Offshore wind power implantation type single-pile foundation and construction method thereof

Abstract

The invention relates to the technical field of offshore wind power equipment, in particular to an offshore wind power implantation type single-pile foundation and a construction method thereof. The single-pile foundation comprises a straight-section single pile, a variable-diameter-section single pile and a reducing-diameter-section single pile which are connected sequentially from top to bottomthrough welding along the same central axis; the straight-section single pile and the reducing-diameter-section single pile are cylindrical; the variable-diameter-section single pile is shaped like abig-end-up circular truncated cone; the outside of the reducing-diameter-section single pile is sleeved with a cylindrical reinforcement cage; the reinforcement cage is welded to the outer wall of thereducing-diameter-section single pile; annular pouring space for pouring concrete is formed between the reinforcement cage and the outer wall of the reducing-diameter-section single pile; and concrete mass sensors are mounted inside the pouring space. According to the foundation, the outer wall of the reducing-diameter-section single pile in small diameter is sleeved with the annular reinforcement cage, the concrete is poured into the annular space of the reinforcement cage, the concrete mass sensors are arranged inside the pouring space, the pouring quality is monitored through data transmission by the aid of the sensors, and thus the rigidity and the horizontal bearing performance of the single-pile foundation are enhanced.

Description

technical field [0001] The invention relates to the technical field of offshore wind power equipment, in particular to an offshore wind power implanted single pile foundation and a construction method thereof. Background technique [0002] At present, offshore wind power has become a research hotspot in the development of global wind power. All countries in the world regard offshore wind power as an important direction for the development of renewable energy, and my country has also included it as an important part of strategic emerging industries. my country is rich in offshore wind energy resources. According to the results of the national census, the development potential of offshore wind power at a water depth of 5 to 25 meters and a height of 50 meters in my country is about 200 million kilowatts; Broad prospects. [0003] The structural types of wind turbine foundations in offshore wind farms can be divided into gravity foundations, single pile foundations, multi-colum...

AI Technical Summary

Problems solved by technology

Therefore, the quality of grouting construction is particularly important, and its quality directly affects the horizontal bearing capacity of the pile. However, the current grouting construction technology has problems such as uneven thickness of the grout wall, difficulty in ensuring construction quality, high-strength concrete as the grouting material, and high construction costs.

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