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Study on the attenuation parameters of blasting vibration velocity in jointed rock masses

  • Chong YuEmail author
  • Haozhen Yue
  • Haibo Li
  • Hong Zuo
  • Shouchun Deng
  • Bo Liu
Original Paper
  • 54 Downloads

Abstract

Based on the rock mass quality classification, this paper proposes a new prediction formula for the attenuation parameters of blasting vibration velocity in jointed rock masses. A parametric sensitivity study is also conducted while considering a variety of influence factors, including joint angle, joint spacing, and joint stiffness. Compared to the existing blast-related standard in China, in which the attenuation parameters are merely derived from rock hardness, without considering the joint characteristics of rock masses, the proposed prediction formula is proved to be a more promising approach to carry out accurate blasting design and blasting safety assessment.

Keywords

Jointed rock masses Peak particle velocity Velocity attenuation Field blast test Numerical analysis 

Notes

Acknowledgements

The authors are thankful for the financial assistance from the National Natural Science Foundation of China (NSFC, authorizing nos. 51439008, 41302239, 41672311, and 41525009). We gratefully acknowledge all of the support in the research work.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil MechanicsChinese Academy of SciencesWuhanChina
  2. 2.University of Chinese Academy of SciencesBeijingChina

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