Title: Unloading–reloading modulus evaluation for deep soils


Keywords: HSS model, triaxial tests, strain parameters

Abstract: Soil parameters from triaxial tests are required for application of hardening soil small strain model in the geotechnical numerical analyses. In addition to the parameters such as the initial stiffness modulus (E0), stiffness modulus at 50% of the deviatoric stress value (E50), unloading– –reloading modulus (Eur) should be evaluated. The paper presents the test results for soil samples collected from the boreholes approximately 80 m deep. The main focus is put on evaluation of Eur parameter as requiring more advance tests in comparison to E0 and E50 parameters that may be evaluated on the basis of standard triaxial tests with shear wave velocity measurement. Based on the triaxial test results a correlation formula is proposed between Eur modulus and basic physical properties of soil and changes of effective stress values. The triaxial test procedures aimed at evaluation of E0, E50 and Eur are also presented.

DOI: 10.22630/PNIKS.2018.27.2.11

APA style references: Tymiński, W., Stefanek, P., Daniluk, H. & Kiełczewski, T. (2018). Unloading–reloading modulus evaluation for deep soils. Scientific Review Engineering and Environmental Sciences, 27 (2), 114-122. doi: 10.22630/PNIKS.2018.27.2.11

APA style citation in text: The first time citation in text: (Tymiński, Stefanek, Daniluk & Kiełczewski, 2018), next citation: (Tymiński et al., 2018)

Chicago style references: Tymiński, Wojciech, Paweł Stefanek, Hubert Daniluk, Tomasz Kiełczewski. "Unloading–reloading modulus evaluation for deep soils." Scientific Review Engineering and Environmental Sciences, 80 ser., vol. 27, no 2, (2018): 114-122. doi: 10.22630/PNIKS.2018.27.2.11.

Chicago style citation in text: (Tymiński et al. 2018)

Bibtxt style references: Bibtxt_utf8_80art2en.bib

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