FIELD DETERMINATION OF ANISOTROPY AND THE COEFFICIENT OF LATERAL EARTH PRESSURE
Particulate materials such as soils and aggregates, whether natural or manufactured, are inherently anisotropic with respect to stiffness and strength properties. Anisotropic mechanical properties are not routinely assessed, yet differences in material properties can influence design-based calculations. The paper presents a methodology for assessing anisotropic shear properties of particulate materials. The method is based upon the measurement of seismic shear wave velocities via improved and extended crosshole testing techniques. Measurements completed at a number of test sites have demonstrated the ability of the methodology to assess the anisotropic shear modulus of particulate materials. A promising application of the measurements is in situ assessment of the coefficient of lateral earth pressure.
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Supplemental Notes:
- Full conference proceedings available on CD-ROM.
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Corporate Authors:
University of Texas, Austin
International Center for Aggregates Research, 3208 Red River
Austin, TX United States 78705-2650Texas A&M University, College Station
Faculty Exchange Box H
College Station, TX United States 77843 -
Authors:
- Griffin, L M
- Hiltunen, D R
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Conference:
- International Center for Aggregates Research 9th Annual Symposium: Aggregates - Concrete, Bases and Fines
- Location: Austin, Texas
- Date: 2001-4-22 to 2001-4-25
- Publication Date: 2001
Language
- English
Media Info
- Features: Figures; References;
- Pagination: 19p
Subject/Index Terms
- TRT Terms: Aggregates; Anisotropy (Physics); Coefficients; Crossheadings; Earth pressure; Elastic waves; Mechanical properties; Particulates; Properties of materials; Shear properties; Soils; Stiffness; Strength of materials; Testing
- Uncontrolled Terms: Shear wave velocity
- Subject Areas: Geotechnology; Highways; Materials; I36: Aggregates;
Filing Info
- Accession Number: 00983569
- Record Type: Publication
- Report/Paper Numbers: Final Draft
- Files: TRIS
- Created Date: Dec 24 2004 12:00AM