CAJ | 학술논문

由于敏东一矿工作面矿压显现特别剧烈，对煤矿的安全生产构成严重威胁，设计2种支架阻力监测方案观察敏东一矿矿压显现特征，结合敏东一矿具体矿压实测数据，对工作面周期来压期间动载系数和周期来压步距的关系进行研究，得出动载系数与周期来压步距呈指数函数关系并且随周期来压步距的增大而增大。同时通过监测观察到工作面中部支架工作阻力大于工作面两端头支架工作阻力的矿压显现特征，经过理论分析和数值模拟，认为产生此特征的主要原因是顶板岩层的损伤程度不同。工作面中部支架区域定义为危险区，应特别注意提高中部支架初撑力，从而减少片帮几率，保证工作面安全生产。
유우민동일광공작면광압현현특별극렬，대매광적안전생산구성엄중위협，설계2충지가조력감측방안관찰민동일광광압현현특정，결합민동일광구체광압실측수거，대공작면주기래압기간동재계수화주기래압보거적관계진행연구，득출동재계수여주기래압보거정지수함수관계병차수주기래압보거적증대이증대。동시통과감측관찰도공작면중부지가공작조력대우공작면량단두지가공작조력적광압현현특정，경과이론분석화수치모의，인위산생차특정적주요원인시정판암층적손상정도불동。공작면중부지가구역정의위위험구，응특별주의제고중부지가초탱력，종이감소편방궤솔，보증공작면안전생산。
Underground pressure of mining face in Mindong 1st Mine was very strong and seriously threatened safe mining. 2 under-ground pressure monitoring projects were designed. The relationship of dynamic load efficient and pace of periodical weighting was re-searched according to monitoring data. It was obtained that dynamic load efficient varied exponentially with periodical weighting pace. It was also been found that working resistance at middle of mining face was larger than that at two-end of mining face from monitoring da-ta. It was believed that main cause of the underground pressure characteristic was difference of damage degree of roof rock by theoretical analysis and numerical simulation. The middle of mining face was classified as danger zone, thus, it was very important that improving setting load of powered support at middle of mining face so as to reduce coal-wall slide probability and protect safe mining.