A major breakthrough has been made in the seawater cooling project of Jazan Industrial City, Saudi Arabia, which was constructed by China Harbor and constructed by CCCC Fourth Harbor Bureau, and the project team successfully completed the shipment and installation of a 3.5-meter-diameter high-density polyethylene (HDPE) pipeline in an uncovered sea area, setting a record for the installation of the world's largest flexible pipeline.
The project is an important infrastructure project of the Jazan Industrial City in Saudi Arabia, including the first phase of the offshore HDPE water intake pipe and ancillary facilities, onshore pumping station, drainage canal, etc., aiming to provide cooling seawater supply and return services for the industrial city. The total length of the pipeline installation of the entire project is 6,600 meters, of which the diameter of the pipeline installed this time reached a record 3.5 meters. It is worth mentioning that the project team successfully installed a 3-meter-diameter submarine HDPE pipe in the JIGCC intake and drainage project in Jazan, Saudi Arabia, setting a world record at that time.
The length of the pipeline section installed this time is 403.8 meters, and it is located in an unprotected sea area with complex hydrological conditions, which is extremely difficult to construct. In order to ensure the smooth progress of the project, the project team made full preparations: firstly, the sand table deduction was carried out for key processes such as pipeline land transportation, marine transportation, mooring positioning and pipe end docking; secondly, carry out practical exercises at sea; Finally, special research was carried out on technical difficulties such as pipeline attitude control, plane positioning, and pipeline sinking process.
The project adopts a sectional construction plan, and a total of 16 sections of pipelines are shipped and installed. During the construction process, the project team overcame the challenges brought by the rough sea conditions, and finally completed this world-class project with high quality through technological innovation and refined management. The successful installation not only demonstrates CCCG's leading technical strength in the field of marine engineering, but also accumulates valuable experience for similar large-scale flexible pipeline installation projects in the future.(This article is from the official website of Seetao www.seetao.com. Reprinting without permission is strictly prohibited. Please indicate Seetao.com + original link when reprinting) Seetao.com Strategy Column Editor/Sun Fengjuan
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