Concrete ceiling coil for steel ring with extrusion type insertion opening

Abstract

The invention relates to a convex spigot steel ring prestressed concrete jacking pipe. The jacking pipe consists of a steel bell end, a cylindrical steel reinforcing framework and a concrete pipe core, wherein the steel bell end is fixedly arranged at one end of the concrete pipe core, the cylindrical steel reinforcing framework is coaxially embedded in the concrete pipe core. The jacking pipe is characterized in that a spigot steel ring is coaxially fixed on an outer wall of a spigot end of the concrete pipe core; and the diameter of an outer wall of the spigot steel ring is larger than the diameter of the outer wall of the spigot end of the concrete pipe core to form a groove between the spigot steel ring and the concrete pipe core along an axial direction. The jacking pipe has the advantages of extremely simple whole structure, and scientific and reasonable design, and is a convex spigot steel ring prestressed concrete jacking pipe with a firm spigot end.

Description

technical field [0001] The invention relates to concrete pipes, in particular to a protruding socket steel ring concrete jacking pipe. Background technique [0002] Among concrete pipes, concrete pipe jacking is widely used, especially in the occasions where slotting is not possible. At present, the main structure of concrete pipe jacking is as follows: the concrete pipe core is embedded with a steel skeleton pipe cage, which is made of two coaxial cylindrical steel skeletons fixed by erecting bars, and one end of the concrete pipe core The socket end of the fixed steel socket is integrally poured with concrete. Although this type of concrete pipe jacking can be used for jacking construction, it still has the following defects: the socket end of the concrete pipe core is formed by one-time pouring of concrete, which is easy to be carried out during jacking. The damage during the collision of construction will lead to the occurrence of grout leakage, which will affect the co...

AI Technical Summary

Problems solved by technology

At present, the main structure of concrete pipe jacking is as follows: the concrete pipe core is embedded with a steel skeleton pipe cage, which is made of two coaxial cylindrical steel skeletons fixed by erecting bars, and one end of the concrete pipe core The socket end of the fixed steel socket is integrally poured with concrete. Although this type of concrete pipe jacking can be used for jacking construction, it still has the following defects: the socket end of the concrete pipe core is formed by one-time pouring of concrete, which is easy to be carried out during jacking. The damage during the collision of construction will lead to the occurrence of grout leakage, which will affect the progress of construction and the quality of the project

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