CAJ | 학술논문

为研究大采高综采工作面末采阶段矿压显现规律及等压技术原理，以察哈素煤矿3101工作面末采阶段开采为背景，采用理论分析和现场实测的方法，确定合理等压措施和末采支护方案。研究结果表明：工作面加速推进可使来压步距和来压持续长度明显增加，而对支架工作载荷、动载系数等来压特征影响较小。现场应用显示：停采等压技术可有效控制来压位置，减小来压步距和来压持续长度；合理留设等压间隔煤柱，可确保挂网和贯通回撤阶段顶板压力显现较为缓和。
위연구대채고종채공작면말채계단광압현현규률급등압기술원리，이찰합소매광3101공작면말채계단개채위배경，채용이론분석화현장실측적방법，학정합리등압조시화말채지호방안。연구결과표명：공작면가속추진가사래압보거화래압지속장도명현증가，이대지가공작재하、동재계수등래압특정영향교소。현장응용현시：정채등압기술가유효공제래압위치，감소래압보거화래압지속장도；합리류설등압간격매주，가학보괘망화관통회철계단정판압력현현교위완화。
In order to study the law of strata behaviors and the theory of yield mining at the ending stage of fully-mechanized face with large mining height, the reasonable yield mining measures and the support scheme for end-mining were determined by taking the mining at the ending stage of No. 3101 working face in Chahasu Mine as background and through the theoretical analysis and site measurement. The research results showed that it could increase the weighting distance and sustain the length significantly by accelerating mining velocity, while the loading distribution and dynamic load coefficient of the powered supports were less affected by the mining velocity change. The side application indicated that It could control weighting position, increase weighting distance and sustain length effectively by using yield mining technology; reasonable coal pillar length for yield mining could make sure a mild roof strata behavior at the stage of hanging nets, cut-through and equipments withdrawal.