A connection structure and connection method between retaining piles and main beams of underground structures

Abstract

The invention discloses a connection structure and a connection method of a fender pile and a subsurface structure main body beam. The connection structure of the fender pile and the subsurface structure main body beam comprises a subsurface connection wall and the subsurface structure main body beam, wherein the subsurface structure main body beam passes through a basement exterior wall, and is connected with the fender pile, a circle of brackets is arranged on the subsurface structure main body beam, and the brackets are contacted with the basement exterior wall through a middle elastic sleeper block, and achieve a suppression function for offsetting of the basement exterior wall. The connection method of the fender pile and the subsurface structure main body beam includes: pasting a waterproof coiled material on the exterior of the basement exterior wall, and then laying polystyrene board protection materials, and finally compacting the basement exterior wall through backfill. By using the connection method of the fender pile and the subsurface structure main body beam, force and a bending moment on the subsurface structure main body beam directly act on the fender pile, and therefore the thickness of the basement exterior wall is reduced, and a subsurface structure is reasonably stressed and harmonically deformed.

Description

technical field [0001] The invention relates to a connection method between an enclosure pile and a structural main beam, and is especially suitable for using an enclosure pile as a part of the main structure to bear the load. Background technique [0002] In the excavation of deep foundation pits in cities, there are more and more cases where the enclosure structure doubles as the main structure. The main methods are: using the underground diaphragm wall as part of the outer wall of the structural basement; or combining the internal support as the main structure with the reverse method Liang et al. On the whole, this method of using the enclosure structure as the main structure mainly relies on the advantages of the underground diaphragm wall's good impermeability. However, most deep foundation pits still use bored cast-in-situ piles as the enclosure structure, and the scheme of using enclosure piles as the main structure is still immature. [0003] Chinese patent CN 2023...

AI Technical Summary

Problems solved by technology

[0006] In the above scheme of using the enclosure piles as the main structure, the enclosure piles and the main structure are hinged, that is, they cannot bear the bending moment of the main structure, but can only bear the vertical axial force or horizontal shear force, and the structural load is mainly composed of The column and wall of the main body are borne by the main body, and the contribution of the retaining piles to the rigidity of the main body is not large, and its advantages have not been brought into play

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