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RISExperimental Study on the Effects of Initial Conditions on Liquefaction of Saturated and Unsaturated Sand
Publisher: American Society of Civil Engineers
Abstract: Soil liquefaction is one of the most common geohazards that is often the root cause of damage and disruption to the civil infrastructure systems. It has been tacitly considered to only occur in loose saturated sand or ...
Effects of Curing Conditions on Unconfined Compressive Strength of Cement- and Cement-Fiber-Improved Soft Soils
Publisher: American Society of Civil Engineers
Abstract: Cement-soil mixing is an effective ground improvement technique. The introduction of cement to soils can effectively increase their shear strength, but at the same time the mixture becomes brittle. To increase the ductility ...
Coupled Hydro-Mechanical Elastoplastic Constitutive Model for Unsaturated Sands and Silts. I: Formulation
Publisher: American Society of Civil Engineers
Abstract: Unsaturated soils are three-phase porous media consisting of a solid skeleton, pore water, and pore air. The behavior of unsaturated soils is strongly influenced by the matric suction (pore air pressure minus the pore water ...
Coupled Hydro-Mechanical Elastoplastic Constitutive Model for Unsaturated Sands and Silts. II: Integration, Calibration, and Validation
Publisher: American Society of Civil Engineers
Abstract: Following the comprehensive model formulation given in Part I, a fully implicit integration procedure for the rate equations using a closest point projection method is presented in this paper. The stress-update algorithm ...
Liquefaction of Unsaturated Sands
Publisher: American Society of Civil Engineers
Abstract: Recent laboratory tests and field observations have revealed that unsaturated sands are susceptible to liquefaction. Systematic investigation of liquefaction potential of unsaturated sands is, however, lacking. In this ...
Using Zernike Moments and SVM for Traffic Sign Recognition
Publisher: American Society of Civil Engineers
Liquefaction of Unsaturated Sands
Publisher: American Society of Civil Engineers
Abstract: Recent laboratory tests and field observations have revealed that unsaturated sands are susceptible to liquefaction. Systematic investigation of liquefaction potential of unsaturated sands is, however, lacking. In this ...
Test and Simulation of Horizontal Tail Leading Edge Impacted by Bird
Publisher: ASCE
Abstract: In this paper, the finite-element (FE) method combined with smoothed particle hydrodynamic (SPH) method is used to simulate the bird strike process, and a new type of tail leading edge structure is designed. This kind of ...
Case Study on Slope Stability for Composite Subgrade with River Sand and Efflorescent Mudstone Rock
Publisher: ASCE
Abstract: To solve problems concerning insufficient subgrade filler in highway construction, the feasibility of river sand and efflorescent mudstone rock (EMR) to fill subgrade with steep slope were evaluated in this study. First, ...
Discrete-Element Modeling of Cemented Granular Material Using Mixed-Mode Cohesive Zone Model
Publisher: ASCE
Abstract: This paper presents an energy-controlled fracture model to simulate mechanical behavior of cemented granular material (CGM). A modified mixed-mode cohesive zone model is developed to describe the damage behavior of the ...