CRIEPI’s Fractured Rock Studies - Schedule

The project is organised in yearly successive project phases. Each phase has been contracted and executed separately. Nagra concludes each phase with a progress report in which the on-site activities and results of the laboratory tests are summarised. 

Project phase

Tasks

I

2007/2008

  • Geological mapping and site selection
  • Drilling of four boreholes and installation of hydraulic monitoring systems
  • Geologic and structural characterisation, preliminary structural model
  • Thin section analysis of core samples for mineralogical characterisation
  • Hydrogeologic characterisation of fractures with monopole hydraulic testing

II

2008/2009

  • Drilling of one borehole and installation of hydraulic monitoring systems
  • Hydrogeologic and structural characterisation and update of the structural model
  • Analysis of groundwater chemistry
  • Support of CRIEPI’s demonstration experiments

III

2009/2010

  • Drilling of two boreholes and installation of hydraulic monitoring systems
  • Hydrogeologic and structural characterisation and update of the structural model
  • Support of CRIEPI’s demonstration experiments and characterisation of target fracture zone I

IV

2010/2011

  • Support of CRIEPI’s demonstration experiments and characterisation of target fracture zone II

V

2011/2012

  • Excavation of stabilised target fracture
  • Laboratory analysis of fracture aperture

 

CRIEPI’s Fractured Rock Studies - C-FRS

The GTS underground facilities are also available to interested 3rd parties for underground testing and research. The GTS offers cost-effective access to a fully developed, well characterised underground research facility with round the year logistical support - please contact Dr. Ingo Blechschmidt, Head of the Grimsel Test Site, for further details.