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Home > Archive>Volume 50, Issue 4, 2022 >537-544. DOI:10.11908/j.issn.0253-374x.21223
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Progressive Failure Mechanism of the Wide - Shallow Suction Bucket Foundation for Offshore Wind Turbines
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1.School of Civil and Transportation Engineering， Hebei University of Technology， Tianjin 300072， China;2.School of Civil Engineering， Tianjin University， Tianjin 300072， China

Clc Number:

TU;475+.1

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    Abstract:

    The suction bucket foundation of wind power is subjected to horizontal loads from wind， waves， ocean currents， earthquakes， and ship docking in service conditions， leading to failure modes of translation and rotation. The accumulated ground deformation results in severe structural instability and damages. The suction bucket foundation demonstrates a shallow embedded depth， and the soil-structure interactions are different from the traditional shallow foundations. Therefore， the failure mode of the wide-shallow foundation is not clearly investigated. A series of centrifuge tests are conducted to study the ultimate lateral bearing behavior of the wide-shallow suction bucket foundation with variable L/D ratios in sandy soil. The progressive failure mechanisms of the suction bucket foundation are further illustrated through Abaqus numerical simulations. The evolution of the rotation center is depicted. An analytical calculation method is proposed by considering the rotation center， aiming to provide design references for practical engineering.

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WANG Xuefei, LI Deming, LE Conghuan, LI Jiale. Progressive Failure Mechanism of the Wide - Shallow Suction Bucket Foundation for Offshore Wind Turbines[J].同济大学学报(自然科学版),2022,50(4):537~544

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  • Received:May 22,2021
  • Online: May 06,2022
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