Research on an intelligent monitoring system for the entire tunnel construction process based on IoT and digital twinCanxin Huang, Liangpeng Wan, Guangyi Shi, Huixiang Sun, Jun Wang and Chong ZhangInt. J. Metrol. Qual. Eng., 17 (2026) 4DOI: https://doi.org/10.1051/ijmqe/2025014