Steel faucet prestressed concrete ceiling coil

Abstract

The invention relates to a steel socket pre-stressed concrete push pipe consisting of a bell mouth, a spigot, a reinforcement cage and a concrete pipe core, wherein, the bell mouth and the spigot are respectively and fixedly arranged at the two ends of the concrete pipe core and the reinforcement cage is coaxially embedded in the concrete pipe core the outer wall of which is poured with a protective layer and the outer wall of the concrete pipe core in the protective layer is twined by a layer of pre-stressed steel wire. The concrete push pipe is simple in the whole structure and scientific and rational in design and has good durability, impermeability and joint water closeness, and besides, the pipe wall is thin and engineering cost is low, greatly reducing construction cost and transportation cost, so the concrete push pipe is a steel socket pre-stressed concrete push pipe with higher innovation.

Description

Technical field [0001] The invention relates to a concrete pipe, in particular to a steel socket prestressed concrete jacking pipe. Background technique [0002] Pipe jacking is generally used in areas where grooving is difficult, construction environment requirements are high, and ground subsidence is not caused under specific geographic environmental conditions, such as underground construction under railways and highways. When concrete jacking pipes are used as drainage pipes, non-pressure pipes are generally used. The jacking pipes are likely to cause damage to the concrete at the nozzles of the concrete jacking pipes during construction and installation processes such as deviation correction, thereby affecting the sealing performance of the joints; especially for pressure pipelines. During jacking construction, because the pressure pipe cannot be directly jacked in, it is necessary to use a concrete jacking pipe with a large enough diameter as a casing for jacking first, and...

AI Technical Summary

Problems solved by technology

Concrete jacking pipes are generally used as non-pressure pipes when they are used as drainage pipes. During the construction and installation process such as deviation correction, the concrete jacking pipe is easy to cause damage to the concrete at the nozzle of the concrete jacking pipe, thereby affecting the sealing performance of the joint; especially when the pressure pipeline is installed During the jacking construction, because the pressure pipe cannot be directly jacked, it is necessary to use a concrete jacking pipe with a large enough diameter as a casing for jacking first, and then install the pressure pipeline in the casing, thereby increasing the concrete jacking pipe. Comprehensive construction cost

[0003] The tube cores of existing concrete jacking pipes are all embedded with coaxial two-layer steel skeletons, resulting in thicker tube cores. high internal pressure load

The concrete jacking pipe of this structure is heavy in weight, the cost of raw materials is high, and the production time is long. It requires high-tonnage hoisting and lifting equipment for installation, which greatly increases the transportation cost and construction cost of concrete pipe jacking.

In addition, the water-tightness of the existing concrete pipe jacking pipeline is not ideal

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