BEARING CAPACITY CHARACTERISTICS OF FOUR-BUCKET FOUNDATION IN OFFSHORE WIND TURBINES UNDER COMBINED LOADING CONDITIONS
To investigate the failure modes of four-bucket foundation under V-H(rertical-horizontal load),V-M(vertical-moment lood),H-M(horizontal-moment load)and V-H-M(vertical-horizontal-moment load),an overall model of four-bucket foundation with layered soil ground was established by means of ABAQUS based on a practical offshore wind project in Fujian,China.It shows that in V-H loading and H-M loading conditions,the vertical bearing capacity decreases as the horizontal load increases and the moment bearing capacity decreases proportionally with the increasing horizontal load.The motion pattern of four-bucket foundation changes from rotation to translation with the increase of vertical load under V-M combined loading condition.In V-H-M loading condition,the bearing capacity failure envelope will expand when the vertical load increases.The vertical load can obviously enhance the horizontal and moment bearing capacity of four bucket foundation.
offshore wind powerfour-bucket foundationcombined loadbearing capacity of foundationfailure envelope
NETL
NSTL
万方数据
维普
