ANALIZA OPTEREĆENJA KOD GRAĐENjA TUNELA SISTEMOM CEVNOG KIŠOBRANA

Abstract

With the intensive construction of the highways, intensive tunnelling works takes place. Contemporary methods of construction are applied. One of these methods is the application of the pipe umbrella system as an excavation support. This primary support system is most commonly used in weak rock masses. Considering this type of supporting system, a special problem is the stability calculation and analysis of loading. In this paper, the individual procedures to be used for analysis of the load when calculating the bearing capacity of the pipe umbrella are reviewed, based on the most recent researches conducted in this field. There is also one example of a load calculation.