岩层及地表移动与冲击地压相关性研究

对岩层及地表移动规律的观测、室内试验和数值计算分析表明，采动覆岩层沉陷运动的不协调性造成裂隙带上部弯曲带岩体中产生大范围的离层空隙。随着工作面的推采，离层空隙周期性悬露垮断构成了上覆岩层及地表移动变形运动的不同特征。根据现场观测，砾岩层运动是矿井冲击地压发生的主要力源，地表下沉速度发生剧烈变化，冲击地压发生的频率较高，地表产生反弹时更为危险，且随着砾岩层的运动，冲击地压发生周期性变化。

Correlation between rock burst and movement of strata and ground surface

Based on the indoor test and numerical calculation of movement of ground surface and strata, large-scale bed separation in bending strip upside cranny strip is brought by un-consistency of overlying strata subsidence movement due to underground mining and different characteristics of displacement and deformation of overlying strata and ground include periodic caving of bed separation inter-space along with work face mining. Conglomerate layer movement is the main power fountain of rock burst on the basis of local observation that ground surface subsidence change strenuously with high frequency rock burst and more dangerous as ground surface rebounding. And rock burst moves periodically adapt to movement of deep conglomerate layer.