Prediction and performance analysis of compression index of multiple‑binder‑treated soil by genetic programming approach
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Date
2021
Journal Title
Journal ISSN
Volume Title
Publisher
Nanotechnology for Environmental Engineering
Abstract
The use and its advantage in overcoming time and equipment needs of an evolutionary prediction technique known as the
genetic programming have been studied using unsaturated sample of soft soil treated with multiple binders. The soil classified
as weak and highly plastic was stabilized and multiple experiments were conducted to measure the effect of the dosages
of the treatment on the selected properties. The geotechnics of the exercise showed that the studied parameters substantially
improved with increased proportion of hybrid cement (HC) and nanostructured quarry fines (NQF). These measured selected
properties were further deployed to predict the compression index of the soil. The prediction operation proposed four-model
equation by the degree of importance, sensitivity and influence of the independent parameters. This shows eventually that
plasticity index has the greatest sensitivity on the compression behaviour of clay soils. The performance analysis shows that
the models have very low error with model trial 4 presented in Eq. 7: CGP
C =
(IP−Hc⋅NQF) ( part∕ max)NQF (Ip∕wmax)
Ln(wmax+3.0) , showing the
least error with more consideration for the influence of more of the selected variables. It also exhibited the highest degree
of determination. Generally, GP has proven to be flexible, fast and able to predict models for engineering problems for use
in design and performance study.
Description
Keywords
Nanostructured quarry fines, Genetic programming (GP), Performance analysis and error analysis, Soft computing, Compression index, Unsaturated soil
Citation
Onyelowe, K. C., Ebid, A. M., Nwobia, L., & Dao-Phuc, L. (2021). Prediction and performance analysis of compression index of multiple-binder-treated soil by genetic programming approach. Nanotechnology for Environmental Engineering, 6(2), 1-17. https://doi.org/10.1007/s41204-021-00123-2