大采高工作面支柱支护过空巷技术

Technology of Pillar Support Passing through Empty Roadway in the Working Face with Large Mining Height

为了确保成庄矿5314大采高工作面顺利通过空巷,采用数值模拟对支柱支护过空巷效果进行分析,设计了支柱支护充填方案和充填系统。现场试验表明,空巷最大顶板下沉量469 mm,两帮收缩量最大为313 mm,整体状况良好,工作面顺利通过空巷。

In order to ensure that the 5314 large mining height face of Chengzhuang Coal Mine passes through the empty roadway smoothly,the effect of pillar support passing through empty roadway is analyzed by numerical simulation,the pillar support filling scheme and filling system are designed.The field test shows that the maximum roof subsidence of the empty roadway is 469 mm,and the maximum shrinkage of the two sides is 313 mm.The overall condition is good,and the working face passes through the empty roadway smoothly.