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《Coal Science and Technology》 2014-01
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Present Status and Development Tendency of Fully- Mechanized Coal Mining Technology in Ultra Thick Hard Seam

WANG Jin-hua;China Coal Technology and Engineering Group;  
According to the different geological conditions of the ultra thick hard seam,four mining methods suitable for ultra thick hard seam were comprised and analyzed. The paper introduced the comprehensive weakening coal body technology suitable for the ultra thick hard seam mining and the rapid driving technology and equipment of the large cross section gateway in order to meet the production requirements of the fully- mechanized coal mining. The difficult problems of the ultra thick hard seam mining were solved and the production integration and mechanization degree were improved. Finally,according to the disaster problems faced to the fully- mechanized coal mining face in the ultra thick hard seam,the paper provided the comprehensive safety ensuring technology and put forward the key study point and development tendency to ultra thick hard seam mining.
【Fund】: 国家自然科学基金委员会与神华集团有限责任公司联合基金资助项目(U1261211);; 科技部国际科技合作资助项目(2010DFB73070)
【CateGory Index】: TD823.97
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