Industrial paper - Michael Jobmann, Marc Voet, Stief Goetschalckx, Johan Vlekken
Fiber optic deformation and temperature measurement system for application at underground radioactive waste repositories
Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005)
Short description
The disposal of high radioactive waste in underground repository sites is a complex and complicated topic due to the strong heat generation. At the Mont Terri URL (Underground Research Laboratory), which is located in a potential clay host rock in Switzerland, a special heater test is currently performed to investigate the heat impact on the clay behavior. A fiber optic measurement system has been developed in order to measure the temperature evolution around the heat sources that have a maximum temperature of 100°C as well as the induced rock deformation due to the thermal expansion of the clay. The system as well as some first results will be described.