Quick-mixing construction method based on prefabrication and assembly of superposed type underground utility tunnel

Abstract

The invention relates to quick-mixing construction method based on prefabrication and assembly of a superposed type underground utility tunnel. The quick quick-mixing construction method based on prefabrication and assembly of the superposed type underground utility tunnel comprises the steps of zoning and segmenting an overall underground utility tunnel; excavating a foundation pit of the tunnel,and carrying out waterproof construction on a base layer and a bottom part; assembling prefabricated and assembled sections, and meanwhile, constructing reinforcing steel bars on cast-in-situ segments and carrying out template engineering construction; pouring and maintaining concrete; carrying out waterproof engineering construction; constructing a next zone: sequentially accomplishing the majorstructure construction of other tunnels in assembly zones according to the steps; and backfilling: backfilling the accepted tunnel structures until accomplishing the construction of the whole tunnel.According to the quick construction method, the underground utility tunnel is flow-process constructed in a zoning and segmenting way, each zone is divided into multiple flow-process operation areas, each flow-process operation area is further divided into a cast-in-situ segment and a prefabricated and assembled segment, and the advantages of the cast-in-situ construction technology and the prefabricated and assembled type construction technology are fully combined, so that the aim of effectively utilizing the construction operation surface for quick construction is achieved.

Description

technical field [0001] The invention relates to the construction field of an underground comprehensive pipe gallery, in particular to a rapid mixing construction method based on a prefabricated and assembled superimposed underground comprehensive pipe gallery. Background technique [0002] Today, the urban underground comprehensive pipe gallery is widely used more and more because of its comprehensiveness, long-term performance, maintainability, environmental protection and many other advantages. With the improvement of people's requirements for the performance of the comprehensive pipe gallery, the structure of the pipe gallery is becoming more and more complex, and the construction period is getting longer and longer. It is difficult for the traditional construction technology to meet the new requirements, especially for long-distance, multi-section and complex construction conditions. The underground comprehensive pipe gallery puts forward more stringent construction requ...

AI Technical Summary

Problems solved by technology

When the overall cast-in-place method is adopted, usually due to a large number of steel bars, formwork and concrete pouring projects on site, the construction is difficult, the construction period is long, and the construction cost is high; when the prefabricated assembly method is adopted, usually due to the Large, causing inconvenience in transportation, and at the same time, higher requirements for assembly machinery, resulting in greater difficulty in construction

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