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现代矿业 ›› 2011, Vol. 27 ›› Issue (3): 9-11.

• 采选工程 • 上一篇    下一篇

某露天煤矿爆破中不同装药长度爆破效果数值模拟

袁绍国1,臧建领1,王礼1,周连春1,2,王瑞智1   

  1. 1.内蒙古科技大学;2.神华乌海能源有限责任公司
  • 出版日期:2011-03-08 发布日期:2011-03-10

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

摘要: 在既定的孔距、排距、孔径等参数下,利用LS-DYNA模拟了不同装药长度的爆破效果。针对表征岩石破碎效果较为直接的Von Mises应力、Y方向位移、Y方向速度分别进行56 cm和64 cm装药长度的效果对比,从而确定了合理的装药长度。

关键词: LS-DYNA, 装药长度, 数值模拟

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