成都至达州至万州高速铁路是国家"八纵八横"高铁网沿江通道的重要组成部分，正线全长约477公 里，建成通车后，从成都经达州到重庆的行车时间，将由5个小时左右缩短到2小时以内。 新华社北京11月25日电 记者从中国铁建股份有限公司获悉，25日，由中铁十五局承建的成达万高 铁全线控制性工程渠江特大桥成功合龙，为后续工程建设奠定了坚实基础。 据中铁十五局成达万高铁项目负责人王念峰介绍，渠江特大桥位于四川省达州市渠县境内，全长 1983.81米。主桥为预应力混凝土矮塔斜拉桥，全长557.5米。大桥建设过程中，项目团队提前编制科学 高效的施工组织方案，通过优化混凝土浇筑时机与配比设计，实现合龙段毫米级误差对接，最终达成全 桥高精度贯通目标。 ...

11月18日凌晨3时许，随着一声"就位完毕"口令，成都至达州至万州高速铁路（以下简称成达万高铁）德公村 特大桥施工现场，重达170吨的钢盖梁精准落位到桥墩钢柱位置。这标志着成达万高铁上跨沪蓉铁路支线——遂新 联络线上行线的钢盖梁吊装作业完成。 德公村特大桥位于遂宁市安居区横山镇，全长约3876米。此次吊装作业因涉及既有在运营线路，施工面临协 调难度大、交叉作业风险高、大吨位构件定位精度严等多重挑战。中建八局成达万高铁工程指挥部第一工区总工 程师马辰介绍，团队采用"柱脚+主体"分体吊装法，为最大限度减少对铁路运营的干扰，作业选在凌晨铁路运行 的"天窗点"进行。作业过程中，钢盖梁逆时针旋转150度后与门式墩精准对位，整场吊装历时120分钟。为确保吊 装精准安全，项目团队多次优化施工方案，并组织流程推演和实操演练，运用"无人机航拍+智能监控系统"构建立 体监控网络，实现全过程、无死角实时盯控。 11月18日，在遂宁市安居区横山镇，成达万高铁德公村特大桥建设现场，一榀重达170吨的钢盖梁精准落位到 桥墩钢柱脚上，标志着成达万高铁关键节点——上跨遂新联络线上行铁路钢盖梁吊装作业顺利完成。 张勤宝 摄 （C视觉） 成达万 ...

Core Viewpoint - The successful completion of the power line relocation project for the Chengdu-Dazhou-Wanzhou high-speed railway in Nanchong City prioritizes the safety of migratory birds, leading to a design change that moves high-voltage lines away from critical bird migration paths [7][8]. Group 1: Project Details - The 500 kV Nanchong-Changpingshan power line, part of the Chengdu-Dazhou-Wanzhou high-speed railway project, was successfully energized on October 20, 2023, after a significant design alteration [7]. - The original design of the power lines was modified to retreat 6 kilometers to avoid a critical migratory bird route, which is home to over 30,000 migratory birds, including the black-faced spoonbill and black stork [7][8]. - The new design maintains a distance of over 700 meters from the ecological wetland, reducing the risk of bird collisions and minimizing the impact of electromagnetic radiation [8]. Group 2: Environmental Considerations - The decision to alter the power line design was made after extensive consultations with experts and field surveys, emphasizing the importance of protecting migratory birds during their migration season from October to March [7][8]. - Monitoring data indicates that migratory birds in the area typically fly at altitudes between 40 to 45 meters, which overlaps with the electromagnetic fields of high-voltage lines, potentially causing disorientation [7][8]. - The project includes the installation of warning lights and balls on the new power lines to further enhance safety for the birds [8]. Group 3: Strategic Importance - The Chengdu-Dazhou-Wanzhou high-speed railway is a crucial part of China's "eight vertical and eight horizontal" high-speed rail network, supporting national strategies such as the development of the Yangtze River Economic Belt and the Chengdu-Chongqing economic circle [9]. - The railway spans 486.4 kilometers with a design speed of 350 kilometers per hour, highlighting its significance in regional connectivity and economic development [9].

Core Viewpoint - The successful completion of the last steel box girder installation and welding on the Chengdu-Dazhou-Wanzhou High-Speed Railway marks a significant milestone in the construction of the Suining Fujiang Grand Bridge, which is a key control project in the railway line [1] Group 1: Project Details - The Suining Fujiang Grand Bridge is located in Suining City, Sichuan Province, and spans a total length of 5,585.4 meters [1] - The main bridge features a special "H" type structure with a double-tower and double-cable steel-concrete composite girder, with a main span of 305 meters, ranking first in the southwest and second nationwide for this type of bridge [1] Group 2: Construction Progress - The Chengdu-Dazhou-Wanzhou High-Speed Railway has a total length of 477 kilometers and is designed for a speed of 350 kilometers per hour [1] - Currently, 136 tunnels have been constructed, with 130 already completed, and bridge engineering is 86% finished, while roadbed engineering is 96% complete [1] - The project is now entering the phases of ballastless track bed, station building, and electrical engineering [1] Group 3: Economic Significance - The railway line is an important part of China's "Eight Vertical and Eight Horizontal" high-speed rail network, facilitating direct access from Sichuan Province to the Yangtze River Delta and Beijing-Tianjin-Hebei economic zones [1] - The construction of this railway is significant for developing the Chengdu-Chongqing economic circle [1]

Core Insights - Multiple high-speed rail projects in Sichuan are progressing steadily during the National Day holiday, with over 30,000 construction workers on site [1][2] - Significant advancements have been made in the construction of the Xining to Chengdu high-speed railway, with 45% of the overall project completed [1] - The Chengdu North Station expansion and the Chengdu railway station capacity enhancement are ongoing, with all personnel committed to meeting project deadlines [1] Group 1 - The Xining to Chengdu high-speed railway has seen the completion of 6 out of 14 tunnels and 88% of bridge works, with overall project progress at 45% [1] - The Chengdu North Station has completed various supporting projects, including high slope protection and emergency response buildings [1] - The Chengdu railway station is being upgraded to enhance its capacity as a comprehensive transportation hub, with all machinery operating at full speed [1] Group 2 - The Xuyou high-speed railway project has implemented an intelligent production line, achieving 65% of box beam pre-fabrication and 53% of beam installation [2] - The Yukun high-speed railway's main tunnel and bridge works are completed, with 99% of box beam installation finished [2] - The next phase for the Yukun high-speed railway involves the commencement of ballastless track construction to ensure timely operation [2]

Core Viewpoint - During the National Day and Mid-Autumn Festival holidays, construction on six high-speed rail projects in Sichuan continues without interruption, with over 30,000 workers dedicated to advancing the projects [1]. Group 1: Project Progress - The construction of the Xining to Chengdu high-speed railway has made significant progress, with the completion of the last box girder on the 12-kilometer Hequzi Bridge, marking a key milestone [3]. - The overall progress of the Sichuan section of the Xining to Chengdu railway is at 45%, with 6 out of 14 tunnels completed, 88% of bridge works finished, and 70% of the roadbed works completed [3]. - The Chengdu North Station expansion project is actively progressing, with all personnel on-site to ensure the second phase of the station renovation is executed smoothly [4]. Group 2: Construction Techniques and Innovations - The construction site of the Xuyou high-speed railway employs intelligent production lines, achieving standardization of processes, automation of equipment, and visualization of management [4]. - The Xuyou high-speed railway project has completed 407 box girder pre-casts and 329 girder installations, representing 65% and 53% of the total, respectively [4]. - The Yukun high-speed railway's construction is entering a critical phase, with 99% of box girder installations completed and all main tunnel and bridge works finished [6].

Core Viewpoint - The completion of the main structure of the Kaijiangnan Station marks a significant milestone in the Chengda-Wanzhou High-Speed Railway project, which is crucial for enhancing transportation connectivity in the region [1] Group 1: Project Overview - The Kaijiangnan Station has a building area of nearly 8,000 square meters and features a station layout of 2 platforms and 4 tracks [1] - The architectural design of the station is inspired by the character "开" (meaning "open"), symbolizing the unique geographical characteristics and the open, innovative spirit of Kaijiang [1] Group 2: Construction and Technology - Since the construction began in February of this year, the team has implemented advanced safety measures, including video monitoring and AI-based early warning systems, to ensure safety during production [1] - The use of Building Information Modeling (BIM) technology has enabled precise control over project timelines, quality, and risk management, allowing for rapid and balanced progress despite challenges such as limited site space [1] Group 3: Strategic Importance - The Chengda-Wanzhou High-Speed Railway is a vital part of China's "eight vertical and eight horizontal" high-speed rail network, facilitating direct high-speed rail access from Sichuan to the Yangtze River Delta and Beijing-Tianjin-Hebei economic zones [1] - The project includes the construction of seven new stations: Lezhi Station, Pengxi South Station, Yingshan West Station, Quxian North Station, Dazhou South Station, Kaijiangnan Station, and Yuexi Station [1]

Core Viewpoint - The construction of major projects in Sichuan during the "May Day" holiday is crucial for stabilizing economic growth and promoting high-quality development, with significant investments and progress reported across various sectors [1][4]. Group 1: Major Projects and Investments - The China (Mianyang) Science and Technology City Nuclear Medical Health Industry Park has a total investment of approximately 18.6 billion yuan, with an expected annual output value exceeding 50 billion yuan upon completion [1]. - In the first quarter of this year, Sichuan completed investments of 245.53 billion yuan in 810 provincial key projects, achieving an annual investment completion rate of 31% [4]. Group 2: Infrastructure Development - The Yukun High-speed Railway's key project, the Ma'anshan Tunnel, successfully passed through during the holiday, with strict safety measures in place to ensure zero accidents [1]. - The Xiyu High-speed Railway's Xiangyang No. 1 Tunnel has reached its designed length of 12.766 kilometers, with over 150 workers dedicating their holiday to advance the project [3]. Group 3: Renewable Energy Initiatives - The first grid-connected energy storage power station in Sichuan, the Aba Hongyuan Anqu Phase I Photovoltaic Project, is on track to achieve full capacity grid connection by May 15, with an expected annual power generation of 450 million kilowatt-hours [3].