GTS Phase V

Grimsel Phase V extended from 1997 to 2004. The focus was on investigating geological barrier effectiveness, demonstration of disposal concepts and site characterisation investigations. All the projects were also designed to contribute to the further development of and assessment of modelling capabilities.

Although Phase V was originally scheduled to finish in 2003, a decision to extend the GMT, HPF and FEBEX projects was made to allow longer monitoring phases of these Engineered Barrier Experiments. Phase V saw the construction of a new cavern at the GTS and experience gained in the use of radionuclide tracers was built on during the investigations of the geological barrier.

Phase V Experiments

CRR Experiment EFP experiment Febex Experiment FOM experiment

GAM experiment GMT Experiment HPF Experiment

GTS phase V can be grouped into three main areas of interest.

The Engineered Barrier System: FEBEX, GMT and FOM
Processes in the Geological Barrier: HPF, CRR and GAM
Site Characterisation and Modelling: EFP and CTN projects 

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.
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