半孤岛超长综放面矿压显现规律研究  

Mine Strata Behavior Law of Half Island Super- Long Fully Mechanized Top Coal Caving Face

作　　者：黄霆 

机构地区：[1]潞安环能股份公司常村煤矿,山西长治046102

出　　处：《煤炭工程》2015年第9期68-70,共3页Coal Engineering

摘　　要：基于KJ327矿山压力监测系统,分析了潞安集团常村煤矿北3-3半孤岛超长综放工作面液压支架支护阻力的循环变化规律和工作面沿倾斜方向上的压力分布特征,结果表明:半孤岛超长综放面具有明显分段来压和周期来压特征;在工作面倾斜方向上,实体煤侧、中部与孤岛侧压力呈递增状态,距端头尾各50m左右出现相对峰值,为顶板管理的重点;孤岛侧轨道巷围岩变形明显。Based on the mine pressure monitoring system of KJ327, the paper analyzes the cyclic change law of hydraulic supporting resistance and pressure distribution characteristic along the dip in N3 - 3 super - long fully mechanized top - coal caving half island face in Changcun Coal Mine. The results show that, the characteristics of half island super - long fully mechanized top coal caving face is as follows： （1） obvious subsection weighting and periodic weighting; （2） a progressive increase is showed in pressure on side and central part of the entity coal as well as the half island lateral pressure, the peaks shows at about 50 meters away from two ends along the dip of working face, which is the key point of roof management; （3） the surrounding rock deformation is obvious in track roadway of the island side.

关 键 词：半孤岛 超长综放面 矿压规律 分段来压 监测系统 

分 类 号：TD323[矿业工程—矿井建设]