Tatistical evaluation of geotechnical correlations

Waled A. Daoud, Kiyonobu Kasama, Naser M. Saleh, Abdelazim M. Negm

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Geotechnical correlations are widely used because it can provide fast and cost-effective means of parameter estimation using simple tests. Most of the current correlations were derived from data fitting of measurements for specific site conditions and need to be evaluated before used in other sites. During the correlation development, the deviation of the correlation from the measured values was evaluated using simple statistical measures. A better method of correlation evaluation may reduce the overall deviation of the geotechnical parameter. Amended Theil Inequality Coefficient (ATIC) is proposed as an evaluation tool because it has the advantage that it considers both position and trend conformities between observed and correlated values. To address the efficiency and rationality of ATIC, evaluation of, 92 compression index correlations by ATIC and different statistical measures was carried out. Comparison between the results showed that ATIC is efficient in assessing the best and worst correlations and it can be considered a good tool for correlations evaluation.

Original languageEnglish
Pages (from-to)1929-1935
Number of pages7
JournalInternational Journal of GEOMATE
Issue number3
Publication statusPublished - 2016

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology
  • Soil Science


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