Failure Mode of Monopile Foundation for Offshore Wind Turbines under Monotonic Loading

Abstract

The monopile foundation is usually subjected to vertical component (V), horizontal component (H) and moment component (M) in the design of offshore wind turbines.The three dimensional finite element numerical analyses were conducted to explore the failure mode of monopile foundation under monotonic loading. The failure modes under monotonic loading were obtained in different components. Soil produces different movement, and overall soil occurs wedge failure on both sides of monopile foundation.

Study on Dynamic Response Characteristics of Circular Extended Foundation of Large Wind Turbine Generator

“…Aiming at the failure characteristics of wind turbine foundation under bending moment load [13][14][15][16], Xu et al [17] studied the dynamic response characteristics of three different forms of offshore wind turbine pile foundations under seismic load and obtained the dynamic response characteristics of different pile foundation types under seismic load. Wang et al [18] analyzed the load characteristics of single pile foundation of wind turbine in soft soil multilayer foundation and obtained the development and failure mode of single pile foundation under different loads. Wu et al [19] studied the horizontal force characteristics of single pile foundation of offshore wind turbine under soft soil conditions and obtained the maximum bending moment of pile body and the maximum pullout force of soil around pile.…”