21日，在金建高铁兰溪东站高铁站内，随着第一对500米长钢轨在工人与大型设备的精准配合下稳 稳落定，新建金华至建德高速铁路兰溪至建德段铺轨施工正式启动，项目建设取得重大进展。 金建高铁作为国家中长期铁路网规划和浙江省铁路建设"八八计划"项目之一，自既有金华站引出， 向北经兰溪市、建德市，在建德站接入杭黄高铁，全长64.51公里，设计时速250公里。沿线设金华、兰 溪东、大洋、建德等4座车站，其中兰溪东站和大洋站为新建车站。本次启动铺轨的兰溪至建德段，需 完成正线铺轨87.1公里，站线铺轨6.63公里，并铺设道岔30组。 截至7月底，金建高铁累计完成投资83.033亿元。当前，项目路基、桥梁、隧道工程均已全部贯 通，站房工程与"四电"工程正有序推进，铺轨工程全面加速实施。（记者 张帆 金思成 通讯员 徐张 时 宽兵） 为确保铺轨工程安全、优质、高效推进，建设者高峰期可组织1000余名建设者同步奋战，单日铺轨 进度最高可达4.5公里。 ...

Group 1 - The Jin Jian High-speed Railway has officially entered the long rail storage phase with the arrival of a 500-meter long rail transport train at the Lankxi East Station [1] - The railway segment from Lankxi East to Jiande Station has a total length of 43.5 km, with 87.1 km of main line track laid, 6.63 km of station line track, and 30 sets of turnouts [1] - The Jin Jian Railway, which connects Jinhua and Jiande, is a crucial transportation link with a total length of 64.51 km and a design speed of 250 km/h [1] Group 2 - Upon completion and operation, the Jin Jian High-speed Railway will connect multiple economic circles, including the Huangshan Tourism Economic Circle and the Central Zhejiang Urban Agglomeration [2] - The railway will significantly enhance travel efficiency for residents in the western part of Hangzhou, allowing direct access to Lankxi without the need to detour to Hangzhou East Station [2] - The travel time will be greatly reduced compared to the current 2-hour self-driving or the need for transfers on conventional trains [2]

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]