Construction technology of recyclable steel pipe pile without grouting

Abstract

The invention relates to a construction process of non-grouted recyclable steel-pipe piles. The construction process includes: leveling and clearing a site, manufacturing steel-pipe piles, measuring, positioning and setting out, positioning pitch of holes, positioning a drill rig, drilling, sinking the steel-pipe piles in time after clearing the holes, setting recyclable top beams, excavating in the vertical direction, hanging nets among the piles to protect the surface, and recycling the steel-pipe piles. A manufacture method of steel-pipe piles includes threaded connection or welded connection. Each steel-pipe pile comprises a bottom pointed seal cover, a screwed plug, a thin-walled steel pipe, and a top flat seal cover. The steel-pipe piles and anchor cables are arranged crisscross to form a steel-pipe pile supporting system which is locked with the top beams and middle beams; nets are hung among the piles to form the supporting structure. The construction process has the advantages that grouting is not required, deep foundation pit temporary supporting is performed in geologic structures of silt, clay, sand, strong-weathered rock layers, the supporting structure has high rigidity and good supporting effect, the cost is saved, the steel-pipe piles are easy to recycle, and underground metal contamination is avoided.

Description

Technical field: [0001] The invention relates to a steel pipe pile used in the construction industry, in particular to a construction process of a recyclable steel pipe pile without grouting. 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. After the temporary support project is completed, recycling support materials and reusing recycled ...

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

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