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Modern Mining ›› 2011, Vol. 27 ›› Issue (3): 9-11.

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Numerical Simulation on Blasting Effect of Different Charge Length in Blasting of a Open Pit Coal Mine

Yuan Shaoguo1,Zang Jianling1,Wang Li1,Zhou Lianchun1,2,Wang Ruizhi1   

  1. 1. Inner Mongolia University of Science & Technology;2.Shenhua Wuhai Energy Co.,Ltd
  • Online:2011-03-08 Published:2011-03-10

Abstract: Blasting effect of different charge length were simulated on fixed parameters like pitch of holes, distance between two rows, aperture by LS-DYNA. Effect comparison of charge length 56cm and 64cm were done separately aim at Von Mises Stress,Y-displacement, Y-velocity which the characterized rock crushing effect is much direct, and finally the reasonable charge length was confirmed.

Key words: LS-DYNA, Charge length, Numerical simulation