An Improvement of Winkler Foundation

New Models for Rock Joints and Interfaces
Two new developments and refinements in the modeling of rock structures are presented: a new model for axisymmetric interfaces, such as found in footing designs, and a new model which...

Dilation Angle and Liquefaction Potential
It is proposed herein that the dilation angle or expansion rate of the sand during shear is such a measurement. It can readily be obtained in the laboratory from drained triaxial or simple...

Shear Dilatancy in Rock and Precursory Changes in Seismic Velocities

Shearing Flows of Granular Materials
We study the shearing flow behavior of granular materials, using a theory based on one proposed by Goodman and Cowin in 1971. Solutions to the equations of motion are presented for the...

Debris Flow on Prismatic Open Channel
Reviews on the yield strength and viscosity of the interstitial clay slurry in debris flow prove that ordinary debris flow may be modeled as a dilatant fluid in which the intergranular...

Plastic-Fracturing Theory for Concrete
Incremental plasticity and fracturing (microcracking) material theory are combined to obtain a nonlinear triaxial constitutive relation that is incrementally linear. The theory combines...

Pore Pressures Near Moving Underwater Slope
Pore pressures near a moving boundary of a saturated soil mass are calculated and compared with tests. For a more realistic approximation of the stress-strain behavior of soil, a dilatancy...

Finite Element for Buckling of Curved Beams and Shells with Shear
Inclusion of shear deformations allows the bending theory to be extended to relatively thick beams and shells and, at the same time, simplifies the finite element formulation for both...

Analysis of Moderately Thick Shells of Revolution
Using plausible transverse distributions of stress and a functional distinction between the differential transverse shears, a new method is presented for analysis of moderately thick arbitrary...

Hydrodynamical Stability of Salt Wedge
The hydrodynamical stability of a salt wedge is examined in terms of a simple example consisting of two layers of fluids in uniform shear. The upper fluid is lighter than the lower fluid...

Characteristics of Turbulent Boundary Shear Stress
The results of limited measurements of the instantaneous boundary shear stress in smooth boundary, free surface flows are presented. A commercially available, flush surface, hot-film sensor...

Pierced Shear Walls of Stepwise Variable Thickness
The continuous connection technique is now established as a quick and accurate method for the analysis of uniform pierced shear walls, which are commonly used as the primary structural...

Short Wave Models with Fixed Bed Boundary Layer
The required scale relationships for wave models with fixed bed are developed using dimensional analysis, and reviewed in the light of recent research. Special emphasis is placed on modeling...

Erratum for " Duplication of Dilatancy in Analysis of Jointed Rocks by Richard E. Goodman and Jacques Dubois"

Duplication of Dilatancy in Analysis of Jointed Rocks
The examples in this paper demonstrate that dilatancy parameters affect the results of stress and limit equilibrium analyses of jointed rock masses. A sophisticated analogue intended for...

Closure to "Stress Analysis of Contractive or Dilative Soil by Ian M. Smith and Stephen Kay"

Stress Analysis of Contractive or Dilative Soil
Nonlinear plastic stress-strain characteristics of drained soil, as described by Rowe's stress-dilatancy and by the Cambridge soil models, have been utilized in the solution...

Effect of Particle Characteristic on Soil Strength
The effects of varying particle characteristics on the strength behavior of cohesionless soils are experimentally evaluated. Soil strength is measured on the basis of the angle of shearing...

Comparison of Stress-Dilatancy Theories
The stress-dilatancy theories of Rowe (1962) and of Newland and Allely (1957) are considered. A more precise derivation of Newland and Allely's volume change equation is given...

 

 

 

 

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