Deep sea wind power generation jacket type single pile composite structure and construction method thereof

Abstract

The invention relates to a deep sea wind power generation jacket type single pile composite structure and a construction method thereof. According to the technical scheme, the deep sea wind power generation jacket type single pile composite structure is characterized by comprising a large-diameter steel pipe, a transition section, a jacket main body structure and a steel pipe pile, wherein the upper end of the large-diameter steel pipe is located above the crest elevation of the wave action range of a single-pile composite structure service engineering field, and the lower end of the large-diameter steel pipe is located below the bottom elevation of the wave action range; the lower end of the large-diameter steel pipe is connected with the jacket main body structure below the large-diameter steel pipe through the transition section, the lower end of the jacket main body structure is connected with a plurality of steel sleeves, the jacket main body structure is sleeved on the steel pipepile through the steel sleeves, the steel pipe pile is sunk and fixed on a seabed, and high-strength grouting materials are poured between the steel sleeves and the steel pipe pile for connection. The deep sea wind power generation jacket type single pile composite structure is suitable for the offshore wind power generation industry, and particularly suitable for serving as a foundation structure of an engineering field with the water depth exceeding 30 meters.

Description

technical field [0001] The invention relates to a jacket type single pile composite structure for deep sea wind power generation and a construction method thereof. It is suitable for the offshore wind power generation industry, especially the infrastructure serving in engineering sites with a water depth of more than 30 meters. Background technique [0002] In the context of the increasingly severe situation of traditional fossil energy, countries around the world have turned their attention to wind energy, a clean energy source, among which offshore wind energy is particularly important. China's grid-connected offshore wind power capacity ranks third in the world after Britain and Germany. The development of offshore wind energy resources has gradually entered offshore wind farms and deep sea wind farms from intertidal zone and subtidal tidal flat wind farms. In the process of offshore and deep-sea wind energy utilization, the jacket foundation structure is widely used be...

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Problems solved by technology

At the same time, the traditional jacket foundation structure is subjected to large wave loads, resulting in a corresponding increase in the lateral and vertical bearing capacity of the pile foundation, which directly makes the pile diameter and wall thickness of the traditional jacket foundation structure larger , the pile length is longer

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