Location
St. Louis, Missouri
Presentation Date
05 Apr 1995, 1:30 pm - 3:30 pm
Abstract
Wave transmission tests were conducted on specimens of Eglin and Ottawa 20-30 sands at saturations varying from dry to near 100% using a Split-Hopkinson Pressure Bar. Specimens were compacted to a constant dry density in a thick-walled stainless steel container using a standard Proctor hammer. Compacted specimens were loaded in undrained, dynamic uniaxial confined compression at strain rates of approximately 13/s to 19/s. Tests were conducted on dry specimens; specimens compacted moist and tested moist; specimens compacted moist and dried before testing. For a constant input stress, transmitted stress and compressional wave propagation velocity were seen to vary with saturation. The experimental evidence suggests that the observed behavior can be attributed to variations in soil stiffness, microstructure and locked-in stresses as a result of moisture conditions present during compaction.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
3rd International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1995 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Veyera, G. E. and Ross, C. A., "Stress Wave Propagation in Unsaturated Sands" (1995). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 4.
https://scholarsmine.mst.edu/icrageesd/03icrageesd/session10/4
Included in
Stress Wave Propagation in Unsaturated Sands
St. Louis, Missouri
Wave transmission tests were conducted on specimens of Eglin and Ottawa 20-30 sands at saturations varying from dry to near 100% using a Split-Hopkinson Pressure Bar. Specimens were compacted to a constant dry density in a thick-walled stainless steel container using a standard Proctor hammer. Compacted specimens were loaded in undrained, dynamic uniaxial confined compression at strain rates of approximately 13/s to 19/s. Tests were conducted on dry specimens; specimens compacted moist and tested moist; specimens compacted moist and dried before testing. For a constant input stress, transmitted stress and compressional wave propagation velocity were seen to vary with saturation. The experimental evidence suggests that the observed behavior can be attributed to variations in soil stiffness, microstructure and locked-in stresses as a result of moisture conditions present during compaction.
