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RISConstitutive Modeling of Coarse-Grained Materials Incorporating the Effect of Particle Breakage on Critical State Behavior in a Framework of Generalized Plasticity
Publisher: American Society of Civil Engineers
Abstract: Coarse-grained materials (CGMs), including gravel, ballast, and rockfill material, exhibit a complicated stress-strain-volume change behavior, which is state dependent and influenced by considerable particle breakage even ...
Analytical Solutions for Simply Supported Viscously Damped Double-Beam System under Moving Harmonic Loads
Publisher: American Society of Civil Engineers
Abstract: In this paper, the dynamic response of a simply supported viscously damped double-beam system under moving harmonic loads is investigated. The double-beam system consists of two elastic homogeneous isotropic beams, which ...
Critical-State Fractional Model and Its Numerical Scheme for Isotropic Granular Soil Considering State Dependence
Publisher: American Society of Civil Engineers
Abstract: Many elastoplastic models have been proposed to model the stress–strain behavior of granular soils. However, due to the dependence of stress-dilatancy on the material state, different model parameters are often needed to ...
Characterization of Crude Bacterial Urease for CaCO3 Precipitation and Cementation of Silty Sand
Publisher: ASCE
Abstract: Biocementation catalyzed by ureolytic bacteria or enzyme urease is a promising technique for the treatment of liquefiable soil. Silty sand is often encountered in natural conditions and is often prone to earthquake ...
Enhanced Fractional Model for Soil–Structure Interface Considering 3D Stress State and Fabric Effect
Publisher: ASCE
Abstract: Engineering structures in the field are exposed to three-dimensional (3D) stress-displacement conditions with fabric evolution occurring within the soil–structure interface. Upon 3D shearing, the fabric of the interface ...
Seismic Stability and Permanent Displacement of 3D Slopes with Tension Cutoff
Publisher: ASCE
Abstract: The magnitude of seismic displacement is an important index to evaluate the safety of slopes. The traditional Mohr–Coulomb failure criterion may overestimate the slope stability in seismic displacement calculation. Some ...
Performance Analysis of Shored Mechanically Stabilized Earth Walls with Wrapped Facing Using Numerical Simulations
Publisher: American Society of Civil Engineers
Abstract: Although mechanically stabilized earth (MSE) walls typically require a reinforcement length-to-wall-height ratio of 0.7, the use of short reinforcement may be inevitable in certain situations, such as building MSE walls ...
Closed-Form Solution for Stability of Slurry Trenches
Publisher: American Society of Civil Engineers
Abstract: This paper presents a variational limit equilibrium closed-form solution for the stability of slurry-supported trenches in cohesive soil, frictional cohesive soil, and cohesionless soil. Study results indicate that the ...
Influence of Intermediate Principal Stress and Principal Stress Direction on Drained Behavior of Natural Soft Clay
Publisher: American Society of Civil Engineers
Abstract: Drained torsional shear tests were performed on hollow cylindrical intact soft clay specimens to investigate the anisotropic deformation, strength, and noncoaxial behavior in general stress states involving variations in ...
Three-Dimensional State-Dependent Fractional Plasticity Model for Soils
Publisher: ASCE
Abstract: To capture the nonassociated state-dependent constitutive behavior of soils subjected to different initial densities and pressures, a novel approach, the fractional-order (α) plasticity, was developed, which extends the ...