Lou, Yanbin, and Hao Cui. “Research on In-Situ Expansion Construction Technology for Existing Super-Large Section Tunnels”. International Journal of Architectural Engineering and Design 3, no. 1 (March 17, 2026): 22–31. Accessed March 23, 2026. https://soapubs.com/index.php/IJAED/article/view/1506.