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Apr 26, 2012
Comparative Site Tests for Various Types of Cone Penetrometers in Peat Ground
Authors: Kengo Sawai, Satoshi Nishimoto, and Hirochika HayashiAuthor Affiliations
Publication: Geotechnical Engineering for Transportation Projects
Abstract
With the objective of examining the accuracy of electric cone penetration tests (CPT) performed in peat layers, we conducted tests to compare electric cone penetrometers with Dutch double tube cone penetrometers, which have been used conventionally. Test results showed that electric cone penetrometers demonstrated test accuracy equal to that of Dutch double tube cone penetrometers, and the following correlations were found: qmechanical = 0.85 qt for clay and organic clay layers and qmechanical = qt for peat layers ("qmechanical" refers to penetration resistance measured using Dutch double tube cone penetrometers [Dutch cone penetration resistance] and "qt" refers to penetration resistance measured using electric cone penetrometers [CPT resistance]).
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© 2004 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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Kengo Sawai
Researcher in the Geotechnical Division, Civil Engineering Research Institute of Hokkaido, Hiragishi 1-3-1-34, Toyohira-ku, Sapporo 062-8602 JAPAN
Satoshi Nishimoto
Director of the Geotechnical Division, Civil Engineering Research Institute of Hokkaido, Hiragishi 1-3-1-34, Toyohira-ku, Sapporo, 062-8602 JAPAN
Hirochika Hayashi
Senior Researcher in the Geotechnical Division, Civil Engineering Research Institute of Hokkaido, Hiragishi 1-3-1-34, Toyohira-ku, Sapporo 062-8602 JAPAN
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