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International Journal for Engineering Modelling, Vol. 34 No. 1 Regular Issue, 2021.

Izvorni znanstveni članak

https://doi.org/10.31534/engmod.2021.1.ri.03b

Numerical Simulation of Saturated and Unsaturated Consolidation Behaviour of Marl Residual Soil

Ana Raič orcid id orcid.org/0000-0002-7094-7174 ; University of Split, Faculty of Civil Engineering, Architecture and Geodesy, Matice hrvatske 15, 21 000 Split, CROATIA
Mijo Nikolić orcid id orcid.org/0000-0002-3710-9785 ; University of Split, Faculty of Civil Engineering, Architecture and Geodesy, Matice hrvatske 15, 21 000 Split, CROATIA
Nataša Štambuk Cvitanović orcid id orcid.org/0000-0003-1728-0021 ; University of Split, Faculty of Civil Engineering, Architecture and Geodesy, Matice hrvatske 15, 21 000 Split, CROATIA
Mirela Galić ; University of Split, Faculty of Civil Engineering, Architecture and Geodesy, Matice hrvatske 15, 21 000 Split, CROATIA

Puni tekst: engleski pdf 2.694 Kb

str. 31-47

preuzimanja: 1.092

citiraj

Sažetak

Consolidation tests were performed on reconstituted marl samples under saturated and unsaturated conditions in the geomechanical laboratory at the Faculty of Civil Engineering, Architecture and Geodesy (FCEAG). Reconstituted marl samples were used to simulate the behaviour of marl residual soil as a final product of weathering. The experimental results were implemented in the Plaxis 2D finite element software, and saturated and unsaturated consolidation tests were simulated using hydro-mechanical coupling analysis. Material parameters for the Mohr-Coulomb and Hardening Soil models were calculated from the obtained experimental results. The validity of above mentioned constitutive models for marl residual soil was evaluated using the consolidation tests results and considering the values of axial displacement and void ratio as deformation indicators for saturated and unsaturated conditions. The validity of the input parameters for unsaturated analysis (i.e. the obtained SWCC fitting parameters) and the applied boundary conditions were evaluated considering the achieved degree of saturation value for each calculation phase.

Ključne riječi

marl; residual soil; saturated and unsaturated consolidation testing; Plaxis 2D; hydro-mechanical coupling

Hrčak ID:

256153

URI

https://hrcak.srce.hr/256153

Datum izdavanja:

12.2.2021.

Posjeta: 2.068 *