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JOURNAL OF FACULTY OF CIVIL ENGINEERING
INTERNATIONAL CONFERENCE
CONTEMPORARY ACHIEVEMENTS IN CIVILENGINEERING 25, 2014.y., pp. 901-909


THE ANALYSIS OF THE BEHAVIOR OF ROCKBOLTS UNDER THE EARTHQUAKE
 
DOI: 10.14415/konferencijaGFS2014.121
UDC: 624.137.6:624.042.7
CC-BY-SA 4.0 license
Author : Prokić, Aleksandar; Mrđa, Nataša; Zlatanović, Elefterija
 
 Summary:
 This paper presents a numerical examination of the behaveor of rockbolts under the earthquake when tunnel construction is reinforced with point–anchored rockbolts. The solution is based on the assumption of a deep, circular tunnel surrounded with a homogeneous and isotropic rock. Plane strain condition and elastic response of rock are also assumed. A model of point–anchored rockbolt exposed to seismic activity is presented, and displacements of the rockbolt at the distal point of the rockbolt from the tunnel perimeter are analyzed. In the first case, displacements of rockbolts without contact of rocbolts body and rock are analyzed, and in the second case the contact is modeled to simulate friction.
 
 Keywords:
 Тunnel, expansion anchors, earthquake, elastic rock, numerical solution