20.500.12556/RUL-72816 Vpliv stopnje prekonsolidacije in hitrosti striženja v direktnem strižnem aparatu na strižne karakteristike zemljin diplomska naloga Effects of overconsolidation ratios and the shear rate on the shear strength of soils in the direct shear apparatus V diplomski nalogi smo raziskovali, kako različni pogoji striženja vplivajo na rezultate določitve strižne trdnosti v direktnem strižnem aparatu. Strižne preiskave smo izvajali pri različnih hitrostih striženja, brez prekinitve in s prekinitvijo. Preiskovali smo tudi vplive izbranega območja vertikalnih normalnih napetosti ter vplive prekonsolidacije na rezultat preiskave. Material, ki smo ga uporabili v raziskavah je morski sediment iz Luke Koper, ki se črpa iz morskega dna in skladišči na kopnem v začasnih bazenih. Zato se ta sediment imenuje reful. Za identifikacijo refula smo opravili raziskave, s katerimi smo določili vlažnost, gostoto zrn – metoda s piknometrom, zrnavostno sestavo, Attebergove meje plastičnosti in vpijanje vode po Enslin Neffu. Ugotovili smo, da hitrost striženja in stopnja prekonsolidacije zelo vplivata na rezultate raziskav. In our thesis we investigated how the shear rate and the overconsolidation ratio (OCR) influence the measured shear strength in the direct shear apparatus. Shear tests were performed also by comparing the influence of low and higher vertical normal stress as well as the temporary breakage during shearing to the test results. The test samples were taken from the temporary lagoons, where the dredged mud from the Port of Koper has been stored. The tests performed to identify the physical properties of the mud included determination of: water content, Atterberg limits, particle density, particle size distribution and water adsorption by Enslin Neff. We found that the the shear rate and the overconsolidation ratio have a large influence on the measured shear strenght in the direct shear apparatus. gradbeništvo diplomska naloga UNI direktna strižna preiskava strižna trdnost prekonsolidacija hitrost striženja direct shear test shear strenght overconsolidation shear rate true false false [N. Šelekar ] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2015-10-02 06:46:13 2015-10-02 06:46:14 2022-12-16 12:08:01 0000-00-00 00:00:00 2015 0 Ljubljana 2015 Ljubljana IX, 32 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 7279713 BG1212_Selekar.pdf BG1212_Selekar.pdf 1 B8366C71F6EEAD4ED8022B1907DCEF02 5c7594a64a7a9f7de98a7c2bcc4d36d66330481d25454e2635495e658013713f 38e7cb70-a1ae-11eb-a523-00155dcfd717 20.500.12556/rul/251a93bb-df73-492d-ba26-9bdf8a12d32f https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=86252 Fakulteta za gradbeništvo in geodezijo 0 0 0