国庆中秋假期，延榆高铁建设者坚守施工一线，紧锣密鼓地推进施工任务，不断刷新建设进度条。 由西成客专陕西公司建设、中铁十四局承建的延榆高铁6标段全长21.96千米，桥隧占比达90.5%。该项目负责人贾 克宝介绍，由于全标段位于黄土梁峁沟壑区，沟谷岸坡陡峻，地形切割严重，穿越黄土滑坡、溜坍、浅埋段等不良地 质地区，极易发生变形、掉块、塌方、冒顶等事故，安全要求高，施工难度大。 "项目部严格遵循'安全第一、预防为主、综合治理'施工原则，实行领导干部带班和关键岗位值班制度，重点盯守 高风险作业环节，及时协调解决现场问题。同时，项目团队基于BIM技术动态优化施工工序，合理协调各类机械设备 有序运转，在节假日期间通过弹性排班机制重点保障掘进、出渣等关键工序的连续性运转，确保隧道安全高效掘 进。"贾克宝说。 延榆高铁是国家"八纵八横"高速铁路网中包（银）海通道和陕西省"米"字形高铁网的重要组成部分。2028年建成 后，西安至榆林的铁路运行时间将由现在的5个小时缩短至2个小时，全面实现陕西"市市通高铁"目标，并有效改善陕 北地区交通基础设施条件，助力革命老区经济社会高质量发展。（记者：刘印） 10月6日，在位于榆林市清涧县的 ...

清晨的陕北高原，西延高铁建设工地已响起此起彼伏的机器轰鸣。中铁二十一局的建设者们头戴安全 帽，排队进入西延高铁柳燕隧道，头灯光束在岩壁间来回晃动。 这条高铁不仅是1小时通达西安的便捷通道，更是革命老区振兴发展的"加速器"。延安洛川县，果农李 亚民望着新建的高铁站房，眼里满是期待："以后外出推销苹果会更方便，来洛川收购的外地客商肯定 也会更多。" 从延安出发，更多高铁通道正在加速延伸。中铁十一局延榆铁路榆林制梁场，一孔孔箱梁正在加快生 产，这些箱梁将搭建起延安通往榆林的高铁动脉。"延榆高铁将与西延高铁连接贯通，推动延安更深融 入关中平原城市群与呼包鄂榆城市群，为老区发展注入新动能。"中铁十一局延榆铁路榆林制梁分公司 项目经理师保磊说。 一根根钢轨向远方延伸，一座座桥梁跨越沟壑。在这片镌刻着红色记忆的土地上，高铁建设者们用汗水 与智慧编织的交通网，将承载着老区人民对美好生活的向往，驶向更加辽阔的未来。 （文章来源：新华社） 作为国家"十四五"时期重点建设项目，西延高铁是国家高速铁路网包（银）海通道的重要组成部分，线 路全长299.8公里，设计时速350公里。西延高铁开通后，西安到延安的铁路运行时间将缩短至1小时左 ...

Group 1: Infrastructure Development - The successful excavation of the Tongbaiyuan No.1 Tunnel, the longest tunnel of the Yan-Yu High-speed Railway, has reached 2000 meters, with a total length exceeding 14,000 meters. The railway will reduce travel time from Xi'an to Yulin from 5 hours to 2 hours upon completion [1] - The construction of the Luo-Ruo Railway, approximately 297 kilometers long, has begun track laying, which will enhance the "road-to-rail" transport capacity in Xinjiang by connecting with the Lanzhou-Xinjiang Railway and the Ge'ku Railway [2] - The Hefei-Wuhan section of the Yangtze River High-speed Railway has entered full construction phase, with the first steel truss beam of the Shi River Bridge successfully installed. The railway is expected to be completed by 2028 [3] Group 2: Renewable Energy Projects - The expansion of the Tianjin South 1000 kV UHV substation, a key project under the national "14th Five-Year Plan," has commenced operation, capable of transmitting over 40 billion kWh of electricity annually, enhancing the transmission capacity of clean energy from Inner Mongolia and Hebei to Tianjin [4] - The construction of the largest single-unit solar thermal storage project in China, the CGN Delingha 1 million kW solar thermal storage integrated project, has made progress with all heliostats installed and entering the equipment debugging phase. The project is expected to be operational by the end of this year, delivering 1.8 billion kWh of green electricity annually, equivalent to saving about 550,000 tons of standard coal and reducing carbon dioxide emissions by 1.3 million tons [4]

Infrastructure Development - Major engineering projects are being actively promoted across various regions to support high-quality economic development [1] - The construction of the Yan-Yu High-speed Railway is progressing, with the longest tunnel, Tongbaiyuan No. 1, successfully excavated to 2000 meters, reducing travel time from Xi'an to Yulin from 5 hours to 2 hours upon completion [3] - The construction of the Robu Lake to Ruoqiang Railway has begun, with a total length of approximately 297 kilometers, enhancing the "road-to-rail" transport capacity in Xinjiang [5] - The comprehensive three-dimensional transportation network in the Yangtze River Economic Belt is being improved, with the successful completion of the Jinhua to Jiande High-speed Railway's Xin'an River Grand Bridge, connecting multiple regional economic circles [7] - The Hefei to Wuhan section of the Yangtze River High-speed Railway has entered full construction, with the first steel truss beam of the Shihe River Grand Bridge installed, expected to be completed by 2028 [9] Renewable Energy Projects - The construction of major renewable energy projects is accelerating, with the Tianjin South 1000 kV UHV substation expansion project now operational, capable of transmitting over 40 billion kilowatt-hours of electricity annually [11] - The largest solar thermal storage project under construction in China, the CGN Delingha 1 million kW solar thermal storage integrated project, has completed the installation of its key facility, the heliostat, and is entering the equipment debugging phase, expected to be operational by the end of this year [13] - The project is anticipated to deliver 1.8 billion kilowatt-hours of green electricity annually, equivalent to saving approximately 550,000 tons of standard coal and reducing carbon dioxide emissions by 1.3 million tons [13]