Mounting ceremony of cutter head of "Jianghaihao" shield tunneling machine held in Jiangsu

This photo taken on Jan. 22, 2025 shows the cutter head of "Jianghaihao" shield tunneling machine during its mounting ceremony at a construction site of Haitai Yangtze River Tunnel in Nantong City, east China's Jiangsu Province. The mounting ceremony of the cutter head of "Jianghaihao" shield tunneling machine, with a diameter of 16.64 meters, was held here on Wednesday. The 39.07-km Haitai Yangtze River Tunnel links the Haimen District of Nantong City with Taicang of Suzhou City, both in Jiangsu. (Xinhua/Ji Chunpeng)

An aerial drone photo taken on Jan. 22, 2025 shows the cutter head of "Jianghaihao" shield tunneling machine being hoisted at a construction site of Haitai Yangtze River Tunnel in Nantong City, east China's Jiangsu Province. The mounting ceremony of the cutter head of "Jianghaihao" shield tunneling machine, with a diameter of 16.64 meters, was held here on Wednesday. The 39.07-km Haitai Yangtze River Tunnel links the Haimen District of Nantong City with Taicang of Suzhou City, both in Jiangsu. (Xinhua/Yang Lei)

This photo taken on Jan. 22, 2025 shows the cutter head of "Jianghaihao" shield tunneling machine at a construction site of Haitai Yangtze River Tunnel in Nantong City, east China's Jiangsu Province. The mounting ceremony of the cutter head of "Jianghaihao" shield tunneling machine, with a diameter of 16.64 meters, was held here on Wednesday. The 39.07-km Haitai Yangtze River Tunnel links the Haimen District of Nantong City with Taicang of Suzhou City, both in Jiangsu. (Xinhua/Yang Lei)

An aerial drone photo taken on Jan. 22, 2025 shows the cutter head of "Jianghaihao" shield tunneling machine during its mounting ceremony at a construction site of Haitai Yangtze River Tunnel in Nantong City, east China's Jiangsu Province. The mounting ceremony of the cutter head of "Jianghaihao" shield tunneling machine, with a diameter of 16.64 meters, was held here on Wednesday. The 39.07-km Haitai Yangtze River Tunnel links the Haimen District of Nantong City with Taicang of Suzhou City, both in Jiangsu. (Xinhua/Ji Chunpeng)

An aerial drone photo taken on Jan. 22, 2025 shows the cutter head of "Jianghaihao" shield tunneling machine being hoisted at a construction site of Haitai Yangtze River Tunnel in Nantong City, east China's Jiangsu Province. The mounting ceremony of the cutter head of "Jianghaihao" shield tunneling machine, with a diameter of 16.64 meters, was held here on Wednesday. The 39.07-km Haitai Yangtze River Tunnel links the Haimen District of Nantong City with Taicang of Suzhou City, both in Jiangsu. (Xinhua/Yang Lei)

An aerial drone photo taken on Jan. 22, 2025 shows the cutter head of "Jianghaihao" shield tunneling machine being hoisted at a construction site of Haitai Yangtze River Tunnel in Nantong City, east China's Jiangsu Province. The mounting ceremony of the cutter head of "Jianghaihao" shield tunneling machine, with a diameter of 16.64 meters, was held here on Wednesday. The 39.07-km Haitai Yangtze River Tunnel links the Haimen District of Nantong City with Taicang of Suzhou City, both in Jiangsu. (Xinhua/Yang Lei)

An aerial drone photo taken on Jan. 22, 2025 shows the cutter head of "Jianghaihao" shield tunneling machine during its mounting ceremony at a construction site of Haitai Yangtze River Tunnel in Nantong City, east China's Jiangsu Province. The mounting ceremony of the cutter head of "Jianghaihao" shield tunneling machine, with a diameter of 16.64 meters, was held here on Wednesday. The 39.07-km Haitai Yangtze River Tunnel links the Haimen District of Nantong City with Taicang of Suzhou City, both in Jiangsu. (Xinhua/Ji Chunpeng)

This photo taken on Jan. 22, 2025 shows the cutter head of "Jianghaihao" shield tunneling machine during its mounting ceremony at a construction site of Haitai Yangtze River Tunnel in Nantong City, east China's Jiangsu Province. The mounting ceremony of the cutter head of "Jianghaihao" shield tunneling machine, with a diameter of 16.64 meters, was held here on Wednesday. The 39.07-km Haitai Yangtze River Tunnel links the Haimen District of Nantong City with Taicang of Suzhou City, both in Jiangsu. (Xinhua/Ji Chunpeng)

An aerial drone photo taken on Jan. 22, 2025 shows the cutter head of "Jianghaihao" shield tunneling machine during its mounting ceremony at a construction site of Haitai Yangtze River Tunnel in Nantong City, east China's Jiangsu Province. The mounting ceremony of the cutter head of "Jianghaihao" shield tunneling machine, with a diameter of 16.64 meters, was held here on Wednesday. The 39.07-km Haitai Yangtze River Tunnel links the Haimen District of Nantong City with Taicang of Suzhou City, both in Jiangsu. (Xinhua/Ji Chunpeng)

This photo taken on Jan. 22, 2025 shows the cutter head of "Jianghaihao" shield tunneling machine at a construction site of Haitai Yangtze River Tunnel in Nantong City, east China's Jiangsu Province. The mounting ceremony of the cutter head of "Jianghaihao" shield tunneling machine, with a diameter of 16.64 meters, was held here on Wednesday. The 39.07-km Haitai Yangtze River Tunnel links the Haimen District of Nantong City with Taicang of Suzhou City, both in Jiangsu. (Xinhua/Yang Lei)

This photo taken on Jan. 22, 2025 shows the cutter head of "Jianghaihao" shield tunneling machine at a construction site of Haitai Yangtze River Tunnel in Nantong City, east China's Jiangsu Province. The mounting ceremony of the cutter head of "Jianghaihao" shield tunneling machine, with a diameter of 16.64 meters, was held here on Wednesday. The 39.07-km Haitai Yangtze River Tunnel links the Haimen District of Nantong City with Taicang of Suzhou City, both in Jiangsu. (Xinhua/Yang Lei)

An aerial drone photo taken on Jan. 22, 2025 shows the cutter head of "Jianghaihao" shield tunneling machine during its mounting ceremony at a construction site of Haitai Yangtze River Tunnel in Nantong City, east China's Jiangsu Province. The mounting ceremony of the cutter head of "Jianghaihao" shield tunneling machine, with a diameter of 16.64 meters, was held here on Wednesday. The 39.07-km Haitai Yangtze River Tunnel links the Haimen District of Nantong City with Taicang of Suzhou City, both in Jiangsu. (Photo by Xu Congjun/Xinhua)