GEWI piles are foundation elements with a grout diameter of 120-250 mm that transfer both tensile and compressive forces into the subsoil. The pile consists of a steel rod with a coarse, helical thread along its entire length surrounded by a cylindrical grout body. The GEWI rod is inserted into a pipe sleeve that is installed in the soil by means of drilling, driving or vibrating. Afterwards, the space between the pipe sleeve and the rod is filled with grout. The pipe sleeve is then gradually withdrawn, while pumping grout in the pipe sleeve under pressure to improve the capacity. The rods can have diameters of 16, 20, 25, 28, 32, 40, 50, 63.5 and 75 mm. Single or double corrosion protection can be applied for permanent applications.
GEWI piles are used as vertical anchors for underwater concrete floors in combination with the floor of the structure and as tension piles/bearing piles in confined spaces. Suitable for repairing foundations (small drill diameter).
Name of project |
Client |
Amsterdam, Construction pit parking Boerenwetering |
Max Bögl Amsterdam |
Tiel, Construction pit Community Centre Westluidense Poort |
Van Hattum en Blankevoort Regio Zuid |
Venlo, Construction pit Stadskantoor |
Ballast Nedam Funderingstechnieken |
Den Haag, Building pit extension Mauritshuis |
Stichting Koninklijk Kabinet van Schilderijen Mauritshuis |
Empel, Rearrangement river Zuid-Willemsvaart |
Construction consortium Willemsunie |
Heerlen, Storage/settling basin Nieuw Eyckholt |
Janssen de Jong Infra Construct |
Bussum, Construction pit Landstraat Noord |
Ufkes Apeldoorn |
Eemshaven, Construction pit RWE power plant |
Visser & Smit Bouw bv Regio Noord / Mainka vof |