Geosynthetics International · 2013 · 87 citations · 32 references
EngineeringCivil EngineeringFoundation EngineeringGeotechnical EngineeringSoil MechanicsBearing CapacityBearing Capacity ImprovementEarth ReinforcementGeosynthetic ReinforcementSoil ReinforcementSoil-structure InteractionBearing Capacity AssessmentFailure Mechanisms Of Reinforced SoilGeocell ReinforcementGeotechnical PropertiesReinforced SoilSoil - Foundation InteractionSoil Bearing CapacitySoil-foundation Interaction
Geocell geosynthetics, originally designed to enhance soil bearing capacity, are widely used in geotechnical applications such as retaining walls, slope protection, road bases, and channel lining, especially to mitigate risks in soft soils. The paper proposes a method to predict the bearing capacity of geocell‑reinforced soils, incorporating soil foundation capacity and geocell stress‑dispersion and confinement effects. The method is validated against laboratory experiments from multiple researchers and benchmarked against existing calculation approaches. The method yields bearing capacity predictions that fit experimental data better than other methods and performs well across various geocell geometries, soil types, infill materials, and loading shapes.
ABSTRACT: Geocell geosynthetics have been used in several areas of geotechnical engineering, such as retaining walls, slope protection against erosion, road bases and channel lining. However, geocell was initially designed to improve soil bearing capacity. Performing works in soft soils is always a challenge to geotechnical engineering and involves risks, such as (global and local) soil failures and large settlements. As reinforcement, geocell satisfactorily increases the bearing capacity of the soil, enabling its use. In this regard, this paper presents a method for predicting the bearing capacity of geocell-reinforced soils, taking into account the soil foundation bearing capacity and the geocell reinforcement mechanisms – the stress dispersion effect and the confinement effect. The proposed method is verified with the results of laboratory experiments by several researchers and compared with other calculation methods. The results show that the calculated bearing capacity obtained by this method give a better fit to the experimental results than other methods. The method also proved to be a good approach for different geocell characteristics (geometry), foundation soil and geocell infill (sand and clay) and loading shape (circular, rectangular and strip).
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Transportation Research Record
Anne Vingaard Olesen, Erik Kjems, Kristian Hegner Reinau et al. · 2016 · 11.4K citations