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Estimation of rock fragmentation in bench blasting using numerical simulation

  • Sang Ho Cho*
  • , Masaaki Nishi
  • , Masaaki Yamamoto
  • , Masaji Kato
  • , Katsuhiko Kaneko
  • *Corresponding author for this work
  • Hokkaido University

Research output: Contribution to journalConference articlepeer-review

Abstract

This paper presents a numerical simulation method to predict rock fragmentation and to verify a fracture mechanism by bench blasting. The rock fragmentation, which has been used as a means of the index to estimate the effect of bench blasting, affects the expenses for loading, conveyance and crushing of blasting muck piles. The developed numerical simulation method is based on the finite element method and fracture mechanics and includes the re-meshing procedure to express the fracture process of the rock mass. This paper discusses a procedure for a determination of size distributions of the results, which were calculated by numerical simulation, including the fines.

Original languageEnglish
Pages (from-to)187-196
Number of pages10
JournalProceedings of the Annual Conference on Explosives and Blasting Technique
VolumeI
StatePublished - 2002
Event28th Annual Conference on Expolsives and Blasting Technique - Las Vegas, NV, United States
Duration: 2002.02.102002.02.13

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