人民日报记者 李心萍 2005年，"万里长江第一隧"——武汉长江隧道江南始发井正式开挖，拉开我国以隧道穿越长江的序 幕。 2025年，"万里长江高铁第一隧"——渝厦高铁重庆菜园坝长江铁路隧道盾构段近日顺利贯通。 从长江中下游到上游，从公路到地铁、高铁隧道，万里长江，多条隧道穿越，见证水下盾构技术跃 迁。 以毫米级精度掘进 高铁隧道成功穿越长江 重庆菜园坝长江铁路隧道，中国高铁首次穿越长江，难度何在？ 隧道全长约11.9公里，连接重庆渝中区与南岸区，需穿越"山、城、水、江"4种环境。其 中，"山""城""水"分别是重庆长江南岸的铜锣山山脉、重庆市区和翠云水库等4处水体。 "江"，则是长江主航道。隧道穿江段长度仅1282米，但泥岩砂岩变化反复，节理裂隙带多，最小覆 岩厚度仅10米。 建成这样一条超高难度隧道，对盾构装备与施工工艺要求很高。 装备上，使用我国自主选型设计的大直径泥水平衡盾构机——"长江号"盾构机。 这台直径12.66米，总长142米，总重量约3500吨的巨无霸，配备开挖仓高精度气液压力平衡控制系 统，能精准调节盾构机开挖面压力，顶住前方巨大的水土压力，保证隧道掘进安全。 "穿江，难就难在顶住高深度带 ...

Core Viewpoint - The successful completion of the lining construction of the Tangshan Road Tunnel marks a significant milestone in the construction of the largest municipal traffic tunnel in China, providing crucial support for the overall completion of the Tangshan Road Expressway project [1][2]. Group 1: Project Overview - The Tangshan Road Tunnel is a key control project of the Tangshan Road Expressway, featuring complex construction challenges such as "multi-section conversion, small clear distance construction, and super-large span excavation" [2]. - The tunnel spans 1551 meters, designed with a dual-lane, dual-tunnel structure accommodating eight lanes, with a maximum excavation span of 31.8 meters and a maximum height of 17.88 meters [2]. - The maximum excavation cross-section reaches 447.62 square meters, exceeding the area of a standard basketball court, making it the largest excavation cross-section municipal traffic tunnel under construction in China [2]. Group 2: Construction Challenges and Innovations - The project faces significant challenges due to the complex geological conditions of the Tiger Mountain area and the need to maintain a minimum distance of only 0.5 meters between tunnels [2][5]. - To address these challenges, the construction team has implemented innovative solutions, including the use of intelligent rail-mounted vehicles and automated positioning systems to adapt to multi-section construction requirements [5]. - The project team has also optimized the concrete pouring process to ensure high-quality concrete structures, employing advanced techniques to prevent segregation and air bubble retention [7]. Group 3: Strategic Importance - The Tangshan Road Expressway serves as an important "seam line" in Qingdao's urban expressway network, connecting key routes and enhancing traffic flow [8]. - Upon completion, the project will fill a critical gap in the expressway network between the cross-sea bridge and the new airport expressway, significantly alleviating north-south traffic pressure in Qingdao [10]. - The project is expected to be completed by the end of this year, further supporting the high-quality development of the region and improving travel efficiency for residents [8][10].

Core Insights - The establishment of the Shield Tunnel/Boring Machine (TBM) Big Data Mining Community marks a significant advancement in China's tunnel construction, transitioning into a data-driven and intelligent era [1] - The release of the first vertical large model in the tunnel and underground space sector, named "Pioneer Tunnel Model," showcases the integration of artificial intelligence and big data in enhancing construction efficiency and safety [1][2] Group 1 - The "Pioneer Tunnel Model" was developed by China Railway Tunnel Bureau's key laboratory, utilizing data from 773 engineering lines and 120 billion construction data points to create a comprehensive technology system for the tunnel and underground space lifecycle [1] - The model includes an AI assistant called "Tunnel Hero," which provides functionalities such as industry knowledge dissemination, professional Q&A, industry standards, text translation, and project planning support [1] - The model has achieved over 90% accuracy in predicting hazards like faults and sinkholes in complex geological conditions, significantly improving real-time detection capabilities [2] Group 2 - The newly formed Shield/TBM Big Data Mining Community aims to address industry challenges such as data silos, inconsistent standards, and insufficient collaboration across the entire construction lifecycle [2] - The community will focus on three core tasks: building a unified data center, collaborating on core algorithm development for TBM, and integrating industry-academia-research applications to accelerate technology transfer and foster new productivity [2]

Core Viewpoint - The successful completion of the world's largest underwater shield tunnel, the "Shanhe" shield machine, marks a significant achievement in engineering and construction, showcasing advanced technology and innovative methods in tunnel construction [2][4]. Group 1: Project Overview - The Jinan Huanggang Road Yellow River Tunnel, with a total length of approximately 5.75 kilometers and a shield section of about 3.3 kilometers, is the first single-tube double-layer shield tunnel crossing the Yellow River in China [2]. - The tunnel features a dual-direction six-lane design with a maximum speed of 60 km/h, significantly reducing the average distance between river crossings to 3 kilometers [2]. Group 2: Engineering Challenges - The construction faced significant challenges, including the need to traverse a "suspended river" where the riverbed is 5 meters above the ground level, with the tunnel's lowest point located 54 meters below the riverbed [3]. - The project encountered unpredictable geological conditions, with a large area of "calcium nodules" embedded in the clay layer, complicating the excavation process [7][8]. Group 3: Technological Innovations - The "Shanhe" shield machine, with a diameter of 17.5 meters, was specifically designed to enhance excavation efficiency, achieving a digging speed of 35 mm per minute, surpassing previous records [4][6]. - The machine is equipped with advanced features such as a telescopic main drive and a fourth-generation dual-liquid synchronous grouting technology, enabling real-time monitoring and intelligent decision-making [5][10]. Group 4: Mud Treatment and Environmental Considerations - The project implemented a self-built mud treatment facility capable of processing nearly 600 cubic meters of mud per hour, improving efficiency by 50% and ensuring zero pollution to the surrounding water sources [9][10]. - The innovative "flocculation + concentration + pressure filtration" process was developed to handle the unique challenges posed by the Yellow River's mud layers [10]. Group 5: Construction Coordination - The tunnel's design required simultaneous construction of internal structures within a confined space, leading to the development of a custom combination vehicle to facilitate efficient material transport and construction coordination [11]. - The project team optimized over ten construction processes, resulting in a 60% improvement in internal structure construction efficiency, ensuring the overall progress of the project [11].

Core Viewpoint - The successful breakthrough of the "Shanhe" shield machine at the Huanghe Tunnel in Jinan marks a significant milestone as it is the world's largest underwater shield tunnel with a diameter of 17.5 meters [1] Group 1: Project Details - The Huanghe Tunnel project is invested and constructed by Jinan Urban Construction Group, with China Railway 14th Bureau Group as the contractor [1] - The completion of this tunnel is considered a milestone in engineering, as stated by Qian Qihu, a recipient of the National Supreme Science and Technology Award and an academician of the Chinese Academy of Engineering [1]

Core Viewpoint - The successful completion of the Jinan Huanggang Road Yellow River Tunnel marks a significant milestone in underwater tunnel construction in China, utilizing the world's largest diameter underwater shield tunneling machine, "Shanhe" [1][5][16]. Group 1: Project Overview - The Jinan Huanggang Road Yellow River Tunnel is approximately 5.75 kilometers long, with the shield section measuring about 3.3 kilometers, designed for a speed of 60 kilometers per hour, and features a single-hole double-layer tunnel layout, making it the first of its kind in China to cross the Yellow River [5][16]. - The shield machine, "Shanhe," has a diameter of 17.5 meters and is designed to navigate complex geological conditions, including a maximum soil cover of 49.2 meters and a maximum water-soil pressure of 6.3 bar [5][8]. Group 2: Technical Innovations - The project team developed a unique "flocculation + concentration + pressure filtration" system, improving mud treatment efficiency by 50% and reducing the moisture content of the filter cake to below 30% [15]. - Advanced technologies such as diamond tools, rock crushers, and dual-pipeline hydraulic rock drilling devices were employed to address challenges posed by calcareous nodules, achieving continuous tunneling for 3.3 kilometers without changing tools [15][16]. Group 3: Construction Achievements - The project has overcome 28 technical challenges, achieving a maximum daily advance rate of 18 meters and a monthly advance rate of 426 meters, setting a world record for 17-meter diameter shield construction [16]. - The construction process has resulted in over 30 scientific papers and 22 patent applications, establishing a complete technical system for 17-meter shield construction, enhancing China's capabilities in large-diameter shield tunneling [16]. Group 4: Economic and Strategic Impact - The completion of the tunnel will enhance economic exchanges and cooperation between the north and south banks of the Yellow River, significantly contributing to the development of Jinan and supporting national strategies related to the Yellow River [16].

Core Viewpoint - The article highlights the journey and contributions of Mao Jinbo, the chief engineer of the Tianshan Victory Tunnel project, emphasizing his innovative approaches, commitment to ecological protection, and dedication to nurturing future engineers [3][4][9]. Group 1: Project Overview - The Tianshan Victory Tunnel, measuring 22.13 kilometers, is the longest highway tunnel under construction globally, which will significantly reduce travel time between southern and northern Xinjiang to less than 20 minutes, thereby transforming the local economy and livelihoods [4]. - Mao Jinbo initially approached the project with uncertainty but leveraged his previous experience in highway projects to successfully take on the role of chief engineer [4][5]. Group 2: Innovation and Environmental Protection - Mao Jinbo implemented innovative construction methods, such as the "three tunnels and four shafts" approach, which accelerated construction and reduced safety risks in the face of challenging geological conditions [5]. - The design of the middle guiding tunnel serves dual purposes as a construction passage and a permanent emergency route, enhancing safety and operational efficiency [6]. - Environmental considerations are integral to the project, with initiatives like hiring local herders as ecological supervisors and repurposing waste materials for construction, reflecting a commitment to ecological restoration [8]. Group 3: Education and Mentorship - Mao Jinbo actively participates in educational outreach, sharing the story of the Tianshan Victory Tunnel with students to inspire future generations of engineers [9]. - He emphasizes the importance of innovation in engineering, encouraging young engineers to make incremental improvements and embrace new technologies [13].

8月10日，我国首个隧道与地下空间领域垂直大模型在郑州发布，标志着中国隧道建造迈入数据驱 动、智能引领新时代。 当天，盾构/TBM大数据挖掘共同体成立大会暨隧道与地下空间领域垂直大模型发布会，在郑州高 新区隧道掘进机智能建造云中心举行，现场发布由中国中铁隧道局隧道掘进机及智能运维全国重点实验 室研发的国内首个"隧道与地下空间领域垂直大模型——先锋·隧道大模型"。 该模型作为隧道领域首个垂直大模型，依托盾构/TBM工程大数据中心773条工程线路、1200亿条工 程建造数据，构建了通用大模型调度中小模型驱动的垂直领域大模型技术体系，形成了贯穿隧道与地下 空间领域全生命周期场景+AI的数智互馈赋能技术体系新形态；研发了人机交互深度求索的隧道侠AI助 手，搭建行业科普、专业问答、行业标准、文本翻译、专项方案和施组辅助编制功能新引擎；突破大模 型对齐与微调技术，研发系列知识与数据场景靶向驱动的中小模型，形成隧道设计BIM可视化、隧道施 工评估、隧道装备选型、隧道运维感知与解译等多个应用数智决策新范式。目前，该模型已在高原铁路 隧道、崇太长江隧道、深江铁路珠江口隧道等工程完成验证，实现隧道建造安全、优质、高效、绿色， 推 ...

Core Points - The "Cangyuan" shield machine, developed by China Communications Tunnel Bureau, has commenced its excavation phase for the Haitaichangjiang Tunnel A4 project, marking a significant advancement in high-end tunnel construction equipment in China [1] - The Haitaichangjiang Tunnel spans 39.07 kilometers, connecting Haimen District in Nantong City to Taicang City in Suzhou, and is designed to alleviate traffic flow from the Sutong Yangtze River Bridge [1] - The "Cangyuan" shield machine features a diameter of 16.66 meters, a total length of 176 meters, and weighs over 5,650 tons, making it the largest slurry balance shield machine independently developed in China [1] - The project integrates three core technologies, including a "digital brain" for intelligent control, "smart blade teeth" technology for efficient excavation, and a globally innovative "smart heart" active protection system [1] - The Haitaichangjiang Tunnel is a key project in the "Yangtze River Main Line Cross-River Channel Layout Plan (2020-2035)," aimed at enhancing cross-river transportation capabilities and promoting the integration of urban clusters along the river [1]

Core Points - The project "Cangyuan" shield machine, constructed by China Communications Tunnel Bureau, has officially commenced its tunneling phase on August 11 [1] - The Hai-Tai Yangtze River Tunnel spans a total length of 39.07 kilometers, connecting Haimen District in Nantong, Jiangsu, to Taicang City in Suzhou, Jiangsu [1] - The "Cangyuan" shield machine is 176 meters long, weighs over 5,650 tons, and has a tunneling diameter of 16.66 meters, representing China's independent research and development in slurry balance shield machines [1] Technology and Innovation - The "Cangyuan" shield machine integrates three core technologies to address the challenges of ultra-long distance, large diameter, high water pressure, and deep burial [1] - It features a "digital brain" for intelligent control, "smart blade" technology to overcome efficient tunneling bottlenecks, and the world's first "smart heart" active protection system [1] - The collaborative application of diverse technologies provides dynamic safety assurance for complex working conditions characterized by "long, large, high, and deep" [1]