煤矿放水巷高水充填方法研究

Study on High Water Filling Method of Drainage Roadway in Coal Mine

针对某矿3505工作面内废弃放水巷存在的安全隐患,通过对高水充填材料特性的分析可知,高水充填材料固结体早强特征明显,材料体积应变整体变化较小,受压性良好,适合用于空巷充填作业。结果表明,高水充填方法在现场实施后,工作面过空巷前后稳定性良好,未发生明显的片帮现象,可实现3505工作面安全高效开采。

In view of the hidden danger existing in the abandoned water roadway in the 3505 working face of a mine,through the analysis of the characteristics of high water filling materials,it is found that the early strength of the high water filling materials is obvious,the overall volume strain of the materials changes little,and the compressive property is good,the utility model is suitable for the empty roadway filling operation.The results show that the high-water backfilling method has good stability before and after goaf,and no obvious rib spalling phenomenon occurs,which can realize 3505 face safety and efficient mining.