Abstract
Deformation of excavated slope stabilized by soil nailing is unclear concerning its amount and mode. A series of full-scale model tests was conducted and a number of measuring data of soil nailing cases were studied to investigate these problems.
The following results are obtained. When the slope is stable, mode of deformation is a toppling. At failure a shape of sliding is approximately a circular. In cases of soil ground, allowable displacements indicated by normalized horizontal top-of-slope displacement (δh/H) is about 0.4%. Stability management method using δh/H is proposed.
