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World records set by South-to-North Water Diversion Project

China.org.cnUpdated: May 8, 2018

XIV. Cutting edge technologies applied in PCCP pipe engineering at the Beijing section of the central route

Through the construction and quality control of ultra large diameter Prestressed Concrete Cylinder Pipe (PCCP), a full set of technical parameters concerning PCCP design and cathodic protection, which also comply with China's regulatory system and material standards, were established. A quality control standard was set up concerning the installation of ultra large diameter PCCP in ditches and tunnels. An array of pioneering technologies have been developed, including test probes for the cathodic protection of PCCP, materials and processes of mechanized spray of PCCP external anti-corrosive coating, installation of ultra large diameter PCCP in ditches using goliath crane, installation processes and technologies for PCCP in tunnels, etc.

Construction site of pipeline laying.

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