China Railway 14th Bureau Beijing East Sixth Ring Road Project. Since its inception, the domestically produced 16 meter diameter shield tunneling machine Jinghua has steadily excavated, successfully crossing multiple risk sources such as the Happy Song

Mar 11, 2026

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China Railway 14th Bureau Beijing East Sixth Ring Road Project. Since its inception, the domestically produced 16 meter diameter shield tunneling machine "Jinghua" has steadily excavated, successfully crossing multiple risk sources such as the "Happy Song" commercial complex. It has achieved monthly excavation of 368 meters and daily excavation of 24 meters, with all cutting tools provided by Tianyou Tunnel! Wishing you a speedy connection

The right line section of Changchun Metro Line 2, Area 4, constructed by China Railway Construction Corporation, was smoothly connected without tool replacement throughout the entire process. All tools were provided by Shandong Tianyou Tunnel Engineering

Congratulations to Shandong Tianyou Tool and Shield Tail Brush for helping the smooth connection of the shield tunnel section on the left line of China Railway 19th Bureau

China Railway 14th Bureau Beijing East Sixth Ring Road Project. Since its inception, the domestically produced 16 meter diameter shield tunneling machine Jinghua has steadily excavated, successfully crossing multiple risk sources such as the Happy Song

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