The in-situ test took place in the WT tunnel at the Grimsel Test Site.

Location of the WT tunnel in the Grimsel Test Site

 View the tunnel with the PSG experiment in our Virtual Tour of the GTS section

Planned borehole layout

The planned stages are shown in the computer animation below

PSG animation
Drilling of injection borehole.
Drilling of observation boreholes
Resin injection
Polymerisation of resin
Overcoring - removal of core.



Pore Space Geometry (PSG) Experiment