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Three-Dimensional Modeling of Strain-Softening Soil Response for Seismic-Loading Applications
Publisher: ASCE
Abstract: A three-dimensional (3D) incremental plasticity constitutive model is developed for simulating the strain softening behavior of soil materials. The constitutive model extends an existing multiyield surface (MYS) plasticity ...
Large-Scale Passive Earth Pressure Load-Displacement Tests and Numerical Simulation
Publisher: American Society of Civil Engineers
Abstract: Passive earth pressure is recorded in two different tests, using a 6.7-m long, 2.9-m wide soil container. In these tests, sand with 7% silt content is densely compacted behind a moveable test wall to a supported height of ...
Influence of Permeability on Liquefaction-Induced Shear Deformation
Publisher: American Society of Civil Engineers
Abstract: Permeability of a liquefiable soil profile may affect the rate of pore-pressure buildup and subsequent dissipation during and after earthquake excitation. Consequently, effective soil confinement and available resistance ...
Mitigation of Liquefaction-Induced Lateral Deformation in a Sloping Stratum: Three-dimensional Numerical Simulation
Publisher: American Society of Civil Engineers
Abstract: Finite-element (FE) simulations are increasingly providing a versatile environment for conducting lateral ground deformation studies. In this environment, mitigation strategies may be assessed in order to achieve economical ...
On-Line Educational Shake Table Experiments
Publisher: American Society of Civil Engineers
Abstract: Internet technologies are employed to allow real-time video monitoring, control, and execution of bench-top shake table experiments. Structural models of relevance to education in dynamics and earthquake engineering can ...
Computational Model for Cyclic Mobility and Associated Shear Deformation
Publisher: American Society of Civil Engineers
Abstract: In saturated clean medium-to-dense cohesionless soils, liquefaction-induced shear deformation is observed to accumulate in a cycle-by-cycle pattern (cyclic mobility). Much of the shear strain accumulation occurs rapidly ...
Three-Dimensional Seismic Response of a Large Embedded Structure and Induced Earth Pressure
Publisher: ASCE
Abstract: For large embedded structures, soil-structure interaction (SSI) plays a major role in dictating the overall seismic response. In light of recent strong seismic excitation affecting such structures, three-dimensional (3D) ...
Using Stone Columns to Mitigate Lateral Deformation in Uniform and Stratified Liquefiable Soil Strata
Publisher: American Society of Civil Engineers
Abstract: On the basis of a systematic parametric study, three-dimensional (3D) finite-element (FE) simulations were conducted to evaluate mitigation by the stone column (SC) approach. Mildly sloping saturated cohesionless strata ...
Large-Scale Shake Table Tests on a Shallow Foundation in Liquefiable Soils
Publisher: ASCE
Abstract: The significant damage observed during recent earthquakes resulting from liquefaction of shallow saturated soil deposits beneath structures has illustrated the need for further research in the area of liquefaction-induced ...
Dense Granular Columns in Liquefiable Ground. II: Effects on Deformations
Publisher: American Society of Civil Engineers
Abstract: Dense granular columns can be used to mitigate liquefaction hazards through a combination of densification, increases in lateral stress, reinforcement, and drainage effects. Three-dimensional (3D) nonlinear dynamic ...
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