WATER INRUSH CONTROL AND RESUME OF A FLOODED AIR SHAFT

The mine flooding happed during construction of the air shaft in Qidong Coal Mine.The water inrush pass was sealed by grounting into the filled stones and into surrounding rocks behind the shaft wall.The running off was success fully blocked.Obvious benefaction both in society and economy has been obtained.This is a effective way in solving hydrogological problems for shaft construction that are under the same hydrogeological conditions.