Jin-Gu Haihe tunnel breakthrough accelerates Tianjin–Weifang HSR progress
The Jin-Gu Haihe Tunnel, a key project for the Tianjin–Weifang High-Speed Railway, was completed on Thursday. The final breakthrough was achieved by the domestically produced super-large-diameter tunnel boring machine, Jincheng No 1, which installed the final segment ring. The Tianjin–Weifang HSR spans 348.9 kilometers, linking Tianjin Binhai Station with Weifang North Station, features 10 stations…









