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A Parametric Study of Geosynthetic Reinforced Soil (GRS) Low Height Walls with Concrete Block Facing in FLAC Software

Selseleh, Amin | 2016

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 49201 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Pak, Ali
  7. Abstract:
  8. Because of seismic flexibility, aesthetics, economic advantage and rapid construction of reinforced soil walls, application of these walls has raised tremendously since 1970’s. The early reinforced soil retaining walls used metallic srips to reinforce the soil with precast concrete panels as facing, however, since 1990’s using of geosynthetics to reinforce these walls with modular concrete block facing have replaced the old fashion. In this study, a finite difference code was developed in FLAC software. After verification of the numerical modeling procedure, a wall with 3.6m height reinforced by geosynthetics was simulated. In the course of numerical simulations the stage of counstruction, soil compaction, connections were simulated. Static responses including the lateral displacement, crest surface settlement, total reinforcement load, toe reaction force and distribution of lateral earth pressure were investigated. Finally, parametric study on the behavior of geosynthetics reinforced soil (GRS) wall under end of construction and surcharge-loading conditions was carried out. Parameters that were studied include wall facing batter, connection type, toe restraint, foundation stiffness and surcharge footing setback
  9. Keywords:
  10. Reinforced Soil ; Geosynthetic ; Finite Difference Method ; FLAC Software ; Flexible Retaining Wall ; Parametric Study ; Retaining Wall

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