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Effect of geosynthetic reinforcement filled with aggregate on the bearing capacity of sand
In this paper, numerical computations using FLAC code are carried out to investigate the effect of new construction technique combining substitution and reinforcement on the load-settlement of a strip footing on reinforced sand bed. The purpose is to examine numerically the improvement effect of using full wraparound ends of geosynthetic reinforcement for both cases: filled with the same founfation soil sand and filled with aggregate. A parametric study was carried out to investigate the effect of burial depth, width, tensile stiffness of reinforcement and on the effectiveness of the proposed full wraparound ends of reinforcement filled with aggregate. The results indicate that the proposed technique needs less quantity of reinforcement and aggregate than two planar reinforcements, requires a lower land space for creating a reinforced sand bed system and provides a significant improvement in the bearing capacity and stiffness of the sand bed.
Width of footing: B; b: width of the planar reinforcement; u: depth of the first planar reinforcement layers; h: vertical spacing between planar reinforcement layers; N: number of planar reinforcement layers; b': width of full wraparound ends of geosynthetic reinforcement; h': vertical of the full wraparound ends of geosynthetic reinforcement; u' depth of the full wraparound ends of geosynthetic reinforcement; BCR: bearing capacity ratio; BCRs: bearing capacity ratio at a settlement level s; qu: bearing capacity of footing on reinforced soil; S: settlement of the footing; EA: tensile stiffness of geosynthetic layers; φ: angle of internal friction; ψ: dilation angle; G: shear modulus of soil; K: bulk modulus of soil; γ: unit weight of soils
Effect of geosynthetic reinforcement filled with aggregate on the bearing capacity of sand
In this paper, numerical computations using FLAC code are carried out to investigate the effect of new construction technique combining substitution and reinforcement on the load-settlement of a strip footing on reinforced sand bed. The purpose is to examine numerically the improvement effect of using full wraparound ends of geosynthetic reinforcement for both cases: filled with the same founfation soil sand and filled with aggregate. A parametric study was carried out to investigate the effect of burial depth, width, tensile stiffness of reinforcement and on the effectiveness of the proposed full wraparound ends of reinforcement filled with aggregate. The results indicate that the proposed technique needs less quantity of reinforcement and aggregate than two planar reinforcements, requires a lower land space for creating a reinforced sand bed system and provides a significant improvement in the bearing capacity and stiffness of the sand bed.
Width of footing: B; b: width of the planar reinforcement; u: depth of the first planar reinforcement layers; h: vertical spacing between planar reinforcement layers; N: number of planar reinforcement layers; b': width of full wraparound ends of geosynthetic reinforcement; h': vertical of the full wraparound ends of geosynthetic reinforcement; u' depth of the full wraparound ends of geosynthetic reinforcement; BCR: bearing capacity ratio; BCRs: bearing capacity ratio at a settlement level s; qu: bearing capacity of footing on reinforced soil; S: settlement of the footing; EA: tensile stiffness of geosynthetic layers; φ: angle of internal friction; ψ: dilation angle; G: shear modulus of soil; K: bulk modulus of soil; γ: unit weight of soils
Effect of geosynthetic reinforcement filled with aggregate on the bearing capacity of sand
Benmebarek, S. (author) / Djeridi, S. (author) / Benmebarek, N. (author)
International Journal of Geotechnical Engineering ; 14 ; 589-602
2020-08-17
14 pages
Article (Journal)
Electronic Resource
Unknown
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