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Layout and support design of a coal roadway in ultra-close multiple-seamsYAN Hong(严红)1, WENG Ming-yue(翁明月)2,FENG Rui-min(冯锐敏)3, LI Wei-kang(李伟康)1(1. School of Mines, Key Laboratory of Deep Coal... coal roadways to deal with in underground coal mines. This is usually due to the unknown stress distributions, improper roadway layout, and unreasonable support parameters. In order to solve......
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J. Cent. South Univ. Technol. (2009) 16: 0160-0165 DOI: 10.1007/s11771-009-0027-1 Main influencing factors and coal fly ash characteristics of gasoues fuel reburning process SU Sheng(苏 胜), XIANG Jun(向 军), SUN Lu-shi(孙路石), HU Song(胡 松) (State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology,Wuhan 430074, China) ......
Failure probability analysis of coal crushing induced by uncertainty of influential parameters under condition of in-situ reservoirZHANG Li-song(张立松)1, YAN Xiang-zhen(闫相祯)1, YANG Xiu-juan(杨秀娟)1... Petroleum Corporation, Beijing 100097, China)Abstract:The uncertainties of some key influence factors on coal crushing, such as rock strength, pore pressure and magnitude and orientation of three......
Numerical simulation analysis of covering rock strata as mining steep-inclined coal seam under fault movementMA Feng-hai, SUN Li, LI Dun(College of Civil and Architectural Engineering, Dalian University, Dalian 116622, China)Abstract:The fault is one important factor for the stability of overburden strata caused by steeply inclined coal seam. The stress and displacement change of overburden......
; coal gangue; ammonium illite; nitrogen; environmental effects; [全文内容正在添加中] ......
of the spontaneous combustion depth of the inter gangue hill [20]. This study modifies the equation to estimate depth of the ignition point of the underground coal fire. Fig. 9 Temperature distribution value in ground cracks Considering that the studied area is mainly filled with coal combustion, the equation was modified by canceling the gangue carbon content correction value. The new coal......
J. Cent. South Univ. Technol. (2008) 15: 840-844 DOI: 10.1007/s11771-008-0155-z Slagging characteristics of molten coal ash on silicon-aluminum combustion liners of boiler HE Jin-qiao(何金桥)1, 2...; Abstract: In order to study the slagging characteristics of boiler combustion liners during pulverized coal stream combustion, the slag samples on the surface of combustion liner were investigated......
J. Cent. South Univ. Technol. (2011) 18: 633-641 DOI: 10.1007/s11771-011-0741-3 Application of extension neural network to safety status pattern recognition of coal mines ZHOU Yu(周玉)1, 2, 3, W... pattern of coal mines, a new safety status pattern recognition method based on the extension neural network (ENN) was proposed, and the design of structure of network, the rationale of recognition......
