Reinforced concrete drainage pipe with tongue-and-groove flexible interface

Abstract

The invention discloses a reinforced concrete drainage pipe with a tongue-and-groove flexible interface, which belongs to the field of reinforced concrete drainage pipes. The reinforced concrete drainage pipe with a tongue-and-groove flexible interface uses an ice ring buried with an attached net to perform low-temperature simulation on the main connection end of the drainage pipe, so that The main body of the drain pipe is installed at low temperature, that is, it is installed under the state of cold shrinkage. At this time, the main body of the drain pipe is at the minimum size. After the installation is completed, the main body of the drain pipe will only expand, and the compensation pad used as the seal And its internal structure only needs to be able to resist the extrusion of the main body of the drainage pipe. It can be realized that the reinforced concrete drainage pipe is pretreated before installation, so that the reinforced concrete drainage pipe is in a low-temperature shrinkage state for matching installation. At this time, the sealing The device only needs to cope with the temperature rise and expansion of the reinforced concrete drain pipe, which increases the reliability of the sealing device.

Description

technical field [0001] The invention relates to the field of reinforced concrete drainage pipes, more specifically, relates to a tongue-and-groove type flexible interface reinforced concrete drainage pipe. 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 they have high crack resistance and impe...

AI Technical Summary

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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