10-1002工作面顶板离层水防治技术实践

Practice of Prevention and Control Technology for Separated Strata Seeper in Roof of 10-1002 Face

为保障10-1002工作面回采期间安全,通过判断离层水形成的必要条件,得出顶板L1灰岩与下方岩层间存在离层水,结合离层水防治原则,确定采用打设离层水导流孔和含水层截流孔的方式治理离层水,并在钻孔疏水过程中进行参数记录。结果表明:工作面采用离层导流孔和含水层截流孔的疏水方式,回采期间无顶板涌水现象出现,有效解决了顶板离层水害问题,为工作面安全生产提供了保障。

Based on the necessary conditions for the formation of separated strata seeper,it is concluded that there is delaminated water between the top L1 limestone and the rock layer below.To ensure the safety mining of 10-1002 working face,combining with the principle of prevention and control of delaminated water,it is determined to use separation water deflector holes and aquifer closure holes to control the separated strata seeper,and record the parameters during the drilling process.Results show that this hydrophobic method effectively solves the problem of roof separation.