Comparative Analysis of Ecological Rucksack Between Open-pit and Underground Coal Mine
نویسندگان
چکیده
منابع مشابه
a comparative analysis of the marginal microleakages of two pit and fissure sealans, conseal-f and conseal clear
چکیده ندارد.
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There are some large scale orebodies that extend from surface to the extreme depths of the ground. Such orebodies should be extracted by a combination of surface and underground mining methods. Economically, it is highly important to know the limit of upper and lower mining activities. This concern leads the mine designers to the transition problem, which is one of the most complicated problems...
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ژورنال
عنوان ژورنال: Energy Procedia
سال: 2011
ISSN: 1876-6102
DOI: 10.1016/j.egypro.2011.03.196