Cross-shaped enclosure pile and construction method capable of using a structure as enclosure structure and main body structure

Abstract

The invention discloses a cross-shaped enclosure pile and a construction method capable of using a structure as an enclosure structure and a main body structure. The cross-shaped enclosure pile comprises a plurality of cross-shaped piles with embedded parts, which are arranged according to set positions and prefabricated, wherein a coping crown beam, a waist beam and a prefabricated ribbed pre-stressed slab are fixed between each two adjacent cross-shaped piles, an inverse construction process of horizontal supports is used in combination, each coping crown beam is poured at the tops of each two adjacent cross-shaped piles, each waist beam is connected with the embedded part on each pile, each prefabricated ribbed pre-stressed slab is fixed between each two adjacent cross-shaped piles, and the coping crown beams and the waist beams control deformation of a foundation pit by being connected with the horizontal supports. After excavation of the foundation pit is completed, vertical supports and the horizontal supports of the enclosure structure are simultaneously used as vertical members and horizontal members of the main body structure of a building, waste of temporary support structures are avoided, and simultaneously working time is saved, and achievement of sustainable development of foundation pit engineering is facilitated.

Description

technical field [0001] The invention relates to a construction method in which a cross-shaped retaining pile and the retaining structure are also used as a main structure, and is especially suitable for retaining and excavating large-scale deep foundation pits in urban areas and building main bodies. Background technique [0002] At present, the enclosure structure of foundation pit engineering mostly adopts on-site hole forming, mud retaining wall and underwater pouring, which takes a long time to maintain, the quality of pile formation is difficult to guarantee, and problems are not easy to repair; Waste, the main structure of the building and the enclosure structure cannot be combined into one, resulting in waste of materials and loss of construction period, and a large number of temporary support structures such as reinforced concrete are buried underground to pollute the surrounding underground environment; After completion, it must be dismantled and cannot be used as a...

AI Technical Summary

Problems solved by technology

[0002] At present, the enclosure structure of foundation pit engineering mostly adopts on-site hole forming, mud retaining wall and underwater pouring, which takes a long time to maintain, the quality of pile formation is difficult to guarantee, and problems are not easy to repair; Waste, the main structure of the building and the enclosure structure cannot be combined into one, resulting in waste of materials and loss of construction period, and a large number of temporary support structures such as reinforced concrete are buried underground to pollute the surrounding underground environment; It must be dismantled after completion and cannot be used as a part of the main structure, which also causes waste of materials and loss of construction period, and the secondary stress and secondary deformation of the enclosure structure during the support demolition will further affect the surrounding environment

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