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