Effect of Reinforced Bucket on Bearing Capacity and Natural Frequency of Offshore Wind Turbines Using Pile–Bucket Foundation

<table class="table-group" id="tab10"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Type of foundation</td><td class="align_center">The monopile foundation, <i>d</i> = 4 m</td><td class="align_center">The monopile foundation, <i>d</i> = 5 m</td><td class="align_center">The monopile foundation, <i>d</i> = 6 m</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">The predicted value by the FEM-analysis combined method (Hz)</td><td class="align_center">0.359</td><td class="align_center">0.394</td><td class="align_center">0.415</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The fundamental frequencies for different monopile foundations solving by the FEM-analysis combined method.</div>

Advances in Civil Engineering

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Table 10

Table 10: Effect of Reinforced Bucket on Bearing Capacity and Natural Frequency of Offshore Wind Turbines Using Pile–Bucket Foundation 