International Journal of Geomechanics: Recent submissions
Now showing items 3401-3420 of 4049
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Effect of the Flow Rule on the Bearing Capacity of Strip Foundations on Sand by the Upper-Bound Limit Analysis and Slip Lines
(American Society of Civil Engineers, 2014)The influence of the flow rule on the bearing capacity of strip foundations placed on sand was investigated using a new kinematic approach of upper-bound limit analysis. The method of stress characteristics was first used ... -
Fully Coupled Consolidation Analysis of Shear Strength Mobilization and Dragload of a Pile Subject to Negative Skin Friction
(American Society of Civil Engineers, 2015)Mobilization of negative skin friction (NSF) along a pile shaft increases the axial load (dragload) and pile head settlement (downdrag) of the pile, which may exceed the structural capacity of the pile and violate its ... -
Special Issue on Advances in Modeling Rock Engineering Problems
(American Society of Civil Engineers, 2012) -
Simplified Shockwave Analysis of the Standard Penetration Test
(American Society of Civil Engineers, 2014)The one-dimensional wave equation is used to develop a simplified analysis of the standard penetration test (SPT), including the phenomenon of hammer bounce. The analysis identifies the main dimensionless variables involved. ... -
Estimation of Fracture Stiffness, In Situ Stresses, and Elastic Parameters of Naturally Fractured Geothermal Reservoirs
(American Society of Civil Engineers, 2015)Knowledge of fracture stiffness, in situ stresses, and elastic parameters is essential to the development of efficient well patterns and enhanced geothermal systems. In this paper, an artificial neural network (ANN)–genetic ... -
First-Order Reliability Method for Probabilistic Evaluation of Liquefaction Potential of Soil Using Genetic Programming
(American Society of Civil Engineers, 2015)In this paper, liquefaction-triggering potential of soil is evaluated in terms of probability of liquefaction ( -
Estimating the Elastic Settlement of Piled Foundations on Rock
(American Society of Civil Engineers, 2015)This research introduces a simple method for preliminary evaluation of the elastic settlement of piled foundations resting on rock. Despite a significant number of publications in this area, the present effort is distinguished ... -
Testing and Modeling the Behavior of Riverbed and Blasted Quarried Rockfill Materials
(American Society of Civil Engineers, 2014)Modeled rockfill materials were obtained from nine sites (two riverbed and seven quarried) from different projects in India and Nepal, and drained triaxial tests were conducted with specimens that were 381 mm in diameter ... -
Combined FEM/DEM Modeling of Triaxial Compression Tests for Rockfills with Polyhedral Particles
(American Society of Civil Engineers, 2014)Using a microscopic modeling approach, a simplification of the discrete element’s shape was done by using irregular convex polyhedrons to reproduce the geometry-dependent behavior of rockfills. Numerical modeling of the ... -
Guidelines for Calibration and Use of the Severn-Trent Sand Model in Modeling Cantilevered Wall-Supported Excavations
(American Society of Civil Engineers, 2014)The Severn-Trent sand model is an advanced elastoplastic constitutive model that accurately reproduces the nonlinear mechanical response of coarse-grained soils at small to relatively high strain levels under monotonic ... -
Assessment and Optimization of Soil Mixing and Umbrella Vault Applied to a Cross-Passage Excavation in Soft Soils
(American Society of Civil Engineers, 2014)Focusing on three-dimensional finite-element analysis (FEA) for the assessment and optimization of reinforcement treatment using deep soil-mixing and umbrella vault methods to stabilize a cross-passage excavation in soft ... -
Equivalent Stress Approach in Creation of Elastoplastic Constitutive Models for Unsaturated Soils
(American Society of Civil Engineers, 2015)This paper introduces an equivalent stress for elastoplastic modeling of unsaturated soils. This equivalent stress unifies various models for unsaturated soils with regard to the stress variables used and allows for a ... -
Anisotropic Hardening Rule for Presheared Clay under a Constant Mean-Stress Condition
(American Society of Civil Engineers, 2014)This paper suggests that the isotropic hardening rule with a modified hardening parameter can be used to simulate anisotropic hardening behavior from both theoretical and experimental viewpoints. It is believed that the ... -
Vertical Stress Determination within Backfilled Mine Stopes
(American Society of Civil Engineers, 2014)Determining the vertical stresses within underground mine stopes is necessary for designing the barricades that block the drives during filling. This paper discusses two different procedures that can be used for determining ... -
Thermomechanical Effects Induced by Energy Piles Operation in a Small Piled Raft
(American Society of Civil Engineers, 2015)In this work, a series of fully coupled three-dimensional thermomechanical finite-element analyses has been carried out to investigate the mechanical and thermal interaction effects induced in a small piled raft equipped ... -
Load–Settlement Modeling of Axially Loaded Drilled Shafts Using CPT-Based Recurrent Neural Networks
(American Society of Civil Engineers, 2014)The design of pile foundations requires good estimation of the pile load-carrying capacity and settlement. Design for bearing capacity and design for settlement have been traditionally carried out separately. However, soil ... -
Novel Approach to Resilient Modulus Using Routine Subgrade Soil Properties
(American Society of Civil Engineers, 2014)Gene expression programming (GEP) models, a robust variant of genetic programming, are developed in this study to correlate resilient modulus with routine properties of subgrade soils and state of stress for pavement design ... -
Formation of a Polymer Thin Wall Using the Level Set Method
(American Society of Civil Engineers, 2014)Considering foam’s expansive characteristics and using programming language, the level set method was used to simulate the polymer injection process that forms a thin wall; the influencing factors of the wall formation ... -
Uniqueness of Discrete Element Simulations in Monotonic Biaxial Shear Tests
(American Society of Civil Engineers, 2014)The discrete-element method (DEM) is an important tool for understanding the underlying microscale processes that influence macroscale behavior. For quasi-static simulations, numerically imaginary input parameters such as ... -
Simplified Approximation of Wave-Induced Liquefaction in a Shallow Porous Seabed
(American Society of Civil Engineers, 2014)In this paper, a simplified assessment method for the wave-induced liquefied depth in a shallow seabed is proposed. By introducing a weighting factor, both the oscillatory and residual pore pressures were considered in the ...