Theoretical Modeling of Rock Breakage by Hydraulic and Mechanical Tool
Joint Authors
Wang, Liping
Jiang, Hongxiang
Du, Changlong
Liu, Songyong
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-11-09
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Rock breakage by coupled mechanical and hydraulic action has been developed over the past several decades, but theoretical study on rock fragmentation by mechanical tool with water pressure assistance was still lacking.
The theoretical model of rock breakage by mechanical tool was developed based on the rock fracture mechanics and the solution of Boussinesq’s problem, and it could explain the process of rock fragmentation as well as predicating the peak reacting force.
The theoretical model of rock breakage by coupled mechanical and hydraulic action was developed according to the superposition principle of intensity factors at the crack tip, and the reacting force of mechanical tool assisted by hydraulic action could be reduced obviously if the crack with a critical length could be produced by mechanical or hydraulic impact.
The experimental results indicated that the peak reacting force could be reduced about 15% assisted by medium water pressure, and quick reduction of reacting force after peak value decreased the specific energy consumption of rock fragmentation by mechanical tool.
The crack formation by mechanical or hydraulic impact was the prerequisite to improvement of the ability of combined breakage.
American Psychological Association (APA)
Jiang, Hongxiang& Du, Changlong& Liu, Songyong& Wang, Liping. 2014. Theoretical Modeling of Rock Breakage by Hydraulic and Mechanical Tool. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1046533
Modern Language Association (MLA)
Jiang, Hongxiang…[et al.]. Theoretical Modeling of Rock Breakage by Hydraulic and Mechanical Tool. Mathematical Problems in Engineering No. 2014 (2014), pp.1-9.
https://search.emarefa.net/detail/BIM-1046533
American Medical Association (AMA)
Jiang, Hongxiang& Du, Changlong& Liu, Songyong& Wang, Liping. Theoretical Modeling of Rock Breakage by Hydraulic and Mechanical Tool. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1046533
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1046533