Closed enclosure for use in double door sealed transfer installation, for long-term storage of e.g. radioactive waste, has wall with lower deformation zone, and cylindrical or truncated portion arranged relative to central axis

摘要

The enclosure (1) has a peripheral wall (20) presenting a lower deformation zone (23) programmed under the effect of compression of the enclosure parallel to a central axis (A). A cylindrical or truncated portion (24) with a slope is arranged relative to the axis according to a preset angle. A truncated portion (25) with a slope is arranged relative to the axis according to another preset angle greater than the former angle. Another cylindrical or truncated portion (26) with a slope is relative to the axis according to a third preset angle inferior to the latter angle.