Scientific Research and Essays

  • Abbreviation: Sci. Res. Essays
  • Language: English
  • ISSN: 1992-2248
  • DOI: 10.5897/SRE
  • Start Year: 2006
  • Published Articles: 2754

Full Length Research Paper

Adaptive neuro fuzzy inference system for estimating particle diameter of soils in micro structure for varying quantities of sodium hexametaphosphate

  Salih BektaÅŸ1* and Ercan Ozgan2        
  1Civil Engineering Department, Engineering Faculty, Aksaray University, Merkez Kampüs, Aksaray, Turkey. 2Structural Department, Technical Education Faculty, Düzce Üniversity, Konuralp YerleÅŸkesi, Düzce, Turkey.
Email: [email protected]

  •  Accepted: 10 March 2010
  •  Published: 30 April 2010



In the present study, 0, 10, 20, 30, 40, 50 and 60 g. Sodium hexametaphosphate (NaPO3) suspensions were prepared for hydrometer tests. After the completion of the tests, the particle diameters of the soil were calculated for each hydrometer reading at time intervals of (0, 1, 2, 5, 10, 15, 30, 60, 120 and 260 min). A model was developed using an adaptive neuro-fuzzy inference system (ANFIS) to predict the particle diameter of soil for different cases without the need for a test. The quantities of the NaPO3 and the hydrometer reading times were used as inputs in the model.  Test results and predicted outcomes were compared and high correlations were obtained.


Key words: Soil mechanics, particle diameters, hydrometer test, ANFIS.