Fig. 9From: Hydro-mechanical evolution of the EDZ as transport path for radionuclides and gas: insights from the Mont Terri rock laboratory (Switzerland)Long-term changes in EDZ transmissivity in an open tunnel section at the Mont Terri rock laboratory: a sketch of the experimental set-up and b long-term monitoring of EDZ transmissivity. Initially, the EDZ was saturated for a period of 800 days (blue dots) and EDZ transmissivity was monitored periodically. Afterwards, a load plate inducing a radial stress between 1 and 5 MPa was installed and the transmissivity measurements were repeated (EU Selfrac Project; Nagra 2002)Back to article page