Location
San Diego, California
Presentation Date
27 May 2010, 11:00 am - 11:20 am
Abstract
A comparison is conducted between clean sand liquefaction charts based, respectively, on normalized point penetration resistance in CPT static cone tests (qc1N) and shear wave velocity (Vs1). Examination of the shape of these field-calibrated curves, review of the factors influencing liquefaction resistance in the laboratory, field correlations between qc1N and Vs1, and field and laboratory evidence related to some of the factors influencing cone penetration resistance and shear wave velocity in sands, are all used in the discussion. It is concluded that the difference between the shapes of the two charts at the high end may be due - at least partially - to lateral stress effects associated with overconsolidation and preshaking, which are known to increase liquefaction resistance, and specifically to the higher sensitivity of the penetration resistance to the value of the coefficient of lateral stress at rest, K0.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2010 Missouri University of Science and Technology, 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
Dobry, Ricardo, "Comparison Between Clean Sand Liquefaction Charts Based on Penetration Resistance and Shear Wave Velocity" (2010). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 2.
https://scholarsmine.mst.edu/icrageesd/05icrageesd/session11/2
Included in
Comparison Between Clean Sand Liquefaction Charts Based on Penetration Resistance and Shear Wave Velocity
San Diego, California
A comparison is conducted between clean sand liquefaction charts based, respectively, on normalized point penetration resistance in CPT static cone tests (qc1N) and shear wave velocity (Vs1). Examination of the shape of these field-calibrated curves, review of the factors influencing liquefaction resistance in the laboratory, field correlations between qc1N and Vs1, and field and laboratory evidence related to some of the factors influencing cone penetration resistance and shear wave velocity in sands, are all used in the discussion. It is concluded that the difference between the shapes of the two charts at the high end may be due - at least partially - to lateral stress effects associated with overconsolidation and preshaking, which are known to increase liquefaction resistance, and specifically to the higher sensitivity of the penetration resistance to the value of the coefficient of lateral stress at rest, K0.
