长赣高铁江西段主体工程开工建设

Core Viewpoint - The commencement of construction for the Lianhua Tunnel marks the full-scale construction phase of the Jiangxi section of the Chang-Gan High-Speed Railway, which is a significant part of China's "Eight Vertical and Eight Horizontal" high-speed rail network [1][3]. Group 1: Project Overview - The Chang-Gan High-Speed Railway spans 429.5 kilometers from Changsha, Hunan to Ganzhou, Jiangxi, with a design speed of 350 kilometers per hour [3]. - The Jiangxi section has a total length of 297.6 kilometers, featuring 176 new bridges and 83 tunnels, resulting in a bridge-tunnel ratio of 88.24% [3]. - There will be nine stations in Jiangxi, with most being newly constructed, and the project is expected to take five years to complete [3]. Group 2: Technical Aspects - The Lianhua Tunnel, located in Lianhua County, is one of the seven high-risk tunnels in the Jiangxi section, measuring 4.9 kilometers in length [5]. - The project team employs advanced geological forecasting technologies and mechanized equipment to ensure construction safety and efficiency [5]. Group 3: Impact on Transportation - Upon completion, the railway will significantly reduce travel times, with the journey from Changsha to Ganzhou cut from approximately 4 hours to as fast as 1.5 hours, and from Pingxiang to Ganzhou reduced to about 1 hour [5].