International Journal of Geomechanics: Recent submissions
Now showing items 3621-3640 of 4049
-
Modeling of Rheological Deformation of Inhomogeneous Rock and Associated Time-Dependent Response of Tunnels
(American Society of Civil Engineers, 2012)An exponential creep model on the basis of material properties degradation law was applied in the paper to simulate the rheological behavior of inhomogeneous rock and time-dependent response of rock tunnels. The primary, ... -
Performance of Zero-Level Fill-In Preconditioning Techniques for Iterative Solutions with Geotechnical Applications
(American Society of Civil Engineers, 2012)Biot's symmetric indefinite linear systems of equations are commonly encountered in finite-element computations of geotechnical problems. The development of efficient solution methods for Biot's linear systems of equations ... -
Semiempirical Cyclic Densification Model for Ballast Incorporating Particle Breakage
(American Society of Civil Engineers, 2012)A number of constitutive models exist to model behavior of granular material under cyclic loading. Most of these models are useful to model soil behavior where the number of cycles is very small. Therefore, a semiempirical ... -
Modeling the Dynamic Response of Wrap-Faced Reinforced Soil Retaining Walls
(American Society of Civil Engineers, 2012)This paper describes the development of a numerical model for simulating the shaking table tests on wrap-faced reinforced soil retaining walls. Some of the physical model tests carried out on reinforced soil retaining walls ... -
Formulation of Cross-Anisotropic Failure Criterion for Granular Material
(American Society of Civil Engineers, 2012)The failure anisotropy of geomaterial is inherently related to the microstructure such as grain arrangement, bedding, and crack pattern. This paper presents a formulation of an anisotropic failure criterion in three-dimensional ... -
Prediction of Cryo-SWCC during Freezing Based on Pore-Size Distribution
(American Society of Civil Engineers, 2012)The freezing process in soils is generally recognized as a coupled problem of heat and moisture transfer. Especially in the process of transfer, it is essential to understand the status of unfrozen water. In this paper, ... -
Translational Seismic Failure Analysis of MSW Landfills Using Pseudodynamic Approach
(American Society of Civil Engineers, 2012)Most of the municipal solid waste (MSW) landfills can fail in different modes such as sliding, rotational, or translational mode under both static and seismic loading conditions. These landfills constructed in the seismic ... -
New Soil-Water Characteristic Curve and Its Performance in the Finite-Element Simulation of Unsaturated Soils
(American Society of Civil Engineers, 2012)Among the many constitutive equations, the moisture-suction relationship, also known as the soil-water characteristic curve (SWCC), is one of the important relationships needed for modeling the dynamics of unsaturated soils ... -
Discussion of “Two-Dimensional Discrete Element Theory for Rough Particles” by Mingjing Jiang, Serge Leroueil, Hehua Zhu, Hai-Sui Yu, and Jean-Marie Konrad
(American Society of Civil Engineers, 2011) -
Macro-Micro Responses of Granular Materials under Different b Values Using DEM
(American Society of Civil Engineers, 2012)Granular materials, such as sand, experience different stress paths in nature; and the behavior of granular materials depends on stress conditions. This paper presents a study of the relationship between the macro- and ... -
Analytical Model for Deflection of the Runway Pavement at Touchdown Point Caused by an Aircraft during Landing
(American Society of Civil Engineers, 2012)An estimation of the runway pavement deflection during landing for design purposes has been a challenging problem for engineers. This paper presents a simple analytical model to predict dynamic deflection of a runway ... -
Model Tests and 3D Finite Element Simulations of Uplift Resistance of Shallow Rectangular Anchor Foundations
(American Society of Civil Engineers, 2012)Anchor foundations of various embedment ratios, shapes, and sizes are frequently used in civil engineering structures to provide uplift resistance. Therefore, to achieve economic and safe design of such foundations, engineers ... -
Torsional Surface Waves in a Self-Reinforced Medium over a Heterogeneous Half Space
(American Society of Civil Engineers, 2012)This paper aims to study the dispersion of torsional surface waves in a self-reinforced layer over a half-space with linearly varying rigidity and density. Dispersion equation has been obtained in closed form. Dispersion ... -
Modeling of Hydraulic Fracturing in a Poroelastic Cohesive Formation
(American Society of Civil Engineers, 2012)This paper investigates the main parameters that affect the propagation of a fluid driven-fracture in a poroelastic medium. The fracture results from the pumping of an incompressible Newtonian viscous fluid at the fracture ... -
Assessment of 3D Slope Stability Analysis Methods Based on 3D Simplified Janbu and Hovland Methods
(American Society of Civil Engineers, 2012)An assessment of three-dimensional slope stability analysis methods in terms of safety factors using several idealized sliding masses composed of plane sliding surfaces was made. Three-dimensional safety factors were ... -
Application of the Meshfree Method for Evaluating the Bearing Capacity and Response Behavior of Foundation Piles
(American Society of Civil Engineers, 2012)Meshfree method is one of the numerical methods that typically use higher-order approximate functions and a weighted-residual approach to formulate the shape functions that are independent of the grids. In this paper, a ... -
Analytical Solution for the Consolidation around a Laterally Loaded Pile
(American Society of Civil Engineers, 2012)This paper presents a closed-form analytical solution for the consolidation of soil around a laterally loaded pile, assuming the soil skeleton deforms elastically and under plane strain conditions. The problem is idealized ... -
Retracted: Subloading Surface Plasticity Model Algorithm for 3D Subsidence Analyses above Gas Reservoirs
(American Society of Civil Engineers, 2012)The coupled hydromechanical state in soils coming from consolidation/subsidence processes and undergoing plasticity phenomena is evaluated by means of the subloading surface model. The most important feature of this theory ... -
Evaluation of Shape Effects for Rectangular Anchors in Dense Sand: Model Tests and 3D Finite-Element Analysis
(American Society of Civil Engineers, 2012)In this study, three-dimensional finite element models, incorporating an elastoplastic material model coupled with isotropic simple softening law, nonassociated flow rule, and shear-band effect, are validated for the ... -
Influence of Sidewall Friction on the Results of Small-Scale Laboratory Model Tests: Numerical Assessment
(American Society of Civil Engineers, 2012)Laboratory model tests in geotechnical engineering are routinely performed in small concrete or steel test tanks to examine the bearing capacity of footings, lateral earth pressures on retaining walls, behavior of reinforced ...