numerical Studies on Rock Cutting with Saw Blade and Conical Pick Combined Cutting Method. Mathematical Problems in Engineering،Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1195895
Modern Language Association (MLA)
Lu, Zhenguo…[et al.]. Experimental and Numerical Studies on Rock Cutting with Saw Blade and Conical Pick Combined Cutting Method. Mathematical Problems in Engineering No. 2019 (2019), pp.1-14.
https://search.emarefa.net/detail/BIM-1195895
American Medical Association (AMA)
Lu, Zhenguo& Zeng, Qingliang& Wang, Zhiwen& Li, Xu& Gao, Kuidong. Experimental and Numerical Studies on Rock Cutting with Saw Blade and Conical Pick Combined Cutting Method. Mathematical Problems in Engineering. 2019. Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1195895
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1195895