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Evaluation and use of clustering algorithms for standard penetration test data classification

Published online by Cambridge University Press:  14 July 2014

A. Burak Göktepe ,
Selim Altun  and
Alper Sezer
A. Burak Göktepe
Affiliation:
Kurum Holding, Rruga Bilal Golemi, Albania
Selim Altun
Affiliation:
Civil Engineering Department, Ege University, Izmir, Turkey
Alper Sezer*
Affiliation:
Civil Engineering Department, Ege University, Izmir, Turkey
*
Reprint requests to: Alper Sezer, Ege Universitesi Insaat Muhendisligi Bolumu 35100, Izmir, Turkey. E-mail: alper.sezer@ege.edu.tr
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Abstract

The standard penetration test (SPT) is the most common test conducted in the field, and it is used to determine in situ properties of different soils. Although it is a matter of debate, these tests are also used for the determination of the consistency of fine-grained soils, whereby the test results can also be utilized to establish numerous empirical correlations to predict the strength of soils in the field. In this study, unsupervised clustering algorithms were employed to classify the SPT standard penetration resistance value (SPT-N) in the field. In this scope, shear strength and liquidity index parameters were used to classify the SPT-N values by taking the classification system of Terzaghi and Peck (1967) into consideration. The results showed that the input parameters were successful for classifying the SPT-N value to an acceptable degree of strength attribute. Therefore, in cases where the SPT tests are unreliable or could not be performed, laboratory tests on undisturbed specimens can give valuable information regarding the consistency and SPT-N value of the soil specimen under investigation. Data in this study is based on several tests that were conducted in a region; nevertheless, it is advised that the results of this study should be evaluated using global data.

Keywords

ConsistencyFuzzy C-Means MethodHard K-MeansSelf-Organizing MapShear StrengthStandard Penetration Test Data
Type
Regular Articles
Information
AI EDAM , Volume 29 , Issue 1 , February 2015 , pp. 55 - 64
Copyright
Copyright © Cambridge University Press 2014 

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