太锡铁路河北段荷包隧道顺利贯通

Group 1 - The Tai-Xi Railway's Hebei section has successfully completed the Huo Bao Tunnel, facilitating subsequent construction activities such as track laying and beam erection [1][3] - The Tai-Xi Railway spans 117.35 kilometers, connecting Tai Zi Cheng Station to Xi Lin Hao Te Station, and will end the history of no railway access in areas like Zhangbei and Guyuan [3] - The railway will enhance the rapid passenger transport corridor to Beijing for the northern Baishan region, promoting regional collaborative development and improving travel convenience for local residents [3] Group 2 - The Huo Bao Tunnel is 1980 meters long and located in a challenging highland area, with construction conditions made difficult by winter temperatures dropping to -30 degrees Celsius [3][5] - The construction is managed by Beijing-Kunming Intercity Railway Co., Ltd., with China Railway 22nd Bureau Group responsible for the actual building work [5] - A comprehensive construction plan was implemented, including dual-direction excavation and 24-hour shifts, to ensure safety and efficiency, along with measures to maintain a working temperature of around 20 degrees Celsius inside the tunnel [5]