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RESEARCH PAPERS

Creep Parameters for Pile Settlement Equations

[+] Author and Article Information
D. Stelzer, O. B. Andersland

Department of Civil and Environmental Engineering, Michigan State University, East Lansing, MI 48824

J. Energy Resour. Technol 111(4), 258-263 (Dec 01, 1989) (6 pages) doi:10.1115/1.3231434 History: Received June 25, 1988; Revised July 11, 1989; Online October 22, 2009

Abstract

Friction pile settlement in frozen ground is tyically predicted on the basis of a creep equation relating shear stresses at the soil/pile interface to pile displacement rates. Creep parameters are used to characterize soil type, soil/ice structure, temperature, and loading conditions. Experimental tests involving model steel piles embedded in frozen sand provided data showing that change in a given test variable can alter the numerical value for some of the creep parameters. The test variables included static, incremental, and dynamic loading; pile surface roughness; soil ice content; and sand particle size. Changes observed included the apparent effect on creep rate when a small dynamic load was superimposed on the static load. A tabulation of observed creep parameter changes is included.

Copyright © 1989 by ASME
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