The process of withdrawal of water accumulated in the construction of places in the fall about obtain level water table, especially in the excavation of the rules and spending and places near the sea and rivers
Used to that pumps strong especially
Groundwater control or dewatering is a method used to lower the surrounding groundwater levels and groundwater pressures to enable stable ground conditions for excavating. Methods used are determined upon assessment of the ground conditions, location and depth of the excavation.
Dewatering is an effective solution for dealing with running sand during repairs to sewers and the control of groundwater during basement and tunnel construction.