Is the composite pipe suitable for frozen soil area? Description of frost heaving design
Pipeline laying in permafrost regions faces two major challenges: frost heave and thaw settlement. Frost heave refers to the freezing and expansion of water in the soil at low temperature, which produces uplift and extrusion stress on the pipeline; thaw settlement refers to the sinking of the soil after the frozen soil thaws, resulting in the loss of support and deformation of the pipeline. Both of these effects may cause pipe deformation, joint leakage or even fracture.
The Wo Hong composite pipe adopts a number of anti-frost heaving designs for the permafrost environment. The first is the flexibility of the material itself. The Wohong composite pipe is made of polymer materials and has a certain degree of elasticity. Compared with rigid steel pipes, it can adapt to soil displacement caused by frost heave. The second is the design of thermal insulation layer. By setting the insulation layer outside the pipeline, the transfer of heat from the pipeline to the permafrost layer is reduced, so as to maintain the thermal stability of the permafrost and reduce the risk of thaw settlement. For pipelines buried in seasonal frozen soil areas, it is recommended to use Wo Hong composite pipes with thermal insulation materials to ensure that the depth of soil covering the top of the pipe meets the anti-freezing requirements.
In practical application, the laying methods of Wo Hong composite pipe in permafrost area are flexible and diverse. The direct burial method can be used to match the insulation layer and insulation cushion layer, and the overhead method can also be used to match the heat pipe support structure to adapt to different permafrost conditions and engineering requirements. With the characteristics of low temperature resistance, frost resistance and easy construction, Wo Hong composite pipe provides a reliable solution for pipeline engineering in permafrost areas.
Mr. Li 13526990215
Hotline
