EURAD-2 webinar – Domain Insight 4.2.1 on perturbations

The host rock is the natural barrier that hosts the underground structure of the geological disposal facility (GDF). It  has a crucial contribution in either the isolation of the waste (crystalline rock) or the containment of radionuclides in the waste (clay and salt rocks). The host rock can be perturbed by the chemical and physical interactions between barriers in the post-closure evolution of a disposal system with natural and engineered barriers, geomorphological processes induced by climate change and tectonic activity. Perturbations to the host rock are also made during construction, operation and closure of the GDF. The overall goal of this Perturbations domain is to characterize the potential impact of disposal facility construction, operation and closure on the natural geological barrier as extracted from the EURAD Roadmap goals breakdown structure (GBS). This is supplemented by typical activities, according to phase of implementation, needed to achieve this characterization of perturbations. Activities are generic and are common to most geological disposal programmes.

Speaker: Erika Neeft (COVRA, The Netherlands)