Numerical simulation of rock fragmentation during cutting by conical picks under confining pressure
| dc.contributor.author | Li, Xuefeng | |
| dc.contributor.author | Wang, Shibo | |
| dc.contributor.author | Ge, Shirong | |
| dc.contributor.author | Malekian, Reza | |
| dc.contributor.author | Li, Zhixiong | |
| dc.date.accessioned | 2018-08-06T08:56:14Z | |
| dc.date.issued | 2017-12 | |
| dc.description.abstract | In this article, the effect of confining pressure on rock fragmentation process during cutting was investigated by numerical simulation with a discrete element method (DEM). Four kinds of sandstones with different physical properties were simulated in the rock cutting models under different confining pressures. The rock fragmentation process, the cutting force, and the specific energy under different confining pressures were analyzed. With the increase in confining pressure and rock strength, the vertical propagation of cracks was restrained. Rock samples were compacted and strengthened by confining pressure resulting in the increase of the cutting force. The specific energy of rock cutting linearly increased with the increase of the confining pressure ratio. | en_ZA |
| dc.description.department | Electrical, Electronic and Computer Engineering | en_ZA |
| dc.description.embargo | 2018-12-01 | |
| dc.description.librarian | hj2018 | en_ZA |
| dc.description.sponsorship | The National Basic Research Program of China (2014CB046301), the National Natural Science Foundation of China (U1510116, 51304190), the Key Program of Shanxi Coal Basic (MJ2014-05), the Science and Technology Project of Jiangsu Province (BK20140051), a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD). | en_ZA |
| dc.description.uri | https://www.journals.elsevier.com/comptes-rendus-mecanique | en_ZA |
| dc.identifier.citation | Li, X., Wang, S., Ge, S. et al. 2017, 'Numerical simulation of rock fragmentation during cutting by conical picks under confining pressure', Comptes Rendus Mécanique, vol. 345, no. 12, pp. 890-902. | en_ZA |
| dc.identifier.issn | 1631-0721 | |
| dc.identifier.uri | http://hdl.handle.net/2263/66106 | |
| dc.language.iso | en | en_ZA |
| dc.publisher | Elsevier | en_ZA |
| dc.rights | © 2017 Académie des sciences. Published by Elsevier Masson SAS. All rights reservved. Notice : this is the author’s version of a work that was accepted for publication in Comptes Rendus Mécanique. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Comptes Rendus Mécanique, vol. 345, no. 12, pp. 890-902. 2018, doi : 10.1016/j.crme.2017.09.004. | en_ZA |
| dc.subject | Rock fragmentation | en_ZA |
| dc.subject | Cutting | en_ZA |
| dc.subject | Discrete element method (DEM) | en_ZA |
| dc.subject | Sandstones | en_ZA |
| dc.subject | Confining pressure | en_ZA |
| dc.subject | Deep mine | en_ZA |
| dc.subject | Conical pick | en_ZA |
| dc.title | Numerical simulation of rock fragmentation during cutting by conical picks under confining pressure | en_ZA |
| dc.type | Postprint Article | en_ZA |