Research on Construction Technology for Shield Tunnelling with Small Curve Radius under Shallow Cover ConditionsBen Niu, Lihui Huang, Jianwei Jia, Ying Liu, Zexin Zhang, Yanxiang Jiang and Hongying SongE3S Web Conf., 686 (2026) 02017DOI: https://doi.org/10.1051/e3sconf/202668602017