An upper and lower split prefabricated pipe gallery and its installation method

Abstract

The invention discloses an up-down split prefabricated pipe rack. The up-down split prefabricated pipe rack comprises an upper pipe rack and a lower pipe rack; the upper pipe rack includes a top plate and two upper side plates; the lower pipe rack includes a baseplate and two lower side plates; the two upper side plates and the two lower side plates are matched and connected, and the internals are empty bins; and the upper pipe rack and the lower pipe rack are connected through a PC steel rod. A prefabricating method comprises the steps of: soil excavation and foundation pavement, placement of the lower pipe rack, installation of the upper pipe rack, grouting of through holes of the upper side plates, glue filling in joints, installation and connection of next sections of the lower pipe rack and the upper pipe rack, meanwhile, bonding of groove foam strips at the bottom of the lower pipe rack, and spraying of waterproof fillers. The up-down split prefabricated pipe rack achieves light weight, convenience to transport and install and excellent firmness and tightness through single casting.

Description

technical field [0001] The invention relates to the technical field of a comprehensive pipe gallery for urban underground pipe network systems, in particular to an upper and lower split prefabricated pipe gallery and an installation method. Background technique [0002] The comprehensive pipe corridor refers to the construction of a municipal shared tunnel under the urban road, which integrates various municipal pipelines such as electricity, communication, water supply, and gas, and implements "unified planning, unified construction, and unified management" to achieve the purpose of underground space. Comprehensive utilization and resource sharing. [0003] The construction of traditional comprehensive pipe gallery generally adopts on-site pouring, which requires processing and binding of steel bars, formwork support, concrete pouring, maintenance, formwork removal and other processes on the construction site. This method not only has complicated construction procedures and...

AI Technical Summary

Problems solved by technology

[0007] 1) Due to the high height and heavy weight of the prefabricated pipe gallery, mold expansion often occurs at the lower part of the mold during pouring, resulting in mold damage;

[0008] 2) Since the mold is integral, when concrete is poured into the mold from top to bottom, the air and air bubbles at the bottom of the mold cannot be completely discharged, resulting in honeycomb defects in the bottom plate of the formed pipe gallery, and even partial exposure The rib phenomenon seriously affects the structural strength, service life and sealing performance;

[0009] 3) After pouring, demoulding is difficult, and abrasive tools are easy to wear, reducing the service life of the mold

[0011] 1) The pouring top surface of the mold is the matching surface during the assembly of the pipe gallery. If vertical integral pouring is adopted, the mold cannot guarantee the flatness of the poured surface, which will affect the subsequent assembly and sealing of the pipe gallery

[0012] As for the installation method, although the installation of the integral prefabricated pipe gallery is relatively simple, its transportation and hoisting are inconvenient due to its large overall weight.

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