Numerical study on blasting response of EPS foam uncoupled charge in rock mass

Wen Jing Yang, Zhi Liang Wang

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Due to the excellent characteristics of EPS foam, the numerical simulation of the blast response with columnar explosive in infinite rock mass was made based on the explicit dynamic analysis software LS-DYNA. The effective stresses in the rock blast uncoupled with three foam densities were compared to inspect the effect of the physical properties of EPS foam on blasting effects. Using the EPS foam of ρ0=21.0 kg/m3, the blasting response under six different uncoupled coefficients were numerically investigated, and the effective stress field around blasthole, the hydrostatic pressure, the speed and acceleration attenuation laws were obtained.

Original languageEnglish (US)
Pages (from-to)425-430
Number of pages6
JournalMeitan Xuebao/Journal of the China Coal Society
Volume36
Issue numberSUPPL. 2
StatePublished - Sep 1 2011
Externally publishedYes

Keywords

  • Blast
  • EPS foam
  • Rock mass
  • Uncoupled coefficient

ASJC Scopus subject areas

  • Fuel Technology
  • Geotechnical Engineering and Engineering Geology
  • Energy Engineering and Power Technology
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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