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    Volume 45, Issue 1 (January 2017)

    Special Issue Paper

    Laboratory Testing and Numerical Simulation of a Strip Footing on Geosynthetically Reinforced Loose Sand

    (Received 21 March 2016; accepted 2 November 2016)

    Published Online: 2017

    CODEN: JTEVAB

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    Abstract

    The objective of this paper was to study the bearing capacity and loading behavior of strip footings on geosynthetically reinforced loose sand. Laboratory loading tests were conducted on a rigid steel strip footing in a 0.9 by 0.9 by 1.0m sand box. Woven geotextile was used as reinforcement material. A finite difference program was used to simulate the load-settlement behavior of this footing. Two constitutive (Mohr-Coulomb and Double-Yield) models were utilized for the loose sand. Direct shear tests were performed to obtain the parameters needed for numerical simulation. The unreinforced ultimate bearing capacity obtained from this study ranges between theoretical values calculated by assuming general and local shear failure conditions. The bearing capacity predicted by these two soil models match with values obtained from sand box tests. However, the Double-Yield model outperforms the traditional Mohr-Coulomb model in simulating the loading behavior of this strip footing.


    Author Information:

    Lai, J.
    Dept. of Construction Engrg., Chaoyang Univ. of Tech.,, Taichung City,

    Yang, B. -H.
    Dept. of Construction Engrg., Chaoyang Univ. of Tech.,, Taichung City,


    Stock #: JTE20160444

    ISSN:0090-3973

    DOI: 10.1520/JTE20160444

    Author
    Title Laboratory Testing and Numerical Simulation of a Strip Footing on Geosynthetically Reinforced Loose Sand
    Symposium ,
    Committee D18