西峪煤矿3518工作面顶煤运移规律研究

采用现场实测的方法,针对西峪煤矿的不同地理地质条件和不同的采动条件,研究了在放顶煤开采过程中的顶煤移动、断裂垮落规律;定量描述了顶煤断裂位置、垮落范围、垮落高度和垮落厚度;研究了顶煤垮落特性,确定了顶煤垮落位置和垮落块度对放煤量的影响。

Study on the Movement Laws of the Top Coal on 3518 Working Face in Xiyu Coal Mine

Adopting the site measurement, and in the light of different geological conditions and different mining conditions of Xiyu Coal Mine, this paper studies the laws of the movement, fracture and collapse of the top coal in the course of top coal caving mining, describes quantitatively top coal’s fracture location, collapse scope, collapse height and collapse thickness, researches the features of top coal’s collapse, and determines the influences of top coal’s collapse location and collapse fragmentation on coal yield.