SUBSTRUCTURE OF OFFSHORE WIND TURBINE HAVING MULTI-CYLINDERS OF VARIOUS DIAMETERS, AND CONSTRUCTING METHOD THEREOF

摘要

A substructure of an offshore wind turbine having multi-cylinders of various diameters and a constructing method thereof are provided to effectively reduce the wave power working on the substructure through an interaction between the substructure of an offshore wind turbine and waves by establishing a central pile and a number of surrounding piles near the surface of the sea, to increase the hardness and safety of the substructure by increasing the number of central pile and surrounding piles, to make the method of establishment and construction very simple by establishing a gravity-type circular cylinder substructure first and then establishing a central pile and surrounding piles in the form of the conventional mono-pile, to reduce construction costs on the sea since establishment on the sea without large equipment is possible, to reduce working hours by establishing a gravity-type circular cylinder substructure first on the sea bottom and letting it serve as an establishment guide for central pile and surrounding piles, to enhance the accuracy of position control, and to easily prevent bending of piles in case of pile driving.;COPYRIGHT KIPO 2015