Core Viewpoint - The successful launch of the "Red Boat" shield machine for the Suzhou East Tunnel marks a significant milestone in the construction of the Tong-Ning High-Speed Railway, showcasing advancements in intelligent tunneling technology and green construction methods [1][2][3] Group 1: Project Overview - The Suzhou East Tunnel is a key control project of the Tong-Ning High-Speed Railway, with a total length of 2289.7 meters and a design speed of 350 kilometers per hour [1] - The tunnel features a single-hole double-track design and employs both shield tunneling and open-cut construction methods [1] - The shield section of the tunnel is 1586.7 meters long, utilizing a domestically produced shield machine with a diameter of 14.82 meters [1] Group 2: Technological Innovations - The "Red Boat" shield machine is customized for the unique geological conditions, integrating an "intelligent tunneling brain" system for autonomous decision-making and operation [2] - The machine's capabilities include intelligent tunneling, smart assembly of curved segments, intelligent sensing, and advanced geological forecasting [2] - A dual-liquid slurry system for synchronous injection of "cement-water glass" allows for precise control of surface and segment uplift during tunneling [2] Group 3: Environmental Considerations - The project adopts a modular structure for slurry treatment, combining various technologies for efficient and environmentally friendly construction [2] - The construction method aims for "zero leakage, zero discharge, and zero pollution," addressing challenges in tunneling through fine-grained geological conditions [2] Group 4: Strategic Importance - The Tong-Ning High-Speed Railway is a crucial part of China's "eight vertical and eight horizontal" high-speed rail network, enhancing connectivity in the Yangtze River Delta region [3] - The new line spans 301 kilometers and includes 10 stations, with a construction period of five years [3] - Upon completion, it will connect with multiple existing rail lines, facilitating travel and promoting high-quality development in the region [3]

Group 1 - The "Linghao" shield machine, the world's largest diameter high-speed rail shield machine, has set a world record by achieving a monthly excavation of 718 meters [1] - The National Key Laboratory for Tunnel Boring Machines and Intelligent Operation and Maintenance, established by China Railway Tunnel Bureau, China Railway Engineering Equipment Group, and Zhengzhou University, is the only national public research platform in the field of tunnel boring machines [1] - The laboratory focuses on research in three main areas: efficient rock breaking and field change control, extreme working condition equipment design and manufacturing, and intelligent excavation and operation and maintenance [1] Group 2 - China is the world's largest country in terms of the number of tunnels, construction scale, and development speed [2] - The team has developed the industry's first shield TBM engineering big data platform, laying the foundation for the transformation of intelligent construction in shield TBM tunnels [2] - The intelligent construction system integrates nine major technologies, significantly enhancing engineering efficiency and quality, representing cutting-edge technology in China's high-speed rail tunnel construction [2] Group 3 - The research team consists of 47 members, with 33 under the age of 35, emphasizing the role of young talents in technological innovation [3] - The laboratory has established youth strike teams focused on intelligent excavation and geological disaster perception and prevention in TBM tunnels [3] - The team aims to contribute to high-quality development in tunnel intelligent construction through technological innovation, aligning with national goals for technological self-reliance [3]