Slip form construction process of caisson

Abstract

The invention discloses a slip form construction process of a caisson. The slip form construction process includes the steps that firstly, a slip form system is spliced on a deck of a semi-submersiblebarge and suspended on a top truss of the semi-submersible barge, and the slip form system is suspended above the deck of the semi-submersible barge by lifting the top truss of the semi-submersible barge; secondly, a bottom mold template of the caisson is spliced on the deck of the semi-submersible barge, a plastic film is laid, protective layer cushion blocks are laid on the plastic film, and bottom plate steel bars of the caisson are tied up; thirdly, concrete is poured into the bottom mold plate of the caisson; fourthly, after the concrete of a caisson bottom plate is solidified, the top truss of the semi-submersible barge is lowered so that the slip form system is located on the upper surface of the caisson bottom plate, jacks and lifting rods for installing the jacks are installed onlifting frames of the slip form system, and the slip form system is untied from the top truss of the semi-submersible barge; fifthly, concrete is poured into a slip form template, and the slip form system slides up; and sixthly, overall pouring of the caisson is completed. The slip form construction process has the advantages of high construction efficiency, small site influence 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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