International Journal of Geomechanics: Recent submissions
Now showing items 3741-3760 of 4049
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Vertical Uplift Capacity of Equally Spaced Horizontal Strip Anchors in Sand
(American Society of Civil Engineers, 2009)The vertical uplift capacity of an infinite numbers of rigid strip plate anchors placed in a group and embedded in sand, has been determined. An upper bound theorem of limit analysis in combination with finite elements and ... -
Variation of Water Retention Characteristics due to Particle Rearrangement under Zero Gravity
(American Society of Civil Engineers, 2009)Controlled delivery of water to plant root zone remains a challenge in the exploration of plant growth under zero gravity, in which soil water retention characteristics are difficult to predict due to possible soil particle ... -
Theoretical Soil-Water Characteristic Curves Based on Adsorption, Cavitation, and a Double Porosity Model
(American Society of Civil Engineers, 2009)A theoretical expression for clay soil-water characteristic curves (SWCC) is developed for cases in which the osmotic potential is small relative to the matrix potential, for the range of water potential lower than the ... -
Microparameters Calibration for Loose and Cemented Soil When Using Particle Methods
(American Society of Civil Engineers, 2009)A numerical model for the loose and the cemented component of the Torino subsoil is presented in this paper. The model is represented by a dense packing of nonuniform sized cylindrical particles with clumps by using the ... -
Multiphase Constitutive Model for the Design of Piled-Embankments: Comparison with Three-Dimensional Numerical Simulations
(American Society of Civil Engineers, 2009)This contribution presents a so-called “multiphase” model for soft grounds improved by rigid vertical piles, aimed at capturing the global constitutive behavior of the reinforced ground. A special emphasis is put on the ... -
Discrete Element Method Simulations of the Critical State of a Granular Material
(American Society of Civil Engineers, 2009)The critical state of a granular material was investigated by performing cubical triaxial simulations using the discrete element method. These samples, assemblages of ellipsoids of two kinds, were prepared either by settling ... -
Probabilistic Analysis and Design of Circular Tunnels against Face Stability
(American Society of Civil Engineers, 2009)This paper presents a reliability-based approach for the three-dimensional analysis and design of the face stability of a shallow circular tunnel driven by a pressurized shield. Both the collapse and the blow-out failure ... -
Neural Network Modeling of Resilient Modulus Using Routine Subgrade Soil Properties
(American Society of Civil Engineers, 2010)Artificial neural network (ANN) models are developed in this study to correlate resilient modulus with routine properties of subgrade soils and state of stress for pavement design application. A database is developed ... -
Seepage-Induced Erosion in Granular Soil and Consequent Settlements
(American Society of Civil Engineers, 2009)The erosion of the fine fraction of granular soils due to seepage is a possible cause of the settlements of shallow foundations. Here the problem is tackled with reference to deep pumping wells to be installed in an urban ... -
Nonlinear Pavement Foundation Modeling for Three-Dimensional Finite-Element Analysis of Flexible Pavements
(American Society of Civil Engineers, 2009)Pavement foundation geomaterials, i.e., fine-grained subgrade soils and unbound aggregates used in untreated base/subbase layers, exhibit nonlinear behavior under repeated wheel loads. This nonlinear behavior is commonly ... -
Effect of Embedment and Spacing of Cojoined Skirted Foundation Systems on Undrained Limit States under General Loading
(American Society of Civil Engineers, 2009)A foundation system may involve more than a single footing with an arrangement such that the footings are sufficiently closely spaced that adjacent footings interact. Vertical, horizontal, and moment capacity of multifooting ... -
Numerical Simulation of the Behavior of Geocell Reinforced Sand in Foundations
(American Society of Civil Engineers, 2009)This paper presents the finite-element simulations of the behavior of strip footings resting on sand beds, with different density of soil, reinforced with geocells of different dimensions. The strength and stiffness of ... -
Seafloor-Riser Interaction Model
(American Society of Civil Engineers, 2009)Fatigue stresses associated with extreme storms, vessel movements, and vortex-induced vibrations are critical to the performance of steel catenary risers. The critical location for fatigue damage often occurs within the ... -
Coupled Analyses of Excavations in Saturated Soil
(American Society of Civil Engineers, 2009)This paper presents finite-element analyses of excavations by using a coupled deformation and flow formulation. Specific numerical procedures were implemented into the finite-element codes to simulate the excavation ... -
Three-Dimensional Numerical Modeling of a Piled Embankment
(American Society of Civil Engineers, 2009)This paper proposes a three-dimensional numerical modeling of an embankment over a soft ground mass improved by vertical stiff piles, using a finite-difference continuum approach (FLAC3D). Arching occurs in the embankment ... -
Vertical Vibration of a Flexible Foundation Resting on Saturated Layered Soil Half-Space
(American Society of Civil Engineers, 2009)This paper is concerned with the vertical vibration of a flexible foundation resting on a saturated layered soil half-space that consists of a dry soil layer and an underlying semi-infinite saturated soil. The problem is ... -
Discussion of “Analysis of Deep Moisture Barriers in Expansive Soils. I: Constitutive Model Formulation” by Eduardo Rojas, Miguel P. Romo, and Refugio Cervantes
(American Society of Civil Engineers, 2009) -
Complex Variable Solutions for Tunneling-Induced Ground Movement
(American Society of Civil Engineers, 2009)Soil loss during tunneling may induce the ground deformation. The loss volume depends on tunneling methods, soil types, workmanship, etc. The movement pattern along the tunnel section can be separated into two parts: one ... -
Discrete Simulations of Laboratory Loading Conditions
(American Society of Civil Engineers, 2009)It is well known that all three principal stresses play a role in the stress-strain-strength-volume response of solids and granular materials, yet conventional triaxial compression tests and direct shear tests are typically ...