Device for coating bridge underwater pile with concrete

Abstract

The invention discloses a device for coating a bridge underwater pile with concrete, which comprises a steel jacket, a ring-shaped bottom-closing steel plate of the steel jacket and a ring-shaped rubber valve plate. The inside diameter of the steel jacket is larger than that of the pile; the steel jacket is formed by connecting two semi-circular steel plates with symmetrical shape; a gap is formed between the inner ring of the bottom-closing steel plate and the pile; the outer ring of the bottom-closing steel plate is in bolted connection with the steel jacket; the inner ring of the ring-shaped rubber valve plate is fixedly connected with the inner ring of the bottom-closing steel plate; and a notch is formed on the outer ring of the ring-shaped rubber valve plate and the edge of the notch is folded inside the steel jacket and closely attached to the pile. The ring-shaped rubber valve plate can achieve the effect of one-way water intake during the settling period of the steel jacket, and the steel jacket can sink smoothly from the water surface, so as to achieve the positioning effect between the steel jacket and the pile and keep the center of the steel jacket to be substantially aligned to the axis of the pile, as a result, the thickness of the concrete coated on the outer circumference of pile is uniform. The ring-shaped rubber valve plate is closely attached to the outer wall of the pile under the elastic action of the rubber valve plate and the stacking action of a cutting piece during the process of pouring underwater concrete, so that the effect of protecting against concrete leakage is achieved.

Description

technical field [0001] The invention relates to a device for repairing defects of bridge underwater piles, in particular to a device for outsourcing concrete of bridge underwater piles. Background technique [0002] When the piers and pile foundations of the bridge are below the water level, if the piles have problems such as concrete defects, exposed steel bars, corrosion, and cavities due to construction defects, or scour, collision, and corrosion in later use, etc., It needs to be patched. The workload of artificial underwater repair is heavy, and the best way is to outsource reinforced concrete reinforcement. However, if the traditional steel cofferdam is used for water retaining construction, the amount of ancillary works will be large, the construction period will be long, the cost will be high, and the economic benefit will be low. However, if a bottomed steel casing or a bottomless steel sleeve device is used for construction, due to the limited site conditions, th...

AI Technical Summary

Problems solved by technology

However, if the traditional steel cofferdam is used for water retaining construction, the amount of ancillary works will be large, the construction period will be long, the cost will be high, and the economic benefit will be low

However, if a bottomed steel casing or bottomless steel sleeve device is used for construction, due to the limited site conditions, these devices cannot be fixed at any depth in order to seal the bottom, which cannot meet the purpose of pile reinforcement

This makes it difficult to implement the method of outsourcing concrete reinforcement of underwater piles

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