Naslov
Optimization of rock mass support systems during deep excavations

Autori
Arbanas, Željko ; Grošić, Mirko ; Udovič, Dalibor ; Jagodnik, Vedran

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

Izvornik
Proceedings of the regional symposium of the International Society for Rock Mechanics, Eurock 2009, Rock Engineering in Difficult Ground Conditions - Soft Rock and Karst / Vrkljan, Ivan - Leiden : CRC Press ; A.A. Balkema Publishers, 2009, 427-433

ISBN
978-0-415-80481-3

Skup
Regional symposium of the International Society for Rock Mechanics, Eurock 2009, Rock Engineering in Difficult Ground Conditions - Soft Rock and Karst

Mjesto i datum
Cavtat, Hrvatska; Dubrovnik, Hrvatska, 29.10.2009. - 31.10.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
rock mass; excavation; support; active design

Sažetak
During excavations in the rock mass for constructions of roads and buildings in urban areas, the only parameter that can be predicted is the excavation slope. In urban areas excavations sometimes have to be made vertically with demanding support systems, which require strict technical construction. The deform-ability and strength properties of the rock mass are determined from geotechnical investigation and the use of the rock mass classification system. It is then possible to make the geotechnical model and perform the stabil-ity and stress-strain analyses. It is first assumed that the rock mass slope is unsupported during excavation. If a low initial factor of safety is obtained, the stability analysis should include a support system. The interactive design is applied throughout construction of the support system and includes extensive monitoring. A re-design of the excavation and additional support measures are required when monitoring imply on significant deviations of defined conditions.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA