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V. A. Mikhailov
V. A. Mikhailov
St. Petersburg State Mining Institute
St. Petersburg State Mining Institute

Articles

Without section
  • Date submitted
    2000-07-08
  • Date accepted
    2000-08-06
  • Date published
    2001-02-01

Assessment of the level of acoustic effect from an open pit explosion

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The intensity of the airborne shock wave (AHW) impact on the structures located in the area of blasting operations, when designing blasting operations, is estimated by the value of excess pressure at the front of the wave. As an admissible level of exposure is usually taken the overpressure at the front of the shockwave 700-800 Pa, at which the destruction of glazing of buildings does not occur. However, the dynamic waves formed during the explosion with a pressure drop of about 1 kPa with low (16-60 Hz) and infra-low frequencies can cause dizziness and headaches in the population.

How to cite: Egorov M.G., Artemov V.A., Mikhailov V.A. Assessment of the level of acoustic effect from an open pit explosion // Journal of Mining Institute. 2001. Vol. № 2 148. p. 38-40.
Without section
  • Date submitted
    1983-07-07
  • Date accepted
    1983-09-07
  • Date published
    1984-01-01

Определение оптимальной степени дробления гранитного массива взрывом на щебеночных карьерах

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Особенность решения задачи оптимальности дробления горных пород взры­ вом на щебеночных карьерах заключается в том, что одновременно с анализом работы карьерного оборудования, производительность которого зависит от выхода крупных фракций дробленого материала > 200 мм, необходимо рассмат­ривать вопрос о снижений мелких фракций некондиционного материала круп­ностью < 3 мм ...

How to cite: Makarev V.P., Mikhailov V.A. // Journal of Mining Institute. 1984. Vol. 99. p. 80.