Steel pipe pile supporting structure capable of being recycled and construction method thereof

Abstract

The invention discloses a steel pipe pile supporting structure capable of being recycled and a construction method thereof. The structure comprises a prestressed steel pipe pile, a thin iron skin pipeshell, a three-axis mixing pile and a crown beam. The prestressed steel pipe pile serves as the main stressed supporting component and can be recovered, the thin iron skin pipe shell is matched withthe prestressed steel pipe pile and are coated with lubricating oil, the steel pipe pile can be recovered and used, cement soil is formed after the three-axis mixing pile mixes a soil layer, the steelpipe pile is conveniently inserted, a waterproof curtain is formed after later-period hardening, the crown beam enables the supporting piles to be stressed together, and a whole is formed. Accordingto the steel pipe pile supporting structure capable of being recycled and the construction method thereof, the flexural rigidity of the steel pipe pile is improved through prestressed stranded steel wires, the pipe pile is conveniently inserted through the mixing pile, the prestressed steel pipe pile is recovered and used through a thin iron skin layer and the lubricating oil, the flexural rigidity of the steel pipe pile is effectively improved, the supporting depth is increased, meanwhile, the supporting structure is combined a the three-axis mixing pile curtain, the pipe pile is convenientlypressed in, and the steel pipe pile supporting structure and the construction method thereof can be widely applied to foundation supporting of building projects and municipal pipe gallery projects.

Description

technical field [0001] The invention belongs to the technical field of foundation pit construction, and in particular relates to a recyclable steel pipe pile support structure and a construction method thereof. Background technique [0002] Currently, steel sheet piles, steel pipe piles and reinforced concrete piles are generally used for vertical enclosure piles in foundation pit engineering. Several types of piles have their scope of application. Generally, steel sheet piles and steel pipe piles have low bending stiffness and shallow support depth, but steel sheet piles can be recycled; concrete piles have high bending stiffness and deep support depth, but the Poor tensile performance and easy damage. As a temporary project, it cannot be recycled and does not conform to the concept of green construction. Contents of the invention [0003] In order to overcome the technical defects of the existing technology, the present invention provides a recyclable steel pipe pile su...

AI Technical Summary

Problems solved by technology

Several types of piles have their scope of application. Generally, steel sheet piles and steel pipe piles have low bending stiffness and shallow support depth, but steel sheet piles can be recycled; concrete piles have high bending stiffness and deep support depth, but the The tensile performance is poor and easy to damage. As a temporary project, it cannot be recycled and does not conform to the concept of green construction

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