Journal Published Online: 24 May 2018
Volume 41, Issue 4

Experimental and Simple Semiempirical Methods for Interpreting the Axial Load Versus Settlement Behaviors of Single Model Piles in Unsaturated Sands



Experimental studies were undertaken to investigate the vertical load versus displacement behavior of single model piles in sand (i.e., Unimin 7030 sand) under both saturated and unsaturated conditions. Stainless steel model piles with three different diameters (i.e., 19.25, 31.75, and 38.3 mm) with a length of 350 mm were used to conduct the pile load tests. Semiempirical methods were proposed to successfully predict the variation of end- and shaft-bearing capacities of single piles with respect to matric suction by modifying three conventional end-bearing capacity equations (Terzaghi 1943; Hansen 1970; Janbu 1976) and the β-method (Burland 1973), respectively. In addition, finite element analyses were also carried out to simulate vertical load versus settlement behaviors of model pile tests using a commercial finite element software, SIGMA/W (GeoStudio 2007).

Author Information

Vanapalli, Sai K.
Department of Civil Engineering, University of Ottawa, Ottawa, ON, Canada
Sheikhtaheri, Mohamadjavad
AMEC Foster Wheeler, Calgary, AB, Canada
Oh, Won Taek
Department of Civil Engineering, University of New Brunswick, Fredericton, NB, Canada
Pages: 19
Price: $25.00
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Stock #: GTJ20170152
ISSN: 0149-6115
DOI: 10.1520/GTJ20170152