.3 The corrugated drainage pipe is defined as a double-walled spiral corrugated pipe that uses high-density polyethylene as the base, a steel strip coated with adhesive resin on the surface to form a corrugated shape as the main support structure, and is wound and compounded with the polyethylene material to form an integral body.
, .Requirements
, .3) Applicable to medium whose long-term temperature is not greater than ℃.
, .3) Buried plastic drainage pipes should be designed according to the theory of flexible pipes (pipe and soil work together). At the same time, the change in the vertical direction of the pipeline under the design condition shall not be greater than the diameter of the pipe.
, .) The selection of pipe ring stiffness is an important indicator in the design of plastic pipes, so it should be determined based on comprehensive considerations such as pipeline burial depth, ground load, properties and compaction coefficient of trench backfill soil, and construction load. Blindly adopting high ring stiffness is uneconomical. For pipelines with a burial depth less than 0.5% under the roadway, the impact of pipeline deformation on the road surface should also be considered.
, .3) Appearance
, .3 The inner surface of the pipe should be smooth, and the external corrugation should be regular. The inner and outer walls of the pipe should be free of bubbles and visible impurities, and the welds should not be detached.
, .3 The cross section of the pipe after cutting should be trimmed without burrs.
, .3 The incisions of the steel strips at both ends of the pipe should be on the same longitudinal line of the pipe.
, .3) Anti-corrosion layer thickness
, .3 The bonding resin and outer polyethylene are the anti-corrosion layer of the steel strip, which should comply with the relevant regulations in the - standard.
Main uses of steel belt corrugated pipes:
Municipal engineering. Can be used for drainage and sewage pipes.
Construction projects. Building rainwater pipes, underground drainage pipes, sewage pipes, ventilation pipes, etc. can be used.
3. Electrical and telecommunications engineering. Can be used as protective tube for various power cables.
Railway and highway communications. Used as protective tube for communication cables and optical cables.
Industry. It is widely used in sewage pipes in chemical, pharmaceutical, environmental protection and other industries.
Agriculture, salt industry, fishery water transportation, garden projects. Used for drainage and irrigation of farmland, orchards, tea gardens and forest belts.
Road works. Used as seepage and drainage pipes for railways and highways.
Mine. It can be used as mine ventilation, air supply and drainage pipes.
The open-hole double-wall corrugated pipe can be used as the seepage drainage pipe of the alkaline highway.
Golf course and football field projects. Used for water seepage drainage pipes in golf courses and football fields.
Used in water conservancy projects, drainage and sewage pipes in various industries. Such as large terminals, port projects, large airport projects, etc.
corrugated drain pipe