中能煤业基于大数据的综放面矿压显现分析

Analysis of Mine Pressure Behavior at Fully-mechanized Caving Face Based on Big Data in Zhongneng Coal Industry

以中能煤业2303综放工作面为工程背景,通过归集综放工作面大量矿压数据,对该工作面顶板周期来压步距、工作面支架初撑力、工作面区域支架循环末阻力、支架动载系数等力学参数分析后,得出来压步距平均为18.4 m、周期来压步距均方差为3.5~17.5 m、动载系数均值为1.3、中部8区支架动载系数均值达到1.4,据此判定该工作面矿压显现为来压明显;通过掌握综放工作面的矿压显现特征,为该矿安全开采提供了强有力的技术支撑。

By collecting a large amount of rock pressure data from 2303 fully mechanized caving face of Zhongneng Coal Industry,the mechanical parameters such as the periodic pressure step distance of the roof,the initial support force of the working face support,the end cycle resistance of the working face support,and the dynamic load coefficient of the support are analyzed in the paper.The average pressure step distance is 18.4 m,the mean square deviation of the periodic pressure step distance is 3.5~17.5 m,and the average dynamic load coefficient is 1.3 The average dynamic load coefficient of the support in Zone 8 of the central region reaches 1.4,and based on this,it is determined that the mining pressure of this working face appears to be obvious under pressure,which provides strong technical support for the safe mining of the mine.