Study on Dragline-Bulldozer Operation with Variations in Coal Seam Thickness  

作　　者：ZHOU Wei CAI Qing-xiang CHEN Shu-zhao 

机构地区：[1]School of Mining and Safety Engineering, China University of Mining ＆Technology, Xuzhou, Jiangsu 221008, China

出　　处：《Journal of China University of Mining and Technology》2007年第4期464-466,共3页中国矿业大学学报（英文版）

基　　金：Projects 50474069 supported by the National Natural Science Foundation of China;2006BAB16B00 by the State Scientific and Technological Project of the 11th Five-Year Plan

摘　　要：The dragline is one of the most promising surface mining machines in China. This paper studies the interac-tion between the working bench advancing speed and the stripping volume with variation in coal seam thickness. Ad-justing the bulldozing volume (depth) and/or changing the dragline bench height are proposed as means to ensure a smooth and economical mining operation. When the coal seam is getting thicker it is recommended to reduce the bull-dozing volume (depth) for a higher dragline efficiency. When the coal seam is getting thinner it is recommended to in-crease the bulldozing volume (depth) to ensure the dragline can work at the proper bench height.The dragline is one of the most promising surface mining machines in China. This paper studies the interac-tion between the working bench advancing speed and the stripping volume with variation in coal seam thickness. Ad-justing the bulldozing volume （depth） and/or changing the dragline bench height are proposed as means to ensure a smooth and economical mining operation. When the coal seam is getting thicker it is recommended to reduce the bull-dozing volume （depth） for a higher dragline efficiency. When the coal seam is getting thinner it is recommended to in-crease the bulldozing volume （depth） to ensure the dragline can work at the proper bench height.

关 键 词：open pit coal thickness variation DRAGLINE ADAPTABILITY BULLDOZER 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]