Main Article Content

Abstract

The efficiency of drilling and blasting operations can be assessed in different ways, depending on the desired effect. The evaluation can be performed on the basis of the quality of the explosives applied for rock extraction. On the other hand, the correct assessment should include the results of drilling and blasting works. One of the parameters that are commonly used in the quality assessment of explosives is the on-site testing of the detonation velocity, which is a direct indicator of the efficiency of explosives. The quality of explosives is essential for the appropriate blasting process and should be subjected to regular verification by means of measurements under different site conditions. Since in most cases the excavated rock must be transported from the blasting site to another location, one of the main parameters that can be used for drilling and blasting operations assessment is fragmentation analysis. It may be done using various image-based particles sizing software. The article presents selected methods that can be applied for the evaluation of blasting works efficiency, including measurements of detonation velocity as well as fragmentation analysis based on photogrammetric methods.

Keywords

blasting efficiency velocity of detonation VOD fragmentation analysis

Article Details

Author Biographies

Piotr Mertuszka, PhD., Min.Eng. , KGHM CUPRUM Ltd. Research & Development Centre

Dr Piotr Mertuszka is an Assistant Manager of Rock Engineering Department of KGHM CUPRUM Research & Development Centre located in Wroclaw, Poland. He also works as a lecturer in the Mining Institute at the Wroclaw University of Science and Technology. He is an co-author of several research report, documentation, prefeasibility studies etc. His background is rock mechanics and numerical modelling as well as blasting technology and testing of explosives.

Marcin Szumny, PhD., Min.Eng. , KGHM CUPRUM Ltd. Research and Development Centre

Doctor Marcin Szumny, is an assistant in Rock Engineering Department of KGHM Cuprum Research & Development Centre located in Wroclaw, Poland. His main field of interest is blasting and applications of explosives in the mining industry. He has twenty years of experience in the area of blasting technology in underground and open pits mines both in design and performing of blasting works. He is a co-author of several research report, documentation, prefeasibility studies etc.

Krzysztof Fuławka, M.Sc., Min.Eng. , KGHM CUPRUM Ltd. Research and Development Centre

MSc., Min. Eng. Krzysztof Fuławka is a Research Assistant in Rock Engineering Department of KGHM CUPRUM R&D Centre and PhD-Student at Faculty of Geoengineering, Mining and Geology of Wroclaw University of Science and Technology. He focuses on slope stability assessment in dynamic load condition and risk management. He is a co-author of numerous research papers, reports and prefeasibility studies. His background is rock mechanics and mining and blasting technology.

Stanislav Nikolov, M.Sc., Expl.Chem.Eng. , PBEx Consulting Ltd.,

Stanislav Nikolov, is graduated from Sankt Petersburg Institute of Chemical Technology. He was engaged with several R&D projects related to Material Science, Nano-pyrotechnics and Accelerated Aging of Pyrotechnics and detonators. He has above twenty years of experience in the area of blasting technology. He spend a few years with project for “Optimization of bench blasting by means of advanced blasting technology - blasting software, electronic detonators, vibrations prediction and control". Currently, he is an independent consultant in the field of blasting technology.

How to Cite
Mertuszka, P., Szumny, M., Fuławka, K., & Nikolov, S. (2020). FIELD EVALUATION OF MINE BLASTING EFFICIENCY. SWS Journal of EARTH and PLANETARY SCIENCES, 2(2), 1-16. https://doi.org/10.35603/eps2020/issue2.01

References

  1. Zare S., Bruland A., Progress of drill and blast tunnelling efficiency with relation to excavation time and costs, Underground Space – the 4th Dimension of Metropolises – Barták, Hrdina, Romancov & Zlámal (eds), Taylor & Francis Group, London, pp 805–809, 2007, DOI: 10.1201/NOE0415408073.ch133.
  2. Singh P.K., Roy M.P., Paswan R.K., Sarim Md., Kumar S., Jha R.R., Rock fragmentation control in opencast blasting, Journal of Rock Mechanics and Geotechnical Engineering, vol. 8, pp 225–237, 2016, DOI: 10.1016/j.jrmge.2015.10.005.
  3. Müller B., Hausmann J., Niedzwiedz H., Control of rock fragmentation and muck pile geometry during production blasts (environmentally friendly blasting technique), Rock Fragmentation by Blasting – Sanchidrián (ed), Taylor & Francis Group, London, pp 277–286, 2010, DOI: 10.1.1.472.193.
  4. Verma H.K., Samadhiya N.K., Singh M., Goel R.K., Singh P.K., Blast induced rock mass damage around tunnels, Tunnelling and Underground Space Technology, vol. 71, pp 149–158, 2018, DOI: 10.1016/j.tust.2017.08.019.
  5. Venkatesh H.S., Venugopala Rao R., Reduction of blast induced ground vibrations with open trenches in surface mines, Proceedings of the 12th International Conference of International Association for Computer Methods and Advances in Geomechanics (IACMAG), pp 4132–4139, 2008.
  6. Kabwe E., Velocity of detonation measurement and fragmentation analysis to evaluate blasting efficacy, Journal of Rock Mechanics and Geotechnical Engineering, vol. 10, pp 523–533, 2018, DOI: 10.1016/j.jrmge.2017.12.003.
  7. Mesec J., Žganec S., Kovač I., In-hole velocity of detonation (VOD) measurements as a framework for the selection type of explosive, International Journal of Mining Science and Technology, vol. 25, issue 4, pp 675-680, 2015, DOI: 10.1016/j.ijmst.2015.05.024.
  8. Mertuszka P., Szumny M., Fuławka K., Nikolov S., Selected methods of blasting works efficiency assessment, Proceedings of the 19th International Multidisciplinary Scientific Geoconference SGEM, Science and Technologies in Geology, Exploration and Mining, vol. 19, issue 1.3, pp 579–586, 2019, DOI: 10.5593/sgem2019/1.3/S03.074.
  9. Arvanitidis I., Nyberg U., Ouchterlony F., The diameter effect on detonation properties of cylinder test experiments with emulsion E682, SveBeFo Report 66, Swedish Rock Engineering Research, Stockholm, 2004.
  10. Agrawal H., Mishra A.K., A study on influence of density and viscosity of emulsion explosive on its detonation velocity, Modelling C, vol. 78 (3), pp 316–336, 2018, DOI: 10.18280/mmc_c.780305.
  11. Žganec S., Bohanek V., Dobrilović M., Influence of a primer on the velocity of detonation of ANFO and heavy ANFO blends, Central European Journal of Energetic Materials, vol. 13 (3), pp 694–704, 2016, DOI: 10.22211/cejem/65006.
  12. Chiappetta R.F., Blast monitoring instruments and analysis techniques with an emphasis on field application, Fragblast – International Journal of Blasting and Fragmentation, vol. 2 (1), pp 79–122, 1998, DOI: 10.1080/13855149809408880.
  13. Cooper P.W., Explosives engineering, Wiley-VCH, New York, 1996.
  14. Rustan P.A., A new principal formula for the determination of explosive strength in combination with the rock mass strength, Proceeding of the 9th International Symposium of Rock fragmentation by blasting – Sanchidrian (ed), Taylor & Francis Group, London, pp 155–164, 2010.
  15. Tete A.D., Deshmukh A.Y., Yerpude R.R., Velocity of detonation (VOD) measurement techniques practical approach, International Journal of Engineering and Technology, vol. 2 (3), pp 259–265, 2013, DOI: 10.14419/ijet.v2i3.1023.
  16. Esen S., Onederra I., Bilgin H.A., Modelling the size of the crushed zone around a blasthole, International Journal of Rock Mechanics & Mining Sciences, vol. 40, pp 485–495, 2003, DOI: 10.1016/S1365-1609(03)00018-2.
  17. Whittaker B.N., Singh R.N., Sun G., Rock fracture mechanics principles: design and applications, Amsterdam, Elsevier, pp 444–445, 1992.
  18. Kanchibotla S.S., Valery W., Morrell S., Modelling fines in blast fragmentation and its impact on crushing and grinding, Proceedings of the Explo’99—A Conference on Rock Breaking, The Australasian Institute of Mining and Metallurgy, Kalgoorlie, pp 137–144, 1999.
  19. Mertuszka P., Szumny M., Fuławka K., Maślej J., Saiang D., The effect of the blasthole diameter on the detonation velocity of bulk emulsion explosive in the conditions of selected mining panel of the Rudna mine, Archives of Mining Sciences, vol. 64, no. 4, pp 725–737, 2019, DOI: 10.24425/ams.2019.131062.
  20. Ouchterlony F., The SWEBREC© function: linking fragmentation by blasting and crushing, Mining Technology, vol. 114 (1), pp 29–44, 2005, DOI: 10.1179/037178405X44539.
  21. Nefis M., Talhi K., A model study to measure fragmentation by blasting, Mining Science, vol. 23, pp 91–104, 2016, DOI: 10.5277/ msc162308.

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