International Journal of Geomechanics: Recent submissions
Now showing items 2561-2580 of 4049
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Probabilistic-Based Analysis of MSE Walls Using the Latin Hypercube Sampling Method
(American Society of Civil Engineers, 2018)Traditionally, factors of safety have been used to design mechanically stabilized earth (MSE) walls; however, the uncertainties associated with input parameters have not been considered. The probabilistic analysis of MSE ... -
Effect of Initial State and Intermediate Principal Stress on Noncoaxiality of Soft Clay–Involved Cyclic Principal Stress Rotation
(American Society of Civil Engineers, 2018)This paper presents an experimental study of the influences of initial major principal stress direction (ξ) and intermediate principal stress coefficient (b) on noncoaxial behavior of soft clay involved pure principal ... -
Size Effect on the Time-Dependent Closure of Drifts in Callovo-Oxfordian Claystone
(American Society of Civil Engineers, 2018)In this study, we analyzed the influence of the excavation size and the sequence of excavation on the convergence evolution in drifts excavated in Callovo-Oxfordian claystone. The drifts, which are part of the Underground ... -
Undrained Shear Strength and In Situ Horizontal Effective Stress from Piezocone Penetration Test Measurements in Clayey Soils: New Approach
(American Society of Civil Engineers, 2018)In this study, first the numerical modeling of the piezocone penetration test (CPTu) is performed. Then the obtained results are used to achieve a reliable solution for determining the undrained shear strength and in situ ... -
Analysis of the Entire Failure Process of the Rotational Slide Using the Material Point Method
(American Society of Civil Engineers, 2018)In view of the postfailure simulation, the material point method (MPM) has higher computational efficiency and better computational stability compared with the other numerical methods. This paper aims to understand the ... -
Assessing Hydraulic Hysteresis Models to Characterize Unsaturated Flow Behavior under Drying and Wetting Conditions
(American Society of Civil Engineers, 2018)A soil-water retention curve (SWRC) is one of the important constitutive laws for soil-water distribution and shear-strength assessment in unsaturated soil. A SWRC commonly shows the hysteretic behavior under drying and ... -
Using a Pressurized Shield to Increase Face Stability of Circular Tunnels in Purely Cohesive Soil
(American Society of Civil Engineers, 2018)To obtain the critical collapse pressure of a circular tunnel driven by a pressurized shield for purely cohesive soils, a two-dimensional analysis model is presented based on limit analysis and slip-line theories. When the ... -
Bearing Capacity Characteristics and Failure Modes of Low Geosynthetic-Reinforced Embankments Overlying Voids
(American Society of Civil Engineers, 2018)Reinforcement solutions can ensure that low geosynthetic-reinforced (LGR) embankments progressively subside instead of suddenly failing due to void collapse, which provides an early warning to allow surface refilling to ... -
Nondimensional Solutions for Laterally Loaded Piles in Sand Considering Nonlinear Soil–Pile Interactions
(American Society of Civil Engineers, 2018)This article presents nondimensional solutions for laterally loaded piles in sand considering nonlinear soil–pile interactions. A nonlinear elastoplastic p–y model, termed the H-model, is introduced, and its ability to ... -
Particle Breakage and the Undrained Shear Behavior of Sands
(American Society of Civil Engineers, 2018)This article presents particle breakage and the undrained shear behavior of sands, with the purpose of interpreting the undrained shear behavior of the precrushed sands by detecting the influence of particle breakage on ... -
Numerical Investigation of Large-Diameter Monopiles in Sands: Critical Review and Evaluation of Both API and Newly Proposed p-y Curves
(American Society of Civil Engineers, 2018)Despite the increase in offshore wind turbine (OWT) capacities, the preferred foundations for these marine structures are large-diameter monopiles due to their ease of installation in shallow to medium water depth. The ... -
Removal of Singularities in Hoek-Brown Criterion and Its Numerical Implementation and Applications
(American Society of Civil Engineers, 2018)The representation of the Hoek-Brown criterion is an irregular curved hexagonal pyramid in the principal stress space, which leads to the occurrence of numerical singularities on the edges of the pyramid. With the aim of ... -
Softening Behavior and Volumetric Deformation of Rocks
(American Society of Civil Engineers, 2018)In this study, a constitutive model and numerical analysis were conducted on various types of rocks under triaxial compression to determine their softening response and volumetric strain. Experimental data sets corresponding ... -
Seismic Active Earth Pressure for Inclined Rigid Retaining Walls Considering Rotation of the Principal Stresses with Pseudo-Dynamic Method
(American Society of Civil Engineers, 2018)Considering the effects of the rotation of the principal stresses, time effects, and wall–back inclination, a new solution for the seismic active failure angle is derived by the pseudodynamic method, according to the total ... -
Face-Stability Analysis of Tunnels Excavated below Groundwater Considering Coupled Flow Deformation
(American Society of Civil Engineers, 2018)In this study, using the kinematic approach of limit analysis, a new numerical model was developed to investigate the effect of the coupled flow deformation on tunnel face stability. By incorporating the innovative ... -
Required Lining Pressure for the Stability of Twin Circular Tunnels in Soils
(American Society of Civil Engineers, 2018)In this study, the stability of twin circular tunnels in purely cohesive and cohesive-frictional soils was evaluated. It is assumed that the internal compressive normal pressure (σi) required to support the tunnels, by ... -
Complex Variable Solutions for Soil and Liner Deformation due to Tunneling in Clays
(American Society of Civil Engineers, 2018)Current research to predict the soil deformation due to tunneling pays little attention to the impact of soil–liner interaction. Moreover, the conventional solution for the stress function method has an inherent physical ... -
Coupled Consolidation of Layered Unsaturated Soil under General Time-Dependent Loading
(American Society of Civil Engineers, 2018)It is crucial to estimate the behavior of layered unsaturated soils with time-dependent loading for several reasons, including (1) construction of a building is a time-consuming process and loading on the soil can be ... -
Seismic Bearing Capacity of Strip Foundation Embedded in c-ϕ Soil Slope
(American Society of Civil Engineers, 2018)In this paper, seismic bearing capacity factors for shallow strip foundations embedded in homogeneous c-ϕ soil slopes are presented. A numerical study is performed using finite-element limit analysis (FELA) with lower bound ... -
CFD Modeling of Anaerobic–Aerobic Hybrid Bioreactor Landfills
(American Society of Civil Engineers, 2018)Anaerobic–aerobic hybrid bioreactor landfills, operated in a specific way that combines the benefits afforded by both anaerobic and aerobic processes, can significantly enhance the degradation of municipal solid waste (MSW) ...