Identification of geotechnical units in soil exploration through principal component analysis and clustering

Obtaining accurate information on soil characteristics is essential for large‐scale construction projects. Geotechnical exploration methods are commonly used to obtain information on soil characteristics. However, integrating the characteristics obtained through different exploration methods can be...

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Bibliographic Details
Published in:International journal for numerical and analytical methods in geomechanics 2024-04, Vol.48 (6), p.1681-1699
Main Authors: San Roman Iturbide, Oscar, Botero Jaramillo, Eduardo
Format: Article
Language:English
Subjects:
Cluster analysis
Clustering
Cone penetration tests
cone penetration tests (CPT)
Construction
Construction industry
Exploration
Geotechnical engineering
geotechnical unit
Logging
principal component analysis (PCA)
Principal components analysis
Project engineering
Soil
Soil characteristics
Soil sampling
Soil types
standard penetration tests (SPT)
Stratigraphy
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Summary:Obtaining accurate information on soil characteristics is essential for large‐scale construction projects. Geotechnical exploration methods are commonly used to obtain information on soil characteristics. However, integrating the characteristics obtained through different exploration methods can be challenging. To address this problem, this study proposes the use of Principal Component Analysis (PCA) to combine geotechnical variables obtained from cone penetration tests (CPT), standard penetration tests (SPT) with soil sampling, and Suspension PS Logging tests. PCA and clustering analysis were applied to the data collected from a study area, and the results were highly effective in identifying the stratigraphy and soil type, leading to the definition of geotechnical units. This approach provides valuable information for geotechnical engineering projects, enhancing the accuracy of stratigraphic investigations and improving our understanding of soil characteristics and their influence on construction projects. Moreover, the proposed technique can be applied in other areas and different types of soils, making it a valuable tool for evaluating soil characteristics.
ISSN:0363-9061
1096-9853
DOI:10.1002/nag.3704