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Bearing capacity of strip footings supported on geocell-reinforced sand
N. R. Krishnaswamy,
Published in
2001
Volume: 19
   
Issue: 4
Pages: 235 - 256
Abstract
This paper presents the results from laboratory-model tests on a strip footing supported by a sand bed reinforced with a geocell mattress. The parameters varied in the testing program include pattern of geocell formation, pocket size, height and width of geocell mattress, the depth to the top of geocell mattress, tensile stiffness of the geogrids used to fabricate geocell mattress and the relative density of the sand. With the provision of geocell reinforcement, failure was not observed even at a settlement equal to 50% of the footing width and a load as high as 8 times the ultimate bearing capacity of the unreinforced sand. Based on the model test results, the depth of placement and the dimensions of the geocell layer for mobilising maximum bearing capacity improvement have been determined. In addition to the tensile strength of reinforcement, the aperture size and orientation of ribs of the geogrid used to fabricate geocell mattress must be taken into account while evaluating its contribution to the improvement in the performance. © 2001 Elsevier Science Ltd. All rights reserved.
About the journal
JournalGeotextiles and Geomembranes
ISSN02661144
Open AccessNo
Concepts (10)
  •  related image
    Bearing capacity
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    Reinforcement
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    Sand
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    Tensile strength
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    GEOCELL MATTRESSES
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    Strip footings
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    Geotextiles
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    Footing
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    Geosynthetics
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    Reinforced earth