Steel cylinder strengthened steel faucet longitudinal reinforced concrete ceiling coil

Abstract

The invention relates to a steel barrel reinforced steel bell and spigot pre-stressed longitudinal bar concrete push pipe, which consists of a pipe socket, a spigot, a reinforcement cage and a concrete pipe core, wherein, the pipe socket 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 reinforcement cage is the longitudinal bar and the steel barrel is respectively, coaxially and fixedly arranged on the pipe socket and the spigot 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 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 the engineering cost is low, greatly reducing construction cost and transportation cost, so the concrete push pipe is a steel bell and spigot pre-stressed longitudinal bar concrete push pipe with a reinforced steel barrel and higher innovation.

Description

Steel cylinder reinforced steel socket socket prestressed longitudinal reinforced concrete pipe jacking technical field The invention relates to concrete pipes, in particular to a prestressed longitudinal reinforced concrete jacking pipe with a steel cylinder reinforced steel socket. Background technique Pipe jacking is generally used in areas where it is difficult to open grooves, has high construction environment requirements, and does not cause ground subsidence under specific geographical conditions, such as underground construction under railways and highways. 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 jackin...

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

The tube core of the existing concrete jacking pipe is fixed with two layers of coaxial steel reinforcement skeleton, resulting in a thicker tube core. The main reason is that the concrete tube needs to bear the high external pressure load caused by the construction and the transmission medium 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

At present, concrete pipe jacking is mainly used in the field of drainage. The main reasons are: 1. The pipe body bears external pressure load and internal water pressure is limited; 2. The impermeability of the pipe wall is not high; 3. The water-tightness of the socket connection is poor, The above reasons have affected the application of concrete pipe jacking in the field of water supply

Images