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近距离煤层群上行开采可行性关键技术研究

     

摘要

Close distance coal seam group of ascending mining as a basic mean of pressure relief mining,it has been the hot and difficult problem of coal industry,according to current mining situation of Jingu mine,according to geological exploration data,the use of theoretical calculation and numerical simulation of Jingu upward mining feasibility of No.11 coal seam mining were studied,using the theory of three zones criterion to evaluate the feasibility of ascending mining,in combination with similar physical simulation experiment,to study No.10 coal seam in the process of ascending mining stope roof migration characteristics,for ascending mining theory with a strong support,to achieve safe and efficient mining of the mine.%近距离煤层群上行开采作为卸压开采的基本手段,一直是煤炭行业的热点和难点问题,针对金谷矿目前的开采现状,根据金谷矿地质勘探资料,利用理论计算和数值模拟对金谷矿11号煤层的上行开采可行性进行了研究,利用三带判别法理论计算评价了上行开采的可行性,结合相似物理模拟实验,研究了上行开采过程中10号煤层采场顶板运移特征,为上行开采理论提供了有力支撑,实现了矿井的安全高效回采.

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