Core Viewpoint - The construction of major projects in Shaanxi is accelerating, contributing to the province's high-quality development and addressing critical infrastructure needs [1][2][3]. Group 1: Major Projects Progress - The Yulin Yellow River East Line Water Diversion Project is nearing completion, with a designed capacity of 220 million cubic meters per year, aimed at solving industrial water shortages in multiple regions [1]. - The Xi'an-Yan'an High-Speed Railway has completed key tests, including full-line connection and speed trials, preparing for official operation [2]. - The construction of the 10kV substations for the Xikang High-Speed Railway is progressing, with the successful energization of the substation at Zhashui West Station, supporting future operational needs [3]. Group 2: Infrastructure Development Impact - The ongoing infrastructure projects are expected to enhance economic capabilities and improve transportation efficiency in Shaanxi [3]. - The Xi'an-Yan'an High-Speed Railway is set to open by the end of this year, while other high-speed rail lines are in various stages of construction, with track laying expected to be completed by the end of November [3].

西渝高铁康渝段大象洞隧道贯通 中新网成都10月29日电 (记者 刘忠俊)10月29日，西渝高铁安康至重庆段(以下简称"西渝高铁康渝段")大 象洞隧道顺利贯通，标志着该线路全线隧道施工进入攻坚冲刺阶段。 据悉，西渝高铁通车后，将与成渝高铁、郑渝高铁等已运营线路，及渝昆、西延、西十高铁等在建线路 互联互通，助力中西部路网完善，便利沿线群众出行。(完) 来源：中国新闻网 编辑：王永乐 广告等商务合作，请点击这里 本文为转载内容，授权事宜请联系原著作权人 中新经纬版权所有，未经书面授权，任何单位及个人不得转载、摘编或以其它方式使用。 关注中新经纬微信公众号(微信搜索"中新经纬"或"jwview")，看更多精彩财经资讯。 贯通后西渝高铁康渝段大象洞隧道洞口。京昆高铁西昆公司供图 西渝高铁是我国"八纵八横"高铁网京昆通道、包(银)海通道的重要组成部分，路网战略地位突出。其中 康渝段正线长478公里，起于安康西站，经陕西安康、重庆城口，四川达州、广安，重庆合川、北碚， 终至重庆西站。 大象洞隧道位于四川省达州市宣汉县境内，由中铁二十局集团承建，为单洞双线铁路隧道，全长249 米。隧道地处巴山大峡谷国家4A级景区与省级自然保 ...

Core Points - The box girder prefabrication task at the China Railway 11th Bureau's Huhang-Chongqing-Rongcheng high-speed railway Hu-Ning section has entered the final stage, with operations proceeding in an orderly manner [7][12] - A total of 847 box girders have been prefabricated at the site so far [7][12] - The Huhang-Chongqing-Rongcheng high-speed railway is an important part of China's "Eight Vertical and Eight Horizontal" high-speed rail network along the Yangtze River corridor [7][12]

Core Insights - The launch of a large-diameter shield machine, featuring the "Pioneer Bull" design, marks a significant advancement in the construction of the Shenzhen to Shenshan Cooperation Zone Railway (Shenshan High-speed Railway) [1] - The Shenshan High-speed Railway is the first high-speed rail line in the Guangdong-Hong Kong-Macao Greater Bay Area, designed for a speed of 350 km/h, connecting key urban areas [1][2] Group 1 - The Shenshan High-speed Railway has a total length of 125.5 kilometers, starting from Xili Station in Shenzhen and connecting to four major transportation hubs [1] - The project is a crucial part of the national "Eight Horizontal and Eight Vertical" high-speed rail network and aims to enhance the rail transport infrastructure in the Greater Bay Area [1] - The Longgang Tunnel, a key section of the railway, is 10,307 meters long and designed for a speed of 350 km/h, utilizing both shield and mining construction methods [1] Group 2 - Construction of the Shenshan High-speed Railway began in January 2021, with a high bridge-tunnel ratio of 92.6%, currently in critical shield construction stages [2] - Upon completion, travel time from Shenzhen to the Shenshan Cooperation Zone will be reduced from 47 minutes to 30 minutes, significantly improving connectivity to the eastern Guangdong city cluster [2] - The railway will facilitate access to the Haixi city cluster in 2 hours and the Yangtze River Delta city cluster in 5 hours, optimizing Shenzhen's external rail connections [2]

于洋烟台报道 通讯员刘陈永蒲枭 从中铁四局获悉,10月22日,由该局承建的龙烟市域化改造工程首座连续梁——臧家特大桥64m连续梁顺 利浇筑完成,标志着该项目连续梁上部结构施工迎来关键推进节点,为后续梁体浇筑工作奠定坚实基础。 为确保全线首座连续梁顺利浇筑,各参建单位秉持"安全为先、质量为本"原则,精心组织、周密部署,严格 遵循标准化建设管理要求,牵头组织监理及设计单位多次召开专项推进会与技术研讨会,细化模板安装、 钢筋绑扎、预应力施工、混凝土浇筑等关键工序的操作流程,建立全流程安全质量管控体系。 作为龙烟铁路市域化改造工程的重要施工节点,该连续梁的顺利推进将进一步完善臧家特大桥上部结构 体系,为全线后续铺轨及通车目标的实现提供有力支撑。下一步,项目团队将持续严把安全质量关,稳步推 进模板安装、钢筋绑扎等后续工序,全力以赴保障梁体浇筑工作按期高质量完成。 由中铁四局承建的龙烟铁路市域化改造工程2标项目,位于山东省烟台市境内,全长34.26公里。施工内容 涵盖16座桥梁,2座隧道,沿线新建车站6座、改建车站4座。龙烟铁路市域化改造项目将打通烟台市东西方 向快速公共交通动脉,可便捷服务沿线通勤客流、机场客流、轮渡客 ...

Core Points - The completion of the last box girder placement for the Yucen section of the Nanzhu High-speed Railway marks a significant milestone in the construction process [1][3] - The Yucen section spans 20.9 kilometers and includes various engineering works such as bridges, tunnels, and roadbed [3][4] - The project aims to enhance transportation conditions in the eastern Guangxi region and facilitate economic development in the Beibu Gulf Economic Zone and the Guangdong-Hong Kong-Macau Greater Bay Area [4] Construction Progress - The construction of the Yucen section has reached a critical phase, with 99.7% of the earthworks completed, 98.1% of the bridge works finished, and 100% of the tunnel works completed [3] - The project includes 21 bridges totaling 7.61 kilometers and requires the installation of 157 box girders [3] - The construction team has effectively managed the schedule and safety protocols to overcome challenges such as tight deadlines and long single-line transport distances [3] Project Significance - The Nanzhu High-speed Railway is a key infrastructure project that connects the Guangxi region to the Greater Bay Area, with a total length of 110.309 kilometers and a design speed of 350 kilometers per hour [4] - The completion of this railway is expected to improve regional transportation, enhance the quality and capacity of the transportation corridor between Guangxi and Guangdong, and stimulate economic growth along the route [4]

Core Points - The successful installation of the last steel cover beam at the Ninghuai Intercity Railway construction site marks a significant milestone for the project, laying a solid foundation for subsequent bridge and track construction [1][3] - The Ninghuai Intercity Railway is a key component of the Jiangsu Province intercity railway backbone and the Yangtze River Delta intercity rail transit network, which will enable a one-hour direct connection between Nanjing and Huai'an upon completion [3] Summary by Sections Project Overview - The Huanglou to Hongze Left Single-Line Bridge spans a total length of 5,136.551 meters and utilizes a design featuring three portal piers with 32-meter simply supported beams to cross the Lianzhong Railway [3] - The steel cover beams have a height of 3.2 meters, a width of 3.3 meters, and a length of 32.5 meters, with each beam weighing 137 tons, contributing to a total lifting weight of 160.28 tons for the operation [3] Construction Challenges - The installation faced multiple challenges, including the need for coordination with operational railway lines, high risks associated with concurrent operations, and the requirement for precise positioning of heavy components [3] - To ensure successful installation, the project team optimized the lifting plan, calculated the load-bearing capacity of the crane's foundation, and meticulously rehearsed the lifting process [3] Safety and Monitoring - A comprehensive management approach was implemented during the lifting operation, including a "one person, one post, one machine, one control" strategy and the use of drone aerial photography combined with an intelligent monitoring system for real-time oversight [3] - A 650-ton crawler crane was employed to ensure the steel cover beams were installed correctly in one attempt [3]

Core Viewpoint - The successful completion of the Zaxilong Tunnel marks a significant breakthrough in the construction of the Xicheng Railway, laying a solid foundation for subsequent construction progress and timely operation of the entire line [1] Group 1: Project Details - The Zaxilong Tunnel, located in Gansu Province, has a total length of 2,585 meters and is situated at an altitude of 3,105 to 3,500 meters in a cold mountainous area [1] - The tunnel has a maximum burial depth of 360 meters and traverses complex geological structures in the Xiqinling high and middle mountains [1] - The construction faced multiple challenges including cold weather, low oxygen levels, high ground stress, and weak surrounding rock [1] Group 2: Innovative Construction Techniques - The construction team from China Railway 10th Bureau adopted an "active support" concept and established a "high-strength composite support system" to address geological complexities and weak surrounding rock [1] - Real-time data collection was utilized to dynamically optimize support parameters, effectively controlling surrounding rock deformation and ensuring construction safety and quality [1] - A dual mechanism of "grid management for safety production + penetrating management" was implemented to accurately assign safety responsibilities at the frontline operational level, ensuring safety throughout the construction process [1] Group 3: Strategic Importance - The successful completion of the Zaxilong Tunnel creates favorable conditions for the construction of the Xicheng Railway [1] - Once completed, the Xicheng Railway will significantly enhance transportation links between the Lanzhou-Xi and Chengdu-Chongqing urban agglomerations [1] - The railway is expected to promote the coordinated development of the "Silk Road Economic Belt" and the "Yangtze River Economic Belt," playing a crucial strategic role in driving high-quality economic and social development in the surrounding areas and rural revitalization [1]

Core Points - The successful completion of the 64m continuous beam construction for the Zangjia Grand Bridge marks a significant milestone in the Longyan Railway urbanization renovation project, laying a solid foundation for subsequent beam pouring work [1][3] - The project, undertaken by China Railway Fourth Bureau, emphasizes safety and quality, implementing a comprehensive safety and quality control system throughout the construction process [3] - The Longyan Railway urbanization renovation project spans 34.26 kilometers in Yantai, Shandong Province, involving the construction of 16 bridges, 2 tunnels, and 10 stations, which will enhance public transportation efficiency in the region [3][4] Project Details - The continuous beam is a prestressed concrete structure with a total length of 145.2m, utilizing a support casting method, and the poured beam covers a design volume of 1224m [3] - The project aims to significantly reduce travel time between Yantai Station and the airport station to approximately 25 minutes, improving overall transit conditions in the area [4] - The renovation will facilitate better connectivity for commuters, airport passengers, ferry travelers, and tourists, contributing to the economic and social development of Yantai [4]

10月21日18时18分，在麻城市曹家坳村，沪渝蓉高铁合武段跨京九铁路特大桥66号墩T构转体连续梁，67分钟后成功跨越既有京九铁 路，精准落在设计桥位上，顺利实现对接。 合武高铁全长360公里，设计时速350公里，东起合肥，经六安、金寨、麻城、红安至武汉，是沪渝蓉沿江高铁的重要组成部分。未来 从上海、南京方向来的高铁列车可借此线路以最高速直达武汉、重庆、成都，旅行时间将大幅缩短。武汉至合肥将由目前的2小时缩短至1 小时，将进一步优化长江经济带铁路网布局。 此次完成跨越的T构转体连续梁长96米，横跨京九铁路，且转体连续梁紧邻沪蓉铁路，桥梁边缘距离铁路接触网最近处不足18米。而 沪蓉铁路作为中国东西向铁路大动脉，高峰时段平均每两三分钟就有一趟列车呼啸而过，给施工带来挑战。 为了啃下这块"硬骨头"，铁路建设者们提前数月谋划，运用5G和物联网技术，在施工现场设置智能监控系统。在京九铁路、沪蓉铁路 两侧布设沉降观测点，全程监测施工影响。 这座总重5300吨的庞然大物成功转体后，中铁一局集团有限公司合武二标项目部负责人张超激动地表示："此次转体施工的成功，实现 了施工不扰运营、安全零事故的目标。" 编辑：胡之澜 沪渝蓉高 ...