Construction
| Tue 13 Jan 2026
Beijing, Jan. 13 -- Chongqing Design Institute has sought patent for Gradient Design Method and System for Tunnel Long Uphill Section Based on Trucksim. This invention was developed by Ma Yue, He Lu, Lyu Dawei, Qu Huiming, Zhang Yongkui, Chen Guangzhi, He Qian, Xu Lulu, Chen Caiyu, Tan Yan, Hui Rui, Wang Jingyi, Cheng Weihang, L..