Naslov
Construction System for Secondary Tunnel Lining

Autori
Planinc, Robert ; Tisovec, Ivica ; Bjegović, Dubravka ; Planinc, Marko ; Stipanović, Irina

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), stručni

Izvornik
Proceedings of International Tunnels Forum on New Technology in Tunnel Management Systems / Tunnel Management International, Chase, Rory - Kempston : Independent Technical Conferences, 2001, 31-36

Skup
International Tunnels Forum New Technology in Tunnel Management Systems

Mjesto i datum
Basel, Švicarska, 04.12.2001. - 06.12.2001

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
precast segments for secondary tunnel lining; scaffold; ventilation tubes; fire protection.

Sažetak
This paper describes the performance of multifunctional precast elements used as secondary tunnel lining. After primary tunnel lining is placed, the elements forming a self-supporting arch are installed by using a special symmetrical scaffold. This scaffold enables the handling and placement of precast elements, which also serve as a self-supporting formwork for filling fresh concrete into the space between the elements and the primary tunnel lining. These precast elements would play a multiple role in tunnel construction and performance. Their special composite structure makes them fire and water-resistant. Their prefabricated nature keeps construction costs at an acceptable level ; in addition better quality of concrete is achieved in controllable factory conditions. The scaffold specifically intended for such construction enables continuous traffic even during the reconstruction of a tunnel, but, of course, with reasonable speed and traffic flow restrictions.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA