| 摘要 |
a) Nuclear power station with safety structure. b) Nuclear power station, characterised in that it includes means forming additional screens which are provided to be employed automatically after an emergency situation in the reactor room (13), these additional screens being composed of a set of underground cavities (12), each made above the underground room containing the reactor (14), each of the cavities having a floor structure which is capable of being broken and which supports a mass of material forming a screen, consisting of inert particles (28) inside each cavity (12) and an explosive charge (16) in the vicinity of each cavity, so that this mass falls under the effect of gravity from the cavities onto the underground reactor room (13). <IMAGE>
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