Geomechanical characterization, 3-D optical monitoring and numerical modeling in Kirkgecit-1 tunnel, Turkey

Aydin A. , Ozbek A., ACAR A. N.

ENGINEERING GEOLOGY, cilt.181, ss.38-47, 2014 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 181
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.enggeo.2014.08.010
  • Sayfa Sayıları: ss.38-47


The geomechanical characterization of a twin-tube tunnel during exploration and excavation stages is presented and used as a base (a) to interpret the monitored long-term displacements, (b) to numerically investigate if the displacement pattern at a given section could be predicted using an equivalent continuum model and (c) to assess adequacy of the NATM recommended excavation method and support systems. The pre-excavation rock mass classification by RMR and Q systems utilizing logs of two exploration boreholes lead to reasonably similar predictions of the as-built rock mass quality.