Core Viewpoint - The successful installation of the first offshore prefabricated steel box girder for the Xiamen section of the Xiamen-Jinmen Bridge marks a significant milestone in the project's construction, transitioning into the core structural phase of the bridge [1][3]. Group 1: Project Overview - The Xiamen section of the Xiamen-Jinmen Bridge spans approximately 19.6 kilometers and includes 92 large prefabricated steel box girders, which serve as the "steel backbone" of the bridge [2]. - The installed steel box girder measures 142.5 meters in length, 44 meters in width, and 4.5 meters in height, with a total weight of 4,586 tons [2]. Group 2: Construction and Technology - The construction unit, Xiamen Road and Bridge Engineering Investment Development Co., Ltd., has established a comprehensive support system for the manufacturing and installation process, following a complete technical route from factory prefabrication to on-site installation [2]. - The project team adheres to a green development philosophy, utilizing a modular factory-based assembly process that enhances offshore operational efficiency by approximately four times while minimizing impacts on marine ecology [4]. Group 3: Strategic Importance - Upon completion, the Xiamen-Jinmen Bridge will integrate with Xiamen Xiang'an International Airport and the Xiamen-Jinmen shipping route, creating a new multi-dimensional transportation network for cross-strait connectivity, which is significant for exploring new paths for cross-strait integrated development [4].

Economic Development and Trade Cooperation - Jiangyin's Party Secretary Shen Qiang led a delegation to Greece and Germany from October 27 to November 1 to enhance economic and trade exchanges, deepen industrial cooperation, and promote Jiangyin's opening-up [1] - On November 6, Jiangyin organized a delegation to Shanghai for investment promotion and to connect with quality resources and industry leaders, aiming to empower new productive forces [1] - A special meeting of the Taizhou Municipal Committee emphasized Jiangyin's role as a key area for reform and opening-up, aiming for high-quality development through major projects and modern infrastructure [1] Port and Transportation Development - Jiangyin Heavy Industry Co., Ltd. manufactured the first steel box girder for the Ningbo-Zhoushan Port project, showcasing its capabilities as a major steel structure production base [2] - Jiangyin is focusing on building a comprehensive transportation hub and enhancing the synergy between port, industry, and trade, with significant projects underway to support this development [2] Strategic Positioning and Infrastructure - Jiangyin is strategically located at the intersection of the Yangtze River Golden Waterway and the Yangtze River Delta Economic Circle, serving as a key node for the Belt and Road Initiative and the Shanghai International Shipping Center [3] - Jiangyin Port, established in 2012 and becoming a major port by 2015, has ranked among the top twenty ports in China by 2023, leveraging its advantages in industrial foundation and port resources [3] Industrial Development and Innovation - Jiangyin is enhancing its industrial ecosystem by focusing on high-end manufacturing, particularly in stainless steel processing, with significant investments and projects underway [5][6] - The city is developing four leading industries and five emerging industries, aiming to create a modern industrial system and establish itself as a new high ground for advanced manufacturing in the Yangtze River Delta [6][7] Regional Integration and Collaboration - Jiangyin is actively promoting regional integration with Suzhou and Shanghai, focusing on collaborative projects and leveraging its manufacturing advantages to enhance innovation and resource sharing [8][9] - The city is implementing cross-river transportation projects to strengthen its connectivity within the Yangtze River Delta, aiming to attract advanced technologies and investments from Shanghai [9]

Group 1 - The successful installation of the steel box girder marks a significant breakthrough in the construction of the Xiu Highway project, specifically at the Xiu Wu East Hub interchange [1][3] - The steel box girder weighs 303 tons and spans 37.3 meters, making it the longest and heaviest segment in the project [3] - The installation utilized a 650-ton large crawler crane, highlighting the complexity and scale of the operation [3] Group 2 - The project team coordinated closely with highway police to conduct multiple on-site simulations, ensuring effective traffic management during the installation [3] - A safety management team was established to monitor the construction site 24/7, ensuring safety during the temporary road closures [3] - Structural reinforcements were made to the lifting ears of the steel box girder to mitigate deformation risks during installation, demonstrating a commitment to quality control [3] Group 3 - The successful installation is seen as a pivotal moment that overcomes the most complex technical and safety challenges of the project [3] - The project team aims to efficiently connect subsequent construction plans for the Xiu Highway, laying a solid foundation for the early completion of the highway [3]