20.500.12556/DKUM-70812 Time-dependent behaviour of reinforced cuts in weathered flysch rock masses Časovno odvisno obnašanje ojačanih zasekov v preperelih flišnih kamnitih masah Knowledge of stress-strain rock mass behaviour is crucial for many engineering purposes. Rock mass deformations and their influences on construction are observed during construction and even during exploitation phases. These deformations in the exploitation phase are caused by the time-dependent behaviour of the rock mass. A flysch rock mass is categorised as a heterogenic weak rock that has been intensely subjected to weathering processes. Due to weathering processes, the flysch rock mass degrades from fresh rock to residual soil within only a few meters of the geological profile below the surface. Observations of reinforced cuts along the Adriatic motorway near the City of Rijeka, Croatia, were conducted over a time period of seven years of spanning construction and exploitation. Measured displacements reached significant magnitudes during the exploitation period as a consequence of the time-dependent behaviour of the rock mass. The paper presents findings related to flysch rock mass weathering profile and its characteristics based on detailed geotechnical investigations and monitoring results coupled with back analyses. It was found possible to detect the thickness of the flysch rock mass weathering profile by performing detailed geotechnical investigations. Recommendations for the strength, deformation, and creep properties of the weathering profile of a flysch rock mass are given. Poznavanje napetostno-deformacijskih odnosov kamnitih mas je ključnega pomena za mnoge inženirske probleme. Deformacije kamnitih mas in njihov vpliv na konstrukcijo opazujemo med gradnjo, redko pa med uporabo. Deformacije v fazi uporabe povzroča časovno odvisno obnašanje kamnitih mas. Fliš je opredeljen kot heterogena krhka kamnina, ki je zelo podvržena preperevanju in lahko razpade v zemljino do globine nekaj metrov pod površino. Ojačane zaseke vzdolž Jadranske magistrale v bližini Reke na Hrvaškem smo opazovali sedem let, tako v obdobju gradnje kot uporabe. Izmerjene deformacije so v času uporabe ceste dosegle pomembne velikosti kot posledica časovno odvisnega obnašanja kamnitih mas. V prispevku so predstavljeni rezultati obnašanja preperele flišne mase in njene lastnosti, ki temeljijo na podrobnem geotehničnem raziskovanju in spremljanju rezultatov ter na povratni analizi. Ugotovljeno je, da je globino preperevanja posameznih slojev flišnih mas mogoče ugotoviti s podrobnim geotehniškim raziskovanjem. Podane so priporočene vrednosti parametrov trdnosti, deformabilnosti in polzenja za profil preperevanja flišne kamnite mase. time-dependent behaviour weathering weak rock mass Burger model back analyses geotehnika kamnite mase krhke kamnite gmote fliš preperevanje deformacije časovno odvisno obnašanje preperevanje Burgerjev model povratna analiza true false true Angleški jezik Slovenski jezik Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru Znanstveno delo 2018-06-14 11:12:01 2018-06-14 11:13:04 2022-08-01 19:51:21 2019-07-11 18:20:39 2014 0 0 str. 5-17 št. 1 Letn. 11 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1854-0171 624.131.25:622.791 215987712 280987904 1854-0171 URN:SI:UM:DK:APGZBLMD Acta_geotechnica_Slovenica_2014_Grosic,_Arbanas_Time-dependent_behaviour_of_reinforced_cuts_in_weathered_flysch_rock_masses.pdf Acta_geotechnica_Slovenica_2014_Grosic,_Arbanas_Time-dependent_behaviour_of_reinforced_cuts_in_weathered_flysch_rock_masses.pdf 1 1FEB90A0B6375C46CDFF71BB29D6452D caf1e92c41d73e601a9bc8b171c012f9feb308bd8ad64841e6ccbc2750ecdf9c 0846b8a4-7c10-11eb-bb7a-00155d0001ca 20.500.12556/dkum/41a93dd4-b72f-4211-84d5-aef1cae7bbba https://dk.um.si/Dokument.php?lang=slv&id=125661 http://fgserver3.fg.um.si/journal-ags/2014-1/article-1.asp 1 https://dk.um.si/Dokument.php?lang=slv&id=125662 Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Acta geotechnica Slovenica 0 0 0