The cylindrical portion sorting - component and prefabricated of the lining of an alveole of underground storage of radioactive waste materials

摘要

The manufacture of the lining is simplified, particularly concerning the filling of the annular space between the two tubes. It is therefore constituted by an external tube (1), an inner tube (2) and the filling material (3) placed in the annular space initial. The casing is constituted by a plurality of prefabricated sections and arranged one after the other, one against the other. The external tube (1) has openings (7), so that the filling material (3) can enter into. The fitting of the sections can be done by means of radial surfaces in the form of a staircase. The fins may be added to the external surface of the internal tube (2) in order to facilitate the adhesion of the filling material (3) on the internal tube (2). Application to the underground storage of radioactive waste.