Field monitoring and numerical analysis of blast-induced air shock wave propagation in Y-shaped metal mine tunnels

IF 1.8 4区工程技术 Q3 MECHANICS

Shock Waves Pub Date : 2026-10-05 DOI:10.1007/s00193-026-01276-2

Y. Long, Y. Ye, Y. Huang, B. Li, J. Jiang, T. Lei, W. Zhao

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引用次数: 0

Abstract

Given the inadequate understanding of blast-induced air shock wave propagation mechanisms in geometrically complex underground tunnels within metal mines, this study conducted field monitoring using iSD-404 testers and IEPE sensors, combined with ANSYS/LS-DYNA simulation technology, to systematically study the dynamic characteristics of air shock waves in Y-shaped tunnels and quantify the overpressure characteristics and attenuation rate of air shock waves, revealing that Y-shaped configurations achieve superior energy dissipation compared to straight or turning tunnels. Moreover, closed bifurcations were found to amplify pressure peaks to hazardous levels via wave reflection, while open boundaries promoted effective pressure venting. Parametric analysis further demonstrated that bifurcation angles of 75\(^{\circ }\) optimize shock wave energy dispersion, whereas bifurcation lengths exceeding 60 m have negligible impact on peak overpressure attenuation. These findings provide a scientific basis for the optimization of tunnel geometry and protective system design in underground mining operations.

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y形金属矿山巷道爆破空气冲击波传播的现场监测与数值分析

针对金属矿山几何形状复杂的地下巷道爆破空气冲击波传播机制认识不足的问题，本研究采用iSD-404试验机和IEPE传感器进行现场监测，结合ANSYS/LS-DYNA仿真技术，系统研究y形巷道中空气冲击波的动态特性，量化空气冲击波的超压特性和衰减速率。结果表明，与直隧道或转弯隧道相比，y形隧道具有更好的能量耗散。此外，封闭的分岔通过波反射将压力峰值放大到危险水平，而开放的边界促进了有效的压力释放。参数分析进一步表明，分叉角为75 \(^{\circ }\)时冲击波能量弥散最优，而分叉长度超过60 m时对峰值超压衰减的影响可以忽略不计。研究结果为地下开采巷道几何形状优化和防护系统设计提供了科学依据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Shock Waves 物理-力学

CiteScore

4.10

自引率

9.10%

发文量

审稿时长

17.4 months

期刊介绍： Shock Waves provides a forum for presenting and discussing new results in all fields where shock and detonation phenomena play a role. The journal addresses physicists, engineers and applied mathematicians working on theoretical, experimental or numerical issues, including diagnostics and flow visualization. The research fields considered include, but are not limited to, aero- and gas dynamics, acoustics, physical chemistry, condensed matter and plasmas, with applications encompassing materials sciences, space sciences, geosciences, life sciences and medicine. Of particular interest are contributions which provide insights into fundamental aspects of the techniques that are relevant to more than one specific research community. The journal publishes scholarly research papers, invited review articles and short notes, as well as comments on papers already published in this journal. Occasionally concise meeting reports of interest to the Shock Waves community are published.