Tongue-and-groove type flexible joint reinforced concrete drainage pipe and machining process thereof

Abstract

The invention discloses a tongue-and-groove type flexible joint reinforced concrete drainage pipe and a machining process thereof, belongs to the field of reinforced concrete drainage pipes. According to the tongue-and-groove type flexible joint reinforced concrete drainage pipe and the machining process thereof, low-temperature simulation is carried out on a connecting end of a drainage pipe body by using an ice ring embedded with an attaching net, so that the drainage pipe body is installed in a low-temperature state, namely, the drainage pipe body is installed in a cold contraction state, the drainage pipe body is in the minimum size at the moment, after installation is completed, the drainage pipe body only expands, and a compensation rubber mat serving as a sealing piece and the internal structure of the compensation rubber mat only need to resist extrusion of the drainage pipe body, before installation, the reinforced concrete drainage pipe is pretreated, so that the reinforced concrete drainage pipe is installed in a matched mode in a low-temperature contraction state, at the moment, a sealing device only needs to cope with the temperature rising expansion state of the reinforced concrete drainage pipe, and the use reliability of the sealing device is improved.

Description

technical field [0001] The invention relates to the field of reinforced concrete drainage pipes, and more specifically relates to a tongue-and-groove type flexible interface reinforced concrete drainage pipe and a processing technology thereof. Background technique [0002] Concrete pipes are pipes made of concrete or reinforced concrete for transporting fluids such as water, oil, and gas. It can be divided into plain concrete pipes, ordinary reinforced concrete pipes, self-stressed reinforced concrete pipes and prestressed concrete pipes. The preparation methods of concrete drainage pipes mainly include centrifugal method, vibration method, rolling method, vacuum operation method and rolling, A method of combined centrifugal and vibrational action. In order to improve the performance of concrete pipes, China and many other countries have developed more prestressed concrete pressure pipes, which are equipped with longitudinal and circumferential prestressed steel bars, so t...

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Problems solved by technology

[0004] In some areas with large temperature differences in four seasons, the thermal expansion and contraction effect of reinforced concrete drainage pipes will be particularly obvious. Therefore, reinforced concrete drainage pipes connected by tongue-and-groove connection usually need to be sealed with additional sealing devices, such as the above-mentioned sliding Aprons, however, the traditional groove-and-groove reinforced concrete drainage pipes are usually installed at room temperature during the installation process, which leads to the above-mentioned sealing devices usually need to deal with the thermal expansion and cold contraction of reinforced concrete drainage pipes. The sealing effect of the connection between the drainage pipes will lead to a significant decrease in the service life of the sealing device, which will easily cause the failure of the sealing device and affect the sealing performance of the reinforced concrete drainage pipe connection

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