突出煤层沿空采动卸压带影响范围确定  

Determination of Influence Tange of Gob-side Mining Pressure Relief Zone in Outburst Coal Seam

作　　者：王振刚[1] WANG Zhengang(Anyang Dazhong Coal Industry Co.,Ltd.)

机构地区：[1]安阳大众煤业有限责任公司

出　　处：《现代矿业》2023年第6期286-288,共3页Modern Mining

摘　　要：为保证施工期间安全,大众煤矿通过采动卸压所形成的保护范围掩护采掘作业。为进一步掌握煤层沿空采动卸压带影响范围,通过煤层瓦斯含量测定以及钻屑指标法对实际效果进行检验,以确定煤层沿空采动影响范围。由残余瓦斯含量分布规律可知,试验区采空区侧向实体煤侧6~43 m范围煤层卸压排放有效,但考虑到侧向工作面钻屑解吸指标在钻孔深度达到28 m时明显增大,故确定煤柱工作面沿空采动卸压带影响范围为28 m。In order to ensure the safety during construction,the protection range formed by mining pressure relief in Dazhong Coal Mine covers the mining operation.In order to further grasp the influence range of gob-side mining pressure relief zone in coal seam,the actual effect is tested by coal seam gas content determination and drilling cuttings index method to determine the influence range of gob-side mining in coal seam.According to the distribution law of residual gas content,it can be seen that the pressure relief discharge of coal seam in the range of 6~43 m on the side of solid coal in the goaf of the test area is effective.However,considering that the desorption index of drilling cuttings in the lateral working face increases obviously when the drilling depth reaches 28 m,it is determined that the influence range of the pressure relief zone along the goaf of the coal pillar working face is 28 m.

关 键 词：沿空采动 卸压带 消突 

分 类 号：TD713[矿业工程—矿井通风与安全]