Experimental study on prediction model for maximum rebound ratio

Wei Dong Lei, Jun Teng, A. Hefny, Jian Zhao, Jiong Guan

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1 Citation (Scopus)

Abstract

The proposed prediction model for estimating the maximum rebound ratio was applied to a field explosion test, Mandai test in Singapore. The estimated possible maximum peak particle velocities(PPVs) were compared with the field records. Three of the four available field-recorded PPVs lie exactly below the estimated possible maximum values as expected, while the fourth available field-recorded PPV lies close to and a bit higher than the estimated maximum possible PPV. The comparison results show that the predicted PPVs from the proposed prediction model for the maximum rebound ratio match the field-recorded PPVs better than those from two empirical formulae. The very good agreement between the estimated and field-recorded values validates the proposed prediction model for estimating PPV in a rock mass with a set of joints due to application of a two dimensional compressional wave at the boundary of a tunnel or a borehole.

Original languageEnglish
Pages (from-to)115-119
Number of pages5
JournalJournal of Central South University of Technology
Volume14
Issue number1
DOIs
Publication statusPublished - 1 Jan 2007
Externally publishedYes

Keywords

  • Blasting wave
  • Field explosion test
  • Joint stiffness
  • Maximum rebound ratio

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