Abstract: A combination of soil nailed upper slope and anchored pile wall for the lower wall was applied to the foundation pit excavation. The proportion of upper slope and lower wall was optimized by global stability and external stability analyses.  During construction, with strict QA/QC, detailed plan for emergency response and close field instrumentation, the monitored movement of the slope and the wall was kept below target value.

Key words: Soil Nail, Anchored Wall, Deep Excavation, Field Instrumentation