Method for overturning steel pipe pile through fixed arm frame crane ship

Abstract

The invention discloses a method for overturning a steel pipe pile through a fixed arm frame crane ship. The method comprises the following steps of 1, enabling the crane ship and a transport ship to be in place; 2, hanging a hoisting sling; hanging a balance beam on a main hook on the fixed arm crane ship in a balanced mode; 3, hanging a steel pipe pile through hoisting points; connecting steel wire ropes below the balance beam with lifting lugs on the steel pipe pile; and 4, hoisting the steel pipe pile; and enabling the main hook on the fixed-arm crane ship to ascend to gradually lift one end of the steel pipe pile, and then synchronously translating the ship position until the steel pipe pile is lifted to be vertical. According to the construction method, the fixed-arm crane ship is adopted for construction, so that the application shortage situation of a full-rotation crane ship is effectively made up, the use cost is low, and the construction cost input is effectively reduced; and the pile lifting and overturning process is simple and reliable, the construction efficiency is high, and the steel pipe pile is combined with a pile overturning device to keep stable pile overturning, so that the construction danger of slipping is avoided, losses are reduced, and safety is improved.

Description

【Technical field】 [0001] The invention belongs to the technical field of offshore wind power engineering, and in particular relates to a method for overturning a steel pipe pile by a crane with a fixed jib. 【Background technique】 [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 crane ship is used to turn over the pile and erect the pile. Full-slewing cranes are expensive and in short supply, so the cost of use is high and the demand is insufficient....

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 crane ship is used to turn over the pile and erect the pile. Full-slewing cranes are expensive and in short supply, so the cost of use is high and the demand is insufficient. Therefore, there is an urgent need for a construction method that uses fixed-arm cranes for efficient pile turning to make up for the number of full-slewing cranes. Construction under insufficient conditions can not only ensure safety and effectiveness, but also high efficiency

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