A prefabricated assembly structure of superimposed integral comprehensive pipe gallery and its construction method

Abstract

The invention discloses an overlapping integral type prefabricated assembly structure for a comprehensive pipe gallery and a construction method thereof. The overlapping integral type prefabricated assembly structure comprises envelop enclosures, a pipe gallery prefabricated assembly structure body, a bottom plate cushion course and a completely outer-cladding waterproof layer, wherein the envelop enclosures are located in a foundation pit; the pipe gallery prefabricated assembly structure body is arranged between the envelop enclosures; the bottom plate cushion course is arranged under the pipe gallery prefabricated assembly structure body; and the completely outer-cladding waterproof layer is arranged on the outer side surface of the pipe gallery prefabricated assembly structure body in a cladding mode. The upper portion of the pipe gallery prefabricated assembly structure body is filled with backfill earth, and the completely outer-cladding waterproof layer is arranged on the outer side surface of an outer side cast-in-situ part of the pipe gallery prefabricated assembly structure body in a cladding mode. The construction method of the overlapping integral type prefabricated assembly structure comprises the steps of prefabricated component machining, foundation pit excavation, bottom plate pouring, side wall construction, mid-partition construction, top plate construction, earth backfilling and the like. According to the overlapping integral type prefabricated assembly structure for the comprehensive pipe gallery and the construction method thereof, the prominent problems of force bearing of joints, water seepage of connection seams and the like in the underground engineering prefabrication process are solved; and the structural modes of bottom plate casting in situ, side wall single-layer overlapping, mid-partition double-layer overlapping, top plate overlapping, all-joint casting in situ and completely outer-side waterproof layer cladding are adopted, so that effective connection and the waterproof function of the joints are ensured.

Description

Technical field [0001] The invention relates to a prefabricated assembly structure and a construction method thereof, in particular to a laminated integral assembly structure of a comprehensive pipe gallery and a construction method thereof. Background technique [0002] With the rapid development of the economy and the continuous improvement of the level of urbanization, the development of underground space is also increasing. In recent years, comprehensive underground pipe corridors have become the direction of domestic vigorous development. At present, due to construction conditions and waterproof requirements, the main structure of integrated underground pipe gallery is most commonly cast-in-place concrete structure. [0003] However, since the cast-in-situ underground structure is poured on-site artificially, the following defects and ills are inevitable: [0004] 1. It takes time to bind the steel cage and support the concrete formwork. The internal construction of the main st...

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Problems solved by technology

[0007] The purpose of the present invention is to provide a prefabricated assembly structure of a superimposed integrated comprehensive pipe gallery and its construction method. To solve the prefabricated assembly of existing underground projects, the safety of stress cannot be guaranteed between nodes, and the joints between prefabricated components are prone to water seepage Technical problems with water leaks

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