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Tubular screw piles

Auger-type tubular screw piles are cast in-situ without causing vibrations and noise.They can serve as separate foundation elements, but can also be installed overlapping and thus forming a watertight wall for a building pit.. Pile diameters vary between 450 and 700 mm. Pile loads up to 3000 kN are possible, depending on the soilconditions.  An auger, a tube with a continuous helical screw blade on the outside, is screwed into the soil using a rotatary drill. The diameter of the hollow tube is significantly larger than with CFA-type piles, allowing reinforcement by rebar or H-beams along the length of these piles. Once the desired depth has been reached, the reinforcement is inserted into the core of the auger. The auger is then withdrawn and the hole simultaneously filled with concrete. The concrete is poured under slight positive pressure to guarantee a proper construction of the pile shaft. The shaft is ready when the auger has been fully withdrawn.


Tubular screw piles are used as pile foundation in locations where vibration should be avoided. As a result of the relatively large tube, this is a partial displacement pile, with less excavated material than auger-type screw piles.
The product is specifically suitable as a foundation element in locations where prefab driven piles cannot be used due to ambient factors and soil structure.

Ambient factors

  • Can be used in locations that are difficult to reach. (No supply of long piles.).
  • Vibration-free and low-noise.

Pros and Cons

  • The system produces little noise and vibrations and is capable of absorbing tensile as well as compressive loads.
  • Drilling piles can be started quickly.
  • No time lost ordering and producing precast piles.
  • Because they are partial displacement piles, less soil is produced and the deformation behaviour is more favourable than with auger-type screw piles.



Name of project


Veenendaal, Parking garage De Tricotage

Welling Didam

Roosendaal, Fundation powerline Tennet

Tennet TSO