Soil nailing is an in-situ soil reinforcement technique which has been used during the past two decades to retain excavations or stabilize slopes. In Europe, the French and German methods and in United States, the Davis method, are the design methods that have been most commonly used. These methods only control the global stability of the wall and pull out of the nails. In this paper a design approach which provides a rational estimate of maximum tension and deflection of nails is introduced. To evaluate these forces and deflections a user friendly computer code (soiln) has been written. Examples of applications of this program are provided and the results are compared with those obtained from other methods.
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