Dynamic Response of San Francisco Bay Mud

Damping in Saturated Soil

Influence of Borehole Imperfections on Pressuremeter
A pressuremeter is a device that applies a radical pressure to the walls of a borehole. Its use in determining the in-situ shear modulus has recently become the object of considerable...

Determining Moduli of Materials from Deflections
In the reported investigation flexible pavement evaluation charts were developed as follows: (a)A subgrade evaluation chart which utilizes the maximum deflection and the spreadability...

Modulus of Soil Reaction Values for Buried Flexible Pipe
A table of modulus of soil reaction (E') values for use in the Iowa Formula has been empirically developed by the Bureau of Reclamation. Use of the methods and values suggested...

Estimating Foundation Settlements in Residual Soils
Settlement of shallow foundations supported on residual soils derived from igneous and metamorphic rock may be estimated by using pressuremeter modulus, Epm...

Densification and Hysteresis of Sand under Cyclic Shear
The accumulation of inelastic strain due to the irreversible rearrangement of grain configurations associated with deviatoric strains is characterized by a nondecreasing material variable,...

Numerical Model for Liquefaction
A numerical model for sand deposits subjected to earthquakes is developed. The soil is idealized as a two-phase medium composed of water and a structural skeleton. The water is viscous...

An Effective Stress Model for Liquefaction
The important factors affecting the dynamic response of saturated sand layers to earthquake motions are: (1)The initial shear modulus in situ; (2)the variation of shear modulus with shear...

Coefficients of Deformation of an Anisotropic Body
The five characteristic elastic constants of an axisymmetric anisotropic solid with a plane of isotropy can usually not all be established by laboratory methods. It is shown by a transformation...

Effective Shear Modulus of Flow Theories

Consolidation with Triangular Pressure Generation
In a previous technical note the writer has presented the analytical solution for the distribution of pore pressure in time and space for the case of an infinite, uniform, horizontal layer...

Undrained Modulus from Vane Shear Test
The vane shear test was developed for measuring the in-situ undrained strength of soft sensitive cohesive soils. Disturbance during insertion, progressive failure during shear, and errors...

Time-Dependent Increase in Shear Modulus of Clay
Two time domains for modulus increase have been identified, primary and secondary. Primary is the same as for primary consolidation and secondary is the open interval after primary in...

Site Investigation with Static Cone Penetrometer
A geotechnical investigation of a 100-acre (404,700 m²) site adjacent to the Savannah River in Augusta, Ga., is described. Extensive and economical usee was made of the static cone penetrometer...

Seismic Response and Liquefaction of Sands
An effective stress analysis has been developed for determining the dynamic response of horizontal saturated sand deposits to earthquake motions consisting of vertically propagating shear...

Effects of Straining on Shear Modulus of Clays
High strain amplitude resonant column tests were conducted on hollow cylindrical samples of five natural cohesive soils and one artificially prepared bentonite silica flour mixture to...

Dynamic Shear Moduli for Dry Sands
Using the Torsional Simple Shear Device, the writers investigated the relationship between the equivalent dynamic shear moduli, Geg...

Stress-Strain Characteristics of Sand
During the past decade, increasing interest has been shown in the development of a satisfactory formulation of a stress-strain relationship for engineering soils that incorporates a concise...

Lateral Load-Deflection Prediction for Pile Groups
A simple method of predicting the load-deflection behavior of a laterally loaded pile group is developed by combining a non linear load-deflection analysis for a single pile with an elastic...

 

 

 

 

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