Method for dismantling existing steel sheet pile of wharf

By inserting cutting guide piles on the side of the steel sheet pile and cutting them into sections, and then excavating soil on the side of the steel sheet pile, the problem of insufficient lifting capacity of lifting equipment in the existing technology is solved, and safer and more efficient steel sheet pile removal is achieved .

CN119392706APending Publication Date: 2025-02-07CCCC FOURTH HARBOR ENG CO LTD
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Patent Information

Application Number
CN202411637597.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-02-07

AI Technical Summary

Technical Problem

In the prior art, when removing steel sheet piles, the lifting capacity of the lifting equipment is required to be at least greater than the sum of the self-weight of the steel sheet pile and the transverse connection structure, as well as the sum of the steel sheet pile and the transverse connection structure and the soil side friction resistance, resulting in the lifting equipment. It is easy to damage and difficult to remove steel sheet piles with a large depth.

Method used

By inserting the cutting guide pile on the side of the steel sheet pile, the first cutting device is guided to move along the axial direction of the cutting guide pile, the steel sheet pile is cut into smaller segments, and the soil is excavated on the side of the steel sheet pile to reduce the segments and soil body. The side friction resistance between them can reduce the lifting needs of lifting equipment.

Benefits of technology

It reduces the difficulty of pulling out steel sheet piles, reduces the risk of damage to lifting equipment, and improves the removal efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN119392706A_ABST
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Abstract

The invention relates to the technical field of wharf reconstruction, and provides a wharf existing steel sheet pile dismantling method which comprises the following steps that a cutting guide pile is inserted into the side face of a to-be-dismantled steel sheet pile, and a guide through groove is formed in the side, facing the steel sheet pile, of the cutting guide pile; a first cutting device is arranged in the cutting guide pile, the first cutting device is moved in the axial direction of the cutting guide pile, so that the first cutting device cuts the steel sheet pile through the guide through groove and cuts the steel sheet pile into at least two sections, and a soil body on the side face of the steel sheet pile is excavated to the specified elevation; and the sections of the steel sheet pile are pulled out from the underground through hoisting equipment. The technical problems that in the prior art, when the steel sheet piles are dismantled, a hoisting equipment overall pulling-out mode is adopted, the sum of the dead weights of the steel sheet piles and the transverse connecting structures and the sum of the side friction resistance of the steel sheet piles, the transverse connecting structures and the soil body need to be overcome, and the hoisting capacity is prone to being insufficient or even the hoisting equipment is damaged can be solved.
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