Shallow buried engineering to choose double-wall pipe or steel belt pipe, practical experience in Hubei construction site

In the shallow burial project in Hubei, the selection of double-wall pipes and steel strip pipes has always been the core concern of on-site technicians. Combined with the practical experience of multiple construction sites in Wuhan, Jingzhou and other places, accurate judgments can be made according to engineering requirements and site conditions.

If the shallow burial depth is 1-3 meters, involving municipal drainage pipe network, residential rain and sewage diversion and other projects, the double-wall pipe is preferred. Hubei has a long rainy season and large fluctuations in groundwater level. The double-wall pipe has excellent overall impermeability and can effectively avoid hidden dangers of leakage. At the same time, it is lightweight and has high transportation and installation efficiency. It is especially suitable for scattered small projects, which can shorten the construction period and reduce labor costs. In addition, the double-wall pipe has good flexibility. It can also better adapt to deformation in the face of slight settlement of soft soil foundations in some areas of Hubei.

When the shallow buried project is located under the heavy road and the bearing capacity of the foundation is insufficient, such as the pipeline laying under the internal road of the factory, the steel belt pipe is more advantageous. The ring stiffness of the steel belt pipe is much higher than that of the double-walled pipe, which can withstand greater external loads, and even if it is buried shallowly, it can resist the pressure caused by the rolling of vehicles. However, the weight of the steel belt pipe is too large, and the foundation needs to be leveled during installation. There is a lot of underground silt in some construction sites in Hubei. Before construction, the substrate needs to be treated in advance to avoid the deformation of the pipe under force.

Overall, the selection of pipes for shallow buried projects cannot be generalized. It is necessary to make a comprehensive judgment based on the local geological conditions, project load requirements, and construction period in Hubei: choose double-wall pipes for construction efficiency and cost control, and choose steel belt pipes for structural strength and load capacity to ensure the long-term stability and practicality of the project.