Floating transportation construction method of large-diameter single pile

Abstract

The invention discloses a floating transportation construction method of a large-diameter single pile. According to the main technological process of the method, after single pile prefabrication is finished on a wharf, the pile point and the pile top of the single pile are plugged through a plugging device; the single pile enters water, then a tug is adopted for towing the single pile to the corresponding construction position of an offshore wind plant in a floating transportation manner, and the single pile is moored to be tied by a floating crane; then a single floating crane is adopted forsingle pile lifting by means of floating force; and finally the single pile is sunk. According to the floating transportation construction method of the large-diameter single pile, the input of a self-elevation wind power ship or large transportation barge and lifting equipment is reduced, and construction cost is reduced; and the method is suitable for base wharfs with various transportation conditions, and the problem of single pile transportation of areas lack of proper transportation bases and shallow ends is solved; and the construction requirement of the large-diameter single pile can bemet, and the construction process is innovated.

Description

technical field [0001] The invention relates to the field of marine transportation, in particular to a large-diameter single pile floating construction method. Background technique [0002] With the rapid development of offshore wind power in recent years, monopile foundation is the most widely used foundation form at present. With the increase of wind turbines, the diameter and weight of monopile foundation are getting larger and larger. The transportation of the single pile foundation from the wharf to the corresponding offshore installation position and erection is an important link in the construction process of the single pile foundation. At present, there are two common modes of transportation for offshore wind power monopile foundations: one such as Figure 1a As shown, the monopile 1-1 foundation is hoisted on the transport barge 1-2 at the wharf, and then the self-propelled barge or the barge is towed to the site by a tugboat; another such as Figure 1b As shown, t...

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Problems solved by technology

[0008] Aiming at the problems of high equipment, high cost investment, high requirements on the conditions of the shipping wharf, and difficulty in meeting the construction requirements for large-diameter single-pile transportation and erection in the existing single-pile transportation and righting construction technology, the present invention provides a large-diameter The single-pile floating construction method can reduce the investment in large-scale transport barges or jack-up wind power installation ships and lifting equipment, and reduce construction costs; it is suitable for base wharfs with various shipping conditions, and solves the problem of lack of suitable shipping base areas And the problem of single pile transportation in shallow water areas; it can also meet the construction requirements of large-diameter single piles, and innovate the construction technology

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