An instrument array will record the rock mass response during shaft sinking for an underground research laboratory in Eastern France in a deep argillite formation. This kind of geological formation is considered as a potential host rock for a radioactive waste repository. The proposed MODEX-REP project consists in: development of the constitutive models by analysing surface laboratory tests results; prediction of the rock mass response to shaft excavation; analysis of the results of in-situ measurements; comparison of the prediction with the measured rock mass response; and validation of the models. The relevance of the constitutive models for predicting rock mass hydromechanical behaviour will be evaluated through the comparison. The models validated by in-situ testing at natural scale will enhance public confidence in prediction capacity. Shaft excavation is not included financially in the proposed project.
Funding SchemeCSC - Cost-sharing contracts
59655 Villeneuve D'ascq