Shear Modulus and Damping in Soils: Design Equations and Curves
Equations and graphs for the determination of shear modulus and damping of soils, for use in design problems involving repeated loading or vibration of soils, are presented. These equations...

Undrained Cyclic Shear of Saturated Sand
Quantitative data are presented and analyzed giving the effective confining pressure, shear modulus, and damping as a function of cycles of loading. Normalized empirical expressions based...

Time Effects on Dynamic Shear Modulus of Clays
A Hardin oscillator was used to apply a steady-state, torsional vibratory load to remolded specimens of kaolinite and calcium bentonite inside a triaxial chamber and under an isotropic...

Load-Settlement Prediction for Piles and Piers
A simple method is presented for the prediction of load-settlement behavior to failure of single piles and piers. The results of theoretical elastic analysis of pile settlement behavior...

Torsion of Multilayered Rectangular Section
An analytical method for determining the effective shear modulus of a multilayered rectangular member in uniform torsion is presented. The materials in the member are elastic and isotropic,...

Dynamic Moduli and Damping Ratios for a Soft Clay
Cyclic, simple shear, and free vibration tests were performed on 12-in × 12-in × 6-in block samples of a remolded 3:1 kaolinite-bentonite clay mixture of various water contents. The simple...

Thixotropic Behavior of Compacted Clays
The variation in dynamic shear modulus with time was used to study both the rate and extent of thixotropic stiffening in compacted clays. The shear modulus was measured by the resonant...

In-Situ Investigation using SH-Waves
The in-situ dynamic shear modulus of pavement materials may be deduced from measurements of the surface phase velocity of horizontally polarized shear waves (SH-waves). The velocity of...

Structures in Soil under High Loads
Basic soil-structure relations are provided for horizontal buried cylinders subjected to high loads. Also, general information is given on the status of soil-structure system optimization...

Long-Term Pressure Effects on Shear Modulus of Soils
Long-term resonant-column tests were performed on seven air-dry soils to determine their small-strain dynamic behavior under confining pressures maintained for durations up to 803 days....

Analysis of Load-Bearing Fills over Soft Subsoils
The protection afforded soft subsoils by the stress-distributing characteristics of load-bearing fills is examined. Using recently developed finite element techniques of analysis, including...

Dynamic Prestraining of Dry Sand
Dynamic prestraining is the application of vibratory shearing strains to soil that is acted upon by static confining pressure. Tests on hollow, cylindrical Ottawa sand specimens, in a...

Method for Predicting Initial Settlement
A method of analysis is developed for predicting initial settlement, i.e., settlement due to strains which occur within soil that remains at constant volume. The method employs finite...

Seismic Response of Soil Deposits
An analytical procedure for the evaluation of the seismic response of horizontal soil layers incorporating equivalent linear moduli and damping ratios varying with depth is presented....

Model Study of Laterally Loaded Piles
Tests on scaled models of the locks and dams used in the Arkansas River Navigation Project were performed to develop design criteria for pile foundations in sand. The relationships between...

Buckling of Fully and Partially Embedded Piles
Variation of axial force along the embedded length of the piles and boundary conditions have considerable influence on the buckling loads of piles. Partially embedded and some fully embedded...

Influence of Soil Conditions on Ground Motions During Earthquakes
Data are presented to show that in many cases the characteristics of ground surface motions during earthquakes, and the corresponding forms of the response spectra, vary with soil conditions...

A Study of Bulk and Shear Moduli of a Sand
The stress-strain relationship of a micaceous sand is investigated by separating the volumetric and deviatoric components. Isotropic compression tests are used to investigate the bulk...

Euler Beams on a Two Parameter Foundation Model
A computer program for the analysis and design of finite length beams on soil subjected to general loadings and end support conditions is presented. The soil model used was the Vlasov...

Circular Sandwich Plates Under Eccentric Load
The governing equations for the nonrotationally symmetrical bending of isotropic circular sandwich plates derived by the writer in a previous paper are applied to obtain the solution for...

 

 

 

 

Return to search