大采高综放面初采阶段顶板运动规律研究

Study on Roof Movement Law in Fully-mechanized Top Coal Caving Mining Face with Large Mining Height During Initial Mining Period

为确定长春兴煤矿301综放工作面初采阶段顶板运动规律,保证综放工作面安全高效回采,针对22煤层具体情况,运用"传递岩梁"理论,采用理论分析推算的研究方法对301综放工作面初采阶段顶板运动参数进行了计算,构建了301综放工作面初采阶段顶板结构模型。

In order to determine the roof movement law of No.301 fully-mechanized top coal caving mining face during initial mining period in Changchunxing mine, to ensure safety and efficiency of fully-mechanized top coal caving mining face, according to the specific situation of 22 coal seam, applying the ＂transferring beam＂ theory ,using the research methods of theoretical derivation to calculate the roof movement parameters of No.301 fully-mechanized top coal caving mining face during initial mining period.