World's largest-diameter shield tunneling machine for high-speed rail assembled

2024-03-28 Editor : Lu Yan ECNS App Download

Weighing 440 tonnes, the cutter of a shield tunneling machine was smoothly hoisted from the ground to the well under the coordination of two crawler cranes on Wednesday in Shanghai. 

The cutter and the main engine were accurately docking, and the combination of the cutter and the main engine was successfully completed.

It marked the assembly of the shield tunneling machine "Linghang" entering the final stage. It will be used in a tunnel across the Yangtze River for the Shanghai-Chongqing-Chengdu high-speed railway. 

The shield tunneling machine has a total length of 128 meters and weighs 4,000 tonnes. The shield tunneling machine is composed of a cutter, a main engine, an equipment bridge and a 4-section trailer.

The cutter has a diameter of 15.4 meters, and the machine is the world's largest-diameter shield tunneling machine for high-speed railway. Starting from Chongming District in Shanghai, the shield tunneling machine will drill 11,325.5 meters across the Yangtze River to Taicang City in Jiangsu Province. 

(Reported by Pu Fan; Edited by Jiang Lu)



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