A comparison of linear and nonlinear seismic tunnel-ground interaction analysesZlatanović, Elefterija (Avtor) Trajković-Milenković, Marina (Avtor) Lukić, Dragan (Avtor) Brčić, Stanko (Avtor) Šešov, Vlatko (Avtor) , Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru (Lastnik avtorskih pravic) circular tunnellinear/nonlinear soil behaviourbeam–spring modelplane-strain conditionssimplified dynamic FE analysissoil–structure interactionIn order to study the effects of a seismically induced tunnel–ground interaction, two-dimensional numerical analyses are performed using the sofware ANSYS. The study employs a coupled beam–spring model subjected to earthquake loading that is simulated under pure shear conditions and determined by a free-field ground-response analysis using the code EERA. The properties of the soil material are considered as both linear and nonlinear. The results obtained by linear dynamic analyses are compared with state-of-practice analytical elastic solutions. A comparison of the results of both linear and nonlinear analyses is also performed, and significant differences, as well as important factors influencing the tunnel–ground interaction for both cases, are evaluated.20162018-06-18 08:53:10Znanstveno delo70876ISSN: 1854-0171OceCobissID: 215987712COBISS_ID: 302919424ISSN pri članku: 1854-0171NUK URN: URN:SI:UM:DK:QQ8WHA7ZslFakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru