Artificial intelligence for prediction of physical and mechanical properties of stabilized soil for affordable housing

Woubishet Zewdu Taffese*, Kassahun Admassu Abegaz

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

Soil stabilization is the alteration of physicomechanical properties of soils to meet specific engineering requirements of problematic soils. Laboratory examination of soils is well recognized as appropriate for examining the engineering properties of stabilized soils; however, they are labor-intensive, time-consuming, and expensive. In this work, four artificial intelligence based models (OMC-EM, MDD-EM, UCS-EM+, and UCS-EM) to predict the optimum moisture content (OMC), maximum dry density (MDD), and unconfined compressive strength (UCS) are developed. Experimental data covering a wide range of stabilized soils were collected from previously published works. The OMC-EM, MDD-EM, and UCS-EM models employed seven features that describe the proportion and types of stabilized soils, Atterberg limits, and classification groups of soils. The UCS-EM+ model, besides the seven features, employs two more features describing the compaction properties (OMC and MDD). An optimizable ensemble method is used to fit the data. The model evaluation confirms that the developed three models (OMC-EM, MDD-EM, and UCS-EM+) perform reasonably well. The weak performance of UCS-EM model validates that the features OMC and MDD have substantial significance in predicting the UCS. The performance comparison of all the developed ensemble models with the artificial neural network ones confirmed the prediction superiority of the ensemble models.

Original languageEnglish
Article number7503
Number of pages15
JournalApplied Sciences (Switzerland)
Volume11
Issue number16
DOIs
Publication statusPublished - 2 Aug 2021
MoE publication typeA1 Journal article-refereed

Keywords

  • Artificial intelligence
  • Artificial neural network
  • Cement
  • Ensemble method
  • Lime
  • Maximum dry density
  • Optimum moisture content
  • Soil
  • Stabilized soil
  • Unconfined compressive strength

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