Scholarly record
INVESTIGATION OF ORE EXTRACTION INDICATORS IN THE AREA DRAW DEPENDING ON THE DESIGN OF DRAWPOINTS
Abstract
Today a sufficient number of analytical methods for determining extraction indicators for geotechnologies that produce broken ore has been developed. At the same time, they are characterized by certain difficulties, mainly due to the restriction in more fully taking into account the structural (geometrical) complexity of the production horizon and loading points. Therefore, the numerical simulation of the outflow of bulk material by discrete element method is becoming increasingly important to improve the reliability and accuracy of the results of determining of the loss and dilution of ore during production. The results of mathematical modeling of areal ore production using self-propelled machines depending on the parameters of the loading point are given in relation to the development of an extensive tubular deposit by a development system with a collapse taking into account the actual design features of the block bottom. Evaluation of indicators of the completeness and quality of extraction of mineral reserves carried out by comparing the mass of released ore and rock. The optimum ratio of the substage height to the distance between the delivery drifts is established at which the best extraction rates are ensured.
Publication Impact Profile
Publication details
References11
Widijanto E., Gautama R., Siburian P., Sirait J., Yuniar A. Slope optimization program to maximize pit value Grasberg surface mine, Papua – Indonesia, 10th Asian Rock Mechanics Symposium, ARMS 2018, Singapore, 2018.
Ordin A.A., Nikolsky A.M., Golubev Yu.G. Lag modeling and design capacity optimization at operating diamond placer mines "Solur" and "Vostochny" Republic of Sakha (Yakutia), Journal of Mining Science 48(3), Russia, pp 515- 524.
Eberhardt, E. Woo, K. Stead, D. Elmo, D. Transitioning from open pit to underground mass mining: Meeting the rock engineering challenges of going deeper, 13th ISRM International Congress of Rock Mechanics, Montreal, Canada, 2015.
Zhirnov A.A., Abdrakhmanov S.U., Shaposhnik Yu.N., Konurin A.I. Rock mass stability estimation and selection of mine support design at Orlov complex ore deposit, Gornyi Zhurnal (3), 2018, pp 51-57.
Yadav P., Sharan S. Numerical Investigation of Squeezing in Underground Hard Rock Mines, Rock Mechanics and Rock Engineering, V. 52, Iss. 4, 2019, pp 1211-1229.
Li, T. Peng, Y. Zhu, Z. Zou, S. Yin, Z. Discrete element method simulations of the inter-particle contact parameters for the mono-sized iron ore particles, Multidisciplinary Digital Publishing Institute, V. 10, Iss. 5, 2017, art. 520.
Li, T. Wu, A.-X. Han, B. Feng, Y.-T. Sun, W. Discrete element method study on the percolation process of fine particles in ore drawing by the block caving method, Chinese Journal of Engineering, V. 38, Iss. 11, 2016, pp 1509-1514.
Jin, A. Sun, H. Ma, G. Gao, Y. Wu, S. Meng, X. A study on the draw laws of caved ore and rock using the discrete element method, Computers and Geotechnics, V. 80, 2016, pp 59-70.
Huang, X.-B. Xue, Z.-L. Wang, W. Lu, X.-W. Numerical simulation on packing behavior of iron ore granules, Journal of Iron and Steel Research, V. 29, Iss. 7, 2017, pp 536-543.
Šmilauer V. et al. (2015), Yade Documentation 2nd ed. The Yade Project. DOI: 10.5281/zenodo.34073 (http://yade-dem.org/doc/)
Zvarivadza T., Sengani F. Evaluation of in-stope pillar failure: A case study of deep to ultra-deep level gold mining in South Africa, ROCDYN-3, 2018, pp 675- 680.
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.
