Assessing single-helix screw pile geometry on offshore installation and axial capacity

Due to their low-noise installation and relatively large axial capacity, screw piles have been proposed as an alternative foundation solution in dense sand for offshore renewable energy applications deeper water. For this occur, significant upscaling of onshore dimensions is required. Furthermore, the effects certain geometric features on requirements are still not well understood. In work, using three-dimensional discrete-element method, base geometry, shaft diameter helix pitch were investigated by simulating full process prior conducting compression tension tests. The results investigation showed it possible optimise geometry pile reduce requirements, terms both vertical force (up 61%) torque 39%), without reducing capacity significantly.