Mine dewatering techniques SlideShare
#0183;#32;Underground Mine Dewatering Techniques In underground mines, the conventional approach is to allow groundwater to enter the workings, effectively using the mine itself as a drain The water entering the mine is passed along roadways (by pumping or gravity) to a deeper part of the mine (sump) or shaft bottom, to be pumped out via shaft or decline In deeper mines there may be a need