Group 1 - The core viewpoint of the news is the announcement of the third batch of "two heavy" construction projects for 2025, with a total investment of 800 billion yuan allocated to support 1,459 projects across various key sectors [2] - The "hard investment" aspect includes funding for ecological restoration in the Yangtze River basin, major transportation infrastructure along the Yangtze, new western land-sea corridors, high-standard farmland, major water conservancy projects, urban underground pipelines, and hospital ward renovations [2] - The "soft construction" aspect focuses on accelerating reforms and innovations in key areas, such as optimizing railway financing models along the Yangtze, establishing maintenance mechanisms for urban underground pipelines, and exploring new models for wind and solar energy combined with desertification control [2] Group 2 - A number of key engineering projects are being accelerated across various regions, contributing to high-quality economic and social development [3] - Significant progress is being made in transportation infrastructure, including the completion of the first sinking of the anchor caisson for the Han Nan Yangtze River Bridge, which will optimize the crossing layout of the Yangtze River [4] - The completion of the main structure of the passenger inspection building at the Heixiazi Island highway port is a part of a major national project that will enhance the efficiency of personnel and cargo customs clearance [4] - The West Yan'an High-speed Railway has completed track laying, significantly reducing travel time between Xi'an and Yan'an to about one hour [4] - The second phase expansion of Fuzhou Changle International Airport is progressing, with the new terminal and core areas expected to be completed by 2026 [4] - Water conservancy and energy infrastructure projects are also advancing, such as the completion of the first phase of the Tienzi Kou irrigation project, which will irrigate 3.715 million acres and supply water to 4.51 million people [5] - The Qinghai 330 kV Yushu second circuit project is entering the final acceptance stage, expected to enhance power supply reliability for over 400,000 residents in the pastoral areas [5]

6月4日，汉南长江大桥北岸锚碇沉井施工现场，80多名工人正在进行锚碇沉井下沉作 业，重达数百吨的预制钢筋部品通过巨型吊机，如积木般精准嵌入深达43米的沉井内。 建设中的汉南长江大桥 "这是世界公路工程第一大沉井，面积相当于14个篮球场，有15层楼高。"武汉交投汉南 桥项目公司工程部部长胡志红说，汉南长江大桥锚碇采用整体式沉井基础，面积近6000平方 米，首次下沉锚碇重约9.4万吨，沉井采用接高与下沉交替进行，目前已下沉深度5米。 编辑：李智恒 胡志红介绍，为抢抓主汛期来临前黄金建设期，工程日夜施工，采用大型沉井装配化建 造技术，在预制厂内将隔墙分块预制成半成品，现场逐块组拼成形，提升工业化建造水平。 目前，大桥两岸沉井均已启动下沉，南岸锚碇沉井下沉深度已达15.8米，计划年底全部完 工。 据介绍，汉南长江大桥及接线工程预计2027年建成通车，将打通武汉都市圈环线高速， 串起武汉、孝感、咸宁、鄂州、黄冈等城市，打造一小时通勤圈，推动武汉都市圈同城化进 程。 锚碇是一座大桥的"基石"，也是"定海神针"，由沉井和锚体组成，承担着固定桥梁缆索 的巨大拉力，沉井内有36个孔，结构类似方形蜂窝煤。 目前，武汉在建的第12 ...