Back-analysis and interpretations of driven and bored pile tests data in Bangkok sub-soils

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Title Back-analysis and interpretations of driven and bored pile tests data in Bangkok sub-soils
Author Balasubramaniam, Aramugam; Phienwej, N.; Oh, Yan-Nam Erwin; Kamalarasa, Sanmugarasa
Publication Title To the eNZ of the Earth
Editor Geoffrey Farquhar, Philip Kelsey, John Marsh, Debbie Fellows
Year Published 2004
Place of publication New Zealand
Publisher Centre for Continuing Education, New Zealand Geotechnical Society
Abstract As a necessity to support an increasing magnitude of loads from tall buildings and long span bridges, the piling practice in the Bangkok Plain has moved several phases from driven pre-cast reinforced and prestressed concrete piles of smaller cross sections to spun piles and large diameter bored piles. The Chao Phraya plain in which the Bangkok city is located is low-lying and consists of a broad basin filled with sedimentary soils which form alternate layers of clay, sand, and clay. The upper clay layer is soft and highly compressible followed by a stiff clay layer extending to about 20 m or so and then followed by a layer of sand. Driven piles are normally taken down to this upper sand layer. However when the demand for a higher capacity arise, these piles cannot be extended in length due to construction problems and as such bored piles are needed to be taken down to as deep as 50 to 60 m. Below the upper clay layer there are eight interconnected aquifers from which ground water is pumped from deep wells. Thus in the design of piled foundations aspects such as the negative skin friction due to pile driving as well as deep well pumping are also needed to be considered. Some of the experiences gained over a period of 30 years in the study of piled foundations in the Bangkok Plain are briefly presented in this paper.
Peer Reviewed Yes
Published Yes
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Copyright Statement Copyright 2004 New Zealand Geotechnical Society Inc.. Use hypertext link to access the conference's webpage. The attached file is posted here with permission of the copyright owner[s] for your personal use only. No further distribution permitted.
ISBN 0-86869-123-2
Location Auckland, New Zealand
Date From 2004-02-08
Date To 2004-02-11
Date Accessioned 2005-02-08
Language en_AU
Faculty Faculty of Engineering and Information Technology
Subject PRE2009-Geotechnical Engineering
Publication Type Conference Publications (Full Written Paper - Refereed)
Publication Type Code e1

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