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A platform for research: civil engineering, architecture and urbanism
DEM Simulations of the Seismic Response of Granular Slopes
In this study, a three-dimensional microscale framework utilizing the discrete element method (DEM) is used to examine the seismic response of dry granular slopes under different conditions of ground motions. The presented model inherently accounts for soil nonlinearity and damping in response to shear deformations. The essential characteristics of wave propagation including motion amplification and resonance were observed from the computational results. The impact of amplitude and frequency of input motion on the response of the slope was examined. Shaking-induced softening of the soil composing the slope may shift its natural frequency to values very close to the frequency of the dynamic motion, leading to a near-resonance condition in which the slope experiences severe deformation.
DEM Simulations of the Seismic Response of Granular Slopes
In this study, a three-dimensional microscale framework utilizing the discrete element method (DEM) is used to examine the seismic response of dry granular slopes under different conditions of ground motions. The presented model inherently accounts for soil nonlinearity and damping in response to shear deformations. The essential characteristics of wave propagation including motion amplification and resonance were observed from the computational results. The impact of amplitude and frequency of input motion on the response of the slope was examined. Shaking-induced softening of the soil composing the slope may shift its natural frequency to values very close to the frequency of the dynamic motion, leading to a near-resonance condition in which the slope experiences severe deformation.
DEM Simulations of the Seismic Response of Granular Slopes
El Shamy, Usama (author) / Hassan, Shehab (author)
Geo-Congress 2020 ; 2020 ; Minneapolis, Minnesota
Geo-Congress 2020 ; 324-333
2020-02-21
Conference paper
Electronic Resource
English
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