G. Zheng, X. S. Cheng, Y. Diao, & H. X. Wang. (2011). Concept and Design Methodology of Redundancy in Braced Excavation and Case Histories. Geotechnical Engineering Journal of the SEAGS & AGSSEA, 42(3), 13–21. https://doi.org/10.14456/seagj.2011.11