Deformation analysis of foundation pit supported by soil nailing wall-anchored pile system:Taking a foundation pit excavation project in Kunming as example

The supporting scheme of soil nailing wall combined with anchored pile was applied in a foundation pit excavation project in Kunming.The soil horizontal displacement and soil settlement around the foundation pit,and the soil settlement near the adjacent buildings were monitored and analyzed.The result shows that the maximum horizontal displacement is about 20 mm,the maximum soil settlement is 22 mm,and the soil settlement near the adjacent buildings is about 20 mm.All the soil deformation values are smaller than the prewarning value,showing that the scheme meets the foundation excavation requirement.