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  • Full-scale engineered barriers experiment for a deep geological repository for high-level radioactive waste in crystalline host rock (FEBEX project)

Abstract

The FEBEX project has the multiple objectives of demonstrating the feasibility of manufacturing, handling and constructing the engineered barriers and developing codes for thermo-hydro-mechanical and thermo-hydro-geochemical performance assessment of a deep geological repository for high-level radioactive wastes. These objectives require integrated theoretical and experimental development work. The experimental work consists of three parts: an in situ test, a "mock-up" test, and a series of laboratory tests. The experiment is based on the Spanish reference concept for disposal of radioactive wastes in crystalline rock, in which the waste canisters are placed horizontally in drifts surrounded by high-density compacted bentonite blocks. In the two large-scale tests, the heat-generating wastes were simulated by means of electrical heaters; hydration was natural in the in situ test and controlled in the "mock-up" test. The large-scale tests, with their monitoring systems, have been in operation for more than two years. The demonstration has been achieved in the in situ test and there are great expectations that the numerical models sufficiently validated for the near-field performance assessment will be achieved.

Additional information

Authors: KICKMAIER W, NAGRA (CH);MARTNEZ M A, SGS Tecnos SA (ES);SAMPER J, ULC (ES);ALONSO E, UPC-DIT (ES);ELORZA F J, UPM (ES);HUERTAS F, Enresa (ES);FUENTES-CANTILLANA J L, Aitemin (ES);JULLIEN F, Andra (FR);RIVAS P, Ciemat (ES);LINARES J, CSIC-ZaidÝn (ES);FARIÐA P, DM Iberia SA (ES);GHOREYCHI M, G.3S (FR);JOCKWER N, GRS (DE)
Bibliographic Reference: EUR 19147 EN (2000) 362 pp., EUR 57.50
Availability: Available from EUR-OP sales agents
ISBN: ISBN 92-828-9285-9
Record Number: 200012060 / Last updated on: 2000-06-16
Category: PUBLICATION
Original language: en
Available languages: en