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Novikov, Evgeny
Publications (7 of 7) Show all publications
Skawina, B., Greberg, J., Salama, A. & Novikov, E. (2016). Evaluation of near to face sorting plant in an underground mine: A case study from Kristineberg mine (ed.). In: (Ed.), 2016 SME Annual Conference and Expo: The Future for Mining in a Data-Driven World, Phoenix, United States, 21 - 24 February 2016. Paper presented at SME Annual Conference & Expo : 21/02/2016 - 24/02/2016 (pp. 379-383). New York: Society for Mining, Metalurgy and Exploration
Open this publication in new window or tab >>Evaluation of near to face sorting plant in an underground mine: A case study from Kristineberg mine
2016 (English)In: 2016 SME Annual Conference and Expo: The Future for Mining in a Data-Driven World, Phoenix, United States, 21 - 24 February 2016, New York: Society for Mining, Metalurgy and Exploration, 2016, p. 379-383Conference paper, Published paper (Refereed)
Abstract [en]

Mining of ore bodies that are located at great depths enforces long distances to move the excavated rock masses to the surface. The excavated rock mass contains not only ore that can be economically extracted from the face but also waste, which is usually discarded several steps further downstream in the process. As a result large amount of rock masses are transported to the surface, influencing the costs at which the ore is produced. Reducing the amount of waste being transported to the surface by introducing near to face sorting plant would improve the in many cases strained transport system in the deep mine. In this study, one of Boliden’s cut and fill mines was analysed with respect to the challenges related to mass movement and increasing mining depth. The study aims to evaluate the use of the new near to face sorting system in the operating underground mine. Discrete event simulation was used to study and analyse the mass movement with and without the near to face sorting plant. The paper shows how the underground mass movement system and the production were influenced when a near to face sorting equipment was added into the current system.

Place, publisher, year, edition, pages
New York: Society for Mining, Metalurgy and Exploration, 2016
Keywords
Deep underground mining, Cut and fill mining, Transportation system, Near to face sorting, Discrete Event Simulation, Civil engineering and architecture - Geoengineering and mining engineering, Samhällsbyggnadsteknik och arkitektur - Geoteknik och gruvteknik
National Category
Other Civil Engineering
Research subject
Mining and Rock Engineering
Identifiers
urn:nbn:se:ltu:diva-28116 (URN)2-s2.0-84988353587 (Scopus ID)1caff48e-9d53-4601-81a1-16e959f205c4 (Local ID)9781510825659 (ISBN)1caff48e-9d53-4601-81a1-16e959f205c4 (Archive number)1caff48e-9d53-4601-81a1-16e959f205c4 (OAI)
Conference
SME Annual Conference & Expo : 21/02/2016 - 24/02/2016
Projects
Innovative Technologies and Concepts for the Intelligent Deep Mine of the Future
Note

Godkänd; 2016; 20151013 (barska)

Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-04-17Bibliographically approved
Skawina, B., Greberg, J., Salama, A. & Novikov, E. (2015). Introducing a sorting plant in the Kristineberg mine: an analysis of the effects on production (ed.). Paper presented at . Luleå: Luleå tekniska universitet
Open this publication in new window or tab >>Introducing a sorting plant in the Kristineberg mine: an analysis of the effects on production
2015 (English)Report (Other academic)
Abstract [en]

This report is part of the work done by Luleå University of Technology within the EU 7th framework project I2Mine, Innovative Technologies and Concepts for the Sustainable and Intelligent Deep Mine of the Future. The work is performed within work package 2 Novel mining and underground processing methods, subtask 2.1.1 Novel mining methods and processes for deep, steeply dipping orebodies. Reaching the ore bodies that are located at greater depths require extensive transportation systems. The transported ore before being refined contains not only minerals that can be economically extracted from the production face but also waste. To reduce the amount of transporting unnecessary material up to the surface near to face sorting plant has been introduced. In this study near to face sorting plant was integrated in the simulation model that was based on one of the Boliden’s cut and fill mines for possible enhancement of the currentand future transportation systems to reduce the unnecessary amount of mass movement upstream. In this study discrete event simulation was used to study and analyse the mass movement before and after near to face sorter implementation. The paper shows the effects on the production rate and distribution of rock mass in the underground mine. When miningoperations will continue to reach greater depths, utilizing sorting technique would be advantageous, as it enables to leave the waste behind, hence reduces the costs necessary for transporting and processing unnecessary material further upstream. Taking into consideration the sorting plant speeds equal to or higher than 70 tph, the sorting plant was able to maintain the speed of the simulated production. If the sorting plant will maintain the speed at 30 tph during the simulation it was not possible to fulfil the yearly production blasting plan. In cases of necessary stockpiling of the material in front of the sorting plant, some of the material would have to bypass the sorting plant and be transported up via hoisting system with the rest of the ore. However, further studies with regards to the feasibility of the pre-concentration and integration issues should be addressed.

Place, publisher, year, edition, pages
Luleå: Luleå tekniska universitet, 2015. p. 4
Series
Technical report / Luleå University of Technology, ISSN 1402-1536
National Category
Other Civil Engineering
Research subject
Mining and Rock Engineering
Identifiers
urn:nbn:se:ltu:diva-25530 (URN)f99aca49-45ef-429b-86d6-659f5af64579 (Local ID)978-91-7583-423-8 (ISBN)f99aca49-45ef-429b-86d6-659f5af64579 (Archive number)f99aca49-45ef-429b-86d6-659f5af64579 (OAI)
Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-08-17Bibliographically approved
Petropoulos, N., Beyglou, A., Johansson, D., Nyberg, U. & Novikov, E. (2014). Fragmentation by blasting through precise initiation: Full scale trials at the Aitik Copper mine (ed.). Paper presented at . Blasting and Fragmentation, 8(2), 87-100
Open this publication in new window or tab >>Fragmentation by blasting through precise initiation: Full scale trials at the Aitik Copper mine
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2014 (English)In: Blasting and Fragmentation, ISSN 1937-6359, Vol. 8, no 2, p. 87-100Article in journal (Refereed) Published
Abstract [en]

Fragmentation is an important factor for improving downstream processes in mine operations. Six trials have been conducted at the Aitik copper mine to investigate the effect of ultra-short inter-hole delay times, i.e. smaller than 1 ms/m of burden, on fragmentation. Swelling, MWD data and crusher efficiency were also evaluated for trials. According to the results, the effect of examined short inter-hole delay times, i.e. 0.14 to 0.86 ms/m of burden, on fragmentation was found to be marginal. Delay time of 0.43 ms/m of burden resulted in slightly finer fragmentation and larger swell; however, the effect of short delays was overshadowed by the effect of small variations in specific charge.

Keywords
Civil engineering and architecture - Geoengineering and mining engineering, Samhällsbyggnadsteknik och arkitektur - Geoteknik och gruvteknik
National Category
Other Civil Engineering
Research subject
Mining and Rock Engineering
Identifiers
urn:nbn:se:ltu:diva-11503 (URN)a7e1e547-49e7-46d1-9ce9-70fe7168f052 (Local ID)a7e1e547-49e7-46d1-9ce9-70fe7168f052 (Archive number)a7e1e547-49e7-46d1-9ce9-70fe7168f052 (OAI)
Note
Validerad; 2015; Nivå 1; 20150127 (nikpet)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-05-28Bibliographically approved
Petropoulos, N., Beyglou, A., Johansson, D., Novikov, E. & Nyberg, U. (2013). Improved blasting performance through precise initiation (ed.). In: (Ed.), (Ed.), EFEE-7th World Conference on Explosives & Blasting: . Paper presented at World conference on Explosives & Blasting : 15/09/2013 - 17/09/2013 (pp. 20-26). Moscow: European Federation of Explosives Engineers, 1
Open this publication in new window or tab >>Improved blasting performance through precise initiation
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2013 (English)In: EFEE-7th World Conference on Explosives & Blasting, Moscow: European Federation of Explosives Engineers , 2013, Vol. 1, p. 20-26Conference paper, Published paper (Refereed)
Abstract [en]

Blast-induced fragmentation is an important factor in optimization of downstream processes in a mine. Several researchers believe that the fragmentation can be improved by means of precise short inter-hole delay times. Six full-scale trials with different inter-hole delay times of 1, 3, 6 and 42 ms (0.14, 0.42, 0.84 and 6 ms/m of burden, respectively) were conducted in Boliden Aitik open pit copper mine in Sweden. Electronic detonators were used for short inter-hole delay times, which correspond to different wave interactions between the neighboring blast holes. All the trials were carried out in more or less similar geological conditions. MWD data, swelling, fragmentation and crusher efficiency have been evaluated in the trials. Based on these trials, the short inter-hole delay times did not have a significant effect on fragmentation, swelling and crushability. However, a reduced number of boulders was observed for short delays, suggesting that the coarse region of the distribution curve was influenced rather than the fine part of it.

Place, publisher, year, edition, pages
Moscow: European Federation of Explosives Engineers, 2013
National Category
Other Civil Engineering
Research subject
Mining and Rock Engineering
Identifiers
urn:nbn:se:ltu:diva-27783 (URN)1519210c-845a-40a9-a5ab-a58468a95ffb (Local ID)978-5-98746-016-0 (ISBN)1519210c-845a-40a9-a5ab-a58468a95ffb (Archive number)1519210c-845a-40a9-a5ab-a58468a95ffb (OAI)
Conference
World conference on Explosives & Blasting : 15/09/2013 - 17/09/2013
Note
Godkänd; 2013; 20130529 (nikpet)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-05-28Bibliographically approved
Petropoulos, N., Johansson, D., Nyberg, U., Novikov, E. & Beyglou, A. (2013). Improved blasting results through precise initiation: results from field trials at the Aitik open pit mine (ed.). Paper presented at . : Swedish Blasting Research Centre och Luleå tekniska universitet
Open this publication in new window or tab >>Improved blasting results through precise initiation: results from field trials at the Aitik open pit mine
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2013 (English)Report (Refereed)
Abstract [en]

Blast-induced fragmentation plays a leading role on mining efficiency, hence many studies have been conducted in order to understand the mechanisms behind rock breakage and to improve the fragmentation. This report presents the results from field tests conducted at the Aitik mine belonging to Boliden Mineral AB in Sweden, which is part of a project called Vinnova. The project aims to evaluate the effects of short delay time blasting on fragmentation and other post-blast parameters which influence the comminution process, e.g. swelling and crushing.A total number of 6 benches were assigned for trials with different inter-hole delay times. Two of the benches were blasted with pyrotechnic Nonel caps and were used as references for further comparisons. Two benches were blasted with 1 ms of inter-hole delay time by use of electronic detonators. Two other benches were also blasted by electronic detonators, but with 3 ms and 6 ms of inter-hole delay time respectively. MWD (Measure While Drilling) system was used to log and analyze the drilling process in order to investigate the penetration rate and specific energy of drilling, which represent the hardness of the rock. GPS (Global Positioning System) and RTK (Real time Kinematic System) were used for measurements of benches’ swelling. The blasts were also filmed using a high-speed camera. Image analysis with Split-Desktop software was used to analyze the fragmentation of the rock after blasts. A series of images was shot from trucks carrying the ore and was later analyzed to obtain the fragmentation for each bench. Minestar integrated operation and mobile equipment management system was used to log the data from the fleet in the mine. The data were later used together with the crusher energy consumption logs to evaluate the energy efficiency of the crushing process for the ore from each bench.The tests showed that the inter-hole delay time of 3 ms resulted in the finest fragmentation among all benches; all examined values i.e. x50, x80 and xmax showed improvements upon other benches. However, the crushing energy of the ore from this trial was the highest among all. Two trials with 1 ms inter-hole delay time did not result in any significant variation compared to reference benches. The difference in x50 values were ignorable, the same is true for crushing energy of the mentioned trials. The bench with inter-hole delay time of 6 ms resulted in the lowest crushing energy among other trials. However, the bench gave more boulders and coarser fragmentation compared to reference benches.Altogether, the results did not lead to any solid conclusion regarding the effect of the short delay times on fragmentation. Such ambiguity might be resulted by various sources of errors in data acquisition and analysis, as well as uncertainties regarding geology of the test area. In order to investigate the effect of delay times on blast results, more trials with more detailed data acquisition method is necessary.

Place, publisher, year, edition, pages
Swedish Blasting Research Centre och Luleå tekniska universitet, 2013. p. 117
Series
Swebrec Rapport, ISSN 1653-5006 ; 2013:1
National Category
Other Civil Engineering
Research subject
Mining and Rock Engineering
Identifiers
urn:nbn:se:ltu:diva-25082 (URN)db29fd61-6e39-4e51-862e-0411ecec6927 (Local ID)db29fd61-6e39-4e51-862e-0411ecec6927 (Archive number)db29fd61-6e39-4e51-862e-0411ecec6927 (OAI)
Note
Godkänd; 2013; 20130429 (nikpet)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-05-28Bibliographically approved
Novikov, E. & Miskovsky, K. (2009). The capillarity of mica-rich base-course aggregates (ed.). Paper presented at . Journal of materials engineering and performance (Print), 18(4), 420-423
Open this publication in new window or tab >>The capillarity of mica-rich base-course aggregates
2009 (English)In: Journal of materials engineering and performance (Print), ISSN 1059-9495, E-ISSN 1544-1024, Vol. 18, no 4, p. 420-423Article in journal (Refereed) Published
Abstract [en]

In regions of temperate climate, the destructive influence of frost is the main contributor to damage of a road structure. Commonly, the frost susceptibility of base-course aggregates is often ignored in road construction. However, a number of studies on aggregates for construction purposes, and field observations of road failures, indicate a negative influence of mica-rich rock aggregates (used in unbound applications) on the service life of road construction. The scope of the current work investigates the capillary properties of unbound base-course aggregates with varying free mica grains. The materials studied in this research are commercially available road construction aggregates, and originate from different regions of Sweden. The mineral composition of the samples has been determined by polarizing microscopy using a point-count method. The parameter characterizing the capillarity was measured using the test for determining capillary rise (VVMB24). The results show that there is a direct correlation between mica content of the aggregates and water suction by capillary forces. Therefore, mica-rich materials susceptible to frost heave, thus confirming the tendency for frost damage of unbound aggregates.

Keywords
Civil engineering and architecture - Geoengineering and mining engineering, Samhällsbyggnadsteknik och arkitektur - Geoteknik och gruvteknik
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-3598 (URN)10.1007/s11665-008-9301-x (DOI)000266038900012 ()2-s2.0-67349127327 (Scopus ID)16c9d830-4e84-11de-afea-000ea68e967b (Local ID)16c9d830-4e84-11de-afea-000ea68e967b (Archive number)16c9d830-4e84-11de-afea-000ea68e967b (OAI)
Note
Validerad; 2009; 20090601 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Novikov, E. (2008). The behaviour of mica-rich aggregates under the temperate climate conditions (ed.). (Licentiate dissertation). Paper presented at . Luleå: Luleå tekniska universitet
Open this publication in new window or tab >>The behaviour of mica-rich aggregates under the temperate climate conditions
2008 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

In regions of temperate climate the destructive influence of frost action such as frost heave in winter and thaw weakening in spring are the main contributors to severe deterioration of the pavement structure. A number of studies on construction aggregates and field observations of road failures, especially caused by seasonal fluctuations of temperature, have revealed a negative influence of unbound mica-rich rock aggregates on the service life of road construction. The aim of this thesis was to investigate the behaviour of mica-rich aggregates under the temperate climate conditions. The study focuses on measurements of volume change (frost heave), capillarity rise and interaction between water and mica-rich aggregates. The materials studied in this research are commercially available unbound road construction aggregates with varying free mica grains, and originating from different regions of Sweden. The mineral composition of the samples has been determined by polarizing microscopy using a point-count method. In Paper I, the materials were exposed to freeze-thaw cycling in order to register the volume change (in terms of frost heave). The results show that mica-rich base-course aggregates have a large potential to produce frost heave. The results from the test for determining capillary rise (Paper II) indicate a direct correlation between mica content of the aggregates and capillary rise values confirming the capability of mica-rich unbound aggregates to transport and absorb higher amounts of water. The interaction of mica-rich aggregates with water in terms fraction sizes and free mica content was studied in Paper III, measuring water storage capacity and specific water saturation values. The results reveal a strong positive correlation between mica content, grain size, water sorption and water storage capacity of the aggregates. The overall results of this research bring the mineralogy of the fines into focus when evaluating frost susceptibility of unbound aggregates and can be considered when estimating threshold values of free mica grains in crushed road materials.

Place, publisher, year, edition, pages
Luleå: Luleå tekniska universitet, 2008
Series
Licentiate thesis / Luleå University of Technology, ISSN 1402-1757 ; 2008:25
Keywords
Civil engineering and architecture - Geoengineering and mining engineering, Samhällsbyggnadsteknik och arkitektur - Geoteknik och gruvteknik
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-26516 (URN)e9fc59d0-37c4-11dd-8721-000ea68e967b (Local ID)e9fc59d0-37c4-11dd-8721-000ea68e967b (Archive number)e9fc59d0-37c4-11dd-8721-000ea68e967b (OAI)
Note
Godkänd; 2008; 20080611 (ysko)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-24Bibliographically approved
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