Contribution of suction on the stability of reinforced-soil retaining wall
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 back...
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sg-ntu-dr.10356-898392020-03-07T11:43:38Z Contribution of suction on the stability of reinforced-soil retaining wall Gofar, Nurly Hanafiah School of Civil and Environmental Engineering DRNTU::Engineering::Civil engineering Reinforced-soil Retaining Wall Suction 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. Published version 2018-10-24T03:13:08Z 2019-12-06T17:34:39Z 2018-10-24T03:13:08Z 2019-12-06T17:34:39Z 2018 Journal Article 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 https://hdl.handle.net/10356/89839 http://hdl.handle.net/10220/46408 10.1051/matecconf/201819503004 en MATEC Web of Conferences © 2018 The Authors. Published by EDP Sciences. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 10 p. application/pdf |
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DRNTU::Engineering::Civil engineering Reinforced-soil Retaining Wall Suction Gofar, Nurly Hanafiah Contribution of suction on the stability of reinforced-soil retaining wall |
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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. |
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School of Civil and Environmental Engineering |
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School of Civil and Environmental Engineering Gofar, Nurly Hanafiah |
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Article |
author |
Gofar, Nurly Hanafiah |
author_sort |
Gofar, Nurly |
title |
Contribution of suction on the stability of reinforced-soil retaining wall |
title_short |
Contribution of suction on the stability of reinforced-soil retaining wall |
title_full |
Contribution of suction on the stability of reinforced-soil retaining wall |
title_fullStr |
Contribution of suction on the stability of reinforced-soil retaining wall |
title_full_unstemmed |
Contribution of suction on the stability of reinforced-soil retaining wall |
title_sort |
contribution of suction on the stability of reinforced-soil retaining wall |
publishDate |
2018 |
url |
https://hdl.handle.net/10356/89839 http://hdl.handle.net/10220/46408 |
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1681036811464343552 |