HOLOGRAPHY--A NEW TOOL FOR SOIL DYNAMICS
Holographic interferometry was used to find dynamic displacement of the surface of a sand half-space model excited by a harmonically vibrating circular footing. The screening effectiveness of wave barriers composed of rows of vertical cylindrical holes was studied using this technique. The general results indicate that: (1) Holographic interferometry is a powerful tool for measurement of static as well as dynamic displacement of the surface of sand half-space model; and (2) stroboscopic, double exposure, holographic interferometry can be used to get "stopped motion" records of traveling waves. Specific results for barriers indicate that the scaled hole diameter (diameter/wave-length of Rayleigh wave) should be at least 1/6, the net scaled spacing ((c-c spacing - diameter)/wavelength) should be less than 1/4, and the solid-filled hole barriers behave fundamentally differently than fluid-filled or void holes. /ASCE/
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/3519342
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Corporate Authors:
American Society of Civil Engineers
345 East 47th Street
New York, NY United States 10017-2398 -
Authors:
- Woods, R D
- Barnett, N E
- Sagesser, R
- Publication Date: 1974-11
Media Info
- Features: Appendices; Figures; References;
- Pagination: 17 p.
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Serial:
- Journal of Geotechnical and Geoenvironmental Engineering
- Volume: 100
- Issue Number: GT11
- Publisher: American Society of Civil Engineers
- ISSN: 1090-0241
- Serial URL: http://ojps.aip.org/gto
Subject/Index Terms
- TRT Terms: Dynamics; Geophysics; Half spaces; Holography; Interferometers; Measurement; Mineral dislocations; Soil mechanics; Vibratory equipment; Void ratios
- Old TRIS Terms: Geophysical measurements; Stroboscopes; Vibrating equipment; Void
- Subject Areas: Geotechnology; Highways;
Filing Info
- Accession Number: 00080524
- Record Type: Publication
- Report/Paper Numbers: Proc. Paper 10949
- Files: TRIS
- Created Date: Feb 27 1975 12:00AM