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Title: STUDY THE INFLUENCE OF THE CHOICE OF BLASTING ZONES ON THE ROCK FRAGMENTATION QUALITY AND THE STABILITY OF BENCHES IN OPEN-PIT MINING BY NUMERICAL MODELING
STUDY THE INFLUENCE OF THE CHOICE OF BLASTING ZONES ON THE ROCK FRAGMENTATION QUALITY AND THE STABILITY OF BENCHES IN OPEN-PIT MINING BY NUMERICAL MODELING

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Abderrazak Saadoun; Riadh Boukarm; Mohamed Fredj; Yilmaz Isik
10.5593/sgem2023/1.1/s03.53
10.5593/sgem2023/1.1
1314-2704
978-619-7603-56-9
English
23
1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Exploration and Mining
In this research, the study site is a limestone quarry Ain El-Kebira located in the wilaya of Setif (Northwest -Algeria) producing limestone for cement manufacturing. The present work represents a study to measure the granulometric distribution of the blasted rock using the digital image processing software WipFrag and empirical model KuzRam, in order to evaluate the efficiency of the blasting operation and ensure the stability of the benches.
In this work, we will simulate the method of exploitation while analyzing the effect of exploitation (digging trenches cutting by explosive) on the stability of the northern flank of Ain El-Kebira quarry. The calculation was carried out by phases (excavation sequence taking into account the phase before the exploitation) in different areas of the steps (5 blasts) in order to target the dangerous working platforms.
It can be seen as a conclusion that the measurement of rock size by both empirical and numerical methods (KuzRam and WipFrag) gave almost similar results with accuracy of WipFrag. The change of some parameters of the blasting plan having an important influence on the blasting area, the use of large quantity of explosive negatively influenced the dimension of the fragmented rocks and the stability of the quarry edge, the use of stability software targeted the dangerous zones of the blasting (in our case software phase2 gave ideal results), these results helped the engineer for better design of the blasting plan.
[1] Jug, J., et al., Fragment size distribution of blasted rock mass. IOP Conference Series: Earth and Environmental Science, 95 (4), 1–9, 2017.
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[5] A Saadoun, A. Hafsaoui , Y. Khadri, M. Fredj, R .Boukarm & R.Nakache “Study effect of geological parameters of the slope stability by numerical modelling, Case limestone Career of Lafarge Msila, Algeria” IOP Conf. Series: Earth and Environmental Science. 2019. doi:10.1088/1755-1315/221/1/012021
[6] M Djoudi., S Bensehamdi., M Fredj. Study of blasting effect on bench stability. IOP Conf. Ser.: Earth Environ. Sci. 833 012196. 2021. doi:10.1088/1755-1315/833/1/012196
[7] M Fredj, A Hafsaoui, R Boukarm, R Nakache, A Saadoun. Numerical Modelling of Slope Stability in Open Pit Phosphate Mines, Algeria: A Comparative Study IOP Conference Series: Earth and Environmental Science 221 1 012020. 2019.
[8] Saadoun A., Fredj M., Boukarm R., Hadji R. Fragmentation analysis using digital image processing and empirical model (KuzRam): a comparative study. Journal of Mining Institute. Vol. 257, p. 828-838. 2022. DOI: 10.31897/PMI.2022.84
[9] M Fredj, A Hafsaoui, K Talhi, K Menacer. Study of Powder Factor in Surface Bench Blasting. Procedia Earth and Planetary Science. Science Direct. 2015. DOI: 10.1016/j.proeps.2015.08.142
[10] Abderrazak Saadoun et al. Different Approaches for Study Slope Stability in Quarries, Case Chouf Amar Limestone Quarry M’sila, Algeria IOP Conf. Ser.: Earth Environ. Sci. 609, 012093, 2020. Doi:10.1088/1755-1315/609/1/012093
[11] Bamford, T., et al, A real-time analysis of post-blast rock fragmentation using UAV technology. International Journal of Mining, Reclamation and Environment, 31 (6), 439– 456. 2017. Doi:10.1080/ 17480930.2017.1339170.
[12] Shaib A S, Kudirat O Y & Hashim M.H.M. Comparative study of WipFrag image analysis and Kuz-Ram empirical model in granite aggregate quarry and their application for blast fragmentation rating, Geomechanics and Geoengineering. 2020. DOI: 10.1080/17486025.2020.1720830
The authors thank the director and all the engineers of GICA cement Ain Elkebira – Setif for having extended all types of support in the field during this research.
conference
https://doi.org/10.5593/sgem2023/1.1/s03.53
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Proceedings of 23rd International Multidisciplinary Scientific GeoConference SGEM 2023
23rd International Multidisciplinary Scientific GeoConference SGEM 2023, 03 - 09 July, 2023
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference-SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
439-446
03 - 09 July, 2023
website
9042
Blasting, Stability, KuzRam, WipFrag, Modeling