CRCHI Mega Slurry TBM 'Jinghua' Assists the First Tunnel Section Breakthrough of Beijing East Sixth Ring Road Reconstruction Project

In September 2022, the Beijing East Sixth Ring Road Reconstruction Project reported another good news: the CRCHI mega slurry TBM ‘Jinghua’ smoothly reached the intermediate air shaft, marking the project’s achievement.

In September 2022, CRCHI mega slurry TBM Jinghua smoothly reached the intermediate air shaft in the Beijing East Sixth Ring Road Reconstruction Project

The maximum excavation diameter of the slurry TBM Jinghua is 16.07 m, the length of the whole machine is 150 meters, and total weight is 4300 tons. Jinghua, which is the largest shield machine in China, adopts a series of targeted optimal design and system integration, such as the fourth-generation accessible cutter exchange technology, telescopic main drive, extreme high pressure auto-compensation, large power slurry circulation system, and synchronous double-liquid grouting.

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