A construction technology of anti-permeability and anti-corrosion precast concrete square culvert

Abstract

The invention relates to the technical field of prefabricated concrete square culverts, in particular to anti-permeability and corrosion-resisting prefabricated concrete square culverts. The anti-permeability and corrosion-resisting prefabricated concrete square culverts are characterized in that a laying process of the square culverts comprises the following steps that (1) the prefabricated concrete square culverts are processed; (2) grooves are dug and a cushion layer is arranged; (3) a mortar layer is laid; (4) the square culverts are hoisted; (5) the adjacent square culverts are installed; (6) the adjacent square culverts are fixed; (7) cavities between the adjacent square culrverts are filled; and (8) the subsequent square culverts are sequentially installed and the mounting grooves of the square culverts are backfilled, so that the whole installation process is finished. The anti-permeability and corrosion-resisting prefabricated concrete square culverts have the advantages of being simple in process, simple in structure, high in anti-permeability capacity, high in corrosion resistance and the like.

Description

technical field [0001] The invention relates to the technical field of prefabricated concrete square culverts, in particular to a construction process of an impermeable and corrosion-resistant prefabricated concrete square culvert with simple process, strong anti-seepage ability and high corrosion resistance. Background technique [0002] As we all know, with the implementation of the national urban municipal infrastructure construction plan, the construction of underground comprehensive pipe corridors has also become a popular project in major cities. However, in the construction of pipe corridor projects, the joints of prefabricated concrete pipe The two major problems of concrete anti-corrosion have always been around the design, construction and normal operation of the pipe gallery, resulting in the prefabricated concrete pipe gallery not being widely used, which does not meet the requirements of the implementation of building industrialization and energy conservation and...

AI Technical Summary

Problems solved by technology

[0002] As we all know, with the implementation of the national urban municipal infrastructure construction plan, the construction of underground comprehensive pipe corridors has also become a popular project in major cities. However, in the construction of pipe corridor projects, the joints of prefabricated concrete pipe The two major problems of concrete anti-corrosion have always been around the design, construction and normal operation of the pipe gallery, resulting in the prefabricated concrete pipe gallery not being widely used, which does not meet the requirements of the implementation of building industrialization and energy conservation and environmental protection advocated by the state.

[0003] At present, in order to solve the problem of water seepage and corrosion between square culverts, patent number 2017100347383 is an invention patent for an intelligent comprehensive prefabricated pipe gallery, which discloses the change of the square culvert structure that connects square culverts closely. Holes, connectors, positioning bosses, and positioning grooves make the square culverts tightly connected, and then make them sealed and waterproof through caulking and sealing. Although this method enhances the effect of preventing water seepage, during the installation process, It is necessary to align various structures so that they can be sealed and connected. In this way, once the formation is deformed, rigid dislocation will occur, resulting in damage to the square culvert structure. Most of the solutions to the connection sealing and anti-corrosion effects between square culverts are to use changing methods. Therefore, although the sealing between the square culverts has been solved in a short period of time, if the square culverts are installed underground, once the soil is deformed and dislocated, the connection parts of the square culverts will be rigidly moved and the square culverts will be damaged. structure, difficult to re-repair

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