庄旺煤矿综放工作面顶煤冒放性分析

Analysis of Top Coal Caving Behavior in Fully Mechanized Caving Face of ZhuangwangCoal Mine

结合庄旺煤矿50208综放工作面煤层赋存特征,系统分析了开采深度、煤层强度、煤层厚度、煤层夹矸、煤层顶板及顶煤节理裂隙对综放工作面顶煤冒放性的影响,并通过隶属度法对庄旺煤矿顶煤冒放性的影响因素进行计算,做出综合评价,最终计算得工作面顶煤冒放性隶属度值μ为0.701,冒放等级为中等。因此,庄旺煤矿采用综采放顶煤回采工艺是可行的。

Combined with the occurrence characteristics of coal seams in 50208 fully mechanized caving face of Zhuangwang Coal Mine,this paper systematically analyzed the effects of mining depth,coal seam strength,coal seam thickness,coal seam gangue,coal roof and top coal joints and cracks on the top coal caving behavior of the fully mechanized caving mining face,calculated the influencing factors of the top coal caving of Zhuangwang Coal Mine through the membership method to make a comprehensive evaluation,and finally calculated that the top coal caving membership degree valueμof the working face was 0.701,and the caving grade was medium.Therefore,it is feasible to adopt fully mechanized top coal caving mining technology in Zhuangwang Coal Mine.