Main Article Content
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.
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- Cooper P.W., Explosives engineering, Wiley-VCH, New York, 1996.
- 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.
- 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.
- 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.
- Whittaker B.N., Singh R.N., Sun G., Rock fracture mechanics principles: design and applications, Amsterdam, Elsevier, pp 444–445, 1992.
- 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.
- 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.
- Ouchterlony F., The SWEBREC© function: linking fragmentation by blasting and crushing, Mining Technology, vol. 114 (1), pp 29–44, 2005, DOI: 10.1179/037178405X44539.
- Nefis M., Talhi K., A model study to measure fragmentation by blasting, Mining Science, vol. 23, pp 91–104, 2016, DOI: 10.5277/ msc162308.