THE IMPACT OF DISCONTINUITY ON THE STABILITY OF TUNNEL EXCAVATION IN KARST

Authors

  • Aleksandar Golijanin University of Banja Luka, Faculty of Mining, Prijedor, Republic of Srpska, B&H
  • Bojana Grujić University of Banja Luka, Faculty of Architecture, Civil Engineering and Geodesy, Department of Civil Engineering, Banja Luka, Republic of Srpska, B&H
  • Jovana Munjiza University of Banja Luka, Faculty of Mining, Prijedor, Republic of Srpska, B&H
  • Žarko Grujić University of Banja Luka, Faculty of Architecture, Civil Engineering and Geodesy, Department of Civil Engineering, Banja Luka, Republic of Srpska, B&H

DOI:

https://doi.org/10.7251/COMEN2501089G

Abstract

The position of primary and secondary (stratification surfaces and fractures) discontinuities in relation to the tunnel route significantly affects the stability of the tunnel excavation. Primary discontinuities represent interlayer surfaces or stratification surfaces that formed during the period of rock formation itself, while secondary discontinuities represent fractures, i.e., discontinuities that formed after the sedimentation process was completed and are associated with tectonic activities. In addition to existing discontinuities, groundwater can also affect the stability of the tunnel excavation.

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Published

2025-06-23

Issue

Vol. 16 No. 1 (2025): Contemporary Materials XVI‒1

Section

Articles