多层含水层工作面预注浆技术在漳村煤矿西部扩区回风立井中的应用

摘要

Air return vertical shaft in the West expanding area of Zhangcun Coal Mine of Lu ’an Group.Vertical shaft collar passes through 7 sandstone aquifers ,1 ,2 ,3 aquifer among them is in the wellbore 84.6~116.78m ,w hich has rich hydraulic conductivity.It is in a complicated geological condition with a large total water volume.%潞安集团漳村煤矿西部扩区回风立井工程，根据地质资料显示共需要穿过砂岩含水层7层，其中1、2、3号含水层为井筒84.6～116.78 m段。导水性能较为丰富，为岩石裂隙发育含水。水文地质条件复杂，涌水量较大。