Contribution of suction on the stability of reinforced-soil retaining wall

GOFAR, NURLY and Hanafiah, Hanafiah (2018) Contribution of suction on the stability of reinforced-soil retaining wall. MATEC Web of Conferences, 03004 (1). pp. 1-10. ISSN 2261-236X

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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.

Item Type: Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA1-2040 Engineering (General). Civil engineering (General) > TA169.H37 Reliability (Engineering), Engineering design, Civil engineering
Divisions: 03-Faculty of Engineering > 22201-Civil Engineering (S1)
Depositing User: Hanafiah Hanafiah
Date Deposited: 29 May 2020 06:39
Last Modified: 29 May 2020 06:39
URI: http://repository.unsri.ac.id/id/eprint/29502

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