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Geotechnical investigations of Işikli Tunnel alternative alignments, Turkey

  • Özgüler E. 
  • Ertunc A. 
  • Taner O. 
Article

Summary

The regional geology of the alternative tunnel alignments of Işikli Tunnel and its decisive influence on alignment of different alternative waterways is presented. A solution with optimum use and possible most favorable tunneling conditions were established. A procedure including rock mass classification and subsequent study of alternatives was used. Results are given for the NGI (Q), CSIR (RMR) and RSR systems for rock units as well as the signification and support recommendations for the encountered rock types.

Keywords

Rock Unit Longitudinal Profile Weak Rock North Anatolian Fault Tunnel Excavation 

Étude géotechnique des différents tracés possibles pour le Tunnel d'Işkli, Turquie

Résumé

L'article présente la géologie régionale du Tunnel d'Işikli, en Turquie, et son influence sur les tracés possibles. On a mis au point une solution combinant une utilisation optimale et des conditions de foration des tunnels les plus favorables possibles. La méthode utilisée inclut une classification des massifs rocheux puis une étude des variantes. Les résultats sont présentés dans le système NGI (Q), CSIR (RMR) et RSR pour des ensembles rocheux et complétés par des recommandations pour chaque type de roche traversée.

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References

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Copyright information

© International Association of Engineering Geology 1996

Authors and Affiliations

  • Özgüler E. 
    • 1
  • Ertunc A. 
    • 2
  • Taner O. 
    • 3
  1. 1.General Directorate of State Hydraulic WorksAnkaraTurkey
  2. 2.Faculty of EngineeringUniversity of ÇukurovaAdanaTurkey
  3. 3.AnkaraTurkey

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