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Microscale Modeling of Soil Liquefaction under Multidirectional Shaking
Very limited number of computational studies has been presented for the analysis of the response of saturated granular soils to multidirectional shaking despite it being the realistic mode of loading that resembles an actual earthquake. Herein, we examine the capabilities of a recently developed coupled lattice Boltzmann method-discrete element method technique to model level and gently sloped soil deposits when subjected to bidirectional shaking. Results of conducted simulations show that bidirectional shaking may increase surface settlement of level deposits by about 30% compared to unilateral shaking. The depth along the deposit that experiences excess pore pressure ratio close to unity increases because of bidirectional shaking compared to unilateral shaking. In addition, bidirectional shaking increases the magnitude of lateral spreading and associated shear strains in sloping deposits.
Microscale Modeling of Soil Liquefaction under Multidirectional Shaking
Very limited number of computational studies has been presented for the analysis of the response of saturated granular soils to multidirectional shaking despite it being the realistic mode of loading that resembles an actual earthquake. Herein, we examine the capabilities of a recently developed coupled lattice Boltzmann method-discrete element method technique to model level and gently sloped soil deposits when subjected to bidirectional shaking. Results of conducted simulations show that bidirectional shaking may increase surface settlement of level deposits by about 30% compared to unilateral shaking. The depth along the deposit that experiences excess pore pressure ratio close to unity increases because of bidirectional shaking compared to unilateral shaking. In addition, bidirectional shaking increases the magnitude of lateral spreading and associated shear strains in sloping deposits.
Microscale Modeling of Soil Liquefaction under Multidirectional Shaking
El Shamy, Usama (author) / Abdelhamid, Yasser (author)
Geotechnical Frontiers 2017 ; 2017 ; Orlando, Florida
Geotechnical Frontiers 2017 ; 361-368
2017-03-30
Conference paper
Electronic Resource
English
Microscale Modeling of Soil Liquefaction under Multidirectional Shaking
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