Construction
| Tue 07 May 2024
Beijing, May 8 -- China Railway Tunnel Group and China Railway Tunnel Survey & Design Institute have been granted a patent for construction device for tunnel primary support. Wang Yue, He Wei, Zhuo Yue, Wang Hua, Zou Chong, Wang Baiquan, Lin Chungang, He Xiongfei, Yang Chaoshuai, Niu Fusheng, Wang Chunling, Shang Wei and Zhang D..