中铁三局承建的宜昌三峡疏港铁路杨木岭隧道顺利贯通

Core Points - The completion of the Yangmuling Tunnel marks a significant milestone in the construction of the Yichang Three Gorges Port Railway, with all tunnels now fully connected [1] - The railway spans 39.59 kilometers and includes 13 tunnels and 29 bridges, achieving a bridge-tunnel ratio of 89% [1] - The project is crucial for enhancing the transportation infrastructure in Hubei Province and will facilitate seamless water-rail intermodal transport, significantly reducing logistics costs [4] Construction Details - The Yangmuling Tunnel is 3,648.3 meters long, primarily composed of rock grades III and IV, with a maximum burial depth of approximately 429 meters [1] - The construction faced challenges due to crossing three fault zones and five karst development areas, necessitating strict control of mechanical vibrations to minimize disturbances to existing infrastructure [1][3] - A comprehensive monitoring system was established during critical construction phases, utilizing advanced equipment to ensure safety and precision in tunneling operations [3] Strategic Importance - The Yichang Three Gorges Port Railway is the first domestic freight railway with transshipment capabilities, expected to enhance regional connectivity and promote socio-economic development [4] - The railway will connect with several existing railways, improving logistics efficiency in southwestern Hubei, the Jianghan Plain, and northern Hunan [4]