Journal Published Online: 02 May 2011
Volume 39, Issue 5

Optical Measurement of Sand Deformation around a Laterally Loaded Pile

CODEN: JTEVAB

Abstract

A sand displacement field around a laterally loaded pile is measured using an image processing technique called digital image correlation. An optical system consisting of a camera, a loading frame, and a computer is developed to capture soil movement during laterally loading the pile. Two images, before and after a deformation, are used to calculate the soil displacement field. Two kinds of piles are used in the tests: one squared-section pile and the other a circular one. Dry loose sand samples are used to simplify the problem. The displacement and strain fields obtained in this study are similar to the ones reported from the field. A trapezoidal strain wedge is measured in sand in front of the laterally loaded pile. The strain wedge develops from the pile edges. The failure planes form an angle with the horizontal, which varies between approximately two-thirds of the frictional angle of soil for the square pile and three-fourths for the circular pile.

Author Information

Liu, Jinyuan
Department of Civil Engineering, Ryerson University, Toronto, ON, Canada
Yuan, Bingxiang
School of Civil Engineering and Mechanics, Lanzhou University, China
Mai, Van
Department of Civil Engineering, Ryerson University, Toronto, ON, Canada
Dimaano, Ralph
Department of Civil Engineering, Ryerson University, Toronto, ON, Canada
Pages: 6
Price: $25.00
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Details
Stock #: JTE103313
ISSN: 0090-3973
DOI: 10.1520/JTE103313