特厚煤层放顶煤开采的试验  

Test on top coal caving mining in special thick seam

作　　者：王振[1] 刘长友[1] 黄炳香[1] 吴锋锋[1] 刘奎[1] 

机构地区：[1]中国矿业大学能源与安全工程学院,江苏徐州221008

出　　处：《煤炭科学技术》2006年第2期43-45,共3页Coal Science and Technology

摘　　要：放顶煤回采工艺参数的合理选取,对顶煤的有效回收起着重要的作用。采用实验室相似模拟的方法,从采放比、放煤步距等决定顶煤垮落空间的因素和顶煤块度等方面分析了其对顶煤垮落的影响,为特厚煤层综放开采顶煤回收率的提高提供理论依据。The rational selection of the technique parameters playeo an important role in the effective recovery of top coal. With the similar simulation method in lab, the paper analyzed the mining and caving rate, caving distance between steps and other affected to the top coal caving space as well as the iump coal from top coal influenced to top coal caving. The analysis provided the theoretical bases to improve the coal recovery rate of the fully mechanized longwall top Coal caving and mining in special thick seam.

关 键 词：放顶煤 相似模拟 采放比 

分 类 号：TD823.49[矿业工程—煤矿开采]