Location
St. Louis, Missouri
Presentation Date
29 Apr 1981, 9:00 am - 12:30 pm
Abstract
An experimental and theoretical study has been carried out to examine the effects of vibration frequency and amplitude as well as magnitude of static applied load on the uplift capacity of piles driven into a sandy soil. The theoretical solution was developed using a lumped parameter model with viscous damping. The results, both theoretical and experimental, indicate that the displacement amplitude required to cause uplift failure of the pile, decreases as the vibration frequency increases. This trend was shown to be significantly dependent upon the natural frequency of the pile-soil system and to a lesser degree, upon the damping ratio. At low vibration frequencies observed and calculated vibration amplitudes required to cause uplift failure were found to be in approximate agreement. The application of a surcharge pressure to the sand surface was found experimentally to increase the uplift capacity of the pile under vibration.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
1st International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1981 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
Moore, P. J. and Piper, J. P., "Effect of Vibration on Pile Uplift Capacity" (1981). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 1.
https://scholarsmine.mst.edu/icrageesd/01icrageesd/session04/1
Included in
Effect of Vibration on Pile Uplift Capacity
St. Louis, Missouri
An experimental and theoretical study has been carried out to examine the effects of vibration frequency and amplitude as well as magnitude of static applied load on the uplift capacity of piles driven into a sandy soil. The theoretical solution was developed using a lumped parameter model with viscous damping. The results, both theoretical and experimental, indicate that the displacement amplitude required to cause uplift failure of the pile, decreases as the vibration frequency increases. This trend was shown to be significantly dependent upon the natural frequency of the pile-soil system and to a lesser degree, upon the damping ratio. At low vibration frequencies observed and calculated vibration amplitudes required to cause uplift failure were found to be in approximate agreement. The application of a surcharge pressure to the sand surface was found experimentally to increase the uplift capacity of the pile under vibration.
