Core Viewpoint - The commencement of the "Cangyuan" shield machine marks the start of the left line excavation for the Haitai Yangtze River Tunnel, entering the dual-line tunneling phase, which is a significant milestone for the project [2][4]. Project Overview - The Haitai Yangtze River Tunnel spans a total length of 39.07 kilometers, with the left line shield tunnel measuring 9,327 meters, designed to accommodate a six-lane expressway with a speed limit of 100 kilometers per hour [2][4]. - The project connects Haimen District in Nantong City to Taicang City in Suzhou, strategically located at the Yangtze River estuary [2][4]. Technical Specifications - The "Cangyuan" shield machine has a maximum excavation diameter of 16.66 meters, a total length of 176 meters, and weighs over 5,650 tons, making it the largest independently developed earth pressure balance shield machine in China [4]. - The right line of the tunnel began excavation on April 9 of this year and has progressed 1,300 meters [4]. Strategic Importance - The Haitai Yangtze River Tunnel is a key project in the "Yangtze River Main Line Crossing Channel Layout Plan (2020-2035)" and is prioritized in Jiangsu's "14th Five-Year Plan" for cross-river transportation [4]. - The completion of the project is expected to significantly contribute to the integration of the Yangtze River Delta region and the development of the Yangtze Economic Belt, enhancing the layout of crossing channels along the Yangtze River [4].
双线掘进!海太长江隧道左线今天盾构机始发
Yang Shi Xin Wen·2025-08-11 09:08