NAPREZANJA PRI VIŠEFAZNOM ISKOPU TUNELA
Journal Title: UNKNOWN - Year 2003, Vol 15, Issue 1
Abstract
Predviđanje odziva stijenskog masiva prilikom proboja tunela složen je inženjerski problem. Pri projektiranju važno je ocjenjivanje uvjeta stabilnosti iskopa, te nakon usvajanja prikladnih metoda probijanja, usvajanje odgovarajućih mjera podgrađivanja u svrhu stabilizacije otvora.Nova austrijska tunelska metoda (NATM) je metoda iskopa prilagodljiva čestim promjenama geoloških i geotehničkih uvjeta na čelu iskopa. Osim iskopa cijelog profila, iskopi u slabim materijalima duž trase tunela uvjetuju tzv. razradu profila tj. primjenu višefaznog iskopa. U radu je dana usporedba stanja naprezanja i deformacija za punoprofilni iskop sa stanjem naprezanja i deformacija pri razradi profila tj. za početne faze višefaznih iskopa NATM.
Authors and Affiliations
Lidija Frgić Krešimir Tor Tomislav Hrestak
Keywords
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