On December 25, China’s first independently developed and the world’s largest turbid-water air balanced compound Tunnel Boring Machine(TBM) (“Tianhe I”) manufactured by CCCC Tianhe Machinery and Equipment Manufacturing Co., Ltd. went offline, followed by a launch ceremony in Changshu, Jiangsu Province in the same day. Among attendees were Jiang Hongkun, member of the Standing Committee of the CPC Jiangsu Provincial Committee and secretary of the CPC Suzhou Municipal Committee; Xu Guang, chief engineer of the Ministry of Transport; and Chairman Zhou Jichang and Vice President Chen Yun of CCCC.
In a speech, Zhou noted the launch of “Tianhe I” has further improved the company’s equipment manufacturing level and contributed to CCCC’s efforts to become an internationally advanced shield manufacturer and promote the development of China’s shield manufacturing. He required CCCC Tianhe to take the opportunity to make full use of CCCC’s advantages in talent, equipment, science and technology, and R & D, to intensify localized development, to constantly occupy the commanding height of associated equipment manufacturing, thus making new greater contributions to the development of China’s equipment manufacturing.
With a diameter of 14.93m, a total weight of 4,500t, a driving speed of 5cm/min and a maximum daily driving capacity of 20m, “Tianhe I” is customized by CCCC Tianhe for the project of the cross-river tunnel on Weisan Road, Nanjing. The equipment integrates the world’s existing cutting-edge manufacturing technologies, has achieved major breakthrough in a series of key technologies, and owns 13 independent intellectual properties, of which five are original in the world and five original in the country. The machine perfectly meets the requirement for constructing the tunnel across the Yangtze River in complex geological conditions. All super large TBM previously used in the country were imported. According to estimate, compared to its overseas counterparts, “Tianhe I” is expected to save fabrication cost by some 15%, and reduce the cost of post maintenance and technical guidance by over 30%, thus effectively reducing the cost of production and maintenance. |
|
