Underwater concrete pouring device, underwater concrete construction method and application of construction method in ultra-large deep water open caisson foundation
A technology of underwater concrete and construction methods, which is applied in infrastructure engineering, caissons, buildings, etc., can solve the problems of limited impact effect, no strength, and scattered accumulation of aggregates after pouring concrete, so as to ensure the construction quality of the project and reduce water washing Degree, the effect of solving water washing and segregation
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[0044] Such as figure 1 and figure 2 As shown, a full-scale model test for simulating actual engineering is carried out to evaluate the implementation effect of the super-large deep-water caisson foundation underwater concrete construction method provided by the present invention. The net size of the model is 6m (length) × 6m (height) × 1.4m (width). The interior is equipped with a horizontal truss composed of an 8mm thick ring plate with a 55mm@400mm overflow hole and an angle steel plate of ∠75×6mm. It is temporarily welded with side forms to form an integral structure. There are 3 horizontal trusses in the height direction of the model, with a spacing of 1500mm. The ring plate on one side is welded to the formwork panel, and the ring plate on the other side is not welded to the formwork panel. A 325mm perfusion catheter is set on one side of the model, and the opening at the bottom of the catheter is as follows: image 3 As shown in (a), it is the oblique opening method...
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