大连金州湾国际机场填海工程主体完工 回填总量超2.8亿立方米

Core Viewpoint - The completion of the main reclamation project for Dalian Jinzhou Bay International Airport marks a significant milestone in China's offshore artificial island airport construction, showcasing advanced engineering capabilities and setting a precedent for similar projects in the country [1][4]. Group 1: Project Overview - Dalian Jinzhou Bay International Airport is located in the eastern sea area of Jinzhou Bay and is being constructed in two phases, with the first phase including two parallel runways of 3,600 meters and 3,400 meters, and a terminal building of 500,000 square meters, capable of accommodating an annual passenger throughput of 43 million, 550,000 tons of cargo, and 330,000 flight takeoffs and landings [2]. - The reclamation project has a total land area of approximately 20 square kilometers and involved a total fill volume exceeding 280 million cubic meters [1][2]. Group 2: Engineering Challenges and Innovations - The project faced multiple challenges, including thick soft soil at the seabed, complex geological conditions, variable meteorological and hydrological factors, and high ecological protection requirements [2]. - Innovative techniques were employed, such as the use of a coastal protection construction method to gradually build a 19-kilometer offshore barrier, allowing for precise control of fill height and area to the centimeter level [2][4]. - During peak construction, over 20 types of engineering vessels operated at sea alongside more than 1,100 large machines on land, achieving a maximum daily fill volume of 263,300 cubic meters [2]. Group 3: Future Implications - The successful completion of this project not only highlights China's top-tier technical strength in large-scale reclamation, marine ecological protection, and soft foundation treatment but also fills a technological gap in the construction of offshore artificial island airports [4]. - The airport's completion is expected to significantly contribute to Dalian's development as a Northeast Asia international shipping center, international logistics center, and regional financial hub, while actively promoting the Northeast land-sea corridor [4].