Volume 7, Issue 3 (Sept. 2009)
IJCE 2009, 7(3): 170-175 |
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Baziar M, Ghorbani A, Katzenbach R. Small-Scale Model Test and Three-Dimensional Analysis of Pile-Raft Foundation on Medium-Dense Sand. IJCE 2009; 7 (3) :170-175
URL: http://ijce.iust.ac.ir/article-1-288-en.html
URL: http://ijce.iust.ac.ir/article-1-288-en.html
Abstract: (22685 Views)
The pile-raft foundation is a combination of a raft foundation with piles. Pile-raft
foundation has been widely designed, assuming all structure loads to be transferred to piles
without considering contribution of the load taken by contact surface between raft and soil.
Methods of analysis currently used in practice are based upon relatively conservative
assumptions of soil behavior or on the less realistic soil-structure interaction. In this study the
bearing -settlement behavior of combined pile-raft foundations on medium dense sand was
investigated. 1g physical model test was performed on a circular rigid raft underpinned with four
model piles. Numerical simulation was also carried out on the model test, using FLAC-3D, to
show compatibility of the numerical analysis with the test. The obtained results showed very good
accuracy of the numerical method used in this study as long as the applied load does not exceed
the working load, while the performance of numerical model was relatively good for the loads
beyond working load.
Type of Study: Research Paper |
Subject:
Structure-Earthquake
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