ENVIRONMENTAL IMPACT OF MINE BLASTING

Authors

  • Tonu Tomberg Tallinn Technical University
  • Arvi Toomik Tallinn Pedagogical University

DOI:

https://doi.org/10.17770/etr1999vol1.1872

Abstract

The blasting is the predominating method o f breaking rocks in various surface and underground mines. At the same time some damaging impacts on environment are evident: noise, gas, dust, flyrock and ground vibration. The last factor is most important for safety o f constructions, buildings and various natural objects in the vicinity o f mining area. The ground vibration parameters, crucial for safety o f endangered objects have a significant correlation with charge weight and distance o f blasting. The properties o f vibration medium impact on the value o f these parameters. This study tried to associate the main vibration parameter, particle velocity with blasting parameters and properties o f vibration medium. The blast vibrations were studied in the soil o f Quaternary sediments and in Ordovician limestone in Estonian oil shale mining area in opencast and underground mines. The analysis o f measured data pointed significant correlation between vibration velocity and scaled distance from charges. The formulas and nomographs for prediction o f vibration velocity and fo r maximum permitted charge weights were elaborated fo r basic rocks and fo r soil, fo r oil shale underground and opencast mines. Using these formulas and nomographs in blast design will make possible to diminish the impact o f mine blasting on the objects located in the vicinity of mining area.

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Author Biographies

  • Tonu Tomberg, Tallinn Technical University
    Department of Mining
  • Arvi Toomik, Tallinn Pedagogical University
    Institute of Ecology, North-East Estonian Department

References

Langefors U. and Kihlstrom B. (1963.) "The Modern Technique of Rock Blasting", Almquist & Wiksell, Stockholm, John Wiley & Sons, Inc. New York.

Rosenthal M. and Morlock G. (1987.) "Blasting guidance manual", US Department of the Interior.

Dowding, C. (1985.) "Blast vibration monitoring and control", Prentice-Hall, Inc. Englewood Cliffs.

Toomik A. and Tomberg T. (1997.) "Blast vibrations in oil shale surface mining", Oil Shale, V. 14, No. 2., pp. 155-162.

Toomik A. and Tomberg T., 1998. "Blast vibrations in oil shale underground mining", Oil Shale, V.15, No.l. pp. 65-74

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Published

1999-06-20

How to Cite

[1]
T. Tomberg and A. Toomik, “ENVIRONMENTAL IMPACT OF MINE BLASTING”, ETR, vol. 1, pp. 213–219, Jun. 1999, doi: 10.17770/etr1999vol1.1872.