A New Method of Estimating Wave Energy from Ground Vibrations

DOI: 10.4236/gm.2015.52005   PDF   HTML   XML   4,308 Downloads   5,215 Views   Citations


Performance of explosive energy is rated in a number of ways, obtained either from theoretical calculations or from experimental tests. However, it is difficult to determine the amount of the explosive energy transferred to the rock and converted into efficient work in the application of rock blasting. Although measurement of some of the effects of explosive energy in rock mass is ground vibration, noise, etc., which are usually conducted for blast control/analysis purpose, the results are rarely used on energy content. Energy transferred to the rock in the form of seismic waves is called seismic energy. In conventional analysis of blast results, generally, the ground vibrations generated due to blasting operations are monitored at a known distance from blast site with a geophone/ground vibration monitor, in three mutually orthogonal directions. Using such wave forms, an energy component is estimated from all the wave forms in three directions, using a sophisticated signal processing software, which is termed as “wave energy”. The wave energy is compared with the estimated seismic energy. An investigating program was taken up involving 31 blasts conducted at a hard rock excavation site to assess the influence of depth of excavation and scaled distance on the seismic energy wasted in the form of ground vibrations.

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Chandar, K. and Sastry, V. (2015) A New Method of Estimating Wave Energy from Ground Vibrations. Geomaterials, 5, 45-55. doi: 10.4236/gm.2015.52005.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Sastry, V.R., Teggi, V. and Ram Chandar, K. (2003) Shocktube Initiation for Eco-Friendly Blasting: A Few Case-Studies. Institute of Engineers (India), Kolkata, 40-46.
[2] Sastry, V.R. and Ram Chandar, K. (2004) Shocktube Initiation for Better Fragmentation: A Case Study. The International Journal for Blasting and Fragmentation, 8, 207-220.
[3] Sastry, V.R. and Ram Chandar, K. (2005) Influence of Initiation System on Noise Levels Produced by Blasting Operations in Limestone Mines. Institution of Engineers (India), Kolkata, 20-26.
[4] Sastry, V.R. and Ram Chandar, K. (2008) Fragmentation and Throw Due to Blasting—Role of Initiation Systems. International Conference of ISEE, January 2008.
[5] Sastry, V.R. and Ram Chandar, K. (2008) Assessment of Blast Performance Based on Energy Distribution: Proceedings of 42nd American Rock Mechanics Association Conference, San Francisco, 29 June-2 July 2008.
[6] Berta, G. (1990) Explosives: An Engineering Tool. Italesplosivi, Milano.
[7] Spathis, A.T. (1999) On the Energy Efficiency of Blasting. The 4th International Symposium on Rock Fragmentation by Blasting, Johannesburg, 5-8 July 1999, 81-90.
[8] Ouchterlony, F., Nyberg, U. and Olsson, M. (2003) The Energy Balance of Production Blasts at Norkalk’s Klinthagen Quarry. Proceedings of the Second World Conference on Explosives and Blasting, Prague, 10-12 September 2003, 193-203.
[9] Achenbach, J.D. (1975) Wave Propagation in Elastic Solids. Elsevier, Amsterdam, 166.
[10] Howell, B.F. and Budenstein, D. (1955) Energy Distribution in Explosion Generated Seismic Pulses. Geophysics, 20, 33-52. http://dx.doi.org/10.1190/1.1438122
[11] Fogelson, D.E., Atchinson, T.C. and Duvall, W.I. (1959) Propagation of Peak Strain and Strain Energy for Explosion-Generated Strain Pulses in Rock. Proceedings of the 3rd US Symposium on Rock Mechanics, Golden, 20-22 April 1959, 271-284.
[12] Berg Jr., J.W. and Cook, K.L. (1961) Energies, Magnitudes and Amplitudes of Seismic Waves from Quarry Blasts at Promontory and Lakeside, Utah. Bulletin of the Seismological Society of America, 51, 389-399.
[13] Nicholls, H.R. (1962) Coupling Explosive Energy to Rock. Geophysics, 27, 305-316.
[14] Atchinson, T.C. (1968) Fragmentation Principles. In: Pfleider, E.P., Ed., Surf Mining, The American Institute of Mining, Metallurgical and Petroleum Engineers, New York, 355-372.
[15] Hinzen, K.-G. (1998) Comparison of Seismic and Explosive Energy in Five Smooth Blasting Test Rounds. International Journal of Rock Mechanics and Mining Sciences, 35, 957-967.
[16] Sanchidrian, J.A., Segarra, P. and Lopez, L.M. (2006) Energy Components in Rock Blasting. International Journal of Rock Mechanics and Mining Sciences, 44, 130-147.

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