Underground comprehensive pipe gallery prefabricated assembling construction method

Abstract

The invention discloses an underground comprehensive pipe gallery prefabricated assembling construction method. The underground comprehensive pipe gallery prefabricated assembling construction methodcomprises the following steps that (1), a mold and a reinforcement cage are prepared; (2) concrete is poured and vibrated; (3), steam curing and demoulding are carried out, (4), lifting and transportation are carried out; and (5), assembling is carried out. A BIM modeling is carried out before the step (1) is carried out; reinforcing steel bar cage construction is formed by auxiliary binding andbinding of a reinforcing steel bar shaping tire film; after the reinforcing steel bar cage is put into a mold, a hanging nail and a bolt are pre-buried; after concrete pouring is completed, an auxiliary angle at the corner position of the inner wall of a prefabricated pipe gallery is carried out, and a tensioning groove is formed in the middle of the auxiliary angle; and a first section of the prefabricated pipe gallery is spliced from the lowest gradient, and when two sections of two pipe gallery are assembled, a jack is combined to carry out opposite angle tensioning until the four corner parts are tensioned and pulled. The reinforcement cage can be smoothly fed into a die once, the pipe gallery structure does not need to be punctured in the pipe gallery when a support is hoisted and installed, the influence of ground settlement on the pipe gallery can be effectively prevented, and the construction efficiency and the construction quality are improved.

Description

technical field [0001] The invention relates to the technical field of pipe galleries for urban underground pipe network systems, in particular to a prefabrication and assembly construction method for underground comprehensive pipe galleries. Background technique [0002] Compared with the cast-in-place pipe gallery, the prefabricated pipe gallery has good appearance quality, high construction efficiency, less environmental pollution and less material waste. The existing prefabricated assembly construction method of the pipe gallery mainly includes several steps of making molds and steel cages, concrete pouring and vibration, steam curing, lifting and transportation, and assembly. [0003] The main problems of this construction method are: [0004] (1) During the binding and forming process of the steel cage, the dimensional error is large, which cannot ensure that the steel cage can be put into the mold smoothly at one time; (2) When hoisting, it is necessary to place a ce...

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Problems solved by technology

[0004] (1) During the binding and forming process of the steel cage, the dimensional error is large, which cannot ensure that the steel cage can be put into the mold smoothly at one time; (2) When hoisting, it is necessary to place a ceiling on the pipe gallery, and when loading the installation bracket, it is necessary to screw in the pipe gallery, which will damage the steel cage. The structure of the pipe gallery causes water seepage; (3) The assembly position of the pipe gallery is a weak ring, which cannot effectively prevent the impact of ground subsidence on the pipe gallery; (4) The construction efficiency is low, and the construction quality and progress need to be improved

Therefore, the prefabricated assembly construction of underground pipe gallery is currently in the exploratory stage, and there is no scientific and reasonable comprehensive construction method yet.

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