2025年12月8日，北沿江高铁崇启公铁长江大桥非通航孔钢梁顶推最后7米圆满完成，并与日前顶推到位的主通航孔南边跨钢梁在主桥1号墩"胜利会师"， 它标志着我国长江上最长、最重的钢梁顶推施工工艺创造了一项新的纪录,也为我国同类型桥梁施工技术提供了成功经验。 崇启公铁长江大桥地处长江入海口，受河床地质条件和水文潮汐等因素的影响，大桥南侧江中的非通航孔桥11孔钢梁架设采用了杆件散拼、吊装、顶推施 工工艺，非通航孔桥钢梁总长1205.4米，钢梁总重3.89万吨，分86个节间，进行13轮(次)顶推。主通航孔992米，以3、4号墩为中心，各有两个边跨，架设 钢梁采用整节段吊装、焊接、顶推施工工艺，北边跨14个节段，顶推后与北引桥接壤；南边跨15个节段，顶推后与非通航孔钢梁接壤，此次是全桥最后一 次顶推，长度7米。后续将进入中跨3、4号墩钢梁吊装施工，一边6吊，与斜拉索安装和桥面板铺设同步进行，预计明年五一前跨中合龙。 崇启公铁长江大桥是沪渝蓉高铁控制性工程，采用无砟轨道设计，精度控制要求非常高，钢梁拼装线型控制相当严格，顶推设备数量多、同步控制难度 大。项目团队应用自主研发的多点自适应同步顶推控制系统，不断探索实践，通过 ...

西气东输、南水北调、西电东送，各地在区域协作中激活潜能，一个个增长极、增长带拔节生长、积厚 成势，为高质量发展注入不竭动力 挺进改革深水区还有"腊子口"要闯、建设统一大市场还有"中梗阻"要破、实现共同富裕还有"硬骨头"要 啃，攻克卡脖子难题、应对外部环境变化、推进乡村全面振兴，奋斗之志一以贯之，初心始终如一、坚 如磐石 贵州多山，一下飞机，便见远处峰峦如聚、云涛如怒，群山以排闼之势涌向眼底。山，是贵州的骨架， 也一度阻隔了发展的脚步。有山，便要有路。一路"黔"行，在这片雄奇的土地上，一条条"路"令人印象 深刻、思绪飘远。 地上的路，承载人民对美好生活的热切向往。在贵州，占地92.5%的山地丘陵挡不住人们前行的步伐， 3万多座桥梁让天堑变通途。在汹涌的乌江天险上凿岩设墩，江界河大桥刻印奋斗足迹；高强钢丝编 织"空中脊梁"，花江峡谷大桥见证科技创新；打造桥旅融合服务区，累计接待游客超520万人次，平塘 大桥映照建设智慧……一条条路、一座座桥，缝合大山褶皱、抚平地球"裂痕"，它们是交通线，更是经 济线、幸福线。 世上本无路，是理想的炬火，点燃了开路的勇气，照亮了人间正道。风过娄山关，声似军号。遵义会议 的灯火照亮沉 ...

央视网消息：日前，我国多项重大工程取得重大突破，推动经济高质量发展。 全球海上风电装机中国占比超50% 《全球海上风电产业链发展报告2025》近日发布。目前，全球海上风电的装机容量约为8300万千瓦，其中，中国占比超过50%。 今年以来，我国海上风电新增并网容量超过350万千瓦，连续五年居全球首位。 广西南宁抽水蓄能电站首轮蓄水完成 国家"十四五"重大工程——广西南宁抽水蓄能电站首轮蓄水12月6日完成，4台30万千瓦机组将于本月全部投产，每年抽水发电量 可达22.6亿千瓦时，减少二氧化碳排放220万吨。 湖北汉南长江大桥核心结构完工 12月5日，湖北汉南长江大桥南锚碇沉井顺利下沉至设计标高。作为悬索桥的核心结构，南锚碇沉井重达16万吨，分8节浇筑成 型，直接承载主缆传递的巨大拉力。作为武汉都市圈环线高速的控制性工程，汉南长江大桥建成通车后，将进一步完善区域高速公路 网络布局，优化长江过江通道体系。 ...

原标题：浙江：双屿门特大桥先导索成功过海 12月6日拍摄的双屿门特大桥六横侧索塔施工现场（无人机照片）。 新华社记者 黄宗治 摄 【1】 【2】 【3】 【4】 【5】 12月6日，由中国铁建大桥局、中国铁建港航局承建的浙江宁波舟山港六横公路大桥二期工程双屿门特 大桥先导索顺利完成过海架设作业，意味着大桥猫道施工正式拉开序幕，为后续牵引索、猫道承重索等 牵引架设奠定坚实基础。 六横公路大桥二期工程由多座桥梁及连接线构成高速公路通道，包含双屿门特大桥、青龙门特大桥两座 跨海大桥。项目建成后将进一步完善宁波舟山港海陆联动集疏运网络，推进浙江舟山群岛新区建设和浙 江海洋经济发展。 ...

央视新闻消息，近日，中国在能源、工程与交通等多领域取得世界级成就。从海上风电新增并网容量连续 五年居全球首位，到独塔地锚式回转缆悬索桥实现世界首创，再到刷新纪录的全球最长单程民航航线，勾 勒出中国高质量发展的强劲脉搏。 我国海上风电新增并网容量 连续五年居全球首位 记者从全球风能理事会获悉，《全球海上风电产业链发展报告2025》正式发布。《报告》显示，截至2025 年9月底，我国海上风电累计并网容量达4461万千瓦，其中，海上风电新增并网容量为350万千瓦，连续五 年稳居全球首位。 12月4日凌晨2时19分，中国东航MU745航班搭载着282名旅客从上海浦东国际机场起飞，经奥克兰最终到 达阿根廷布宜诺斯艾利斯。 世界首创独塔地锚式 回转缆悬索桥通车在即 12月5日下午，世界首创独塔地锚式回转缆悬索桥——济新高速黄河三峡大桥顺利完成荷载试验，标志着 大桥主体具备正式通车条件。 黄河三峡大桥地处河南济源与新安交界的王屋山-黛眉山世界地质公园，桥梁主跨555米，一跨跨越黄河小 浪底库区。作为济源至新安高速公路的控制性工程，大桥建成通车后，两岸通行时长将由两小时缩短至二 十分钟。济新高速建成后将与新伊、菏宝、连霍等高 ...

Group 1 - The construction of the first phase of the north anchor of the Zhang Jinggao Yangtze River Bridge has been completed, marking the full completion of the first phase for both the north and south anchor projects, allowing the bridge construction to enter the upper structure construction phase, including catwalk installation and main cable installation [1] - The anchor is described as the "stabilizing force" for large bridges, playing a crucial role in ensuring the overall structural stability of the bridge [1] - The north anchor of the bridge employs a left-right symmetrical split-type triangular frame gravity anchor, with a foundation made of caisson, and features two split-type anchor bodies to bear the main cable tension [1] Group 2 - The first phase of the project includes the construction of the anchor foundation, anchor body, anchoring system, and some auxiliary facilities [1] - After the installation of the upper structure's main cable is completed, the project will transition to the second phase, focusing on the construction of the top slab and front wall of the front anchor chamber, as well as the completion of remaining auxiliary works [1]

长海大桥施工现场 在大连市普兰店区与长海县之间的海域上，一项备受瞩目的超级工程正在如火如荼地推进——它就是国道长 长线（大连市长海大桥工程）。尤为引人注目的是，其跨海段长度达到约19公里，标志着我国高纬度寒冷海域桥 梁建设技术迈向新的高度。 该项目路线全长约25.5公里，由中建股份承建，北起鹤大高速皮口收费站，南至长海县大长山岛，如同一条 巨龙蜿蜒跨越海湾。作为《国家公路网规划》中G507的重要组成部分，这座大桥的建设将首次实现长海县与大陆 的陆路直连，从根本上破解制约海岛发展的交通瓶颈。 一座用于主桥施工的钢结构栈桥修建已延伸至海域中部 "大桥穿越海域环境复杂，为此该工程采用了多项适应性技术。"大连市长海大桥工程项目指挥部执行指挥长 高杰介绍，该工程主通航孔设计为跨度760米的双塔斜拉桥，以满足航道需求。路线设计特意绕避生态敏感区，并 预留专用廊道穿越海域生态保护区，力求实现工程建设与海洋环境保护的协调统一。其庞大的体量与复杂的水文 条件，对施工组织、材料耐候性和基础稳定性都提出了极高要求，堪称东北地区交通建设的标志性工程。 长海大桥的建成，远不止于创造一项"长度纪录"。它将成为大连东部"皮杨-长海"旅游区 ...

Group 1: Infrastructure and Investment - Major projects in various regions are progressing, which is crucial for expanding effective investment and supporting infrastructure investment growth [1] - Experts anticipate continued policy support for "two heavy" projects, which will further bolster economic stability [1] Group 2: Automotive Industry - The automotive market is experiencing a "promotion frenzy" with nearly 20 car manufacturers offering purchase tax subsidies to consumers who lock in orders by the end of 2025 [2] - This initiative is a response to upcoming adjustments in purchase tax and marks the beginning of year-end sales efforts by car companies [2] Group 3: Fund Management and Market Trends - In the fourth quarter, mutual funds are implementing purchase limits to manage large inflows and ensure stable operations [3] - New funds are also controlling their fundraising scales amid increasing uncertainties in the market [3] - The launch of "China's first domestic GPU" by Moore Threads on the STAR Market is seen as a significant step for both the company and the domestic computing power industry [3] Group 4: Commercial Aerospace - The domestic commercial aerospace sector is witnessing a dual breakthrough in technology and scale, with significant developments showcased at the 2025 Commercial Aerospace Forum [4] - The opening of major space projects to commercial entities is creating unprecedented opportunities in the industry [4] Group 5: Capital Market Support - Local governments are increasingly implementing measures to support capital market development, focusing on nurturing listed companies and facilitating financing for tech firms [5] - Policies from provinces like Shaanxi, Guangdong, and Zhejiang aim to guide capital towards innovation and emerging industries [5] Group 6: Phosphate Industry - Phosphate rock prices remain high due to a sustained price increase in chemical products, with market prices reported at 1016 CNY/ton for 30% grade [6] - Companies like Batian and Xingfa are actively acquiring phosphate resources, indicating an expansion in production capacity [6] Group 7: AI Glasses Market - The smart glasses market is experiencing a surge with new product launches from companies like Li Auto and Alibaba, indicating a growing interest in AI-integrated eyewear [7] - This trend is expected to have a profound impact on the AI glasses supply chain from both supply and demand perspectives [7] Group 8: Private Equity and Market Research - Private equity firms are actively conducting research to identify new investment opportunities, with a total of 1.3 million research sessions reported in the fourth quarter [8] - The electronics, healthcare, and integrated circuit sectors are among the most researched areas by private equity firms [8] Group 9: Lithium Iron Phosphate Industry - The lithium iron phosphate industry is seeing price increases as leading companies plan to raise processing fees by 3000 CNY/ton starting in 2026 [9] - The industry is expected to transition to a new phase focused on technology and value, moving away from intense competition [9] Group 10: Photovoltaic Industry - The photovoltaic supply chain is experiencing a decline in production across multiple segments, attributed to insufficient end-user demand [9] - Production reductions include a 0.96% decrease in polysilicon and a 15.95% decrease in silicon wafers for December [9]

Group 1 - Major projects are crucial for expanding effective investment and supporting economic growth, with recent successful completions in various regions indicating progress [1][2] - The National Development and Reform Commission (NDRC) has allocated 700 billion yuan and 800 billion yuan in special bonds for hard investment projects in the past two years, supporting 1465 and 1459 projects respectively [2] - Experts anticipate that the support for major projects will increase, with a focus on new industries such as biomedicine and low-altitude economy, which are expected to contribute to effective investment [2][3] Group 2 - Policy support is essential for advancing major project construction, with increased special bonds and new policy financial tools providing substantial funding [2][3] - The upcoming year is expected to see a rise in infrastructure investment growth, driven by early planning and sufficient resource guarantees for major projects [4][5] - The government aims to enhance investment efficiency by addressing issues of low returns on investment in certain sectors, ensuring that funds generate greater economic and social value [3][4] Group 3 - The introduction of measures to encourage private capital participation in major projects is expected to broaden investment pathways, allowing for over 10% private ownership in qualifying projects [3] - The anticipated increase in infrastructure investment is seen as a key support for economic stability, with new projects expected to complement traditional infrastructure [5]

【编者按】千万IP创科普，共筑科技强国梦。为普及科学知识，弘扬科学精神，提高全民科学文化素 质，助力实现高水平科技自立自强，中国科协科普部与人民网联合策划推出"见证科技之路"主题报道， 聚焦国家科技战略政策、重要科技奖项、"卡脖子"关键核心技术等，深入基层一线开展采访调研，推出 一批生动鲜活的科普精品，大力弘扬科学家精神，为建设科技强国汇聚磅礴力量。 来源：人民网-科普中国 在青海高原的崇山峻岭间，一座主跨达265米的上承式钢管混凝土拱桥——积石峡黄河特大桥正凌空飞 渡险峻的积石峡。让我们走近这座"黄河上游第一跨"，探寻它的创新密码。 0:00 ...