An intensive permanent support assembly basement structure system and construction method

Abstract

The invention discloses an intensified permanent support assembly type basement structure system and a construction method. The system comprises a basement outer wall and a basement floor with basement structures, and single row or multiple rows of support piles for supporting a foundation pit; a crown beam at the top of the single row of support piles is cast with a concrete construction road on the outer side of the foundation pit as a whole; outer extending supports are arranged between the basement outer wall and the support piles; the crown beam is arranged at the tops of the support piles; the adjacent rows of support piles are connected through the crown beam; and the basement outer wall and the basement floor both adopt prefabricated plates. On the basis of the foundation pit adopting a permanent support structure, the basement part adopts an assembled structure, so that the field construction is convenient and fast, the structure quality is easy to guarantee, the production efficiency can be effectively promoted, the construction garbage is reduced to a greater extent, the organic combination of permanence of the support structure and assembly of the basement structure can be realized, and the organic unification of building structure design and support structure design is realized.

Description

technical field [0001] The invention relates to underground engineering, in particular to an intensive permanent support assembly type basement structure system and construction method. Background technique [0002] In the field of building structures, prefabricated reinforced concrete structures have become one of the important directions for the development of building structures. Compared with cast-in-place concrete structures, prefabricated structures have the advantages of easy guarantee of structural quality, convenient and quick on-site assembly, and can effectively improve production efficiency. The reduction of construction waste has good economic and environmental benefits. At this stage, most prefabricated reinforced concrete structures are only used in above-ground building structures. Because basement structures put forward higher requirements for waterproofing and crack control of external walls, prefabricated concrete structures are relatively less used in bas...

AI Technical Summary

Problems solved by technology

[0003] In foundation pit engineering, especially deep foundation pit engineering, the retaining wall support structure based on support piles is one of the common forms of deep foundation pit support. In traditional building structure design, the foundation pit support structure is usually regarded as temporary The permanent construction measures only play a role in the construction stage of the underground structure. After the foundation pit is backfilled, the ground will be abandoned. This will cause a great waste of building materials and social resources. However, if these piles can be further utilized, energy can be greatly saved. In addition, the construction of the existing basement is relatively complicated, and there are many procedures, so the foundation pit support system cannot be effectively used, and the area above the ground is small. The underground space is greatly reduced, and the underground space needs to be fully utilized, so it is necessary to conduct more in-depth research on the construction of basements that can improve construction speed and save energy

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