Comparative analysis of simulation explosive methods in coupling charge

Tao Yin
School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, China
Fengzhuang Zhang
School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, China
Huayong Guan
School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, China
Ziru Guo
School of Chemical and Blasting Engineering, Anhui University of Science and Technology, Huainan 232001, China
Chuanbo Zhou
Faculty of Engineering, China University of Geosciences, Wuhan 430074, China
Hongwei Li
School of Chemical and Blasting Engineering, Anhui University of Science and Technology, Huainan 232001, China

Article ID: 4336

Keywords: coupling charge, equivalent amplified explosive, explosive simulation, blast load, vibration attenuation law

Abstract

The accuracy of numerical simulation for blasting behaviors is largely determined by explosive simulation methods. An equivalent amplified explosives method (method 2) for simulating explosives is proposed in this paper. A numerical model for large-diameter low-detonation-velocity explosives is developed to match the same total energy release in rock mass as small-diameter high-detonation-velocity explosives. Compared with existing equivalent methods that apply simplified blast vibration load curves to blast hole walls (method 3) and the plane of center line of blast holes (method 4), the proposed method can accurately characterize the detonation process of explosives and the thermodynamic properties of detonation products. The requirements and characteristics of four different explosive simulation methods are analyzed. Simulations of the blasting of open-pit iron mines were conducted via ANSYS/LS-DYNA, and the simulated vibration velocities obtained were compared with measured velocities. The results showed that field-measured vibration velocities were generally larger than numerical values from all four methods. Specifically, the fluid–structure coupling algorithm (method 1) required the most meshing work and is applicable to few blast holes and near-field analysis. Method 2 is suitable for simulating numerous blast holes and for studying and analyzing the middle and far regions of blast holes. Method 3 is applicable for simulating a few blast holes and for analyzing the middle and far regions of blast holes. Method 4 is also suitable for studying the middle and far regions of the blast holes. These results provide a reference for the numerical simulations of blasting processes under similar conditions.

Published

2026-08-15

How to Cite

Yin, T., Zhang, F., Guan, H., Guo, Z., Zhou, C., & Li, H. (2026). Comparative analysis of simulation explosive methods in coupling charge. Sound & Vibration, 60(5). https://doi.org/10.59400/sv4336

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Vol. 60 No. 5 (2026)

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Article

This work is licensed under a Creative Commons Attribution 4.0 International License.

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