Architecture and management of a geological repository - Andra

Deconstruction work is complete when the radiological protection wall consisting of concrete blocksis reached.Figure 10.4.7 describes the deconstruction process. It takes approximately the same amount of time toclear the seal and recondition the access drift as to build the drift.Figure 10.4.7Seal deconstruction processRe-equipping the cell head section (access drift)Once the access drift is cleared, the cell head section may be re-equipped for the purpose ofreconstructing the radiation chamber (Figure 10.4.8). The equipment is similar to the equipmentinitially used to install the packages. First, the shielding doors are re-installed sheltered by the concreteblock radiological protection wall. Secondly, the other chamber equipment items are re-installed(moving floor equipped with a rotating table and port door) (see section 9.3).Figure 10.4.8Reconstructed cell BDOSSIER 2005 ARGILE -ARCHITECTURE AND MANAGEMENT OF A GEOLOGICAL DISPOSAL SYSTEM424/495