Coal Exploration and Mining Geology
نویسنده
چکیده
منابع مشابه
Improvement of coal mine roof rating classification using fuzzy type-2
One of the main concerns of an underground coal mining engineer is the safety and stability of the mine. One way that the safety and stability can be ensured is to know and understand the coal mine geology and how it reacts to the mining process. One technique that has shown a lot of success in the coal mining industry for geologic technical evaluation purposes is the coal mine roof rating (CMR...
متن کاملMining complex geology, mitigation of float dust, and developing autonomous machine capability using horizon sensing technology for coal seam boundary detection
Chief Executive Officers of the National Mining Association (NMA) for the Mine of the Future (MOF) and their prioritized Technology Development Road Map, together with a 2010 Section 11 National Research Council/National Engineering Academy Study, confirmed that boundary detection in coal and metal/nonmetal mining remains a mining technology gap. The National Aeronautical and Space Administrati...
متن کاملFactor Intensity and Site Geology as Determinants of Returns to Scale in Coal Mining
-Increasing returns to scale (RTS) is frequently postulated as affecting productivity in surface coal mining. However, it is not clear whether increased capital intensity or increased output is the relevant phenomenon. A ray-homothetic production function that incorporates the capital-labor mix and fixed site geology into the scale elasticity is presented and estimated with a micro (mine level)...
متن کاملStability Analysis of Fly Ash over Burden Backfill Structure Using Physical Modeling Techniques
Due to rapidly growing energy needs and the resultant rise in the use of coal to meet them, exploration and exploitation of coal resources has seen exponential growth. Global concerns about the environmental impact of coal exploitation have led to an increasing shift to open-cast mining of coal, in place of the traditional deep-pit mining. This has led to search for a suitable method of handlin...
متن کامل1002 MITE-o132/6.5/ds r3
ational statistics on coal-mining productivity show that—except during the 1970s—coal mines have become steadily more efficient. More coal is removed per hour of work, causing a drop in both mining costs and coal prices. However, a new Energy Laboratory study suggests that those national statistics do not tell the whole story. When the researchers analyzed productivity data for more than ninete...
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