20.500.12556/RUL-85865 Vpliv togosti zemljin pri majhnih deformacijah na konstrukcije armirane z geomrežami diplomska naloga Influence of soil small strain stiffness on geogrid-reinforced soil walls Z diplomsko nalogo smo želeli prikazati vpliv dveh materialnih modelov za zemljine na obnašanje armiranih brežin nasipov. S programskim orodjem Plaxis 2D smo analizirali serijo različnih višin z geomrežami armiranih nasipov, z različnimi vgrajenimi materialnimi karakteristikami zemljin. Za modeliranje zemljin smo uporabili Hardening Soil model in Hardening Soil Small model. Omenjana modela sta nelinearno elasto-plastična konstitutivna modela z izotropnim utrjevanjem, s to razliko, da Hardening Soil Small model upošteva še togost zemljine pri majhnih deformacijah. Med posameznimi variantami nasipa smo primerjali rezultate za horizontalne računske pomike nasipa, osne sile v armaturnih geomrežah in strižne deformacije. Primerjava je pokazala, da pri izbrani geometriji in materialnih karakteristikah ni večjega odstopanja med rezultati za Hardening Soil model in rezultati dobljenimi za Hardening Soil Small model. Za numerični izračun sta nam bila vodilo Evrokod 7 in nemška smernica EBGEO. Out thesis describes the influence of two constitutive models on behavior of reinforced soil walls. Finite element numerical analyses with program Plaxis 2D was used to carry out a series of numerical simulations of different heights with geogrid reinforced embankments and different material parameters. For modeling of soil was used Hardening Soil model and Hardening Soil Small model. Both models are the nonlinear elastic-plastic constitutive models with sotropic hardening with the difference that Hardening Soil Small model also consider stiffness at very small strains. Among the various variants of the embankment, we compared the results of the calculation for horizontal displacements, the axial force in the reinforcement geogrids and shear strains. A comparison showed, there is no significant deviation between the results obtained from Hardening Soil model and the results obtained from Hardening Soil Small model in this cases. Numerical analysis of all embankment structures were made according to the Eurocode 7 and the German guidelines EBGEO. gradbeništvo diplomska naloga UNI geomehanika armirana zemljina graduation thesis civil engineering reinforced soil embankment true false false [N. Poznič] Slovenski jezik Angleški jezik Diplomsko delo 2016-09-28 03:24:36 2016-11-09 15:11:04 2022-12-21 08:32:51 0000-00-00 00:00:00 2016 0 Ljubljana 2016 Ljubljana XII, 90 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 624.121.532(043.2) 7697761 GRU3506_Poznic.pdf GRU3506_Poznic.pdf 1 F03D2D215D1524AABAEC36285A07DDBC f624897425cc24d4e7d281d4767ea7ad53845dcb0c84f18007d4ef7a4a7f9203 f58d39ac-a1b2-11eb-a523-00155dcfd717 20.500.12556/rul/8dc21270-f8a4-4e0d-9eac-4555dbd31374 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=98299 Fakulteta za gradbeništvo in geodezijo 0 0 0