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Technical paper discussion: soil nailing

By R J Bridle and B I G Barr. This paper was first publsihed in GE’s July 1990 edition.

Introduction

The paper by Jewell and Pedley, published in GE April 1990, imagines for soil-naled or reinforced earth structures a collapse model in which the reinforcement fails by forming two plastic hinges. These hinges occur either side of a zone, along the line of a slip surface, which has been distressed by the slipping. Final collapse take place by fracture at the hinge, presumably in all nails.

The deformation of the nail described in the Bridle paper is commonly used by several workers int he field but was borrowed, as acknowledged, from a publication by Juran.

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