Site soundings density for geotechnical investigation with combined fuzzy and probabilistic input information

Djamalddine Boumezerane*, Smain Belkacemi, Bojan Zlender

*Corresponding author for this work

Research output: Contribution to journalArticle


A fuzzy sets decision support system is proposed for geotechnical site investigation. The system considers parameters such as geology and soil variability that affect the required number of soundings to adequately characterize a site. It permits also to consider vagueness and lack of information. On the basis of available qualitative and quantitative information, the system allows estimating, for common projects, the number of site soundings. Monte Carlo simulations of entry ranges, where each point has a uniform probability distribution, permit to arrange the output in form of histograms fitted with probability functions. The cases presented show that the fuzzy inference system can be used as a systematic decision support for engineers dealing with site characterization.
Original languageEnglish
Pages (from-to)547–559
Number of pages13
JournalGeotechnical and Geological Engineering
Issue number2
Early online date31 Jan 2014
Publication statusPublished - 30 Apr 2014
Externally publishedYes



  • Decision support system
  • Fuzzy sets
  • Geotechnical investigation
  • Soundings
  • Monte-Carlo simulation
  • Probability distribution

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