digging and boring - works Belgium

All earthworks and demolition works.

... depths of 250 m with drilling diameters ranging from 90 mm to 300 mm. For unstable terrains, a system allows us to place steel casings that are pulled into the ground to support the drilling. The casing of the water intake well is done throughout the entire depth, and the cased intake section is screened to allow water passage. Between the drilling and the casing, calibrated silica gravel is placed, followed by swelling clay and cementing up to the surface.