复杂不稳定煤岩综放开采不规则来压顶板垮断机理研究

Research on caving mechanism of roof with irregular rock pressure during fully-mechanized caving mining of complex unstable coal rock

复杂不稳定煤岩开采,由于涉及因素复杂,无法建立统一模型,现场实测数据分散,来压规律不易总结,需顶板垮断机理解释和指导。以同发东周窑矿复杂不稳定煤岩综放开采实测不规则矿压规律为切入点,通过理论分析,提出了该矿复杂不稳定煤岩综放开采顶板的 8 种典型垮断机理,从理论上解释了该区特殊矿压规律,对复杂不稳定煤岩顶板垮断机理进行了探索,可为类似矿井提供借鉴。

For the mining of complex unstable coal rock,due to various complicated factors,unified model cannot be established,meanwhile,the actual on-site monitoring data scatters and the pressure laws is not easily concluded,therefore the roof caving mechanism needs to offer explanation and guidance.In the paper,the actual monitoring irregular rock pressure during fully-mechanized caving mining of complex unstable coal rock in Tongfa Dongzhouyao Mine being taken as the start,after theoretical analysis,eight kinds of typical roof caving mechanism during fully-mechanized caving mining of complex unstable coal rock in the mine were proposed.And then,special rock pressure laws in the mine were explained theoretically,and the complex unstable coal rock roof caving mechanism was explored,which could offer reference for similar mines.