Transitional ocean engineering foundation structure system

Abstract

The invention discloses a transitional ocean engineering foundation structure system. Central point connecting lines of three bucket foundations form a triangle; the top part of each bucket foundation is provided with a pile body; the central line of each pile body and the central line of the bucket foundation which corresponds to the pile body are on the same straight line; a node connecting piece is arranged above the central position of the three bucket foundations; a section steel beam is connected between the node connecting piece and the outer side of the top part of each pile body; each section steel beam tilts down from the end part connected with the node connecting piece to the end part connected with the corresponding pile body; root parts of the pile bodies are connected with each other by inter-pile supports; an integral steel plate is connected among the bucket foundations. According to the transitional ocean engineering foundation structure system disclosed by the invention, bigger bending moment transmitted by an upper structure is effectively and approximately converted into tension and pressure at the bucket foundations by the section steel beams and the pile bodies so as to exert the maximum bearing capacity of the bucket foundations, and materials are saved; moreover, the floating transportation-subsidence-leveling packaged technology can be realized during construction, and therefore, the construction period is short, and the construction cost of an offshore wind plant is reduced.

Description

technical field [0001] The invention relates to the field of basic structures of ports, oceans, water conservancy and bridge engineering, and in particular relates to a basic structure in which multiple tubes are combined to optimize the stress of the tube-shaped foundation. Background technique [0002] At present, in the field of marine engineering such as offshore wind power projects, the foundation structures usually have pile foundations, gravity foundations, jacket foundations, negative pressure foundations and floating platforms, etc. These foundation structures usually require large machines for transportation and installation , resulting in higher construction costs and longer construction periods. Compared with the traditional foundation structure, the cylindrical foundation is widely used in marine engineering due to its low cost, convenient construction, safe and reliable use, and recyclable reuse. [0003] However, the environment of the foundation structure of...

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Problems solved by technology

[0003] However, the environment of the foundation structure of offshore wind power generation is very complex. In addition to the vertical force of the structural weight of the wind turbine tower transmitted from the superstructure, the load also includes the horizontal force and bending moment transmitted from the wind load to the foundation structure, and Waves, ocean currents, sea ice loads, etc.

Large bending moment loads generally lead to a larger diameter of the cylindrical foundation, while the construction of a large-diameter single-cylinder foundation has more restrictions, such as the transportation and installation process requiring large machines and tools, etc.

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