Location

Arlington, Virginia

Session Start Date

8-11-2008

Session End Date

8-16-2008

Abstract

This paper presents the findings of numerical studies based on the finite difference method for assessment of single pile behavior under simple dynamic lateral loads. At first, the results of an experimental dynamic lateral load test on a pipe pile driven in to sandy soil are compared with the results of this numerical modeling and some parameters are back calculated. Then piles with different length to diameter ratio, subjected to simple harmonic vibrations (sinusoidal vibrations) with different magnitudes of load and with a range of frequencies, are modeled. The load transferred to the pile and pile head displacement is calculated. Finally, the effects of load frequency, soil- pile damping ratio and length to diameter ratio of pile on the behavior of pile foundation is determined. The results show that the magnitude of load and length to diameter ratio of pile have significant effect on pile response under harmonic lateral loads; displacement of the pile head increases, with increase in load magnitude and decrease in length to diameter ratio of pile. For the range of frequency studied in this paper (1 to 15 Hz), observed that this parameter doesn’t affect the pile head response.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conference on Case Histories in Geotechnical Engineering

Meeting Name

Sixth Conference

Publisher

Missouri University of Science and Technology

Publication Date

8-11-2008

Document Version

Final Version

Rights

© 2008 Missouri University of Science and Technology, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Aug 11th, 12:00 AM Aug 16th, 12:00 AM

Parametric Study of the Response of Single Pile under Lateral Loading at the Pile Head

Arlington, Virginia

This paper presents the findings of numerical studies based on the finite difference method for assessment of single pile behavior under simple dynamic lateral loads. At first, the results of an experimental dynamic lateral load test on a pipe pile driven in to sandy soil are compared with the results of this numerical modeling and some parameters are back calculated. Then piles with different length to diameter ratio, subjected to simple harmonic vibrations (sinusoidal vibrations) with different magnitudes of load and with a range of frequencies, are modeled. The load transferred to the pile and pile head displacement is calculated. Finally, the effects of load frequency, soil- pile damping ratio and length to diameter ratio of pile on the behavior of pile foundation is determined. The results show that the magnitude of load and length to diameter ratio of pile have significant effect on pile response under harmonic lateral loads; displacement of the pile head increases, with increase in load magnitude and decrease in length to diameter ratio of pile. For the range of frequency studied in this paper (1 to 15 Hz), observed that this parameter doesn’t affect the pile head response.