Shared construction platform for single pile and high pile cap foundation steel pipe pile planting of offshore wind power plant

Abstract

The invention discloses a shared construction platform for single pile and high pile cap foundation steel pipe pile planting of an offshore wind power plant. The construction platform comprises a toplayer platform, a middle layer platform and a lower layer platform which are arranged on six auxiliary pile sleeves, and the six auxiliary pile sleeves are arranged in a regular hexagonal manner by connecting lines; the top layer platform comprises a top ring beam and two pairs of cantilever beams; the top ring beam is connected with the six auxiliary pile sleeves through six radial main beams, and the periphery of the top ring beam is provided with an inner channel main beam, a middle channel main beam and a top outer channel main beam which are all in a regular hexagon shape; the two pairs of cantilever beams are connected with the six auxiliary pile sleeves, so that the plane outer contour of the top layer platform is in a rectangular shape; the middle layer platform and the lower layerplatform are the same in structure and size, and each platform comprises a ring beam and an outer channel main beam which is in a regular hexagon shape and is connected to the six auxiliary pile sleeves; the ring beam is connected with the six auxiliary pile sleeves through six connecting beams; and the top layer platform, the middle layer platform and the lower layer platform are each provided with a single pile guiding protective cylinder and a high pile guiding truss. According to the invention, the construction platform not only can improve the verticality of the protective cylinder, butalso can reduce resource investment.

Description

technical field [0001] The invention relates to a common construction platform for planting steel pipe piles of offshore wind power single piles and high pile cap foundations. Background technique [0002] At present, there are two development trends in the construction of offshore wind farms: one is that the construction water depth develops from intertidal zone to shallow sea; the other is that the single-unit capacity of wind turbines continues to increase and the units gradually become larger. This is bound to put forward new requirements for the cap foundation of offshore wind turbines. The Pinghai Bay Wind Farm, located in the southeast of Xiuyu District, Putian City, Fujian Province, originally had 85 wind turbines. Due to the uneven water depth distribution in the construction area, there are 6 implanted high pile cap foundations and 6 implanted single piles. Cap foundation: The general geological overburden in the form of implanted pile cap foundation is relatively...

AI Technical Summary

Problems solved by technology

The Pinghai Bay Wind Farm, located in the southeast of Xiuyu District, Putian City, Fujian Province, originally had 85 wind turbines. Due to the uneven water depth distribution in the construction area, there are 6 implanted high pile cap foundations and 6 implanted single piles. Cap foundation: The general geological overburden in the form of implanted pile cap foundation is relatively shallow. If the traditional structure of steel pipe pile rock-socketed construction platform is used, the self-stability of the auxiliary piles is difficult to meet

And because the same wind field includes single-pile cap foundation and high-pile cap foundation, if a rock-socketed construction platform with traditional structure is erected separately, more resources need to be invested, steel materials are wasted, and resources cannot be fully utilized

The current rock-socketed construction platform is a two-story structure. During rock-socketed construction, the verticality of the casing cannot be guaranteed. If the verticality of the casing exceeds the requirements, it will have a great impact on the subsequent rock-socketed construction, so it cannot meet the construction requirements.

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