Abstract
The pit limit optimization is discussed, which is one of the most important problems in the combined mining method, on the basis of the economic model of ore-blocks. A new principle of the limit optimization is put forward through analyzing the limitations of moving cone method under such conditions. With a view to recovering as much mineral resource as possible and making the maximum profit from the whole deposit, the new principle is to maximize the sum of gain from both open-pit and underground mining. The mathematical models along the horizontal and vertical directions and modules for software package (DM&MCAD) have been developed and tested in Tonglushan Copper Mine. It has been proved to be rather effective in the mining practice.
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References
Lerchs H, Grossmann I F. Optimum design of open pit mines[J]. Canadian Institute of Mining Bulletin, 1965, 57(1): 47–54.
Schofield D D. Advanced computer techniques: developments for the minerals industry towards the new millennium[A]. Proceedings of Mining Science and Technology[C]. Beijing, 1999.
LI Ding-quan. Characteristics of transition from openpit mining to underground mining[J]. Metal Mine, 1994, 212(2):8–13.
Smith M L, Dimitrakopoulos R. The influence of deposit uncertainty on mine production scheduling[J]. Int J Surf Min, 1999, 38(3): 61–64.
Diering J A C. Algorithm for variable slope pit generation[A]. Proceedings 18th APCOM Symposium[C]. Beijing, 2000.
WANG Li-guan, DENG Shun-hua, CHEN Jian-hong. The study of deposit model & mining computer aided design software system[J]. Journal of Central-South Institute of Mining and Metallurgy(in Chinese), 1994, 25(5):575–579.
CHEN Jian-hong, DEN Shun-hua, WANG Li-guan. Development of open-pit mining and planning CAD software based on integrated graphic environment[J]. China Mining Magazine(in Chinese), 1996, 5(3):73–77.
HU Fu-xiang. Optimization of open-pit mining boundary in the combined mining horizontally of surface and underground[J]. Metal Mine, 1997, 252(6): 27–31.
CHEN Jian-hong. Design and development of automatic creation software for surface mine boundary drawings[J]. Technology for Chemical Mines, 1998, 25(3):17–21.
CHEN Jian-hong, DENG Shun-hua, WANG Li-guan. Application of geostatistics to classification of ore reserve[J]. Journal of Central South University of Technology(in Chinese), 1996, 27(2):140–144.
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Foundation item: Project (59704004) supported by the National Natural Science Foundation of China; Project (2000) supported by Foundation for University Key Teacher by the Ministry of Education
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Chen, Jh., Gu, Ds. & Li, Jx. Optimization principle of combined surface and underground mining and its applications. J Cent. South Univ. Technol. 10, 222–225 (2003). https://doi.org/10.1007/s11771-003-0013-y
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DOI: https://doi.org/10.1007/s11771-003-0013-y
Key words
- surface mining
- underground mining
- combined mining method
- optimization model
- open pit limit
- block economic model