International Journal of Geomechanics: Recent submissions
Now showing items 3781-3800 of 4049
-
Shear Band Analysis in the Biaxial Test
(American Society of Civil Engineers, 2008)Simulation of a biaxial test by finite-element calculations may lead to unexpected localized deformations even for an elastic-perfect plastic Mohr–Coulomb model. The effects of localization lead to difficulties in computations. ... -
Discussion of “Load Transfer in Rammed Aggregate Piers” by Muhannad T. Suleiman and David J. White
(American Society of Civil Engineers, 2008) -
Modeling of Pipe–Soil Interaction and Its Application in Numerical Simulation
(American Society of Civil Engineers, 2008)This paper presents three plasticity models that can be applied to numerically simulate pipe–soil interaction. They can be applied individually to evaluate the force–displacement response of a small plane-strain pipe section ... -
Unsaturated Soil Seepage Analysis Using a Rational Transformation Method with Under-Relaxation
(American Society of Civil Engineers, 2008)The finite-element method provides a convenient and effective means for solving problems of seepage in unsaturated soils. However, convergence difficulties exist in numerical simulations of unsaturated flow analyses because ... -
Implicit Algorithm for Modeling Unsaturated Soil Response in Three-Invariant Stress Space
(American Society of Civil Engineers, 2008)An implicit integration algorithm has been refined to predict the stress–strain–strength response of unsaturated soil under suction-controlled, multiaxial stress paths that are not achievable in a conventional cylindrical ... -
Composite Element Analysis of Gravity Dam on a Complicated Rock Foundation
(American Society of Civil Engineers, 2008)This paper presents the formulation and application of a composite element method, which is intended for numerical modeling of discontinuous rock masses. This method allows analysis of fractured rock masses using regular ... -
Simple Formulas for the Response of Shallow Foundations on Compressible Sands
(American Society of Civil Engineers, 2008)The engineering design of shallow foundations on sand is almost universally based on one of the variants of the classical bearing capacity formula. However, this formula is suitable only where the sand exhibits dilative ... -
Closure to “Load Transfer in Rammed Aggregate Piers” by Muhannad T. Suleiman and David J. White
(American Society of Civil Engineers, 2008) -
Equivalent Stress Equation for Unsaturated Soils. I: Equivalent Stress
(American Society of Civil Engineers, 2008)In 1959 Bishop stated his effective stress equation for unsaturated soils. However, the difficulties in estimating the value of its main parameter -
Optimum Design of Cantilever Retaining Walls Using Target Reliability Approach
(American Society of Civil Engineers, 2008)In this paper, an approach for reliability-based design optimization of reinforced concrete cantilever retaining wall is described. A parametric study is conducted to assess the effect of uncertainties in design parameters ... -
Equivalent Stress Equation for Unsaturated Soils. II: Solid-Porous Model
(American Society of Civil Engineers, 2008)Based on the study of the equilibrium of the particles of a soil showing a bimodal structure and subject to certain suction, it was possible to establish an analytical expression for the value of Bishop’s parameter -
Reliability-Based Analysis of Strip Footings Using Response Surface Methodology
(American Society of Civil Engineers, 2008)A reliability-based analysis of a strip foundation subjected to a central vertical load is presented. Both the ultimate and the serviceability limit states are considered. Two deterministic models based on numerical ... -
Information Feedback Analysis in Deep Excavations
(American Society of Civil Engineers, 2008)Deep excavation often causes displacement of adjacent structures. Hence, necessary construction measures must be taken in order to minimize such disturbances. Appropriate construction measures depend on effective and ... -
Effect of Footing Roughness on Lower Bound Nγ Values
(American Society of Civil Engineers, 2008)The bearing capacity factor -
Effect of Arching on Active Earth Pressure for Rigid Retaining Walls Considering Translation Mode
(American Society of Civil Engineers, 2008)It has been established by the researchers that owing to the arching effect, the active earth pressure distribution on a horizontally translating rigid wall is not triangular but nonlinear. This is attributed to the arching ... -
Estimating Drilling Parameters for Diamond Bit Drilling Operations Using Artificial Neural Networks
(American Society of Civil Engineers, 2008)Diamond bit drilling is one of the most widely used and preferable drilling techniques because of its higher rate of penetration and core recovery in the hardest rocks, the ability to drill in any direction with less ... -
2D and 3D Numerical Modeling of Combined Surcharge and Vacuum Preloading with Vertical Drains
(American Society of Civil Engineers, 2008)This paper presents a three-dimensional (3D) and two-dimensional (2D) numerical analysis of a case study of a combined vacuum and surcharge preloading project for a storage yard at Tianjin Port, China. At this site, a ... -
Numerical Analysis of a Tunnel Support Design in Conjunction with Empirical Methods
(American Society of Civil Engineers, 2008)In this paper, preliminary support design of a tunnel was analyzed by numerical and empirical approaches. The case study for this analysis is a tunnel to be constructed on the Bilecik-Istanbul roadway in Turkey. The rock ... -
Numerical Implementation of Anisotropic Continuum Model for Rock Masses
(American Society of Civil Engineers, 2008)In this technical note, rock mass has been regarded as an equivalent anisotropic continuum. Constitutive relationships for the rock masses have been derived. The approach aims to capture the overall behavior of the rock ... -
Upper Bound for Cylinder Movement Using “Elastic” Fields and Its Possible Application to Pile Deformation Analysis
(American Society of Civil Engineers, 2008)A new upper bound failure mechanism for the problem of rigid cylinder motion is presented. The velocity field associated with the mechanism is derived from a known elastic solution by similitude of the deformation field. ...