Large diameter carat tube DN600-DN1200 engineering application advantages

In municipal drainage, sewage, sponge city water storage and other large and medium-sized underground pipe network projects, DN600-DN1200 large-diameter carat pipes are one of the mainstream pipes currently used, and their structural characteristics and engineering adaptability have obvious advantages over traditional pipes.

Adaptation scene and selection advantages

The carat pipe in this diameter range just covers the core flow demand of the main urban sub-trunk pipe network, the industrial park sewage pipe network, and the urban inland river sewage interception pipe network. The ring stiffness can be flexibly selected according to the buried depth requirements of 4kN/m2, 8kN/m2, 12.5kN/m2 and other grades. There is no need to blindly choose larger diameter pipes for the matching flow, which can effectively control the material procurement cost in the early stage of the project. Compared with the same diameter cement pipe and steel belt pipe, the carat pipe's own weight is only 1/8 of that of the cement pipe, and there is no need for large-scale special equipment for transportation, loading and unloading. During the selection stage, the pipe wall structure can be flexibly adjusted according to the geological conditions of the project, and it can be adapted to complex construction environments such as soft soil foundation and collapsible

The efficiency advantage of the construction process

The DN600-DN1200 carat pipe adopts a flexible electric hot melt interface, and the length of a single pipe can be customized to 6 meters or 12 meters. Compared with the single length of traditional cement pipes of 2 meters, the number of interfaces is reduced by more than 60%. The welding time of a single section interface is only 15-20 minutes, and the sealing performance can reach the zero leakage standard. There is no need for additional interface waterproofing treatment. The pipe has a light weight, and small construction machinery can be used for on-site hoisting. The width of the pipe trench is only 0.8 meters wider than the outer diameter of the pipe. Compared with the same diameter cement pipe, the amount of earth and stone excavation can be reduced by 30%. In the rainy season construction and site-limited urban construction scenarios, the construction period can be effectively shortened and the safety risk of on-site operations can be reduced.

The performance advantages of long-term operation and maintenance

The roughness of the inner wall of the carat tube in this diameter range is only 0.009. Compared with the roughness of the cement tube of the same diameter of 0.014, the flow capacity enhancement is more than 30%. Under the same flow demand, a smaller diameter pipe can be selected. It is not easy to scale or be blocked by debris during long-term operation, which can reduce the frequency of pipe network dredging. The carat tube has excellent acid and alkali corrosion resistance, which can adapt to the transportation needs of various media such as domestic sewage and industrial wastewater. The normal buried service life can reach more than 50 years. There is no need for anti-corrosion treatment during operation and maintenance, which can greatly reduce the operation and maintenance cost of the whole life cycle of the pipe network.

Overall, the comprehensive advantages of DN600-DN1200 large-diameter carat pipes in terms of material cost, construction efficiency, operation and maintenance costs are obvious, making them a cost-effective choice for current large and medium-sized underground pipe network projects.