Deviation rectifying method for pile top levelness of offshore wind turbine foundation single pile

Abstract

The invention discloses a deviation rectifying method for the pile top levelness of an offshore wind turbine foundation single pile, which comprises the following steps: step 1, carrying out levelness scanning on the top surface of a pile top flange of the single pile on site, finding out the highest point and the lowest point of the pile top flange, and obtaining the maximum height difference value of the top surface of the pile top flange; step 2, calculating the top face levelness of the pile top flange according to the maximum height difference value of the top face of the pile top flange and the pile diameter of the single pile; step 3, drawing a correction scheme schematic diagram of the bottom section tower drum of the fan; step 4, drawing a corrected cutting machining drawing for the machined bottom section tower drum in a tower drum manufacturing plant; step 5, cutting the bottom section tower drum and the drum bottom flange open, then correcting and cutting the bottom section tower drum according to the correction cutting machining drawing, and then connecting the drum bottom flange and the bottom section tower drum in a welded mode again; and step 6, transporting the bottom section tower barrel with the barrel bottom flange welded again to the site, and then connecting the barrel bottom flange with the pile top flange of the single pile. The deviation rectifying method is high in deviation rectifying speed and low in cost.

Description

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AI Technical Summary

Benefits of technology

This patented technology improves upon existing techniques by allowing for faster and more precise corrections on large structures such as wind power generators or bridges that require periodic maintenance due to their weight being supported over time during operation. By performing these modifications at regular intervals, downtime costs can be reduced compared with traditional methods like scanning measurements taken from different locations along the entire length of each part. Additionally, it provides improved connections between parts through an interference fit process instead of just fitting them together tightly. Overall, this new technique makes upgrades to current designs while maintaining high efficiency and reliability.

Problems solved by technology

This patented technical problem addressed in this patent relates to improving the stability and performance of off shore wind generators installed over an island or coastal region where high-strength materials like iron tendons were previously utilized because they had low rigidities compared to other types of structures. To address these issues, new techniques involving ground pier plugs made from strong material called double piles has been developed. These double piled bases offer better support than traditional foundational systems while maintaining consistence across their entire height. However, current solutions require multiple steps before final placement, leading to potential errors caused by unequal levels along different directions.

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