摘要
通过对近距离大倾角综放工作面矿压实测数据的分析,获得工作面矿压显现的规律:工作面中部来压步距较小,来压强度较低,并进一步探析了内在的形成原因。由近距离大倾角工作面开采相互影响得知工作面中部和两端呈现两种不同的覆岩结构模型,中部主要承受静载荷的作用,两端承受动载荷的作用。
With the analysis on the mine strata pressure measured data of the fully mechanized top coal caving mining face in high inclined seam with short distance neighbouring coal mining faces, the mine strata pressure behavior law of the coal mining face was obtained. The pressurized step at the middle of the coal mining face was small, the pressurized strength was low and the intrinsic formation cause was further discussed. The mutual mining influences of the coal mining faces in high inclined seam with short distance to each other showed that the middle and two ends of the coal mining face would have two different overburden strata structure model, the middle of the coal face would mainly take the static load function and the two end of the coal face would take the dynamic load function.
出处
《煤炭工程》
北大核心
2012年第8期79-80,84,共3页
Coal Engineering
基金
"十二五"国家科技支撑计划资助项目(2012BAK04B08)
关键词
近距离煤层
大倾角
松散厚煤层
综放开采
seams with close distance to each other
high inclination
loose and thick seam
fully mechanized top coal caving mining
