Pile erection and construction method of cast-in-place pile in deep water

By utilizing buoyancy and a rotation mechanism to vertically set the cast-in-place piles in deep water, combined with limiting piles and a split casing structure, the problems of high cost and difficulty in deep-water pile construction have been solved, achieving efficient and low-cost cast-in-place pile construction.

CN116446386BActive Publication Date: 2026-05-29CCCC FIRST HARBOR ENGINEERING CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CCCC FIRST HARBOR ENGINEERING CO LTD
Filing Date
2023-05-11
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing technologies require large construction vessels for deep-water vertical cast-in-place pile construction, resulting in high costs, large land occupation, and high difficulty in pile erection. Existing methods are not suitable for deep-water construction.

Method used

The buoyancy of the piles is used to rotate them in the water and set them vertically. The position and orientation of the piles are constrained by limiting piles and rotating mechanisms. The verticality of the piles can be detected and adjusted by combining buoyancy and gravity. A split-type casing structure is used to simplify construction.

Benefits of technology

It reduced reliance on large construction vessels, simplified the pile-erecting process, lowered construction costs, and improved construction efficiency and verticality control.

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Abstract

The application relates to a pile erecting and construction method of a cast-in-place pile in deep water and belongs to the technical field of engineering construction. The pile erecting method of the cast-in-place pile in deep water comprises the following steps: a cast-in-place pile floating on the water surface is extended into a limiting groove of a construction ship in the left-right direction of the construction ship through a slot and is connected with a rotating mechanism of the construction ship; limiting piles symmetrically arranged on the front and back sides of the slot are vertically arranged downwards so that the limiting piles are intersectingly arranged with the cast-in-place pile floating on the water surface; the buoyancy and / or gravity of the cast-in-place pile is adjusted so that the cast-in-place pile rotates downwards in a vertical plane with the connecting position with the rotating mechanism as the center until the cast-in-place pile is vertically arranged in the water. The pile erecting method of the cast-in-place pile in deep water utilizes the buoyancy to rotate and vertically arrange the cast-in-place pile in the water so as to complete the pile erecting construction underwater; and the overall structure is simple and the construction is convenient.
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