Block splicing type precast concrete box culvert and construction process thereof

Abstract

The invention relates to the technical field of prefabricated culverts and particularly relates to a block splicing type prefabricated concrete box culvert and a construction process thereof. The culvert comprises a top plate culvert piece, a bottom plate culvert piece, a side plate culvert piece, an anchoring structure and a fastening structure, wherein the top plate culvert piece is of a cover body structure and covers the side plate culvert pieces, each side plate culvert piece is of an L-shaped structure and comprises a vertical end and a horizontal end, the vertical end supports the top plate culvert piece, the horizontal end is connected with the bottom plate culvert piece, the anchoring structure is arranged on the bottom plate culvert pieces and the side plate culvert pieces, the fastening structure is arranged on the top plate culvert pieces and the side plate culvert pieces, and fastening bolts are used for fastening connection of the top plate culvert pieces and the side plate culvert pieces. The culvert is advantaged in that aiming at defects in the prior art, construction cost is reduced, the risk in the transportation process is reduced, and construction efficiency isimproved.

Description

technical field [0001] The invention relates to the technical field of prefabricated assembled culverts, in particular to a block-spliced ​​prefabricated concrete box culvert and its construction technology. Background technique [0002] As one of the important components of highway engineering, culverts and passages occupy a considerable proportion in terms of project quantity and project cost, and box culverts are a commonly used concrete structure form in culverts and passages. At present, the construction of box culverts in my country generally adopts the cast-in-place process, but the construction of highway traffic projects is facing an upgrading transformation from a labor-intensive industry to an industrialized and standardized construction. Therefore, the prefabricated concrete box culvert, which has the advantages of short construction period, high quality and good durability, has been gradually popularized and applied in recent years. [0003] In the application ...

AI Technical Summary

Problems solved by technology

[0003] In the application of prefabricated culverts, its connection has become a key issue. The general connection method of prefabricated box culverts is not reliable, the mechanical performance is poor, and the waterproof performance is not guaranteed.

At the same time, box culverts are generally prefabricated as a whole or prefabricated in upper and lower sections. This prefabrication method has brought many problems in the process of hoisting and transportation, and greatly increased the construction cost of prefabricated box culverts, making it difficult to popularize and use them in large quantities.

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