两硬综放面矿压显现规律研究

Study on the law of strata behaviors of fully mechanized mining with sublevel caving in double hard conditions

根据忻州窑矿８９１６综放面的矿压观测，系统地分析了两硬条件下综放开采的矿压显现规律。文章的结论是：两硬条件下的综放面既具有坚硬顶板带冲击载荷的悬梁式破断规律，又具有综放开采的动载系数小，支架载荷低的显现特征，采场控制仍要有高强度的支撑和必要的顶板预处理措施。

Based on the rock pressure observations on the No.8916 fully mechanized face with sublevel caving in Xinzhouyao coal mine,where the coal and the roof are all hard,the law of strata behaviors has been analyzed.The hard roof has both the damage law of cantilever with lash loading and such characters of support in fully mechanized mining with sublevel caving as samll dynamic load coefficient and lower loading.The roof should be treated in advance and supportability must be high strength.