Application of digital image analysis for monitoring the behavior of factors that control the rock fragmentation in opencast bench blasting: a case study conducted over four opencast coal mines of the Talcher Coalfields, India

• Autorzy: Singh Binay Kumar , Mondal Debjeet , Shahid Mohd , Saxena Amit , Roy Paresh Nath Singha

Identyfikatory

DOI

10.46873/2300-3960.1110

• Języki publikacji: EN

Abstrakty

EN

Drilling and blasting play a very important role in driving the economy of opencast mines, as various mining activities related to strata handling are dependent on the size of the rock mass created due to blasting. Thus the analysis of fragments created from rock explosion is essential in order to monitor its compatibility with the deployed mining machineries/HEMMs (such as shovel, dumper, dragline, etc.). As over fragmentation as well as under fragmentation both tend to increase the cost of mining, the generation of fragment size in the desired range is necessary. Several factors control the rock fragmentation in blasting, such as the burden, bench height/drilling depth, stemming column, powder factor and hole diameter. The assessment of rock fragmentation with respect to the aforementioned parameters helps to enhance the blast performance and, hence, this study intends to carry out digital image analysis for monitoring the mean fragment size and boulder percentage. A highly consistent result has been obtained using forty blasting datasets carried out in the four different opencast mines of the Talcher Coalfield (India), namely Balram OCP, Ananta OCP, Lakhanpur OCP, and Lajkura OCP.

Słowa kluczowe

EN

digital image analysis; rock fragmentation; bench blasting; mean fragment size; boulder percentage

PL

cyfrowa analiza obrazu; fragmentacja skał; prace strzałowe; średnia wielkość fragmentu

• Wydawca: Elsevier ; Główny Instytut Górnictwa
• Czasopismo: Journal of Sustainable Mining
• Rocznik: 2019
• Tom: Vol. 18, iss. 4
• Strony: 247--256
• Opis fizyczny: Bibliogr. 21 poz.

Twórcy

autor

Singh Binay Kumar

• Blasting and S&T Department, CMPDI (Coal India Limited), India

autor

Mondal Debjeet

• Innovation Cell (ICT), CMPDI (Coal India Limited), India

autor

Shahid Mohd

• SECL (Coal India Limited), India
• [e-mail]

autor

Saxena Amit

• SECL (Coal India Limited), India

autor

Roy Paresh Nath Singha

• Geology and Geophysics Department, Indian Institute of Technology (Kharagpur), India
• The Abdus Salam International Centre for Theoretical Physics, Trieste, Italy

Bibliografia

• 1. Aler, J., Mouza, J. D., & Arnould, M. (1996). Evaluation of blast fragmentation efficiency and its prediction by multivariate analysis procedures. International Journal of Rock Mechanics and Mining Sciences, 33, 189-196. https://doi.org/10.1016/0148-9062(95)00055-0.
• 2. Ash, R. L. (1963). The mechanics of rock breakage. Journal of Pit and Quarry, 56, 98-100.
• 3. Ash, R. L. (1985). Flexural rupture as a rock breakage mechanism in blasting. In W. Forney, R. Boade, & L. Costin (Eds.). Fragmentation by blasting (pp. 24-29). Bethel, USA: Society for Experimental Mechanics.
• 4. Blanford, W. T., Blanford, H. F., & Theobald, T. (1856). On the geological structure and relations of Talcher coalfield in the district of Cuttuck. Memoirs of the Geological Survey of India, 1(1), 1-98.
• 5. Chakraborty, A. K., Raina, A. K., Ramulu, M., Choudhury, P. B., Haldar, A., Sahu, P. C., et al. (2004). Parametric study to develop guidelines for blast fragmentation improvement in jointed and massive formations. Engineering Geology, 73, 105-116. https://doi.org/10.1016/j.enggeo.2003.12.003.
• 6. Cunningham, C. V. B. (1996). Optical fragmentation assessment - a technical challenge. Proceedings of the FRAGBLAST 5 Workshop Measurement of Blast Fragmentation, Montreal (Quebec, Canada) (pp. 13-19). .
• 7. DGMS (2014). Directorate general of mine safety. Statistics of Mines in India, 1http://www.dgms.gov.in/writereaddata/UploadFile/VOLUMEI(COAL)% 202014636129985100886136.pdf.
• 8. Ghose, A. K. (2001). Are Renewable Energies realistic alternatives to fossil fuel and nuclear power generation for Asia. Proceedings of World Congress of Safety of Modern Technical Systems. Congress Documentation (pp. 234-245). Saarbrucken: TUV Saarland Foundation.
• 9. Grundstrom, C., Kanchibotla, S. S., Jankovich, A., & Thornton, D. (2001). Blast fragmentation for maximising the sag mill throughput at Porgera Gold Mine. Proceedings of the 27th Annual Conference on Explosives and Blasting Technique, Orlando (Florida): Vol. 1, (pp. 383-399).
• 10. Hudaverdi, T., Kuzu, C., & Fisne, A. (2012). Investigation of the blast fragmentation using the mean fragment size and fragmentation index. International Journal of Rock Mechanics and Mining Sciences, 56, 136-145. https://doi.org/10.1016/j.ijrmms.2012.07.028.
• 11. Jimeno, C. L., Jimeno, E. L., & Francisco, J. A. C. (1995). Drilling and blasting of rock. In A. A. Balkema, R. D. Ramiro, & Y. Visser (Vol. Eds.), Drilling and blasting of rock: Vol. 30, (pp. 56-61). (translated to English).
• 12. Kulatilake, P. H. S. W., Qiong, W., Hudaverdi, T., & Kuzu, C. (2010). Mean particle size prediction in rock blast fragmentation using neural networks. Engineering Geology, 114(3-4), 298-311. https://doi.org/10.1016/j.enggeo.2010.05.008.
• 13. Lyana, K. N., Hareyani, Z., Shah, A. K., & Hazizan, M. H. M. (2016). Effect of geological condition on degree of fragmentation in a Simpang Marble Quarry. Procedia Chemistry, 19, 694-701. https://doi.org/10.1016/j.proche.2016.03.072.
• 14. Mackenzie, A. S. (1967). Optimum blasting. Proceedings of the 28th Annual Minnesota Mining Science, 9(2), 181-188.
• 15. Maerz, N. H., Palangio, T. C., & Franklin, J. A. (1996). WipFrag image based granulometry system. Proceedings of the FragBlast 5 Workshop on Blast Fragmentation, Montreal (pp. 91-99). .
• 16. Mondal, D., Roy, P. N. S., & Behera, P. K. (2017). Use of correlation fractal dimension signatures for understanding the overlying strata dynamics in longwall coal mines. International Journal of Rock Mechanics and Mining Sciences, 91, 210-221. https://doi.org/10.1016/j.ijrmms.2016.11.019.
• 17. Morin, M. A., & Ficarazzo, F. (2006). Monte Carlo simulation as a tool to predict blasting fragmentation based on the KuzeRam model. Computers & Geosciences, 32(3), 352-359. https://doi.org/10.1016/j.cageo.2005.06.022.
• 18. Pareek, H. S. (1963). Petrology of talcher coals. Economic Geology, 58, 1089-1109. https://doi.org/10.2113/gsecongeo.58.7.1089.
• 19. Saxena, A., Singh, K. J., & Goswami, S. (2014). Advent and decline of the genus glossopteris brongniart in the talcher coalfield, Mahanadi basin, odisha, India. Palaeobotany, 63(2), 157-168. http://hdl.handle.net/123456789/2098.
• 20. Singh, A. K. (2016). Petrographic and geochemical characterization of coal from talcher coalfield, Mahanadi basin, India. Journal of the Geological Society of India, 87, 525-534. https://doi.org/10.1007/s12594-016-0426-5.
• 21. Singh, P. K., Roy, M. P., Paswan, R. K., Sarim, M., Kumar, S., & Jha, R. R. (2016). Rock fragmentation control in opencast blasting. Journal of Rock Mechanics and Geotechnical Engineering, 8(2), 225-237. https://doi.org/10.1016/j.jrmge.2015.10.005.