›› 2009, Vol. 30 ›› Issue (4): 1186-1190.

• Numerical Analysis • Previous Articles     Next Articles

Study of orefragment size prediction in block caving based on Monte Carlo stochastic simulation

LI Xiang，JIA Ming-tao，WANG Li-guan，BAI Yun-fei   

  1. School of Resources and Safety Engineering, Central South University, Changsha 410083, China
  • Received:2008-04-15 Online:2009-04-10 Published:2011-01-30

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Abstract:

A simulation of the joint network in mining area III of a nickel mine in China is made based on the Monte Carlo method and by using joint plane space geometrical data measured in-situ. According to the above theory, a 3D fragmentation size prediction software named MAKEBLOCK is developed and used in the forecast and analysis of ore fragmentation size distribution of the mining area. The result shows that the most of the ore body blocks are discoid and blocky, with block size less than 0.2 m3 and equivalent dimension from 0.2m to 0.5m. The predicting results can be used as the basis for design and practice of block caving.

Key words: block caving method, Monte Carlo method, joint, fragmentation prediction

CLC Number: 

  • O 14
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