Core Points - The "Cangyuan" shield machine, developed by China Communications Tunnel Bureau, has commenced its excavation phase for the Haitaichangjiang Tunnel A4 project, marking a significant advancement in high-end tunnel construction equipment in China [1] - The Haitaichangjiang Tunnel spans 39.07 kilometers, connecting Haimen District in Nantong City to Taicang City in Suzhou, and is designed to alleviate traffic flow from the Sutong Yangtze River Bridge [1] - The "Cangyuan" shield machine features a diameter of 16.66 meters, a total length of 176 meters, and weighs over 5,650 tons, making it the largest slurry balance shield machine independently developed in China [1] - The project integrates three core technologies, including a "digital brain" for intelligent control, "smart blade teeth" technology for efficient excavation, and a globally innovative "smart heart" active protection system [1] - The Haitaichangjiang Tunnel is a key project in the "Yangtze River Main Line Cross-River Channel Layout Plan (2020-2035)," aimed at enhancing cross-river transportation capabilities and promoting the integration of urban clusters along the river [1]

Core Points - The project "Cangyuan" shield machine, constructed by China Communications Tunnel Bureau, has officially commenced its tunneling phase on August 11 [1] - The Hai-Tai Yangtze River Tunnel spans a total length of 39.07 kilometers, connecting Haimen District in Nantong, Jiangsu, to Taicang City in Suzhou, Jiangsu [1] - The "Cangyuan" shield machine is 176 meters long, weighs over 5,650 tons, and has a tunneling diameter of 16.66 meters, representing China's independent research and development in slurry balance shield machines [1] Technology and Innovation - The "Cangyuan" shield machine integrates three core technologies to address the challenges of ultra-long distance, large diameter, high water pressure, and deep burial [1] - It features a "digital brain" for intelligent control, "smart blade" technology to overcome efficient tunneling bottlenecks, and the world's first "smart heart" active protection system [1] - The collaborative application of diverse technologies provides dynamic safety assurance for complex working conditions characterized by "long, large, high, and deep" [1]

Core Viewpoint - The article highlights the transformation of the Fuzhou Port's Luoyuan Bay area into a "star-rated green port," showcasing significant advancements in environmental sustainability and operational efficiency through the integration of clean energy and smart technology [1][2][3] Group 1: Green Port Development - The Fuzhou Port's Luoyuan Bay area has become the first public bulk cargo terminal in Fujian to receive the "star-rated green port" title, achieving a green transportation ratio of 83% [1] - Over 10 million tons of coal were transported from the Luoyuan Bay area to power plants in Fujian and Jiangxi in the first half of the year, supporting regional industrial production and energy needs [1] - The port has implemented three major initiatives: integrated energy and environmental management, optimization of clean energy structure, and ecological restoration through afforestation [1] Group 2: Smart Management and Monitoring - The port's dispatch command center features a smart display that shows real-time operational status, integrating environmental monitoring and energy consumption data [2] - A closed-loop management mechanism has been established, allowing for automatic alerts and responsive measures when pollution levels exceed thresholds [2] - The use of smart technologies, such as remote-controlled cranes and automated loading systems, has significantly improved operational efficiency and safety [2] Group 3: Clean Energy Adoption - The port has transitioned to clean energy, with shore power facilities enabling "zero emissions" during vessel docking; shore power consumption reached 265,000 kWh in the first half of the year, a 101% increase year-on-year [2] - The application of new energy machinery has reduced noise levels by 30% and decreased diesel consumption by over 1,000 tons annually [2] Group 4: Ecological Restoration - The "Kemen Oasis" project at the Huadian Storage and Transportation Terminal has created a green landscape that combines scenic pathways, industrial exhibitions, and waste utilization areas, enhancing the port's ecological appeal [2] - The transformation of the Huadian Storage and Transportation Terminal serves as a model for upgrading traditional bulk cargo terminals and reflects Fuzhou Port's commitment to sustainable development [3] Group 5: Economic Contribution - Fuzhou Port's economic contribution is projected to reach 199.6 billion yuan in 2024, accounting for 14% of the city's GDP [3] - The port aims to enhance its hub capabilities, optimize service efficiency, and promote green and smart development, positioning itself as a world-class port [3]