PERFORMANCE OF GEOSYNTHETIC REINFORCED SLOPES AT FAILURE. DISCUSSIONS AND CLOSURE

Two discussions of a paper with the aforementioned title by J.G. Zornberg, N. Sitar, and J.K. Mitchell, published in this journal (Volume 124, Number 8, August 1998), are presented. The first discusser suggests a new approach for designing geosynthetic reinforced steep slopes. Central to his approach is the use of a hybrid design procedure in which peak soil shear strength properties would be used to locate the critical slip surface, while the residual soil shear strength properties would subsequently be used along the located slip surface to compute the reinforcement requirements. The remaining two discussers present numerical simulations that validate the authors' experimental results in relation to the reinforcement tension distribution with depth, the location of the potential rupture surface, and soil-reinforcement stress-strain compatibility. These discussers indicate concern that the centrifuge simulations do not reproduce compaction-induced stresses that may occur in actual prototype structures. Discussion is followed by closure from the authors.

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  • English

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  • Accession Number: 00788974
  • Record Type: Publication
  • Contract Numbers: CMS-9309345, 32451-GS-ISP, 32708-AAS
  • Files: TRIS
  • Created Date: Mar 23 2000 12:00AM