Flat wall winding conduit strip for repairing rain and sewage conduit and repair method

Abstract

The invention mainly relates to a flat wall winding conduit strip for repairing a rain and sewage conduit. The flat wall winding conduit strip comprises a strip, an outer wall plate, an inner wall plate and reinforcing ribs arranged between the inner wall plate and the outer wall plate, wherein the strip is formed by the inner wall plate, the outer wall plate and the reinforcing ribs, and concave connecting table boards are arranged on the inner wall plate at the two sides of the strip; clamping grooves are arranged in the connecting table boards, and fixed steel strips are arranged in the connecting table boards; and fixed dowel strips are arranged on the fixed steel strips. The method mainly comprises the following steps of: 1) detection of conduit gas; 2) cleaning of the conduit; 3) installation of the PVC (polyvinyl chloride) flat wall winding conduit; 4) treatment of a well chamber nozzle; 5) acceptance of appearance of a new conduit; 6) closed water acceptance of the conduit; and 7) delivery. The flat wall winding conduit strip provided by the invention has the advantages of effectively preventing the settlement of the conduit, enhancing the radial compressive strength of the whole conduit, and having good anti-leakage effects, strong corrosion resistance, smooth inner wall and good discharge effects.

Description

technical field [0001] The technology of the invention relates to the field of repairing rainwater and sewage pipes, in particular to a flat-wall winding pipe strip for repairing rainwater and sewage pipes and a repairing method. Background technique [0002] As we all know, the longest use of underground rain and sewage pipes is large-diameter cement pipes. The geological conditions for laying cement pipes are too poor. After a long period of gravity, acid-base corrosion, and high-intensity pressure, the cement pipes will sag, crack, and pulverize, resulting in gaps between the two cement pipes. Cracking, misalignment, and leakage occur. The geology where the cement pipe is laid is more unstable under the action of water seepage, and the subsidence effect is serious. At the same time, sediment or other impurities are easy to accumulate inside the pipe at the subsidence. Blockage will seriously affect the normal discharge of rainwater and sewage, and weather such as heavy r...

AI Technical Summary

Problems solved by technology

[0002] As we all know, the longest use of underground rain and sewage pipes is large-diameter cement pipes. The geological conditions for laying cement pipes are too poor. After a long period of gravity, acid-base corrosion, and high-intensity pressure, the cement pipes will sag, crack, and pulverize, resulting in gaps between the two cement pipes. Cracking, misalignment, and leakage occur. The geology where the cement pipe is laid is more unstable under the action of water seepage, and the subsidence effect is serious. At the same time, sediment or other impurities are easy to accumulate inside the pipe at the subsidence. Blockage will seriously affect the normal discharge of rainwater and sewage, and in case of heavy rain and other weather, it will cause disasters such as waterlogging of urban roads

This kind of repair method is almost impossible to carry out in an environment that does not affect people's normal work and life in places such as old urban areas or subway stations that are more prosperous or have a large passenger flow.

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