工作人员进行管片吊装作业 据悉，此次万米突破是世界范围内15米级大直径盾构首次实现一次性连续掘进上万米，不仅展现了我国在隧道智能建造领域的硬核实力，也标志着中国在 该领域实现了从"并跑"到"领跑"的历史性跨越。接下来，院士专家团队将聚焦"最后一公里"的施工难点，持续深化智能建造创新，全力冲刺贯通目标，以 更多技术突破引领世界隧道工程技术发展。 12月16日，在万里长江入海口，我国自主研制的世界最大直径高铁盾构机——崇太长江隧道"领航号"掘进突破10000米大关，距离长江南岸仅剩1000米， 标志着这一世界级越江隧道工程取得阶段性重大进展，为全线贯通奠定坚实基础。 崇太长江隧道建设现场 崇太长江隧道是北沿江高铁的控制性工程，连接上海市崇明区和江苏省太仓市，全长14.25千米，其中盾构段长13.2千米，采取单洞双线设计。该隧道具有 多项世界之最：独头掘进长度达11.3255千米，是世界独头掘进距离最长的隧道；设计时速350公里，为世界行车速度最高的水下隧道；隧道深入长江水下 89米，是目前长江最深江底隧道。项目建成运营后，将实现高铁穿越长江不减速。 应用于崇太长江隧道掘进施工的"领航号"盾构机，总长148米，总重 ...

12月16日，在万里长江入海口，由我国自主研制的世界最大直径高铁盾构机——崇太长江隧道"领航 号"掘进突破10000米大关，距离长江南岸2号井仅剩1.3千米，标志着崇太长江隧道工程向着打通"最后 一公里"、实现350公里时速高铁过江的目标迈出关键性的一步。 "领航号"盾构机搭载世界最强脑系统——I-TBM系统，突破了盾构仓内压力自适应、云端预测数据自决 策、掘进姿态自巡航、环流出渣自调整等核心技术，拥有"独立思考、智能分析、自主判断"能力，掘 进、环流、姿态参数较人工操作更平稳，成功实现全系统算法控制的无人化智能掘进的常态应用，创造 了15米级高铁隧道月掘进718米世界纪录。 （文章来源：科技日报） 崇太长江隧道作为我国"八纵八横"高速铁路网沿江高铁通道沪渝蓉高铁的关键控制性咽喉工程，连接上 海市崇明区与江苏省太仓市，隧道全长14.25千米，其中盾构段长13.201千米，集长（独头掘进距离 11.325千米-3号井至2号井）、大（刀盘直径15.4米）、高（水下行车速度350千米/h）、深（长江水下 89米）于一体，是目前建设标准最高、掘进距离最长、规模最大的世界级高铁越江隧道工程。建成后， 将大幅缩短上海、南 ...

12月16日，在万里长江的入海口，由我国自主研制的世界最大直径高铁盾构机——崇太长江隧道"领航号"掘进突破10000米大关，距离长江南岸2号井仅剩 1.3千米，标志着崇太长江隧道工程向着打通"最后一公里"、实现350公里时速高铁过江的目标迈出关键性的一步。 "领航号"盾构机总长约148米，总重约4000吨，拥有直径15.4米的刀盘，拥有"独立思考、智能分析、自主判断"能力，成功实现全系统算法控制的无人化智 能掘进的常态应用，创造了15米级高铁隧道月掘进718米世界纪录。 崇太长江隧道作为我国"八纵八横"高速铁路网沿江高铁通道沪渝蓉高铁的关键控制性咽喉工程，连接上海市崇明区与江苏省太仓市，隧道全长14.25千米， 其中盾构段长13.201千米，集长(独头掘进距离11.325千米)、大(刀盘直径15.4米)、高(水下行车速度350千米/h)、深(长江水下89米)于一体，是目前建设标准 最高、掘进距离最长、规模最大的世界级高铁越江隧道工程。建成后，将大幅缩短上海、南京、合肥等沿江城市的时空距离，对打造"轨道上的长三角"、服 务长江经济带高质量发展具有十分重要的意义，崇明至上海宝山站最快17分钟可达。 a " 中 + ...

Core Points - The construction of the first underwater tunnel in Abu Dhabi is underway, connecting Saadiyat Island and Umm Al-Emarat Island, with completion expected by the end of next year [1][6] - The project utilizes a single-row steel pipe pile cofferdam, which is a world-first engineering approach, overcoming significant technical challenges [3][6] - The successful application of this construction method showcases China's advanced engineering capabilities and is being studied as a case of technological innovation [3][6] Project Details - The underwater tunnel will enhance the transportation network and regional economic development by ensuring a permanent navigable channel for two-way traffic [6] - The construction involves a temporary cofferdam to facilitate excavation, with the current cofferdam measuring 500 meters in length and 200 meters in width [3][6] - The project team has previously applied similar technology in the Shenzhen-Zhongshan Link, demonstrating its effectiveness in complex engineering projects [3][6] Engineering Challenges - The use of single-row steel pipe piles presents challenges in withstanding significant water pressure and preventing water leakage [3] - The project has received recognition from international design teams for its innovative approach and successful execution [6] - Continuous monitoring and precise control of construction parameters are critical to achieving the project's design goals [3][6]

12月5日，游艇从三亚河口通道工程项目上驶过。 12月5日，海南自贸港重点项目——三亚河口通道工程项目顺利完成海底首次贯通，该项目是海南三亚首个水下隧道工程，由中铁二十局承 建，隧道总长度3.118千米。三亚河口通道工程项目建成后，将彻底打通三亚河口两岸的交通瓶颈，实现片区通行时间从30分钟缩短至5分钟以 内，进一步优化三亚市"东西联动、南北互通"的空间发展格局，为海南自贸港发展提供有利条件。 新华社记者赵颖全摄 12月5日，海南自贸港重点项目——三亚河口通道工程项目顺利完成海底首次贯通，该项目是海南三亚首个水下隧道工程，由中铁二十局承 建，隧道总长度3.118千米。三亚河口通道工程项目建成后，将彻底打通三亚河口两岸的交通瓶颈，实现片区通行时间从30分钟缩短至5分钟以 内，进一步优化三亚市"东西联动、南北互通"的空间发展格局，为海南自贸港发展提供有利条件。 新华社记者赵颖全摄 12月5日，工人在三亚河口通道工程项目现场检查钢管焊缝质量。 12月5日，在三亚河口通道工程项目现场，工作人员庆祝三亚首个水下隧道顺利完成海底首次贯通。 12月5日，海南自贸港重点项目——三亚河口通道工程项目顺利完成海底首次贯通，该项目 ...

Core Points - The article reports that China Railway 18th Bureau Group Tunnel Engineering Co., Ltd. received a penalty from the Central China Energy Regulatory Bureau for obtaining an electricity facility license through deceptive means [1][2][3] Group 1: Penalty Details - The penalty includes a warning and a fine of 20,000 yuan [2][3] - The violation involved the company using fabricated labor contracts and technical director appointment documents to secure the license [2][3] - The penalty was executed normally as per the regulations outlined in the Administrative Penalty Law of the People's Republic of China and related licensing management measures [3] Group 2: Company Information - China Railway 18th Bureau Group Tunnel Engineering Co., Ltd. was established in 2011 and has a registered capital of 30 million yuan [3] - The company is wholly owned by China Railway 18th Bureau Group Co., Ltd. [3]

Core Viewpoint - The Chengyu Middle Line High-Speed Railway's shield tunnel segment production has been completed three months ahead of schedule, showcasing advancements in automation and efficiency in the manufacturing process [4][6]. Project Overview - The project is managed by China Railway 11th Bureau and involves the production of shield segments for the Shuan Tunnel of the Chengyu Middle Line High-Speed Railway, officially starting operations in September 2023 [3]. - The factory has completed the production of 4,919 segments, ahead of the planned timeline [3]. Production Efficiency - The factory has achieved a 20% increase in production efficiency compared to traditional factories, with the implementation of an intelligent production management system [6][7]. - The workforce has been reduced from 91 to 34 workers due to automation, allowing for the completion of a segment every five to six minutes [6]. Technological Advancements - The factory utilizes an intelligent production management system that integrates 3D laser scanning and automatic detection technology, ensuring production tolerances are within 1 millimeter for various dimensions [7]. - A new online simulation assembly testing process has been introduced, significantly reducing the time required for quality assurance from three days to one hour [7]. Current Progress - As of now, the tunnel has progressed 8,380 meters, completing approximately 80% of the total engineering work [7].

Core Viewpoint - The completion of the Jiangyin-Jingjiang Yangtze River Tunnel marks a significant technological breakthrough in tunnel engineering in China, overcoming world-class challenges related to high water pressure and strong permeable strata [1] Group 1: Project Overview - The Jiangyin-Jingjiang Yangtze River Tunnel spans approximately 11.825 kilometers, with an underwater shield section of about 4,937 meters and a diameter of 16.09 meters [1] - The project faced complex geological conditions, including high water pressure and large diameter requirements [1] Group 2: Technological Innovations - The project team from China Communications First Highway Engineering Group developed a complete set of technologies for high water pressure and strong permeable sand layer tunneling, which has broken the length limit for single-shield tunneling [1] - This technological advancement enables the construction of ultra-long-distance shield tunnels, providing valuable experience and technical reserves for future mega-engineering projects across rivers and seas [1] Group 3: Economic and Regional Impact - As a key project in the comprehensive transportation corridor planning of the Yangtze River Economic Belt, the tunnel will significantly alleviate traffic pressure on the Jiangyin Yangtze River Bridge and enhance the crossing capacity of the Yangtze River main line [1] - The completion of the tunnel is expected to promote high-quality integrated development in the Yangtze River Delta region [1]

Core Points - Shanghai Tunnel Engineering Co., Ltd. has submitted a registration and listing application for the "Dongfanghong Tunnel Co., Ltd. Intelligent Operation and Maintenance High-Speed Closed Infrastructure Securities Investment Fund" to the China Securities Regulatory Commission (CSRC) and the Shanghai Stock Exchange, which was officially accepted on November 25, 2025 [1][2] - The issuance of the public REITs is subject to approval from the CSRC and the Shanghai Stock Exchange, indicating a level of uncertainty in the process [2] Company Information - The company has committed to fulfilling its information disclosure obligations in accordance with legal regulations as the situation progresses [2] - The board of directors of Shanghai Tunnel Engineering Co., Ltd. has ensured the accuracy and completeness of the announcement regarding the REITs application [1][4]

Core Viewpoint - The Boring Company, founded by Elon Musk, has been fined nearly $500,000 for illegal dumping of drilling fluids in Las Vegas, causing significant damage to local infrastructure [2][4]. Group 1: Violations and Penalties - The Clark County Water Reclamation District (CCWRD) issued a fine of $493,297.08, with $131,297.08 allocated for the costs incurred in handling the dumped liquids [4]. - The company was found to have violated federal laws, and the nature of the violations was deemed severe, leading to the imposition of the fine [4]. - Boring Company executives acknowledged their responsibility during a hearing with CCWRD and agreed to halt expansion into new areas until specific conditions are met [4][7]. Group 2: Environmental and Safety Concerns - The drilling fluids and waste dumped by the company are suspected to contain toxic chemicals, which have caused skin burns to several employees [3][7]. - The company has faced multiple allegations of circumventing safety regulations and environmental laws, with a history of over 800 violations in the past two years [8]. - Boring Company has been involved in several incidents that raised safety concerns, including exposing structural supports of a monorail during operations [8]. Group 3: Company Background and Operations - Founded in 2017, Boring Company aims to alleviate urban traffic congestion by constructing underground tunnels for autonomous Tesla vehicles [7]. - The company has raised over $900 million from top Silicon Valley investors, but its projects have faced delays and safety incidents [7][8]. - The Las Vegas Convention Center's underground tunnel, approximately 4 miles (about 6 kilometers) long, is the only completed project reflecting Musk's vision [8].