Sliding form construction technology of caisson

Abstract

The invention discloses a sliding form construction process of a caisson, which includes: step 1, assembling a sliding form system on the semi-submerged barge deck, hanging the sliding form system on the top truss of the semi-submerged barge, and lifting the top of the semi-submerged barge The truss makes the sliding form system hang above the semi-submerged barge deck; step 2, assemble the caisson bottom formwork on the semi-submersible barge deck, lay plastic film, lay protective layer pads on the plastic film, and bind the steel bars of the caisson bottom plate; step 3, Concrete is poured in the bottom formwork of the caisson; step 4, after the concrete of the bottom slab of the caisson is solidified, the top truss of the semi-submerged barge is lowered so that the sliding form system is located on the upper surface of the bottom slab of the caisson, and a jack is installed on the lifting frame of the sliding form system, and the jack is installed The jacking rod is used to release the sliding form system from the top truss of the semi-submerged barge; step five is to pour concrete in the sliding formwork and slide the sliding formwork system; step six is ​​to complete the overall pouring of the caisson. The invention has the advantages of high construction efficiency, little impact on the site and good safety.

Description

technical field [0001] The invention relates to the field of port construction. More specifically, the present invention relates to a slip-form construction technique for caissons. Background technique [0002] The caisson is a kind of deep foundation of the port wharf. It is a prefabricated box-shaped concrete component. During the wharf construction, after the wharf foundation has been excavated, riprapped and filled, compacted and leveled, the caisson will be filled with sand and gravel. Make it sink into the water by gravity, place it on the foundation of the wharf, then pour the roof on the top of the caisson, fill in the blocks and build the parapet, and finally install bollards and other components on the part above the water surface of the wharf. [0003] The existing caisson prefabrication construction methods include land-based layered pouring technology and overall one-time pouring technology. However, these two construction technologies have different problems. ...

AI Technical Summary

Problems solved by technology

[0003] The existing caisson prefabrication construction methods include land-based layered pouring technology and overall one-time pouring technology. However, these two construction technologies have different problems. Larger, and each layer of the box after pouring needs to be hoisted and assembled to form a complete caisson. When the construction is close to the top of the caisson, the construction height is high, the binding of high-altitude steel bars is labor-intensive and time-consuming, and the safety is poor

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