Vol.18, No.2, 2022, pp.257-269, doi:10.32604/fdmp.2022.017915
OPEN ACCESS
ARTICLE
Optimization of the Air Deck Blasting Parameters on the Basis of the Holmquist-Johnson-Cook Constitutive Model
  • Zuoming Yin1,*, Xuguang Wang2, Desheng Wang1, Zhiheng Dang1, Jianfeng Shao3
1 School of Civil & Resource Engineering, University of Science and Technology Beijing, Beijing, China
2 Beijing General Research Institute of Mining & Metallurgy, Beijing, China
3 MCC Construction Research Institute Co., Ltd., Beijing, 100082, China
* Corresponding Author: Zuoming Yin. Email:
(This article belongs to this Special Issue: EFD and Heat Transfer III)
Received 16 July 2021; Accepted 26 August 2021; Issue published 16 December 2021
Abstract
The present study considers the so-called air deck blasting, one of the most commonly used techniques for the improvement of blasting efficiency in mining applications. In particular, it aims to improve the operating conditions of large-scale equipment, increase the efficiency of the slope enlarging process, and reduce the mining cost. These objectives are implemented through a two-fold approach where, first, a program for slope enlarging based on the middle air-deck charge blasting-loosening technology is proposed, and second, the physical mechanism responsible for the stress wave attenuation in the rock is analyzed in the framework of a Holmquist–Johnson–Cook constitutive model. Field test results verify that the proposed approach is highly efficient and economical when used in medium-hard rock blasting and thus provides a basis for the practical implementation of slope enlargement for high benches in Open-Pit Mines.
Keywords
Air deck blasting parameters; holmquist–johnson–cook constitutive model; fluid-structure coupling; loosening blasting
Cite This Article
Yin, Z., Wang, X., Wang, D., Dang, Z., Shao, J. (2022). Optimization of the Air Deck Blasting Parameters on the Basis of the Holmquist-Johnson-Cook Constitutive Model. FDMP-Fluid Dynamics & Materials Processing, 18(2), 257–269.
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