Method for pile turning of large-diameter single pile through full-rotation crane ship

Abstract

The invention discloses a method for pile turning of a large-diameter single pile through a full-rotation crane ship. The method comprises the following steps that S1, ship positioning is conducted, specifically, the crane ship and a transport ship travel to a wind field machine position to be anchored and positioned, and the positions are kept relatively stable; S2, an appropriate sling, an appropriate main lifting rope and an appropriate auxiliary lifting rope are selected, a bearing beam and a limiting stopper are welded on the transport ship in advance, and the single pile can be fixedly placed conveniently; S3, the sling is parallelly hung on a main hook through the main lifting rope, an auxiliary rope is hung on an auxiliary hook, one end of the auxiliary lifting rope is hung on the main hook, the main lifting rope is connected with lifting lugs on the two sides of the single pile, and a tail slipping hook fixed to the other end of the single pile is arranged at the other end of the auxiliary lifting rope; and S4, the single pile is hoisted by the main hook, after the single pile leaves the transport ship, the transport ship is driven away from the crane ship, after the single pile is hoisted until the tail slipping hook is unhooked, the single pile continues to be hoisted to be vertical, and pile turning is completed. The main lifting rope and the auxiliary lifting rope on the crane ship enable the single pile to be more stable under the cooperation of a lifting pile, operation safety is improved, the whole construction process is simple and reliable, and construction efficiency is high.

Description

[Technical field] [0001] The present invention belongs to the field of sea wind power engineering technology, which relates to a method of full-swinging a large diameter single pile of full swing. 【Background technique】 [0002] The wind in the ocean quickly, fully utilized marine wind resources to achieve a part of electric energy for the city, mitigate the power supply pressure of the city, the complexity of wind power projects on the ocean and the difficulty, the basis of single pile is the most common structure First, the structure is simple, the technology is mature, and the construction of single pile foundation is shipped by the transportation ship to the construction site. After the heavy ship is turned over, due to the size of the single pile, the quality is large, with the current technology in the sea hanging pile, There is a large technical difficulty in the pile, and the work efficiency is also low. [Summary] [0003] In order to solve the existing problems present ...

AI Technical Summary

Problems solved by technology

[0002] The wind power on the ocean is fast, making full use of ocean wind resources to generate electricity can provide a part of the city’s electrical energy and relieve the city’s power supply pressure. The construction of wind power projects on the ocean is complicated and difficult. The single pile foundation is one of the most common structures for offshore wind turbine foundations. First, the structure is simple and the technology is relatively mature. After the construction of the single pile foundation is transported to the construction site by the transport ship, the pile is turned over by the crane ship. Due to the large size and high quality of the single pile, the current technology can be used to hang piles at sea, Turning piles has great technical difficulty and low work efficiency

Images