Variability of some geotechnical parameters in South Eastern Nigeria
Site ONYEJEKWE, Chidi B. N. EDU, Jeremiah C. OBI
Abstract. The variability of geotechnical material is usually modeled as a random field which can be described concisely by its mean, variance and the scale of fluctuation. This paper focuses on the second moment statistics (mean and variance, including the coefficient of variation [COV]), and the probability distribution of geotechnical properties of fine-grained soils in South Eastern Nigeria. Published values of second moment statistics of geotechnical parameters are based on data sourced from far and wide and hence may not be most appropriate for local situations. The total COV of parameters is determined as the components of the COV, like measurement error, are not considered. Data on parameters are grouped according to test methods deployed. Probability distribution of parameters were also determined. The results of this study: mean, variance, COV, and probability distribution of parameters will be very useful in preliminary engineering and in stimulating the use of probabilistic design methods like reliability-based design (RBD).
Keywords
Soil Variability, Coefficient of Variation, Probability Density Function, South Eastern Nigeria
Published online 2/25/2025, 11 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Site ONYEJEKWE, Chidi B. N. EDU, Jeremiah C. OBI, Variability of some geotechnical parameters in South Eastern Nigeria, Materials Research Proceedings, Vol. 48, pp 325-335, 2025
DOI: https://doi.org/10.21741/9781644903414-36
The article was published as article 36 of the book Civil and Environmental Engineering for Resilient, Smart and Sustainable Solutions
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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