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On July 17, the domestic 14-meter super-diameter shield machine “Pioneer”, built by the 14th Bureau of China Railway and Railway Construction Heavy Industries, successfully launched in Changsha, Hunan, and will be used for the first domestic ultra-large diameter shield tunnel under Taihu Lake: the construction of the Taihu Lake section of the Wuxi-Yixing intercity rail transit project. This is the second batch of shield machines manufactured for the tunnel after the first batch of shield machines “Xiyi” and “Siwang” went offline.

Zhitongcaijing·07/17/2026 12:09:06
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On July 17, the domestic 14-meter super-diameter shield machine “Pioneer”, built by the 14th Bureau of China Railway and Railway Construction Heavy Industries, successfully launched in Changsha, Hunan, and will be used for the first domestic ultra-large diameter shield tunnel under Taihu Lake: the construction of the Taihu Lake section of the Wuxi-Yixing intercity rail transit project. This is the second batch of shield machines manufactured for the tunnel after the first batch of shield machines “Xiyi” and “Siwang” went offline.