ABSTRACT
In past years several full displacement bored piles, also called screwed cast-in-place piles, have been developed in various countries, especially in the Benelux Countries. Prezzi (2005) provides an overview of the conventional well-established systems. Screwed cast-in-place piles are installed into the ground by a combination of torque and vertical feed and displace the soil primarily to the sides. Thus they combine the advantages of driven piles, such as high productivity and good bearing capacity, while simultaneously avoiding environmental problems like noise and vibrations. Further information about the different pile systems can be found in the recommendations of the working committee “piles” (EA-Pfähle 2012).
