Steel protective cylinder guiding and installing method and pile foundation construction platform and floating crane ship

Abstract

The invention relates to a steel protective cylinder guiding and installing method and a pile foundation construction platform and a floating crane ship. When a steel protective cylinder is lifted andconveyed to a corresponding fixed positioning rack by the floating crane ship, the steel protective cylinder in a vertical hoisting posture is transversely fed into a fixed fork-shaped head by the floating crane ship, the fixed fork-shaped head and a movable fork-shaped head which are staggered in the up-and-down direction cooperate to form a constraint on the radial direction of the steel protective cylinder, thus the steel protective cylinder is constrained and positioned at the preset steel protective cylinder installation position, the steel protective cylinder is guided into the riverbedby the fixed fork-shaped head and the movable fork-shaped head, and the guide installation of the steel protective cylinder is realized. According to the steel protective cylinder guiding and installing method, radial constraint is achieved through mutual cooperation of the fixed fork-shaped head and the movable fork-shaped head, the end part of the fixed fork-shaped head is open, so that the steel protective cylinder is convenient to transversely enter, the steel protective cylinder does not need to be lowered from the high position, the safety performance is improved, the installation difficulty is reduced, the end part of the movable fork-shaped head is open so that the steel protective cylinder can be conveniently withdrawn from the movable fork-shaped head, and the assembly efficiency is improved.

Description

technical field [0001] The invention relates to a guide installation method for a steel casing, a pile foundation construction platform, and a floating crane. Background technique [0002] In the construction of long-span bridges, the method of bored pile foundation is widely used. Building a pile foundation construction platform is a prerequisite for pile foundation construction in water. It provides a water site for construction personnel, equipment operations, and stacking of machine tools and materials. [0003] During the construction of the construction platform, it is necessary to build steel pipe piles, steel casings, and build beams and slabs on the steel pipe piles and steel casings to form a construction platform step by step. When building steel casings, the guide frame is usually fixed on some platforms that have already been built, and then the steel casing is sunk from top to bottom along the guide frame into the river bed by using crawler cranes or floating ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a steel casing guide installation method to solve the technical problem in the prior art that the method of lowering the steel casing through the guide frame from top to bottom is not suitable for guiding and lowering the steel casing with a long length; At the same time, the invention also provides a pile foundation construction platform and a floating crane that cooperate with each other to realize the guided installation of the steel casing.

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