大佛寺煤矿综放工作面顶煤垮冒难度分析  

Analysis of Top-coal Caving at Fully Mechanized Caving Coal Face in Dafosi Coal Mine

作　　者：刘沛林 段王拴 石曾武 

机构地区：[1]陕西彬长矿区开发建设有限责任公司,陕西咸阳712000

出　　处：《煤炭技术》2007年第7期50-52,共3页Coal Technology

摘　　要：影响顶煤垮落和破碎特性的主要地质因素有煤体强度、煤层采深、夹矸层特征、煤层厚度、煤体裂隙、煤层顶板特征等。运用模糊综合评价方法,采用顶煤垮冒难度指数,判别大佛寺煤矿综放面顶煤为坚硬顶煤,垮冒难度较大。The main geological factors which influenced top coal caving and broken characteristic contain： the strength of coal, the mining depth of coal seams, the features of coal seams with middle band, the thickness of coal seam, the fissures of coal, the roof features of coal-bed, etc. This paper employs the method of fuzzy Comprehensive Evaluation, uses the difficulty index of top coal caving, and finally draws the conclusion that the top-coal of fully mechanized caving face in Dafosi Coal Mine is a kind of hard-top-coal, so that the difficulty of caving is very lavge.

关 键 词：煤体强度 煤层采深 夹矸层特征 煤层厚度 煤体裂隙 煤层顶板 垮冒难度指数 

分 类 号：TD823[矿业工程—煤矿开采]