Numerical procedure for modelling dynamic fracture of rock by blasting

Liu, HY, Williams, DJ, Pedroso, DM and Liang, WM (2009). Numerical procedure for modelling dynamic fracture of rock by blasting. In: Chun'an Tang, Controlling Seismic Hazard and Sustainable Development of Deep Mines: 7th International Symposium on Rockburst and Seismicity in Mines (Rasim7) , Vol 1 and 2. 7th International Symposium on Rockburst and Seismicity in Mines, Dalian, China, (1551-1560). AUG 21-23, 2009.


Author Liu, HY
Williams, DJ
Pedroso, DM
Liang, WM
Title of paper Numerical procedure for modelling dynamic fracture of rock by blasting
Conference name 7th International Symposium on Rockburst and Seismicity in Mines
Conference location Dalian, China
Conference dates AUG 21-23, 2009
Proceedings title Controlling Seismic Hazard and Sustainable Development of Deep Mines: 7th International Symposium on Rockburst and Seismicity in Mines (Rasim7) , Vol 1 and 2
Journal name Controlling Seismic Hazard and Sustainable Development of Deep Mines: 7th International Symposium On Rockburst and Seismicity in Mines (rasim7), Vol 1 and 2
Place of Publication New Jersey, U.S.A.
Publisher Rinton Press
Publication Year 2009
Year available 2009
Sub-type Fully published paper
ISBN 978-1-58949-058-1
Editor Chun'an Tang
Start page 1551
End page 1560
Total pages 10
Collection year 2010
Language eng
Abstract/Summary A generic nonlinear and dynamic finite element modelling technique is implemented to simulate rock fragmentation by blasting. The element elimination method, together with a brittle failure material model, is used as a means to simulate the initiation and growth of fractures in the rock under the effect of a blast-induced dynamic pressure pulse. The blasthole pressure profile after blasting is described using an equation of state, incorporating parameters relating volume, energy and pressure of detonation. Blasting a single borehole in an unbounded rock medium and in a rock mass with one free surface is firstly modelled and compared with the published literatures to calibrate the developed modelling procedure. The method is then applied to investigate simultaneous blasting and consecutive blasting with various detonation delays, in order to improve blast efficiency.
Subjects E1
090501 Civil Geotechnical Engineering
870401 Civil Construction Processes
Q-Index Code E1
Q-Index Status Confirmed Code

 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 0 times in Thomson Reuters Web of Science Article
Google Scholar Search Google Scholar
Created: Mon, 23 Nov 2009, 15:25:37 EST