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Title: Contribution of suction on the stability of reinforced-soil retaining wall
Authors: Gofar, Nurly
Keywords: DRNTU::Engineering::Civil engineering
Reinforced-soil Retaining Wall
Issue Date: 2018
Source: Gofar, N., & Hanafiah. (2018). Contribution of suction on the stability of reinforced-soil retaining wall. MATEC Web of Conferences, 195, 03004-. doi:10.1051/matecconf/201819503004
Series/Report no.: MATEC Web of Conferences
Abstract: Existing design methods of a reinforced-soil retaining wall were established for walls with cohesionless soil backfill. However, local soil has been used widely in the construction of such a wall for economic reasons. Laboratory and numerical studies have pointed out the merit of using cohesive backfill in association with geosynthetic reinforcement. Since the compacted soil was in an unsaturated condition during the construction of the reinforced wall, the apparent cohesion derived from both soil mineralogy and suction could contribute to the stability of the wall. This paper considers methods to include the suction contribution to the existing design guidelines based on slope stability analysis, i.e. simplified method and simplified stiffness method. The analyses were carried out on a case study of geosynthetics reinforced soil retaining wall. Results show that the contribution of suction as part of cohesion existing in the cohesive backfill could be considered for the stability analysis of reinforced soil retaining walls using the available design guidelines.
DOI: 10.1051/matecconf/201819503004
Rights: © 2018 The Authors. Published by EDP Sciences. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles

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