SOLUTIONS FOR THE REINFORCED FILL OVER A VOID PROBLEM CONSIDERING A NEW GEOSYNTHETIC STIFFNESS LIMIT STATE
FM Naftchali, RJ Bathurst
In the proceedings of: GeoSaskatoon 2023: 76th Canadian Geotechnical ConferenceSession: Stabilisation and Reinforcement
ABSTRACT: Several closed-form analytical methods for the design of a geosynthetic-reinforced fill spanning a void appear in national standards and codes in the UK, France, Germany and in the Eurocode. In this paper, the reinforced void problem is examined using the UK BS 8006-1 (2010) method. A simple hyperbolic stiffness model for reinforcement geosynthetics that is applicable to low load levels, is used to model the constant-load isochronous creep-strain behaviour of these materials for fills under operational (serviceability) conditions. Vertical deformation, reinforcement strain, reinforcement strength, and reinforcement stiffness limit states are identified in the paper with special focus on the stiffness limit state which has not been identified in design codes as a separate limit state. This limit state can control design outcomes as demonstrated in the paper.
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Naftchali, FM, Bathurst, RJ (2023) SOLUTIONS FOR THE REINFORCED FILL OVER A VOID PROBLEM CONSIDERING A NEW GEOSYNTHETIC STIFFNESS LIMIT STATE in GEO2023. Ottawa, Ontario: Canadian Geotechnical Society.
@inproceedings{Naftchali_GEO2023_13,
author = {{Naftchali, FM}, {Bathurst, RJ}}
title = {SOLUTIONS FOR THE REINFORCED FILL OVER A VOID PROBLEM CONSIDERING A NEW GEOSYNTHETIC STIFFNESS LIMIT STATE }
booktitle = {Proceedings of the 76th Canadian Geotechnical Conference}
year = {2023}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }
title = {SOLUTIONS FOR THE REINFORCED FILL OVER A VOID PROBLEM CONSIDERING A NEW GEOSYNTHETIC STIFFNESS LIMIT STATE }
booktitle = {Proceedings of the 76th Canadian Geotechnical Conference}
year = {2023}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }