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Journal of Mining and Environment، جلد ۱۲، شماره ۱، صفحات ۱۳۹-۱۴۹
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عنوان انگلیسی Determination of an Optimum Interface between Open-Pit and Underground Mining Activities in Mazinu Coal Mine of Tabas Power Plant
چکیده انگلیسی مقاله Due to the gradual deepening of the Mazinu coal seams from the ground surface, both the open-pit (OP) and underground (UG) mining methods can be applied for extracting them. Thus, it is a necessity to determine the interface of these mining methods optimally. The present paper aims to determine this interface by generating different scenarios using the OP phases and their relative underground stopes, and comparing them with each other. In this regard, an economic block model is created based on the calorific value of the coal portions involved by each block along with the required economic and technical parameters. Then using the Lerchs-Grossman algorithm, the OP phases are created. Proportional to each phase, the production scheduling of underground stopes is executed. Finally, in order to opt the best scenario, the net present value of the whole project (OP & UG) achieved from different scenarios are compared with each other. The results obtained indicate that the optimum interface of the OP and UG mining activities correspond to the ultimate OP limit with a maximum depth of 200 m from the ground surface.
کلیدواژه‌های انگلیسی مقاله Mazinu Coal Mine, Optimum mining interface, Open pit mining, Underground Mining, Tabas Coal-fired power plant
نویسندگان مقاله A. Soltani Khaboushan |
Faculty of Mining and Metallurgy Engineering, Amirkabir University of technology, Tehran, Iran

M. Osanloo |
Faculty of Mining and Metallurgy Engineering, Amirkabir University of technology, Tehran, Iran

نشانی اینترنتی http://jme.shahroodut.ac.ir/article_1839_1e7ef056a171d5c93d7b84e9f5d91f04.pdf
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