Accession Number : AD0684338

Title :   STUDY OF WAVE PROPAGATION IN CONFINED SOILS.

Descriptive Note : Final rept.,

Corporate Author : IIT RESEARCH INST CHICAGO ILL

Personal Author(s) : Hampton,D. ; Huck,P. J.

Report Date : JUN 1968

Pagination or Media Count : 159

Abstract : The report covers an experimental program dealing with the propagation of stress waves through horizontal columns of soil. The soil specimens were contained in a segmented hollow cylinder consisting of 1-in.-long aluminum sections of about 3 in. diam, with 1/8-in. foam rubber spacers on each end. Two soils were used in the study, EPK clay and McCormick Ranch sand. Embedded stress and strain gages were used to measure time histories and information was gained concerning stress-strain characteristics. Data were obtained on peak stress attenuation, velocities of wave propagation and peak stress, wave front development, and experimental error. Two test series were run. The first was for the purpose of perfecting the confining chamber and shock tube apparatus. The second was the main test series to be used for analysis. In the latter, data analysis took the form of a comparison of laboratory wave propagation results with predictions by a one-dimensional lumped parameter computer code developed at IITRI. (Author)

Descriptors :   (*SOILS, STRESSES), PROPAGATION, CLAY, SAND, PREDICTIONS, STRAIN(MECHANICS), STRAIN GAGES, SHOCK WAVES, LOADS(FORCES), DIAGRAMS, CAPTIVE TESTS, COMPUTER PROGRAMMING

Subject Categories : Soil Mechanics
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE