This report summarizes current understanding of wave propagation in a cohesionless dry granular material in response to loadings suddenly applied and held at constant magnitude. Experimental studies of propagating waves were conducted in which measurements were made of stress and displacement, as a function of time and position along a column of granular material, so that the stress-strain relationship, and wave and particle velocities could be determined. The latter quantities, ...
The development of equipment and instrumentation and the establishment of confidence levels in equipment and instrumentation for conducting stress-wave propagation studies are discussed. Then of a free-field soil stress gauge suitable for the stress-wave propagation studies and the evaluation tests performed to establish a confidence level for the gauge are reported. A description is also included of the sample containment system in which the confining pressure is generated by the ...
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