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Laboratorijske preiskave nesaturiranih zemljin = laboratory tests of unsaturated soil : diplomsko deloKuk, VikicaDiplomsko delo obravnava laboratorijske preiskave nesaturiranih zemljin s poudarkom preiskovanja fenomena sukcije. Sukcija je merilo za energijo, ki v strukturo zemljine privlači vodo ali jo tam ... zadržuje. V geotehniki sukcijo merimo s pomočjo različnih metod, kjer nas zanimajo predvsem vrednosti matrične sukcije. Meritve sukcije so bile opravljene v Geomehanskem laboratoriju Zavoda za gradbeništvo Slovenije, kjer smo sukcijo merili s pomočjo Bishop-Wesley dvostenske triosne celice in s potenciometrom, z namenom določanja retencijske krivulje v fazi sušenja vzorcev. Preiskave so potekale na dveh različnih materialih: trdnih peščeno meljnih zemljinah in na vzorcih mulja. Trdni melji so pri gradnji v slovenskem prostoru prisotni izjemoma in zato v geotehničnem smislu deležni obsežnejših preiskav. Veliko skrb predstavlja spreminjanje trdnostnih lastnosti v odvisnosti od zasičenosti, saj so v primeru, ko so izpostavljeni močenju ali obremenitvam, podvrženi porušitvam (kolapsu). Na izbranih vzorcih so bile najprej izvedene osnovne klasifikacijske preiskave: sejalne analize, meritve vlažnosti in gostote. Poleg merjenja sukcije v fazi sušenja smo meritve sukcije izvedli tudi v fazi vlaženja zemljine. Izdelava retencijskih krivulj temelji na podlagi uporabe različnih matemačnih modelov za opis retencijskih krivulj. Dobljene krivulje smo primerjali med preiskovanimi zemljinami in med uporabljenimi modeli ter opazovali, kateri model se izmerjenim vrednostim najbolje približa. Rezultati so pokazali dobro prileganje retencijskih krivulj izmerjenim vrednostim in ujemanje izmerjenih vrednosti sukcije z že znami rezultati iz literature.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [V. Kuk], 2015Language - slovenianCOBISS.SI-ID - 1211230
Author
Kuk, Vikica
Other authors
Fifer Bizjak, Karmen
Topics
inženirska geologija |
geomehanske preiskave |
nesaturirane zemljine
Library/institution |
City | Acronym | For loan | Other holdings |
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NTF, Department of Geology, Ljubljana | Ljubljana | NTFGEO |
outside loan 1 cop.
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Kuk, Vikica | |
Fifer Bizjak, Karmen | 11897 |
Source: Personal bibliographies
and: SICRIS
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