Dumped material and collector elements, with defined edge conditions on the model borders, are separated by colour Figure 9 shows a distribution of vertical displacements and cracks appearance in coating, for the presumed embankment height of 100 m. Figure 9. Distribution of vertical displacements and cracks appearance in coating, for presumed embankment height of 100 m Fig. 9 shows displacement inside the collector of approximately 1.0 cm. Fig. 10 and 11 show size of effective and vertical stresses in the collector elements. Figure 10. Effective and vertical stresses in the collector elements Figure 11. Effective and vertical stresses in the collector elements No 1,2010. 35 MINING ENGINEERING
Model of embankment material and basic soil were analyzed by the Mohr – Coulomb fracture condition, and model of collector material as the concrete material with the following characteristics: MB40, E = 24·10 5 kN/m 2 and the Poisson coefficient ν = 0.15 Size of collector relative subsidence is 18 [cm], while maximum collector depression is 35 cm. CONCLUSION Since the collector is the capital facility for a mine, particular attention should be paid to its development and environment of collector location (due to the stress-deformation condition). It is necessary to set up the stable benchmarks near inlet and outlet of the collector before taking any rehabilitation measures, and those benchmarks would be connected to the State trigonometric network and had the absolute elevations. With this absolute elevation, zero measurement of roof and floor should be made with precision levelling as the condition of these two points could be observed. All measurements and observations made on the collector under the open pit "Bogutovo selo“ in Ugljevik can be applied to the Kriveljska river tunnel. REERENCES [1] Study on the Results of Collector Auscultation Under the Open Pit “Bogutovo selo” in Ugljevik (in Serbian) [2] M. Ljubojev, M. Avdić, D. Ignjatović, L. Dj. Ignjatović, The Effect of Flotation Tailing Dump Field 2 on the Stability of the Kriveljska River Tunnel, Mining Engineering, 2/2009, pgs. 21 – 28, <strong>Bor</strong> 2009 (in Serbian) [3] M. Ljubojev, R. Popović, Basics of Geomechanics, RTB <strong>Bor</strong>, Copper <strong>Institut</strong>e <strong>Bor</strong>, 2006 (in Serbian) [4] M. Ljubojev, D. Ignjatović, L. Dj. Ignjatović, S. Krstić, Z. Stojanović, Evaluation of the Rock Stability of the Kriveljska River Tunnel Formed by Comparison of Classification the Rock Strength, Journal COPPER, No. 1, 2009, Vol. 34, pgs. 9-14 (in Serbian) [5] M. Ljubojev, Z. Stojanović, D. Mitić, D. Ignjatović, The Proposal of Method for Construction the New Tunnel of the Kriveljska River, Innovation and Development, No. 1, 2009, pgs. 51-60 (in Serbian) [6] M. Ljubojev, M. Avdić, M. Bugarin, R. Popović, D. Ignjatović, Tunnel Analysis in the Fault Zones and the Effects of Stress distribution on the Support, 2009, Journal of Mining and Metallurgy, Vol. 45, No. 1, pgs. 49-57. No 1,2010. 36 MINING ENGINEERING
- Page 2 and 3: INSTITUT ZA RUDARSTVO I METALURGIJU
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COMMITTEE OF UNDERGROUND EXPLOITATI
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Table 2. Degrees of metal leaching
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70%. Dreniranje izdani vrši se po
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do kote K+656 m gde su postavljene
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COMMITTEE OF UNDERGROUND EXPLOITATI
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is very abundant feeding aquifers.
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Start-minute maximum intensity of d
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Figure 3. Operation diagram of pump
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Zlato u koncentratu kg - 27,988 12,
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Na samlevenim uzorcima topioničke
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Dry concentrate t 5,226 10.563 5.82
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Sadržaj klase -75μm , % 100 80 60
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Tab. 1. Koordinate temena eksploata
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Eksploatacija ležišta rude bakra
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Figure 3. Mutual position of open p
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underground water in the first wate
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gde su: v r - brzina protoka: u r -
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z and r - cylindrical coordinates
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KOMITET ZA PODZEMNU EKSPLOATACIJU Y
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da zaštiti podzemne vode od kontam
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• Otpadne vode od samog postrojen
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Practically, the “in-situ” expl
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• Waste water created during the
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geotektonska zona prema severoistok
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Osmatrani režim izdašnosti i temp
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Sl. 4. Kružni dijagram hemijskog s
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15. Nikl (Ni) 0,012±0,00500 UP-919
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alneoterapijskih i sportsko-rekreat
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phase are presented by andesite bas
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Figure 1. Hydro-geology maps of the
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Spring 2 Figure 3. Circle diagram o
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12. Lead (Pb)
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ecreational activities. The beginni
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UTICAJ GRANULOMETRIJSKOG SASTAVA ML
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SADR@AJ CONTENS D. Sokolović, D. E