Assembly type casing box bottom plate

Abstract

According to the technical scheme, the assembly type pouring jacket bottom plate is characterized in that the assembly type pouring jacket bottom plate comprises a plurality of prefabricated plates, the prefabricated plates are made of concrete and spliced with one another, receding holes allowing steel casings to penetrate through are formed in the prefabricated plates, pre-embedded anchor piles are arranged at the positions, close to the receding holes, in the prefabricated plates, and the prefabricated plates are embedded in the pre-embedded anchor piles. An anchoring bracket is arranged on the embedded anchor pile and used for being fixedly connected with a steel casing. The precast slabs are spliced with one another and are fixedly connected with the steel casing by means of the pre-embedded anchor piles and the anchoring brackets, bottom sealing concrete does not need to be poured, the construction period is shortened, the construction efficiency is improved, and leakage of concrete can also be reduced.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to an assembled box bottom plate. Background technique [0002] The high-pile cap of bridges in water refers to the cap whose bottom surface is higher than the top surface of the river bed. Since the construction load of the cap cannot directly fall on the river bed during the construction of the cap, it is often constructed by using the bottom box construction technology. When constructing the bottom plate of the box with a bottom, it is necessary to pour the bottom concrete under water and equal strength. The amount of concrete for the underwater bottom cover of the steel box with a bottom is large, resulting in a large load of the hoisting system of the steel box, and the bottom concrete is poured underwater, and the visibility of the underwater pouring is poor. The eccentric load is difficult to control; the time for the bottom-sealing concrete to be strong is as lo...

AI Technical Summary

Problems solved by technology

The amount of concrete for the underwater bottom cover of the steel box with a bottom is large, resulting in a large load of the hoisting system of the steel box, and the bottom concrete is poured underwater, and the visibility of the underwater pouring is poor. It is difficult to control the eccentric load; the time for the bottom-sealing concrete to be strong is as long as 5-7 days, which affects the construction period of the bearing platform and reduces the turnover efficiency of the casing

Moreover, the pouring of a large amount of back-sealing concrete is easy to leak, causing water pollution

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