diplomska naloga
Nina Poznič (Avtor), Boštjan Pulko (Mentor), Tomo Cerovšek (Član komisije)

Povzetek

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.

Ključne besede

gradbeništvo;diplomska naloga;UNI;geomehanika;armirana zemljina;

Podatki

Jezik: Slovenski jezik
Leto izida:
Tipologija: 2.11 - Diplomsko delo
Organizacija: UL FGG - Fakulteta za gradbeništvo in geodezijo
Založnik: [N. Poznič]
UDK: 624.121.532(043.2)
COBISS: 7697761 Povezava se bo odprla v novem oknu
Št. ogledov: 2099
Št. prenosov: 560
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Angleški jezik
Sekundarni naslov: Influence of soil small strain stiffness on geogrid-reinforced soil walls
Sekundarni povzetek: 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.
Sekundarne ključne besede: graduation thesis;civil engineering;reinforced soil;embankment;
Vrsta datoteke: application/pdf
Vrsta dela (COBISS): Diplomsko delo
Komentar na gradivo: Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Strani: XII, 90 str.
ID: 9223047