International Journal of Geomechanics: Recent submissions

Now showing items 3921-3940 of 4049

    • Lateral Loading of a Rigid Rock Socket Embedded in a Damage-Susceptible Poroelastic Solid 

      A. Shirazi; A. P. Selvadurai (American Society of Civil Engineers, 2005)
      The paper presents a computational assessment of the influence of damage on the behavior of a rigid rock socket embedded in a fluid-saturated poroelastic solid. The iterative computational scheme takes into consideration ...

    • Theory of Three-Dimensional Discontinuous Deformation Analysis and Its Application to a Slope Toppling at Amatoribashi, Japan 

      Jian-Hong Wu; Yuzo Ohnishi; Gen-Hua Shi; Satoshi Nishiyama (American Society of Civil Engineers, 2005)
      A three-dimensional (3D) rock slope toppling occurred in a discontinuous rock mass. To simulate the failure process and study the mechanism of this rock failure with contact and large displacement in 3D, a new discrete ...

    • Soft Sediments: Wave-based Characterization 

      Katherine Klein; J. Carlos Santamarina (American Society of Civil Engineers, 2005)
      Soft sediments are frequently encountered in geotechnical practice, forming natural deposits or manmade mixtures. These high water content soil–water mixtures involve soils with high specific surface and experience relatively ...

    • Effect of Anisotropy and Destructuration on the Behavior of Murro Test Embankment 

      Minna Karstunen; Harald Krenn; Simon J. Wheeler; Mirva Koskinen; Rachid Zentar (American Society of Civil Engineers, 2005)
      This paper investigates the influence of anisotropy and destructuration on the behavior of a test embankment on soft clay. The test embankment at Murro, Finland, was commissioned in 1993 by the Finnish Road Administration ...

    • Uplift Phenomenon: Model, Validation, and Design 

      M. A. Van; A. R. Koelewijn; F. B. Barends (American Society of Civil Engineers, 2005)
      Uplift induced slope failure occurs due to high water pressures in the sand layer below the soft top layers in a polder. The top layers are lifted due to water pressure invoking slope instability. The mechanism is significant ...

    • Estimation of Degree of Consolidation for Vacuum Preloading Projects 

      J. Chu; S. W. Yan (American Society of Civil Engineers, 2005)
      The degree of consolidation is usually used as one of the criteria for assessing the effectiveness of soil improvement work using the fill surcharge or vacuum preloading method. It is also often used as a design specification ...

    • Finite-Element Analysis of Inclined Piezocone Penetration Test in Clays 

      Lei Wei; Murad Y. Abu-Farsakh; Mehmet T. Tumay (American Society of Civil Engineers, 2005)
      A three-dimensional finite-element analysis was performed to analyze the effect of soil anisotropy on the inclined piezocone penetration test in normally consolidated clay. The piezocone penetration was numerically simulated ...

    • Constitutive Modeling for Geologic Materials: Significance and Directions 

      Chandra S. Desai (American Society of Civil Engineers, 2005)

    • Experimental Study of the Behavior of a Lumpy Fill of Soft Clay 

      R. G. Robinson; T. S. Tan; G. R. Dasari; C. F. Leung; A. Vijayakumar (American Society of Civil Engineers, 2005)
      Land reclamation is a major civil engineering activity in Singapore. Due to depletion of suitable local fills and the cost of imported sand, dredged and excavated clay fills, in spite of their poor engineering properties, ...

    • Genetic Algorithms for the Calibration of Constitutive Models for Soils 

      Prasad Samarajiva; Emir Jose Macari; Wije Wathugala (American Society of Civil Engineers, 2005)
      This paper presents a study that uses an innovative numerical method called the “genetic algorithm” for material parameter optimization in constitutive modeling. The paper introduces a new scheme, a fitness function, to ...

    • Reinforced Soil Using Cohesive Fill and Electrokinetic Geosynthetics 

      S. Glendinning; C. J. Jones; R. C. Pugh (American Society of Civil Engineers, 2005)
      An electrokinetic geosynthetic (EKG), is a polymeric geosynthetic material, enhanced to conduct electricity, which can be used to transport water in fine-grained soils by electrokinetic means. This paper describes the ...

    • Reliability-Based Design for External Stability of Mechanically Stabilized Earth Walls 

      Tanit Chalermyanont; Craig H. Benson (American Society of Civil Engineers, 2005)
      A two-phase approach was used to develop a reliability-based design (RBD) method for external stability of mechanically stabilized earth (MSE) walls. In the first phase, a parametric study was conducted using Monte Carlo ...

    • Correlation of Elastic Constants with Penetration Resistance in Sandy Soils 

      Bernd Weiher; Rob Davis (American Society of Civil Engineers, 2004)
      In this note, we investigate some existing correlations between soil modulii and penetration resistance using a direct approach. We make use of settlement data from case histories for both shallow and deep foundations over ...

    • Steady-State Solutions of Multilayered and Cross-Anisotropic Poroelastic Half-Space due to a Point Sink 

      G. J. Chen (American Society of Civil Engineers, 2005)
      This paper presents analytical solutions for the steady-state response of displacements and stresses in a half-space subjected to a point sink. The half-space is modeled as a multilayered poroelastic medium with both the ...

    • Analytical and Numerical Modeling of Soft Soil Stabilized by Prefabricated Vertical Drains Incorporating Vacuum Preloading 

      B. Indraratna; I. Sathananthan; C. Rujikiatkamjorn; A. S. Balasubramaniam (American Society of Civil Engineers, 2005)
      This paper describes the analytical formulation of a modified consolidation theory incorporating vacuum pressure, and numerical modeling of soft clay stabilized by prefabricated vertical drains, with a linearly distributed ...

    • Three-Dimensional Nonlinear Seismic Analysis of Single Piles Using Finite Element Model: Effects of Plasticity of Soil 

      B. K. Maheshwari; K. Z. Truman; P. L. Gould; M. H. El Naggar (American Society of Civil Engineers, 2005)
      Much of the reported research on the dynamic analysis of pile foundations assumes linear behavior of soil that may not be valid for strong excitations. In this paper, material nonlinearity of the soil caused by plasticity ...

    • Elastic Solution for Tunneling-Induced Ground Movements in Clays 

      K. H. Park (American Society of Civil Engineers, 2004)
      This paper presents the elastic solutions for the prediction of the tunneling-induced ground deformations for shallow and deep tunnels in the soft ground. The oval-shaped ground deformation pattern is incorporated as the ...

    • Loads on Braced Excavations in Soft Clay 

      Kjell Karlsrud; Lars Andresen (American Society of Civil Engineers, 2005)
      A parametric finite element study has been carried out to demonstrate the importance of clay strength and depth of clay layer on the earth pressures, strut loads, and bending moments for a strutted sheet pile wall in soft, ...

    • Multiple-Porosity Contaminant Transport by Finite-Element Method 

      Abbas H. El-Zein; John P. Carter; David W. Airey (American Society of Civil Engineers, 2005)
      An exponential finite-element model for multiple-porosity contaminant transport in soils is proposed. The model combines three compartments for dissolved contaminants: a primary compartment of diffusion–advection transport ...

    • Seepage through a Levee 

      G. C. Mishra; A. K. Singh (American Society of Civil Engineers, 2005)
      A steady-state two-dimensional unconfined flow through a homogeneous levee with a horizontal toe drain resting on an impervious base has been analyzed. Unlike in Kozeny’s method, the hydraulic resistance of the soil in a ...