NDLI: Transition from open-pit to underground in the case of Chah-Gaz iron ore combined mining

Content Provider	Springer Nature Link
Author	Bakhtavar, E.
Copyright Year	2013
Abstract	Geological and economic modeling of an ore body and also optimization of the depth at which transition is made from open-pit to underground mining is an important part of the mining design process in large and massive deposits. In this paper, a geological block model of Chah-Gaz iron ore deposit located in Iran was first created based on iron ore cut-off grade. Then with considering the economic parameters in the geological block model an economic model was derived. The economic block model of the deposit was used to determine the transition from open-pit to underground mining. The transition depth determination process was mathematically modelled for the case study. The objective function was chosen to be the maximization of the total profits earned from the combination of both open-pit and underground mining of the deposit. Chah-Gaz transition problem was finally solved by developing MATLAB optimization based code. The results obtained indicate a transition depth of 450 m.
Starting Page	955
Ending Page	966
Page Count	12
File Format	PDF
ISSN	10627391
Journal	Journal of Mining Science
Volume Number	49
Issue Number	6
e-ISSN	15738736
Language	English
Publisher	Pleiades Publishing
Publisher Date	2014-05-07
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Mathematical programming transition open-pit to underground combined mining Chah-Gaz Geotechnical Engineering & Applied Earth Sciences Geophysics/Geodesy Earth Sciences Mineral Resources
Content Type	Text
Resource Type	Article
Subject	Geology Geotechnical Engineering and Engineering Geology

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