Abstract: Combined with an engineering case history, a deep excavation support anchor failure may cause potential risks. A comprehensive analysis of the causes from the engineering in formation, anchor construction quality to design and other factors are performed. The corresponding emergency measures, including backfill of excavated area, existing anchor strengthening and lowering the groundwater level, were proposed. The final approach was to unload the excavated area.

Key words: Excavation Support, Deep Excavation, Emergency Response, Engineering Case History