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A repair method for unlocking of dense sand layer steel sheet piles

A repair method and technology for steel sheet piles, which are applied in sheet pile walls, buildings, infrastructure engineering, etc., and can solve problems such as difficulty in guaranteeing weld quality.

Active Publication Date: 2021-07-06
CCCC SECOND HARBOR ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Coupled with the long-term underwater environment, the quality of the weld is difficult to guarantee

Method used

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  • A repair method for unlocking of dense sand layer steel sheet piles
  • A repair method for unlocking of dense sand layer steel sheet piles
  • A repair method for unlocking of dense sand layer steel sheet piles

Examples

Experimental program
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Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] Such as figure 1 As shown, during the dredging process, the first steel sheet pile 1 of this embodiment was found to be out of lock with the I-shaped steel sheet pile 3, that is, the first steel sheet pile 1 and the first flange 4 of the I-shaped steel sheet pile 3 There is a phenomenon that the lock is disengaged at the end, such as figure 2 As shown at A and B, the elevation a of the unlocking place is below the original mud surface b (such as image 3 As shown), the harbor basin needs to be dredged to the design mud surface c. During the dredging process, the out-of-lock position is exposed. If the out-of-lock position is not repaired, the sand backfilled on the side of the first steel sheet pile 1 away from the harbor basin will pass through the out-of-lock It flowed into the harbor basin, causing the front edge of the w...

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Abstract

The invention relates to the technical field of construction, in particular to an unlocking repair method for dense sand layer steel sheet piles. On the side where the first steel sheet pile and the I-shaped steel sheet pile are out of lock, a retaining structure will be constructed on the side away from the harbor basin to isolate the sand layer behind the out of lock, and the underwater construction will repair the out of lock. The construction of the steel sheet pile unlocking restoration method of the present invention is extremely simple, blocks the flow of sediment to the harbor basin, completely solves the difficulty of unlocking restoration and the sequelae of wharf structural safety, and has great popularization value.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to an unlocking repair method for dense sand layer steel sheet piles. Background technique [0002] As a kind of sheet pile wharf, the steel sheet pile wharf has simple structure, low material consumption, low cost, convenient and rapid construction, and short construction period. In most cases, steel sheet piles can be driven first, and then the harbor basin can be dug. Steel sheet piles, as sheet piles driven continuously into the foundation to a certain depth, form a continuous wall, relying on the lateral soil resistance of the embedded part and the anchoring effect of the anchorage structure (connected by anchor rods) installed behind it to maintain stability . In order to form a continuous wall, steel sheet piles are usually effectively connected with each other by locking. During the construction of steel sheet piles, due to geological and construction problems such a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/08
CPCE02D5/08
Inventor 卢亮任雷黄勇郭晓亮黄龙
Owner CCCC SECOND HARBOR ENG
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