含夹矸煤层综放开采顶煤冒落与放出规律研究  

Thick coal seam with caving mining with top-coal caving release law research

作　　者：李佳佳[1] 邓秘 

机构地区：[1]淮南矿业集团,安徽淮南231174

出　　处：《煤矿现代化》2016年第5期15-16,18,共3页Coal Mine Modernization

摘　　要：本文采用离散元PFC2D软件模拟出不同移架步距、不同放煤方式、不同粒径配比顶煤放出规律,分析了不同工艺以及不同块度煤与矸石条件下顶煤的放出率,对现场放煤工艺参数优化,提高综放开采回收率提供了理论依据。This paper is based on the discrete element software PFC2D simulating different step distance , different Top-coal release way, different diameter ratio of the release regularity of top coal . Analyzing the different process and different under the condition of coal and waste rock fragmentation top-coal release rate . Parametering optimization of the coal technology, improving the recovery rate of full-mechanized caving mining provides a theoretical basis

关 键 词：移架步距 放煤方式 块度 回收率 

分 类 号：TD823.4[矿业工程—煤矿开采]