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Hybrid finite-discrete element modelling of dynamic fracture and resultant fragment casting and muck-piling by rock blast

Citation

An, HM and Liu, HY and Han, H and Zheng, X and Wang, XG, Hybrid finite-discrete element modelling of dynamic fracture and resultant fragment casting and muck-piling by rock blast, Computers and Geotechnics, 81 pp. 322-345. ISSN 0266-352X (2017) [Refereed Article]

Copyright Statement

Copyright 2016 Elsevier Ltd. All rights reserved.

DOI: doi:10.1016/j.compgeo.2016.09.007

Abstract

A state-of-the-art review is conducted to highlight the fracture mechanism in rock blast and advantages and limitations of various methods in modelling it. A hybrid finite-discrete element method (FEM-DEM) is implemented to simulate rock fracture and resultant fragment muck-piling in various blasting scenarios. The modelled crushed, cracked and long radial crack zones are compared with those in literatures to calibrate the hybrid FEM-DEM. Moreover, the hybrid modelling reproduces the rock fragmentation process during blasting. It is concluded that the hybrid FEM-DEM is superior to continuous and discontinuous methods in terms of modelling dynamic fracture of rock under blast-induced impact load.

Item Details

Item Type:Refereed Article
Keywords:hybrid FEM-DEM, dynamic fracture, rock blast, numerical method, failure mechanism, fragment muck-piling
Research Division:Engineering
Research Group:Civil Engineering
Research Field:Civil Geotechnical Engineering
Objective Division:Construction
Objective Group:Construction Processes
Objective Field:Civil Construction Processes
Author:An, HM (Mr Huaming An)
Author:Liu, HY (Dr Hong Liu)
Author:Han, H (Mr Haoyu Han)
Author:Zheng, X (Dr Xin Zheng)
ID Code:111788
Year Published:2017 (online first 2016)
Web of Science® Times Cited:1
Deposited By:Engineering
Deposited On:2016-10-07
Last Modified:2017-11-06
Downloads:0

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