Evaluation of the relationships between the laboratory and in situ test results carried out on clayey soils with multiple regression analysis: Van (Turkey) reverse fault area

Autor: Elif E. Özvan, Hasan Çetin, Ali Özvan, İsmail Akkaya
Rok vydání: 2022
Předmět:
Zdroj: Arabian Journal of Geosciences. 15
ISSN: 1866-7538
1866-7511
Popis: Many in situ and laboratory tests are being performed to determine the engineering properties of soils. Several relationshipscan be established between in situ tests and laboratory tests to ensure that both achieve similar results. In this study, in situstandard penetration test and Menard pressuremeter tests were performed on the clayey samples that are in high and lowplasticity soil class taken from 6 boreholes reaching to the hanging walls and footwalls of the thrust fault. Disturbed andundisturbed samples were collected in the field, and their physical and mechanical properties were determined in the laboratory.Corrected SPT (SPT-N60), Menard deformation modulus (EM), and net limit pressure (PL) values were obtained as partof in situ tests performed. These values were then compared with physical properties like the liquid limit, plasticity index,natural moisture content (w), and mechanical properties like the pre-consolidation pressure (σpc) and cohesion (c) that weredetermined through laboratory tests, and linear and non-linear multiple regression analyses were performed on them. Theanalyses revealed multiple regression equations between dependent variable EM and independent variables SPT-N60, w, c,and σpc were obtained with a high degree of determination coefficient. The results also indicate that these multiple regressionequations obtained thusly so provided more accurate results compared to simple regression correlations.
Databáze: OpenAIRE
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