A tension leg platform foundation structure and method of installing the same

Abstract

The present application relates to a kind of tension leg foundation structures, including upper platform, lower platform and connecting column, upper platform and lower platform are all from the center part to the outside side ring outwardly spaced apart three more than outer end, the top center of upper platform is vertically connected with the bottom of fan tower, the top end of connecting column is vertically connected with the bottom center of upper platform, bottom end is vertically connected with the top center of lower platform, and in the orthographic projection of lower platform plane, any outer end orthographic projection of upper platform is located between the orthographic projection of adjacent two outer ends of lower platform, lower platform is completely immersed in sea, and multiple ballast water tanks are arranged in lower platform, and each ballast water tank is filled with ballast water, upper platform is located above sea level and is provided with tension tendon at the tail position of each outer end of bottom portion respectively, and each bundle of tension tendon is connected with foundation portion fixed in seabed in taut state.This tension leg foundation structure uses small amount of steel, and stability can be guaranteed.

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