Half-prefabricated assembled comprehensive pipe gallery formed by splicing cast-in-situ hidden beams and construction method of half-prefabricated assembled comprehensive pipe gallery

Abstract

The invention provides a half-prefabricated assembled comprehensive pipe gallery formed by splicing cast-in-situ hidden beams and a construction method of the half-prefabricated assembled comprehensive pipe gallery. The half-prefabricated assembled comprehensive pipe gallery comprises a plurality of comprehensive pipe gallery bodies, wherein each comprehensive pipe gallery body is formed by splicing a cast-in-situ baseplate and an upper prefabricated pipe gallery; U-shaped dowel bars I are reserved on the sides, facing the corresponding upper prefabricated pipe gallery, of the two ends and themiddle of each cast-in-situ baseplate; U-shaped dowel bars II which are matched with the U-shaped dowel bars I in position are arranged on each upper prefabricated pipe gallery; and all the cast-in-situ baseplates and upper prefabricated pipe galleries are connected in a staggered lap-joint manner through the U-shaped dowel bars I and the U-shaped dowel bars II. The construction method comprisesthe following steps: after the manufacturing of prefabricated components as well as the positioning and setting-out operation, binding steel bars of the cast-in-situ baseplates, casting the cast-in-situ baseplate, and carrying out curing and demolding; and then, assembling the prefabricated components, mounting steel bars and mold plates at the splicing positions, and carrying out concrete pouringat the cast-in-situ parts, so as to form the half-prefabricated assembled comprehensive pipe gallery. The half-prefabricated assembled comprehensive pipe gallery provided by the invention integratesthe advantages of both the prefabrication and cast-in-situ processes; not only can the own weights of the prefabricated components be reduced through reasonable splitting and the hoisting constructionbe facilitated, but also all the prefabricated components can be connected as a whole through the cast-in-situ hidden beams; and under the premise that the overall bearing capacity and the deformability of the comprehensive pipe gallery bodies are not reduced, the problem about how to prefabricate and assemble a multi-cabin gallery and a non-standard gallery segment can be solved.

Description

technical field [0001] The invention relates to a semi-prefabricated integrated pipe gallery spliced ​​with cast-in-situ hidden 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 only is the construction proce...

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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