Seismoacoustic diagnostics and environmental impact assessment of mass blasting at the Rokytne Special Quarry

Authors

  • A. Han National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine , Institute of Hydromechanics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
  • V. Boiko Institute of Hydromechanics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
  • V. Korobiichuk Institute of Hydromechanics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine , Zhytomyr Polytechnic State University, Zhytomyr, Ukraine
  • T. Khlevniuk Institute of Hydromechanics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
  • O. Han National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine , Institute of Hydromechanics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
  • D. Bilobrov Zhytomyr Polytechnic State University, Zhytomyr, Ukraine

DOI:

https://doi.org/10.33271/crpnmu/86.007

Keywords:

mass blasting, short-delay blasting, seismoacoustic action, seismic waves, air shock wave, TNT equivalent, scaled distance, environmental safety, technical condition of buildings and structures, seismoacoustic stability of buildings and structures, anthropogenic impact, residential development

Abstract

Purpose. A comprehensive analysis of protocols No. 1-4 recorded by four Instantel MiniMate Plus seismographs to establish the propagation patterns of seismic and air shock waves during short-delay blasting of 69 borehole charges of “Anemix-70” explosive with a total mass of 9420.0 kg at the Rokytne Special Quarry, and to justify the TNT equivalent of the charge as the design parameter for seismoacoustically safe distances.

The methods. Measurement points were located along a profile from the blasted block: protocol No. 1 - open field, 100 m (control point); protocols No. 2-4 - near houses No. 22-A, No. 22 and No. 28 at distances of 200, 300 and 425 m. Peak particle velocities (PPV) for three components, the vector sum of vibrations, dominant frequencies (FFT) and sound pressure levels were determined; scatter clouds relative to DIN 4150-3 lines and a regression analysis of vibration attenuation were performed.

 Findings. The vector sum of vibration velocity decreases with distance: 15.7 mm/s (200 m) to 8.89 mm/s (300 m) to 4.93 mm/s (425 m). PSPL also decreases regularly: 124.9 to 123.1 to 121.0 dB(L). For house No. 22-A (200 m) some frequency components approach line L2 of DIN 4150-3; for houses No. 22 and No. 28 the margin is larger. The TNT equivalent of the maximum group charge is about 216.6 kg instead of the nominal 270.8 kg (20% difference), changing the calculated PPV by 6-10%.

 The originality. A regularity in the change of seismic vibrations and air shock wave parameters depending on distance to the blast site was established. It was substantiated that for short-delay blasting the design parameter for safe distances should be the TNT equivalent of the maximum group charge rather than its mass. For the first time, a comprehensive approach to assessing seismoacoustic safety is proposed, accounting for both amplitude and frequency characteristics of vibrations.

Practical implementation. The results allow substantiated determination of seismoacoustically safe distances for blasting near residential buildings, accounting for the actual energy characteristics of the explosive used, prioritizing instrumental monitoring of the nearest buildings, and improving the reliability of environmental safety assessment of mining operations. The need to refine the TNT equivalence coefficient e based on the quality certificate of a specific explosive batch is substantiated.

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Published

2026-09-30

Issue

No. 86 (2026)

Section

MINING AND OIL AND GAS TECHNOLOGIES

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