Normalizing the CPT for Overburden Stress
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VIEW THE REPLYPublication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 132, Issue 3
Abstract
Effective overburden stress can have a significant influence on cone penetration test (CPT) measurements. This influence can lead to an incorrect assessment of soil strength/resistance for such purposes as liquefaction triggering analysis. For an accurate measurement of tip and sleeve resistance, unbiased by overburden stress, it is essential to normalize these index measurements appropriately. Presented herein is a comprehensive study reviewing all aspects of CPT normalization. A result of this study is a variable normalization procedure for the CPT that is based on both empirical results and theoretical analysis. This paper presents these results in the form of an improved normalization scheme and discusses its application in practice.
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Acknowledgments
Financial support was provided by the California Department of Transportation (CalTrans), the California Energy Commission (CEC), and Pacific Gas and Electric Company (PG&E) through the Pacific Earthquake Engineering Research (PEER) Center’s Lifelines Program, Task 3D02. This support is greatly appreciated. The writers would like to thank the anonymous reviewers for their insightful comments and suggestions that improved the content of this paper.
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 132 • Issue 3 • March 2006
Pages: 378 - 387
Copyright
© 2006 ASCE.
History
Received: May 21, 2004
Accepted: Jun 7, 2005
Published online: Mar 1, 2006
Published in print: Mar 2006
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