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CONFERENCE PROCEEDINGS INTERNATIONAL CONFERENCE
"CONTEMPORARY ACHIEVEMENTS IN CIVIL ENGINEERING 2015 "
FACULTY OF CIVIL ENGINEERING SUBOTICA , 2015.y., pp. 393-401


ANALYSIS OF EARTHQUAKE EFFECTS ON THE CIRCULAR TUNNEL TUBE IN LONGITUDINAL DIRECTION
 
DOI: 10.14415/konferencijaGFS 2015.049
UDC: 624.19:624.042.7
CC-BY-SA 4.0 license
Author : Lukić, Dragan; Petronijević, Predrag; Zlatanović, Elefterija
 
 Summary:
 The paper describes a 3D numerical model of structural response of a circular tunnel tube in a medium (soil/rock) in case of a seismic action in the direction of the longitudinal axis of the tunnel. The model simulates interaction of the structure and rock mass in seismic conditions. The analysis includes nonlinear effects of interaction of the tunnel structure – rock mass system. For illustration of a seismic behavior of the applied model, two cases were analyzed, using variation of four different seismograms. The first case presents a tunnel where unrestrained displacement of portal points in the direction of the tunnel axis is facilitated. In the second case, the model simulates a very long tunnel whose portal points are joined with elastic supports.
 
 Keywords:
 numerical model, dynamic response, tunnel structure, analysis in longitudinal direction