The recycling torque of a single-plate helical pile for offshore wind turbines in dense sand
AuthorDing, H; Wang, L; Zhang, P; Liang, Y; Tian, Y; Qi, X
Source TitleApplied Sciences (Switzerland)
PublisherMolecular Diversity Preservation International (MDPI) AG
University of Melbourne Author/sTian, Yinghui
AffiliationElectrical, Mechanical and Infrastructure Engineering
Document TypeJournal Article
CitationsDing, H; Wang, L; Zhang, P; Liang, Y; Tian, Y; Qi, X, The recycling torque of a single-plate helical pile for offshore wind turbines in dense sand, Applied Sciences (Switzerland), 2019, 9 (19)
Access StatusOpen Access
The helical piles have been being treated as a kind of novel foundation for offshore wind turbines recently, due their fast installation, high uplift capacity, convenience for recycling, and other advantages. The recycling of the helical pile especially will reduce the cost significantly and protect the environment as much as possible. However, the research for this area is basically in infancy and there is no reference for predicting the recycling torque of a helical pile in sand. In order to predict the recycling torque of single-plate helical piles in dense sand: a theoretical model, which was inspired by the way to predict the installation torque of single-plate helical pile in sand, was developed, and a series of single gravity model tests were conducted to verify that theoretical model. The theoretical model can predict the recycling torque of single-plate helical pile considering the influences of the size of helix and the vertical force on the shaft. This model fills in the blank of predicting the recycling torque of a single-plate helical pile in sand and it is also useful guidance for the choice of suitable recycling equipment.
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