急倾斜煤层顶煤可放性评价模型及应用  

Model and its application on the evaluation of degree of difficulty of top coal caving in steep seam

作　　者：朱川曲[1] 缪协兴[2] 

机构地区：[1]湘潭工学院资源工程系,湖南湘潭411201 [2]中国矿业大学理学院,江苏徐州221008

出　　处：《煤炭学报》2002年第2期134-138,共5页Journal of China Coal Society

基　　金：原煤炭工业部科研项目 ( 94-32 4)

摘　　要：急倾斜煤层巷道放顶煤开采顶煤可放性受到煤层强度、开采深度、煤层厚度、倾角、顶底板条件、夹矸、其它开采条件等因素的综合影响 .在巷道放顶煤工业性试验及开采实践的经验和统计数据分析的基础上 ,构造了顶煤可放性影响因素的评价函数 ,建立了灰色 -模糊评价模型 .实际应用表明 ,该模型准确、简便 。The degree of difficulty of top coal caving of roadway sub level caving mining in steep seam is synthetically influenced by many factors such as intensity of coal, mining depth, coal seam thickness, pitch, roof and floor, parting and miscellaneous mining condition. On the basis of analysis of the experience and statistical data on the test and mining examples of roadway sub level caving in steep seam, the evaluation functions of the factors influencing the degree of difficulty of top coal caving are structured and the grey fuzzy evaluation model is established. The application of examples shows that the model is accurate and simple, and plays an important part in the design and production management of roadway sub level caving mining in steep seam.

关 键 词：顶煤 可放性 评价模型 急倾斜煤层 巷道 放顶煤开采 

分 类 号：TD823.49[矿业工程—煤矿开采]