20.500.12556/RUL-140692 Analize stabilnosti vkopov v tanko plastovitih skladih zemljin diplomska naloga št.: 422/B-GR Stability analyses of cut slopes in thin-layerd soil deposits graduation thesis no.: 422/B-GR Pri načrtovanju velikih posegov v naravno okolje, kot so globoki vkopi, ki se pojavljajo na trasah prometnic, so ključnega pomena kvalitetne terenske in laboratorijske preiskave tal. Z njimi pridobimo podatke o njihovi sestavi in o lastnostih materialov, kar nam omogoča definiranje najustreznejšega modela tal, na katerem v računskih analizah stabilnosti preverjamo varnost vkopov napram porušitvi. Težava se pojavi, kadar posege načrtujemo na območjih večjih medgorskih sedimentacijskih bazenov, kjer tla sestavljajo pliokvartarni sedimenti, katerih značilnost so tanko plastoviti skladi menjajočih se slojev glin in peskov. Táko plastovito strukturo tal z upoštevanjem materialov z različnimi lastnostmi je v analizah stabilnosti nemogoče upoštevati. Da bi se izognili konservativnim poenostavitvam, ki se jih projektanti običajno poslužujejo tako, da tanko plastovito sestavo tal upoštevajo kot homogen sloj z »najslabšimi« lastnostmi, so v diplomski nalogi prikazani primeri določitve bolj racionalnih izbir strižnih karakteristik za nadomesten homogeni sloj. Z upoštevanjem teh karakteristik lahko v računskih analizah stabilnosti tanko plastovito zgradbo tal nadomestimo s homogenim slojem, ki da enako vrednost varnostnega faktorja, kot je ta v dejanskih pogojih. When planning major interventions in the natural environment, such as the deep cut slopes that occur along the traffic routes, good quality field and laboratory soil investigations are essential. These provide information on the composition of the ground and the properties of the materials, allowing us to define the most appropriate ground model on which to check the safety of the cut slopes against collapse in computational stability analyses. The problem arises when the interventions are planned in areas of large intermontane sedimentary basins, where the ground is composed of Plio-Quaternary sediments, characterised by thin-layered deposits of alternating layers of clays and sands. Such a layered ground structure, taking into account materials with different properties, is impossible to take into account in stability analyses. In order to avoid the conservative simplifications commonly used by designers by considering the thin-layered soil structure as a homogeneous layer with the »worst« properties, the thesis presents examples of how to determine more rational choices of shear characteristics for an alternative homogeneous layer. By taking these characteristics into account, a thin layered soil structure can be replaced in computational stability analyses by a homogeneous layer that gives the same value of the factor of safety as that in actual conditions. gradbeništvo diplomske naloge UNI GR B-GR tanko plastoviti skladi zemljin gline peski vkopi analize stabilnosti varnostni faktor strižne karakteristike graduation thesis civil engineering thin-layerd soil deposits clays sands cut slopes stability analyses factor of safety shear characteristics true false false [M. Stopar] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2022-09-17 08:45:02 2022-09-17 08:45:08 2025-08-08 13:21:25 0000-00-00 00:00:00 2022 0 Ljubljana 2022 Ljubljana XII, 65 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 624.131:656.1/.5(043.2) 150955 126039299 8675.pdf 8675.pdf 1 7F1C46FF928CC337455F4EBEEAB0900B 921977525dd1da482b6effebe93d17d05176b9e033f7fb80ec2056f271073dc5 330e836c-3654-11ed-92af-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=161485 Fakulteta za gradbeništvo in geodezijo 0 0 0