Catch up locals' news in English
2024-04-09T03:10:59.764Z
The right hole of Lehua Tunnel, the deepest highway tunnel in Qinghai Province, is connected. The tunnel is located in Qutan Town, Ledu District, Haidong City, and Bayan Town, Hualong County.
The total length of the right line of the tunnel is 5,933 meters, all of which are grade IV and V surrounding rocks, of which grade V accounts for 74.2% and grade IV accounts for 25.8%. The regional topography, geology, and hydrological environment are complex and unfavorable.
The 9,640-meter-long Guangzhou-Zhanjiang High-speed Railway Zhanjiang Bay Undersea Tunnel is completed The 9,640-meter-long Guangzhou-Zhanjiang High-speed Railway Zhanjiang Bay Undersea Tunnel is completed. It is the largest diameter cross-sea high-speed rail shield tunnel with the longest single-head excavation distance in my country...
An important node in the construction of the Guangzhou-Zhanjiang High-speed Railway, the Zhanjiang Bay Undersea Tunnel is completed The Zhanjiang Bay submarine tunnel, an important node of the high-speed railway, was successfully completed. Construction of the entire line started on June 30, 2020, with a total investment of approximately 99.8 billion yuan...
