What is dewatering?
Dewatering is a term to describe the removal of groundwater or surface water from for example a construction site. In construction the water is pumped from wells or sumps to temporarily lower the groundwater levels, to allow excavation in dry and stable conditions below natural groundwater level. Dewatering in mines and tunnels aims at controlling and managing surface water and groundwater to allow mining in relatively dry conditions improving geotechnical stability and the overall efficiency of mining methods.
There is a variety of pumps used for it: submersible pumps, self-priming pumps, borehole pumps etc. but the pump choice always depends on the job conditions.
Ensuring a safe work site
If you work on a construction site or in a mine, you know how important it is with a dry worksite to keep production running and for guaranteeing the safety of your team. Dewatering of the workplace prior to any construction work reduces the risk of accidents and could also improve the working environment.
Methods and applications
There are many dewatering methods to get the dry worksite you need for your construction- or mining projects. The major methods are sump pumping, wellpoints, deep-wells, bypass and flood control. These techniques are applicable for dewatering applications on construction sites and in mining and tunneling.