Investigation of the Behavior of Piled Raft Foundations in Sand by Numerical Modeling

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Title Investigation of the Behavior of Piled Raft Foundations in Sand by Numerical Modeling
Author Oh, Erwin Yan-Nam; Bui, Quan-Minh; Surarak, Chanaton; Balasubramaniam, Arumugam
Publication Title Proceedings of the Nineteenth (2009) International Offshore and Polar Engineering Conference
Editor Jin S. Chung, Simon Prinsenberg, Seok Won Hong, Shuichi Nagata
Year Published 2009
Place of publication USA
Publisher International Society of Offshore and Polar Engineers
Abstract This paper is on 3-D analysis of piled raft foundations on sand. The numerical analysis was carried out with three typical load intensities of the serviceability load. Further, extensive parametric studies were carried out with the variables pile spacing, number of piles, pile diameter, raft dimension ratio, and raft thickness. The maximum settlement of the piled rafts depends on the pile spacing and the number of piles; while the raft thickness does not have a significant effect. In all cases, the normalized settlement recorded is mostly less than 2% of the raft width and the maximum value was noted for the 8x27m piled raft. The increase in raft thickness reduces the differential settlement in the foundations. The raft-soil stiffness (Krs) is shown to influence the differential settlement and has the largest influence. The performance of piled raft in sandy soil condition is assessed and general conclusions are also made.
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Copyright Statement Copyright 2009 ISOPE. The attached file is reproduced here in accordance with the copyright policy of the publisher, for your personal use only. No further distribution permitted. For information about this conference please refer to the publisher's website.
ISBN 9781880653531
Conference name Nineteenth (2009) International Offshore and Polar Engineering Conference
Location Osaka, Japan
Date From 2009-06-21
Date To 2009-06-26
Date Accessioned 2009-11-28
Date Available 2010-06-03T09:25:13Z
Language en_AU
Research Centre Centre for Infrastructure Engineering and Management
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Civil Geotechnical Engineering
Publication Type Conference Publications (Full Written Paper - Refereed)
Publication Type Code e1d

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