Prikaz i analiza tehnologije izvođenja radova na projektu druge cijevi tunela Učka

master's thesis

• Title (english): Depiction and analysis of construction technologies used to construct the second tube of the Učka tunel
• Author: Katarina Žipovski
• Mentor: Matej Mihić (mentor)
• Committee member: Lana Lovrenčić Butković (predsjednik povjerenstva)
• Committee member: Matej Mihić (član povjerenstva)
• Committee member: Ivica Završki (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Construction Management); Zagreb
• Defense date and country: 2022-09-29, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering; Construction Organization and Technology

Abstract

Tunel je uređen prokop cjevasta oblika kroz tlo ili stijenu. Tunel „Učka“ dio je autocesta Istarske županije koje su zbog svoga izgleda popularno nazvane „Istarski ipsilon“, a izgradnja druge cijevi tunela dio je projekta njihovog podizanja na puni profil. Cilj ovog rada je case-study metodom analizirati primijenjenu tehnologiju na projektu u tijeku njegove izvedbe. Nova cijev izvodi se Novom Austrijskom Tunelskom Metodom (NATM) koja se temelji na konceptu prema kojem tlo koje okružuje podzemni otvor postaje nosiva konstrukcijska komponenta. Podgradni sustav sastoji se od mlaznog betona, štapnih sidara, armiračkih mreža i tunelskih lukova. Analizirana je tehnologija glavnih građevinskih radova iskopa, ugradnje podgrada i izvedbe kolničke konstrukcije. Izračunati su učinci građevinske mehanizacije, količine te je proveden proračun trajanja aktivnosti. Zaključeno je kako je odabir prikladne građevinske mehanizacije uvjet za izvođenje kvalitetnih radova unutar vremenskog i troškovnog ograničenja projekta.

Abstract (english)

Tunnel is an tube-shaped excavation through the ground or rock. The "Učka" tunnel is part of the Istrian County highway, which is, due to its appearance, popularly called the "Istrian Y". The construction of the second tube of the tunnel is part of the project to raise the highway to its full profile. The aim of this paper is to analyse the applied technology on the project during its implementation using the case-study method. The new pipe is constructed using the New Austrian Tunneling Method (NATM), which is based on the concept that the soil surrounding the underground opening becomes a load-bearing structural component. The support system consists of shotcrete, rod anchors, reinforcing mesh and tunnel arches. The technology of only the main construction works; excavation, installation of support systems and pavement construction was analysed. The ability of construction mechanization and the duration of the activity was calculated. It was concluded that the appropriate choice of construction mechanization was the key for the performance of quality works within the time and cost limits of the project.

• Keywords: tunel; tehnologija; NATM; podgrada; mehanizacija.
• Keywords (english): tunnel; technology; NATM; support system; mechanization.
• Language: croatian
• URN:NBN: urn:nbn:hr:237:391397
• Study programme: Title: Civil Engineering; specializations in: Construction Management, Transportation Engineering, Geotechnical Engineering, Hydraulic Engineering, Structural Engineering, Construction Materials, Theory and Modeling of Structures; Course: Construction Management; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka građevinarstva (magistar/magistra inženjer/inženjerka građevinarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-01-30 10:56:45