摘要
为了研究石港煤矿综放面采动引起的岩层移动规律,以石港煤矿15101综放工作面为例,采用矿用数字压力计分机、矿用压力数据采集器监测支架工作状况,推断厚煤层综放开采覆岩运动和压力显现特征,结果表明:15101综放工作面基本顶初次垮落步距平均为31.8 m时,呈上部大下部小的趋势,周期来压步距平均为8.0 m,动载系数平均为1.73,具有明显的规律,为顶板来压期间瓦斯治理提供重要的依据。
In order to study the mining strata movement rule caused by mining of caving mining face in Shigang Coal Mine,with 15101fully- mechanized working face in Shigang Coal Mine as an example,using mine digital pressure gauge extension,mine pressure data acquisition and monitoring support working condition,inference of thick coal seam mining strata movement and stress characteristics,the results showed that 15101 fully- mechanized caving roof caving step away from an average of 31. 8 m for the first time,the upper large lower the trend of small,periodic weighting step away from an average of 8. 0 m,average dynamic load coefficient is 1. 73,it has obvious regularity,and provided important basis for roof pressure during gas control.
出处
《煤》
2015年第3期1-3,38,共4页
Coal
基金
河南省瓦斯地质与瓦斯治理重点实验室-省部共建国家重点实验室培育基地基金项目(WS2013A10)
关键词
厚煤层
综放开采
矿压显现
初次来压
周期来压
thick coal seam
full-mechanized caving mining
mine pressure appear
the first time to pressure
periodic weighting
