International Journal of Geomechanics: Recent submissions
Now showing items 3821-3840 of 4049
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Prediction/Verification of Particle Motion in One Dimension with the Discrete-Element Method
(American Society of Civil Engineers, 2007)Although the availability of discrete-element method (DEM) codes has improved, the need still exists to solve simple verification problems to obtain an understanding of these codes. Different DEM codes may have subtle ... -
Computational Techniques and Shear Band Development for Cylindrical and Spherical Penetrometers in Strain-Softening Clay
(American Society of Civil Engineers, 2007)This paper addresses numerical simulation of deep penetration of full-flow penetrometers in strain-softening, rate-dependent, cohesive soil, and the observed phenomenon of periodic shear bands. The analysis was conducted ... -
Poroelastic Model for Production- and Injection-Induced Stresses in Reservoirs with Elastic Properties Different from the Surrounding Rock
(American Society of Civil Engineers, 2007)Closed-form and semianalytical solutions for induced poroelastic stresses and strains are extremely useful for the design of subsurface fluid storage in caverns because of their relative ease of implementation and their ... -
Nonlinear Failure Criterion and Passive Thrust on Retaining Walls
(American Society of Civil Engineers, 2007)The effect of nonlinearity of the failure criterion on the passive thrust on smooth and rough vertical retaining walls is studied theoretically. Limit analysis upper bound estimates based on block-type failure mechanisms ... -
Time-Dependent Response of Tunnels Considering Creep Effect
(American Society of Civil Engineers, 2007)A viscoelastic analysis using the hyperbolic and power creep laws is developed for prediction of time-dependent closure of circular tunnels. Effect of support types and installation location in accordance with the convergence ... -
Practical Equivalent Continuum Model for Simulation of Jointed Rock Mass Using FLAC3D
(American Society of Civil Engineers, 2007)A simple practical equivalent continuum numerical model for simulating the behavior of jointed rock mass has been extended to three-dimensional using FLAC3D. This model estimates the properties of jointed rock mass from ... -
Immiscible Displacement Model for Anisotropic and Correlated Porous Media
(American Society of Civil Engineers, 2007)Immiscible flow governs the macroscopic behavior of aqueous and non-aqueous phase liquids inside the porous media. Ganglia generation and movement of the advancing front during fluid displacement can only be described by ... -
Numerical Study of Impact of Soil Anisotropy on Seismic Performance of Retaining Structure
(American Society of Civil Engineers, 2007)Recent laboratory investigations indicate that the stress–strain–strength responses of granular soils are appreciably affected by the fabric orientation of the soil relative to the frame of principal stresses. Especially, ... -
Back-Analysis Approach for the Design of Drainage Systems
(American Society of Civil Engineers, 2007)The geotechnical design of drainage or dewatering systems requires a free surface seepage analysis to evaluate the water flux that corresponds to the sought lowering of the water table. It is observed in practice that ... -
Nonhomogeneous Spectral Element for Wave Motion in Multilayer Systems
(American Society of Civil Engineers, 2007)This contribution deals with the use of the computationally efficient spectral element technique as a means of analyzing the dynamic behavior of axisymmetric multilayer systems consisting of homogenous and nonhomogeneous ... -
Improving the Uniqueness of Surface Wave Inversion Using Multiple-Mode Dispersion Data
(American Society of Civil Engineers, 2007)The use of multiple-mode dispersion data in surface wave inversion to derive shear-wave velocity -
Numerical Evaluation of the Surface Displacements due to Soil Grouting and to Tunnel Excavation
(American Society of Civil Engineers, 2007)The low-pressure grouting with cement mixtures is one of the techniques adopted for improving the mechanical characteristics of granular soils prior to the excavation of underground openings. When applied to shallow subway ... -
Undrained Limit States of Shallow Foundations Acting in Consort
(American Society of Civil Engineers, 2007)There is no established procedure for the calculation of bearing capacity of a shallow foundation system comprising cojoined footings. Ad hoc approaches are relied on and may simply involve summing the ultimate limit states ... -
Structural Modifications of a Hard Deep Clayey Rock due to Hygro-Mechanical Solicitations
(American Society of Civil Engineers, 2007)Wetting/drying tests including cycling effects were performed on an argillaceous deep rock coming from a Callovo–Oxfordian deposit in eastern France. Bulk volume and water content were measured in order to estimate the ... -
Application of Frictional Contact in Geotechnical Engineering
(American Society of Civil Engineers, 2007)Soil-structure interaction is traditionally simplified to prescribed boundary conditions or modeled by joint elements. Both of these approaches are limited to small and continuous relative displacements at the interface. ... -
Effective Stress from Force Balance on Submerged Granular Particles
(American Society of Civil Engineers, 2007)A new equation for effective stress is derived from a physically based approach of force balance on submerged granular particles. The Euler cut principle and the Euler’s first law of mechanics are used to analyze the ... -
Buried Pipelines Subject to Subgouge Deformations
(American Society of Civil Engineers, 2007)Engineers often model pipe/soil interaction events based on the concept of subgrade reactions originally proposed by Winkler. Engineering models often utilize beam and nonlinear/plastic spring elements to represent pipelines ... -
Generalized Model for Geosynthetic-Reinforced Granular Fill-Soft Soil with Stone Columns
(American Society of Civil Engineers, 2007)This paper pertains to the development of a mechanical model to predict the behavior of a geosynthetic-reinforced granular fill over soft soil improved with stone columns. The saturated soft soil has been idealized by ... -
New Fast Convolution Algorithm in Boundary-Element Methods for Two- and Three-Dimensional Linear Soil Consolidation Analysis
(American Society of Civil Engineers, 2007)Over the last -
Computation of Cavity Expansion Pressure and Penetration Resistance in Sands
(American Society of Civil Engineers, 2007)A cavity expansion-based theory for calculation of cone penetration resistance