Prefabricated utility tunnel spliced by virtue of cast-in-place hidden beams and mixed with hollow-core wall boards, and construction method thereof

Abstract

The invention discloses a prefabricated utility tunnel spliced by virtue of cast-in-place hidden beams and mixed with hollow-core wall boards, and a construction method thereof. The two ends of a cast-in-place bottom plate are connected with the lower part of a double-sided prefabricated hollow core-filled side wall through a splicing hidden beam separately; the middle part of the cast-in-place bottom plate is connected with the lower part of a fully-prefabricated middle partition wall through a splicing hidden beam; the two ends of a laminated top plate are connected with the upper part of the double-sided prefabricated hollow core-filled side wall separately; and the middle part of the laminated top plate is connected with the upper part of the fully-prefabricated middle partition wall.The prefabricated utility tunnel integrates the advantages of a prefabrication process and a cast-in-place process; and the dead weights of prefabricated parts can be reduced through reasonable detachment, and the parts can be connected into one piece through cast-in-place core filling and the splicing hidden beams, so that the purpose of prefabrication for a multi-cabin tunnel and a non-standardsection of the tunnel can be achieved.

Description

technical field [0001] The invention relates to a hollow-core wall panel mixed prefabricated comprehensive pipe gallery spliced ​​with cast-in-situ concealed beams and a construction method thereof. Background technique [0002] The urban underground comprehensive utility gallery is an underground space structure where various pipelines such as electric power, communication, gas, water supply, and drainage are concentrated. It solves the traffic congestion caused by the "zip link", avoids the "spider web" in the air, plays a positive role in improving the overall image of the city and creating a harmonious ecological environment in the city, and has attracted great attention from all over the country. [0003] The traditional all-in-place pipe gallery construction method requires processes such as steel bar processing and binding, formwork support, concrete pouring, maintenance, and formwork removal for the overall structure of the pipe gallery on the construction site. Not ...

AI Technical Summary

Problems solved by technology

The integral prefabricated pipe gallery has the advantages of good integrity and simple installation process, but there are problems such as large size and weight of a single section, difficult transportation and hoisting, and waterproof joints are not safe.

However, most of the existing prefabricated pipe gallery structures have poor integrity due to the large number of assembled components, and are prone to defects such as structural damage at the joints, damage to sealing materials, or aging of the pipe gallery, resulting in water seepage in the pipe gallery.

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