东曲矿预留钻孔疏放28206工作面老空积水技术研究  

Research on drainage water accumulation in old goaf technology of reserved drilling holes in No.28206 Face of Dongqu Mine

作　　者：路鹏飞 Lu Pengfei(Xishan Coal and Electricity Group Dongqu Coal Mine,Taiyuan 030000,China)

机构地区：[1]西山煤电集团公司东曲煤矿,山西太原030000

出　　处：《煤炭与化工》2024年第9期65-68,共4页Coal and Chemical Industry

摘　　要：近距离煤层群开采时,上部煤层开采后形成的采空区积水是威胁下部煤层安全开采的主要因素之一。针对传统采空区积水的防治方法存在一定盲目性,导致工程量通常较大的情况,本文根据东曲矿28206工作面和29206工作面是近距离煤层开采的具体情况,提出在28206工作面开采时预留疏水钻孔,对工作面低洼区域采空区积水进行监测和有序疏放,最终保证了下部29206工作面的安全开采,为类似近距离煤层群防治采空区积水提供了经验借鉴。During the mining of close distance coal seams,the water accumulation in the goaf formed after the mining of the upper coal seam was one of the main factors that threatened the safe mining of the lower coal seam.In view of the blindness of the traditional prevention and control methods of water accumulation in goaf,the amount of work was usually large.According to the specific situation that No.28206 Face and No.29206 Face of Dongqu Mine were close-distance coal seam mining,this paper proposed to reserve drainage drilling holes during the mining of No.28206 Face,monitor and orderly drain the water in the goaf of the low-lying area of the working face.And finally the safe mining of the lower No.29206 Face was ensured,which provided experience for the prevention and control of water accumulation in goaf of similar close-distance coal seam groups.

关 键 词：煤层顶板 采空区积水 疏水钻孔 防治水 

分 类 号：TD74[矿业工程—矿井通风与安全]