Ho-Pile research project

Project title: Ho-Pile – Investigations on the horizontal load-bearing behavior of XL monopiles under cyclic loading

Summary:

In the case of a WTG monopile foundation, its steel mass depends heavily on the geotechnical design. This is essentially based on p-y approaches. Due to a lack of verified knowledge, there are no clear or only inadequate specifications in the regulations. Furthermore, no generally recognized and experimentally validated p-y approaches are yet available for geotechnical MP measurements. This results in project uncertainties and often unnecessary additional steel mass consumption. The Ho-Pile research project validates and extends an existing p-y approach. This requires complex numerical FE calculations and experimental investigations on a scale of 1:5. The project is based on a p-y approach for sand that has been developed in recent years. This approach is experimentally validated by tests in the TTH’s foundation engineering test pit.