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ArticleName Parameter calculation and backfill composition optimization for artificial rib and crown pillars
DOI 10.17580/gzh.2024.01.06
ArticleAuthor Kolpakov V. B., Krasnoperov A. V., Antonyuk S. A.

Polymetal Engineering JSC, Saint-Petersburg, Russia

V. B. Kolpakov, Head of Department, Candidate of Geological and Mineralogical Sciences

Polymetal UK JSC, Saint-Petersburg, Russia

A. V. Krasnoperov, Leading Geomechanical Engineer,

South Verkhoyansk Mining Company, Yakutsk, Russia

S. A. Antonyuk, Chief Geomechanic, Candidate of Engineering Sciences


The pursuit of complete extraction of valuable components from raw ore dictates application of underground mining systems with cemented paste backfill. In its turn, mining with backfill requires optimizing backfill compositions at preservation of mining safety. Preparation of backfill is a rather simple process including certain operations, namely:
—delivery of cement from the surface infrastructure site to special sumps arranged in lateral haulage drifts in a mine;
—cement is mixed with water in the sumps using load–haul–dumpers (LHD) employed in backfilling;
—after cement is mixed with water (this product is named cement milk in mines), LHD bring broken rocks delivered from heading drifts by dump trucks and stored not far from the sumps;
—rocks unloaded to a sump is mixed with the cement milk using LHD;
—the prepared backfill is thrown to a mined-out stope from the upper sublevel by LHD. 

Sublevel open stoping with cemented paste backfill at Polymetal JSC has proved to be an effective method of underground mineral mining, which ensures complete extraction of minerals and stability of enclosing rock mass. The foreign and domestic approaches to the standard strength analysis of cemented paste backfill are reviewed. Some variants of the integrated analysis of standard strength of cemented paste backfill per different specifications are proposed, and the methodology is presented for calculating sizes of artificial rib and crown pillars and optimizing backfill compositions for them. The problem is considered in terms of operating mines in the Khabarovsk Krai and Magadan Region.

keywords Underground mining, mining system with backfill, standard strength of cemented paste backfill, backfill composition, standard strength development time, ground control, stone concrete mixture

1. Seymour J. B., Raffaldi M. J., Abraham H. Monitoring the in situ performance of cemented paste backfill at the Lucky Friday Mine. Minefill 2017: Proceedings of the 12th International Symposium on Mining with Backfill. Denver, 2018.
2. Raffaldi M. J., Seymour J. B., Abraham H. Cemented paste backfill geomechanics at the Lucky Friday Mine. Proceedings of the 52nd US Rock Mechanics/Geomechanics Symposium. Seattle, 2018.
3. Abdugalieva G. Yu., Kapanov A. Zh. Standard strength analysis of exposed backfill. Modern Trends and Innovations in Science and Industry : IX International Conference. Mezhdurechensk, 2020.
4. Garifulina I. Yu., Gasymov V. F., Gabaraev G. O., Kubalov R. O. Development of thin deposit sites by sublevel and room caving system followed by goaf stowing. Transportnoe, gornoe i stroitelnoe mashinostroenie: nauka i proizvodstvo. 2020. No. 7. pp. 45–48.
5. Gabarev G. O., Razorenova E. Yu., Stas V. P., Stas P. P. Mechanism of work of hardening mixtures. Vektor geonauk. 2020. Vol. 3, No. 4. pp. 8–20.
6. Govorov Z. N., Petrova L. V. On the technology of stowing operations at the international mine. Vestnik Severo-Vostochnogo federalnogo universiteta imeni M. K. Ammosova. 2020. No. 3(19). pp. 5–10.
7. Warren S. N., Raffaldi M. J., Dehn K. K., Seymour J. B., Sandbak L. A. et al. Estimating the strength and mechanical properties of cemented rockfill for underhand cut-and-fill mines. Proceedings of the 52nd US Rock Mechanics/Geomechanics Symposium. Seattle, 2018.
8. Grabinsky M., Jafari M., Pan A. Cemented paste backfill (CPB) material properties for undercut analysis. Mining. 2022. Vol. 2, Iss. 1. pp. 103–122.
9. Guidelines on ground control in open stoping with cemented paste backfill in mines of Norilsk Mining and Metallurgical Integrated Works. Leningrad : VNIMI, 1987. 126 p.
10. Tsygalov M. N., Zurkov P. E. Mineral mining with solid-cast backfill. Moscow : Nedra, 1970. 176 p.
11. Bronnikov D. M., Tsygalova M. N. (Eds.). Stowing operations in mines : Reference book. Moscow : Nedra, 1989. 400 p.
12. Guidelines on room and pillar sizinf in room-and-pillar mining of nonferrous metal ore. Leningrad, 1972. 82 p.
13. Kazikaev D. M., Savich G. V. Practical course on geomechanics of underground and hybrid hard rock mining : Teaching aid. Moscow : Gornaya kniga, 2012. 224 p.
14. Shaposhnik Yu. N., Neverov S. A., Neverov A. A. Rubble concrete filling in underground mines of Russian Far North. Fundamentalnye i prikladnye voprosy gornykh nauk. 2021. Vol. 8, No. 1. pp. 282–290.

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