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Discrete-Element Method Simulations of the Seismic Response of Flexible Retaining Walls
Publisher: ASCE
Abstract: In this study, an analysis of soil–retaining wall dynamic interaction is conducted using three-dimensional discrete-element method (DEM) simulations. Soil grains are treated as rigid spherical particles that are allowed ...
Pore-Scale Modeling of Fine-Particle Migration in Granular Filters
Publisher: American Society of Civil Engineers
Abstract: Fine-particle migration and associated internal erosion are major concerns for dam safety. Granular filters are used to prevent fine-particle migration, and several empirical models have been introduced for the design of ...
Some Aspects of the Impact of Multidirectional Shaking on Liquefaction of Level and Sloping Granular Deposits
Publisher: American Society of Civil Engineers
Abstract: A very limited number of computational studies have 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 ...
Multiscale Modeling of Flood-Induced Piping in River Levees
Publisher: American Society of Civil Engineers
Abstract: A three-dimensional transient fully coupled fluid-particle model is utilized to simulate flood-induced piping under river levees and taking into account the effects of soil-fluid-structure interactions. The porous soil ...
Coupled Continuum-Discrete Model for Saturated Granular Soils
Publisher: American Society of Civil Engineers
Abstract: A coupled hydromechanical model was used to analyze the mesoscale pore fluid flow and microscale solid phase deformation of saturated granular soils. The fluid motion was idealized using averaged Navier–Stokes equations, ...
Some Aspects of the Impact of Multidirectional Shaking on Liquefaction of Level and Sloping Granular Deposits
Publisher: American Society of Civil Engineers
Abstract: A very limited number of computational studies have 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 ...
Discrete-Element Method Study of the Seismic Response of Gravity Retaining Walls
Publisher: ASCE
Abstract: A three-dimensional microscale framework utilizing the discrete-element method is utilized herein to analyze the seismic response of a soil-retaining wall system in the time domain. The granular soil deposit is idealized ...
Seismic Response Analysis of Submerged Slopes Using Coupled SPH–DEM Scheme
Publisher: ASCE
Abstract: In this study, the seismic response of submerged slopes is evaluated using a coupled smoothed particle hydrodynamics (SPH)–discrete-element method (DEM) framework. In this technique, DEM particles represent the soil grains ...
Assessment of the Effect of Design Parameters of Pressurized Sand Dampers from Component Testing
Publisher: ASCE
Abstract: This study presents results from cyclic testing on various configurations of a recently developed pressurized sand damper in which a steel sphere is moving within a cylindrical tube filled with sand that is under pressure. ...
Numerical Simulations of Particle Behavior and Crushing within a Pressurized Sand Damper Subjected to Cyclic Loading
Publisher: ASCE
Abstract: This paper presents a discrete element method (DEM) numerical model to elucidate mechanical behavior, particle crushing, and anisotropy evolution within a pressurized sand damper (PSD) subjected to cyclic loading. Computational ...