Group 1 - The construction of Dalian Jinzhou Bay International Airport, the world's largest offshore airport, is progressing rapidly, with significant milestones achieved in various engineering aspects [1][2] - As of June 30, the project has completed 95.25% of its total engineering volume, with 19.15 square kilometers of land area formed, exceeding the planned earthwork by 2 million cubic meters [1] - The filling operation is advancing at an average speed of 200,000 cubic meters per day, with a record single-day filling of 263,300 cubic meters [1] Group 2 - Deep foundation treatment and pile foundation engineering are critical for ensuring the airport's structural integrity and seismic resistance, referred to as the "invisible backbone" of the airport [2] - In the first half of the year, significant progress was made in deep foundation treatment, including the completion of 710,000 square meters of dynamic compaction and 27,000 stone piles [2] - The airport terminal, considered the "heart" of the airport, has over 8,000 construction drawings and 17,000 engineering quantity lists completed, with plans to achieve 50% completion of the main underground structure by the end of the year [2]

从大连东联路沿西线通道驶向大连金州湾国际机场施工区，在距人工岛4公里的进场路上，百余辆 满载土石方等物料的大型运输车往来穿梭。人工岛内，旋挖机挥舞长臂，推土机全速运转，3000余名建 设者与数百台大型设备协同作战。 "五一"假期，记者深入大连金州湾国际机场项目现场，实地感受这个在建的全国首个、世界最大海 上机场的建设氛围。 据金州湾国际机场航站楼桩基项目负责人黄守乐介绍，历经192天昼夜施工，航站楼核心区桩基工 程已提前完工，1177根平均长度78米、每根重约50.8万斤的大直径超长嵌岩桩已精准嵌入海床。"这些 比孙悟空金箍棒重近40倍的深桩，就像一根根'定海神针'，为航站楼地面主体工程开工提供坚实保 障。"黄守乐说。 作为国家"十四五"规划102项重大建设项目、辽宁省统筹发展和安全重大工程之一，大连金州湾国 际机场项目在拉满建设进度条的同时，将工程质量和安全性置于首位。记者了解到，机场航站楼及楼前 高架桥桩基础工程总面积20万平方米，施工过程中，每台桩基设备安装传感器，施工数据实时传输预 警。针对复杂地质情况，采用一桩一勘提前判别孔内地质状况，确保基岩质量达标。每根桩基按编号排 序并生成专属二维码，扫码即可 ...

Core Viewpoint - Nanjing is set to become the fourth city in China to have dual airports, following Shanghai, Beijing, and Chengdu, with the announcement of the operationalization of the civil function of the Ma'anshan Airport alongside the expansion of the Nanjing Lukou International Airport [5][8][21] Group 1: Nanjing's Dual Airport Development - Nanjing's Ma'anshan Airport, initially a military airport, will soon serve civil aviation, marking the city's entry into the "dual airport" era [5][8] - The Nanjing International Comprehensive Transportation Hub Development Plan (2024-2035) emphasizes the construction of the third phase of Lukou Airport and the activation of Ma'anshan Airport's civil functions [4][21] - The strategic positioning of Nanjing as an international comprehensive transportation hub is reinforced by its inclusion in the National Comprehensive Transportation Network Planning Outline [14][15] Group 2: Competitive Landscape in Aviation - The competition for aviation dominance among major cities in China is intensifying, with cities like Guangzhou, Nanjing, and Chongqing confirming their dual airport status [22] - Other cities such as Xi'an, Zhengzhou, and Hangzhou are also expressing intentions to develop second airports, although many are still in the planning stages [22] - The aviation capacity of Nanjing's Lukou Airport has seen a decline in passenger throughput rankings, dropping from 11th in 2019 to 15th in 2024, highlighting the urgency for Nanjing to enhance its aviation infrastructure [17][19] Group 3: Future Aspirations and Plans - Nanjing aims to establish itself as a global aviation hub, targeting a passenger throughput of 85 million and a cargo throughput of 850,000 tons by 2035 [21] - The city plans to attract major domestic airlines to set up bases and is considering the establishment of a local cargo airline to enhance its international cargo capabilities [21] - The broader context of aviation development in China indicates a focus on building world-class aviation enterprises and hubs, with a clear hierarchy of cities based on their aviation capabilities [26]