Thrust and bending moment of rigid piles subjected to moving soil

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Title Thrust and bending moment of rigid piles subjected to moving soil
Author Guo, Wei Dong; Qin, Hongyu
Journal Name Canadian Geotechnical Journal
Year Published 2010
Place of publication Canada
Publisher NRC Research Press
Abstract An experimental apparatus was developed to investigate the behaviour of vertically loaded free-head piles in sand undergoing lateral soil movement (wf). A large number of tests have been conducted to date. Presented here are 14 typical model pile tests concerning two diameters, two vertical pile loading levels, and varying sliding depths with the movement wf driven by a triangular loading block. Results are provided for driving force as well as for induced shear force (T), bending moment (M), and deflection ( y) along the piles with wf / normalized sliding depth. The tests enable simple expressions to be proposed, drawn from the theory for a laterally loaded pile. The new expressions well capture the evolution of M, T, and y with soil movement observed in current model tests, and the three to five times difference in maximum bending moment (Mmax) from the two modes of loading. They further offer a good estimate of Mmax for eight in situ pile tests and one centrifuge test pile. The study quantifies the sliding resistance offered by a pile for the given wf profiles, pile location (relative to the boundary), and vertical load. It establishes the linear correlation between the maximum thrust (resistance T) and Mmax, regardless of the magnitudes of wf.
Peer Reviewed Yes
Published Yes
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Copyright Statement Copyright 2010 NRC Research Press. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
Volume 47
Issue Number 2
Page from 180
Page to 196
ISSN 0008-3674
Date Accessioned 2011-01-20
Language en_AU
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Civil Engineering
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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