ABSTRACT
Soil nailing permits ground deformation, but how much deformation is permissible from the viewpoint of ground stability is unclear. For steeply cut slopes (slope angle: 63° to 90°) stabilized by soil nailing, allowable displacement during excavation is an important consideration in stability management. A number of soil nailing cases were studied and a series of full-scale model tests was conducted to investigate allowable displacements and strain rates indicated by normalized horizontal top-of-slope displacement from the standpoint of slope stability management during excavation.
