GEWI ® - Piles

System Description


The GEWI ® Pile represents the consistent development towards minimizing the diameter while maintaining a high bearing capacity. It convinces by its simple design. Core of the pile is the GEWI ® with hot-rolled continuous thread deformations on both sides, the coarse GEWI ® Thread. The grout body encasing the steel provides Standard Corrosion Protection, enables the force transfer into the rock or soil and stabilizes against buckling in weak soil layers.

The GEWI ® Pile system is also very suitable to be used as Micro Piles. The GEWI ®-Coupler Splice allows splicing of the GEWI ® Bar at any point and the reconnection of the micro-piles to piles as long as necessary.

The GEWI ® Pile combines a multitude of advantages

  • The small drill hole diameter allows economic drilling methods. Drilling through hard obstacles and bonding rock is easily accomplished.
  • The stress strain curve shows high ductility at high strength required for shear deformations and seismic loads.
  • Compression and tensile loads, also alternating loads, can be transferred into the underground by skin friction along the grout body.
  • Compared to conventional drilled piles, the GEWI ® Pile has a greater elasticity. A combined load transfer by GEWI ® Pile and foundation slab may be chosen when the economic conditions so warrant.
  • Continuing settlements of a structure can be stopped by preloading GEWI ® Piles.
  • The GEWI ® Bar as a centrically located bearing element allows the installation of a Double Corrosion Protection System, unique in the pile technology.
  • The coarse GEWI ® Thread guarantees maximum bond between GEWI ® Bar and cement grout with uniform bearing behavior.
  • The continuous coarse GEWI ®-Thread allows GEWI ® Anchorages and GEWI ® Splices at any given point.