包银高铁开通运营首日纪实

Core Points - The Baoyin High-speed Railway officially opened on December 23, 2023, marking the full operation of the line from Baotou to Huinong [1][3] - The railway covers a total length of 422 kilometers, with 403 kilometers in Inner Mongolia and 19 kilometers in Ningxia [1][3] - The initial operation allows for a maximum speed of 250 kilometers per hour, with up to 12 train services daily, significantly reducing travel time from Baotou to Yinchuan to 2 hours and 38 minutes, a reduction of 3 hours and 20 minutes compared to previous services [3][5] Infrastructure and Engineering - The construction faced significant challenges due to complex terrains including rivers, wetlands, deserts, and mountains, requiring innovative engineering solutions [5] - Notable achievements include the use of large-span steel-concrete composite beams and a new seismic system in high seismic zones, as well as the construction of the longest high-speed railway tunnel in Inner Mongolia [5] - The railway enhances the national high-speed rail network, connecting Beijing, Hebei, Inner Mongolia, Ningxia, and Gansu, and serves as a vital transportation artery [5]