progressive technologies of coal coalbed methane and ores mining

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Progressive Technologies Of Coal Coalbed Methane And Ores Mining

Author : Volodymyr Bondarenko
ISBN : 9781138026995
Genre : Science
File Size : 29. 8 MB
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Presenting new technologies in underground coal extraction, with special attention to mine galleries support and maintenance, load mechanism of "massif-support system-safety system" systems, analysis of face equipment for thin coal seams mining and substantiation of rational stoping parameters. Advanced surface mining technologies of coal and ore are discussed in an original form, stability calculations of internal dumps and open-cut faces are presented, as well as examination of land surface subsidence using modern methods of calculation experiments. Special attention is given to the complex mining of mineral resources, such as: iron ore, coal deposits with drilling advance degassing wells, methane extraction from coal and anthropogenic deposits, heat receipt from mine water with help of thermal pumps. The unique geological conditions for mining in Poland and the Ukraine require a new technological approach for mining thin and very thin coal seams with thickness of 1 meter and less, using selective coal extraction methods, leaving rock behind in the mine. Relevant technological solutions are discussed in this volume. Further, technological process control during coal seams underground gasification is described together with pressure-temperature conditions of gas hydrates formation from gaseous mixtures of various content. Substantiation is also given to gas hydrates extraction technologies development and 21st century new pulse technologies of well drilling and a temperature mode of a rock-cutting tool and equipment with cryogenic-gravel filters is examined. Gas extraction processes located in flooded deposits with uniform and macroheterogeneous collectors are presented with the description of an effective methodology of two-subbench technology of ore deposits extraction.

2014

Author : Коллектив авторов
ISBN : 9785040815616
Genre : Education
File Size : 58. 7 MB
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Mining Of Mineral Deposits

Author : Genadiy Pivnyak
ISBN : 9781315867472
Genre : Technology & Engineering
File Size : 41. 33 MB
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In the last decades coal production capacity has increased rapidly and its quality, power and the reliability of equipment has steadily improved. Moreover, stability of production processes can be controlled better. In connection with that, unification of scientific schools focusing on "Mining of deposits" is an integral trend from the viewpoint of technical and technological policy. This collection of papers represents the scientific and technical achievements with regard to mineral deposits mining intensification based on effective use of modern techniques and technologies. Also, specific attention is paid to progressive and innovational technologies in the coal industry of leading countries. Widening the range of mining-geological conditions under which drivage and maintenance of mining activities are carried out, requires application of new constructive decisions. Hence, this collection of papers is focusing on the following topics: results of new equipment introduction; experiments on mutual interaction of roof support elements, protective construction and near-the-contour rock massif; analytical and calculation methods of geomechanical tasks solution; development of gas hydrates and technologies of underground coal gasification; studies on environment protection; economic aspects; management and marketing in mining production, and other important aspects of mineral deposits exploitation.

Stromversorgung Mit Windgeneratoren

Author : Hans Kurt Köthe
ISBN : 3772344917
Genre :
File Size : 38. 88 MB
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Gesteinsbildende Minerale Im D Nnschliff

Author : Hans Pichler
ISBN : STANFORD:36105016898749
Genre : Mineralogy
File Size : 20. 34 MB
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Der Weg Nach Wigan Pier

Author : George Orwell
ISBN : 9783257602517
Genre : Fiction
File Size : 26. 41 MB
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Im Jahr 1936 geht George Orwell in die Industriestädte Nordenglands, um an Ort und Stelle zu beobachten, wie Bergleute im Alltag arbeiten und wohnen. Er steigt mit in die Gruben hinunter und berichtet aufmerksam, sachlich, genau, mit Einfühlung und Gespür für die vielfachen Zusammenhänge. Diese Erfahrung führt zu Reflexionen über den Sozialismus als umsichtigen, schwierigen Weg zu Gerechtigkeit und Freiheit.

The Ausimm Annual Conference 1995

Author : Australasian Institute of Mining and Metallurgy. Conference
ISBN : PSU:000031403351
Genre : Metallurgy
File Size : 39. 90 MB
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Menschenrechte

Author : Leah Levin
ISBN : 3854092954
Genre : Civil rights
File Size : 26. 56 MB
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Government Reports Announcements Index

Author :
ISBN : WISC:89051406940
Genre : Science
File Size : 69. 7 MB
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Bulletin

Author :
ISBN : MINN:31951D00334389E
Genre : Automobiles
File Size : 32. 59 MB
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