Port site drainage, high-strength carat pipes

The reliability of the drainage system of the port is directly related to the safety and efficiency of the cargo in the yard. The front of the terminal and the container yard are subject to heavy equipment rolling all year round, and the rain and seawater are alternately invaded, so it is often difficult for ordinary drainage pipes to be competent for a long time. Under such harsh working conditions, high-strength carat pipes have become the preferred solution for engineering design.

Carat pipe is a high-density polyethylene structural wall hot winding pipe, and its unique corrugated structure gives the pipe excellent ring stiffness performance. For the heavy-duty area of the port, products with ring stiffness of SN12.5 or even SN16 can be selected, which can effectively resist the continuous pressure caused by deep soil covering and flowing machinery, and avoid poor drainage caused by pipe deformation. At the same time, the polyethylene material itself has extremely low water absorption and excellent chemical corrosion resistance. In the face of seawater saline and alkali erosion and weak acid and weak alkali media that may leak from the yard, the inner wall of the pipe will not peel or scale, and the hydraulic characteristics will remain stable.

In terms of construction adaptability, the carat pipe adopts socket-type fused connection or throttle socket connection, and the interface is sealed reliably, which can adapt to the micro-uneven settlement that may occur in the soft soil foundation of the port. The length of the pipe can be customized, which greatly reduces the number of interfaces, improves the laying efficiency, and shortens the interference time to the operation of the port area. Its inner wall is smooth, the Manning roughness coefficient is low, and the drainage flow speed is fast under the same slope, which can quickly drain the rainstorm water and prevent the yard from flooding.

From the perspective of the whole life cycle, the durability of high-strength carat tubes is more than 50 years, daily maintenance-free, and the comprehensive cost advantage is obvious. For the drainage renovation of new port areas or old storage yards, the selection of carat tubes that meet the national standard is a rational choice to build a solid underground drainage network and ensure the all-weather operation of the port.