Micromechanical aspects of liquefaction-induced lateral spreading

U. El Shamy, M. Zeghal, R. Dobry, S. Thevanayagam, A. Elgamal, Tarek Abdoun, C. Medina, R. Bethapudi, V. Bennett

    Research output: Contribution to journalArticle

    Abstract

    This paper reports the results of model-based simulations of 1-g shake table tests of level and sloping saturated granular soils subject to seismic excitations. The simulations utilize a transient fully coupled continuum-fluid discrete-particle model of water-saturated soils. The fluid (water) phase is idealized at a mesoscale using an averaged form of Navier-Stokes equations. The solid particles are modeled at the microscale as an assemblage of discrete spheres using the discrete element method (DEM). The interphase momentum transfer is accounted for using an established relationship. The employed model reproduced a number of response patterns observed in the 1-g experiments. In addition, the simulation results provided valuable information on the mechanics of liquefaction initiation and subsequent occurrence of lateral spreading in sloping ground. Specifically, the simulations captured sliding block failure instances at different depth locations. The DEM simulation also quantified the impact of void redistribution during shaking on the developed water pressure and lateral spreading. Near the surface, the particles dilated and produced an increase in volume, while the particles at deeper depth locations experienced a decrease in volume during shaking.

    Original languageEnglish (US)
    Article number003005QGM
    Pages (from-to)190-201
    Number of pages12
    JournalInternational Journal of Geomechanics
    Volume10
    Issue number5
    DOIs
    StatePublished - Oct 1 2010

    Fingerprint

    liquefaction
    discrete element method
    simulation
    water
    momentum
    mechanics
    momentum transfer
    interphase
    fluid
    Navier-Stokes equations
    soil
    void
    sliding
    methodology
    testing
    particle
    experiment
    fluids

    Keywords

    • Computational fluid dynamics technique
    • Discrete element
    • Discrete elements
    • Full-scale tests
    • Soil deformation
    • Soil liquefaction

    ASJC Scopus subject areas

    • Soil Science

    Cite this

    El Shamy, U., Zeghal, M., Dobry, R., Thevanayagam, S., Elgamal, A., Abdoun, T., ... Bennett, V. (2010). Micromechanical aspects of liquefaction-induced lateral spreading. International Journal of Geomechanics, 10(5), 190-201. [003005QGM]. https://doi.org/10.1061/(ASCE)GM.1943-5622.0000056

    Micromechanical aspects of liquefaction-induced lateral spreading. / El Shamy, U.; Zeghal, M.; Dobry, R.; Thevanayagam, S.; Elgamal, A.; Abdoun, Tarek; Medina, C.; Bethapudi, R.; Bennett, V.

    In: International Journal of Geomechanics, Vol. 10, No. 5, 003005QGM, 01.10.2010, p. 190-201.

    Research output: Contribution to journalArticle

    El Shamy, U, Zeghal, M, Dobry, R, Thevanayagam, S, Elgamal, A, Abdoun, T, Medina, C, Bethapudi, R & Bennett, V 2010, 'Micromechanical aspects of liquefaction-induced lateral spreading', International Journal of Geomechanics, vol. 10, no. 5, 003005QGM, pp. 190-201. https://doi.org/10.1061/(ASCE)GM.1943-5622.0000056
    El Shamy U, Zeghal M, Dobry R, Thevanayagam S, Elgamal A, Abdoun T et al. Micromechanical aspects of liquefaction-induced lateral spreading. International Journal of Geomechanics. 2010 Oct 1;10(5):190-201. 003005QGM. https://doi.org/10.1061/(ASCE)GM.1943-5622.0000056
    El Shamy, U. ; Zeghal, M. ; Dobry, R. ; Thevanayagam, S. ; Elgamal, A. ; Abdoun, Tarek ; Medina, C. ; Bethapudi, R. ; Bennett, V. / Micromechanical aspects of liquefaction-induced lateral spreading. In: International Journal of Geomechanics. 2010 ; Vol. 10, No. 5. pp. 190-201.
    @article{594ac0fa9c8e44888ee6059f244707e9,
    title = "Micromechanical aspects of liquefaction-induced lateral spreading",
    abstract = "This paper reports the results of model-based simulations of 1-g shake table tests of level and sloping saturated granular soils subject to seismic excitations. The simulations utilize a transient fully coupled continuum-fluid discrete-particle model of water-saturated soils. The fluid (water) phase is idealized at a mesoscale using an averaged form of Navier-Stokes equations. The solid particles are modeled at the microscale as an assemblage of discrete spheres using the discrete element method (DEM). The interphase momentum transfer is accounted for using an established relationship. The employed model reproduced a number of response patterns observed in the 1-g experiments. In addition, the simulation results provided valuable information on the mechanics of liquefaction initiation and subsequent occurrence of lateral spreading in sloping ground. Specifically, the simulations captured sliding block failure instances at different depth locations. The DEM simulation also quantified the impact of void redistribution during shaking on the developed water pressure and lateral spreading. Near the surface, the particles dilated and produced an increase in volume, while the particles at deeper depth locations experienced a decrease in volume during shaking.",
    keywords = "Computational fluid dynamics technique, Discrete element, Discrete elements, Full-scale tests, Soil deformation, Soil liquefaction",
    author = "{El Shamy}, U. and M. Zeghal and R. Dobry and S. Thevanayagam and A. Elgamal and Tarek Abdoun and C. Medina and R. Bethapudi and V. Bennett",
    year = "2010",
    month = "10",
    day = "1",
    doi = "10.1061/(ASCE)GM.1943-5622.0000056",
    language = "English (US)",
    volume = "10",
    pages = "190--201",
    journal = "International Journal of Geomechanics",
    issn = "1532-3641",
    publisher = "American Society of Civil Engineers (ASCE)",
    number = "5",

    }

    TY - JOUR

    T1 - Micromechanical aspects of liquefaction-induced lateral spreading

    AU - El Shamy, U.

    AU - Zeghal, M.

    AU - Dobry, R.

    AU - Thevanayagam, S.

    AU - Elgamal, A.

    AU - Abdoun, Tarek

    AU - Medina, C.

    AU - Bethapudi, R.

    AU - Bennett, V.

    PY - 2010/10/1

    Y1 - 2010/10/1

    N2 - This paper reports the results of model-based simulations of 1-g shake table tests of level and sloping saturated granular soils subject to seismic excitations. The simulations utilize a transient fully coupled continuum-fluid discrete-particle model of water-saturated soils. The fluid (water) phase is idealized at a mesoscale using an averaged form of Navier-Stokes equations. The solid particles are modeled at the microscale as an assemblage of discrete spheres using the discrete element method (DEM). The interphase momentum transfer is accounted for using an established relationship. The employed model reproduced a number of response patterns observed in the 1-g experiments. In addition, the simulation results provided valuable information on the mechanics of liquefaction initiation and subsequent occurrence of lateral spreading in sloping ground. Specifically, the simulations captured sliding block failure instances at different depth locations. The DEM simulation also quantified the impact of void redistribution during shaking on the developed water pressure and lateral spreading. Near the surface, the particles dilated and produced an increase in volume, while the particles at deeper depth locations experienced a decrease in volume during shaking.

    AB - This paper reports the results of model-based simulations of 1-g shake table tests of level and sloping saturated granular soils subject to seismic excitations. The simulations utilize a transient fully coupled continuum-fluid discrete-particle model of water-saturated soils. The fluid (water) phase is idealized at a mesoscale using an averaged form of Navier-Stokes equations. The solid particles are modeled at the microscale as an assemblage of discrete spheres using the discrete element method (DEM). The interphase momentum transfer is accounted for using an established relationship. The employed model reproduced a number of response patterns observed in the 1-g experiments. In addition, the simulation results provided valuable information on the mechanics of liquefaction initiation and subsequent occurrence of lateral spreading in sloping ground. Specifically, the simulations captured sliding block failure instances at different depth locations. The DEM simulation also quantified the impact of void redistribution during shaking on the developed water pressure and lateral spreading. Near the surface, the particles dilated and produced an increase in volume, while the particles at deeper depth locations experienced a decrease in volume during shaking.

    KW - Computational fluid dynamics technique

    KW - Discrete element

    KW - Discrete elements

    KW - Full-scale tests

    KW - Soil deformation

    KW - Soil liquefaction

    UR - http://www.scopus.com/inward/record.url?scp=77956791460&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=77956791460&partnerID=8YFLogxK

    U2 - 10.1061/(ASCE)GM.1943-5622.0000056

    DO - 10.1061/(ASCE)GM.1943-5622.0000056

    M3 - Article

    VL - 10

    SP - 190

    EP - 201

    JO - International Journal of Geomechanics

    JF - International Journal of Geomechanics

    SN - 1532-3641

    IS - 5

    M1 - 003005QGM

    ER -