MoDeRn - A Case Study -

In this presentation, generic disposal concept in rock salt (Germany) and clay (France) are used as an example to discuss the design of a repository monitoring system. The approach is based on a generic structured approach to monitoring – the MoDeRn Monitoring Workflow. The requirements were identified through consideration of the national context, including regulatory guidelines, host rock properties and waste to be disposed of. The safety concept identified the key safety components, each of them having specific associated safety functions. The safety functions can be related to the list of processes related to the future repository evolution. All processes that potentially can affect the safety functions have been identified. Next, the parameters that would be affected by the individual processes were determined, leading to a preliminary list of parameters to be monitored. By evaluating available techniques and monitoring equipment, this preliminary list was investigated with respect to its technical feasibility at the intended locations. Prior to final system selection, potential impacts of the monitoring system on safety or other measurements are evaluated. Considerations on the application of wireless data transmission systems and techniques for autonomous, long-term power supply were given.