Self-propelled recyclable steel pipe pile and construction method

Abstract

The invention relates to a steel pipe pile for the construction industry, in particular to a self-advancing recyclable steel pipe pile and a construction method. The self-advancing recyclable steel pipe pile comprises a self-advancing connector, a male adapter, a steel pipe and a female adapter. The male adapter and the female adapter are firmly welded to the two ends of the steel pipe to form one section of steel pipe pile, the self-advancing connector is connected with the steel pipe pile, the steel pipe pile with the self-advancing connector is taken as a beginning end, all steel pipe piles are connected in a two-two connection mode through female adapters and male adapters, and an eccentric bit and an impacter drive the steel pipe piles to advance automatically through the pressure of compressed air. A supporting structure is adopted in the steel pipe pile supporting system, wherein the supporting structure is formed by arranging the steel pipe piles and anchor ropes alternatively, locking the steel pipe piles and the anchor ropes through crown beams and waist beams and hanging nets among the steel pipe piles. According to the self-advancing recyclable steel pipe pile and the construction method, hole forming and piling are completed at one time, the hole collapse phenomenon of a cobblestone or miscellaneous fill geologic structure is eliminated, structural rigidity is large, stability is strong, the supporting effect is good, the steel pipe piles are easy to recycle, construction efficiency is high, and cost is saved.

Description

Technical field: [0001] The invention relates to a steel pipe pile used in the construction industry, in particular to a self-propelled recyclable steel pipe pile and a construction method. Background technique: [0002] With the acceleration of urbanization in my country, a large number of temporary support projects have appeared in high-rise building projects, subway station construction, air defense projects, tunnel projects, mine underground projects, etc. These projects use a large amount of steel, cement commercial concrete and other building materials. Because it cannot be recycled, it not only wastes a lot of building materials, but also creates great underground pollution, especially for urban reconstruction, including deep foundation pits on surrounding floors, underground air defense facilities, underground pipeline layout, etc., which bring construction obstacles. Especially in the temporary support construction of deep foundation pits with geological structures o...

AI Technical Summary

Problems solved by technology

[0002] With the acceleration of urbanization in my country, a large number of temporary support projects have appeared in high-rise building projects, subway station construction, air defense projects, tunnel projects, mine underground projects, etc. These projects use a large amount of steel, cement commercial concrete and other building materials. Because it cannot be recycled, it not only wastes a lot of building materials, but also forms a great underground pollution, especially for the reconstruction of the city, including deep foundation pits on surrounding floors, underground air defense facilities, underground pipeline layout, etc., which will bring construction obstacles

Especially in the construction of temporary support for deep foundation pits with geological structures of pebbles and miscellaneous fillings, cast-in-situ piles composed of cement and steel cages cannot be used due to serious hole collapse. At present, there is no domestic one that is suitable for this geological structure and can be recycled. supporting structures and construction methods

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