Statistical to Fuzzy Approach Toward CPT Soil Classification
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 125, Issue 3
Abstract
A soil engineering classification derived from the cone penetration test (CPT) involves the uncertainty of correlation between soil composition and soil mechanical behavior. This uncertainty results in overlaps of different soil types in currently used CPT soil classification systems. Accordingly, two statistical soil classification criteria, region estimation and point estimation, are suggested to address this problem. Further, a new fuzzy subset approach is introduced to develop a truly independent CPT soil engineering classification, and to establish a transition between the new fuzzy approach and conventional soil classifications by utilizing local site- and project-specific calibrations. CPT results conducted at the National Geotechnical Experimentation Site at Texas A&M University are used to demonstrate this new CPT soil engineering classification methodology.
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Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 125 • Issue 3 • March 1999
Pages: 179 - 186
History
Received: May 13, 1996
Published online: Mar 1, 1999
Published in print: Mar 1999
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