Patent Number: 042971675
Section: claims

1. Nuclear reactor installation having a concrete cell disposed beneath the earth and having a hill of fill-earth directly covering the top of the concrete cell for enclosing activity-carrying components comprising at least one additional self-enclosed concrete cell disposed in the earth and being isolated and separated from the first-mentioned concrete cell by a given distance forming a space between said cells, said additional concrete cell having at most one-fortieth the volume of the first-mentioned concrete cell and being at least predominantly of shell-like construction, and including equipment of use for the nuclear reactor installation received in said additional concrete cell, said additional concrete cell being connected in a line extending from the first-mentioned concrete cell and out of the hill through which energy is removed from the hill, and including valve means disposed in said additional concrete cell for closing off said energy removal line. 2. Nuclear reactor installation according to claim 1 wherein the first-mentioned concrete cell is spaced from and surrounds a tight containment for enclosing activity-carrying components and defines therewith an annular space, said line extending from said containment, and including, in addition to said valve means in said additional concrete cell, further means in at least one of said containment and said annular space for closing off said line. 3. Nuclear reactor installation according to claim 1 wherein said additional concrete cell has an outlet extending into the earth of the hill, said outlet having a cross section of at least 1 m.sup.2. 4. Nuclear reactor installation having a concrete cell disposed beneath the earth and having a hill of fill-earth directly covering the top of the concrete cell for enclosing activity-carrying components comprising at least one additional self-enclosed concrete cell disposed in the earth and being isolated and separated from the first-mentioned concrete cell by a given distance forming a space between said cells, said additional concrete cell having at most one-fortieth the volume of the first-mentioned concrete cell and being at least predominantly of shell-like construction, and including equipment of use for the nuclear reactor installation received in said additional concrete cell, said first-mentioned cell being centrally located, and including a plurality of said additional concrete cells spatially distributed around said central concrete cell, said additional concrete cells being connected in respective lines extending from the first-mentioned concrete cell and out of the hill through which energy is removed from the hill, and including valve means respectively disposed in said additional concrete cells for closing off the respective energy removal lines. 5. Nuclear reactor installation according to claim 1 wherein said additional concrete cell is connected in a line extending to said first-mentioned concrete cell for removing energy from the hill, said line extending through movably sealed pipes. 6. Nuclear reactor installation having a concrete cell disposed beneath the earth and having a hill of fill-earth directly covering the top of the concrete cell for enclosing activity-carrying components comprising at least one additional self-enclosed concrete cell disposed in the earth and being isolated and separated from the first-mentioned concrete cell by a given distance forming a space between said cells, said additional concrete cell having at most one-fortieth the volume of the first-mentioned concrete cell and being at least predominantly of shell-like construction, and including equipment of use for the nuclear reactor installation received in said additional concrete cell, said additional concrete cell being connected in a line extending from said first-mentioned concrete cell and out of the hill for removing energy from the hill, said line extending through movably sealed pipes, said pipes being of pressure-tight construction and being floatingly disposed in the earth, said pipes having mutually connecting locations at which they are provided with elastic joint connectors. 7. Nuclear reactor installation according to claim 5 wherein said pipes and connecting openings thereof with said first-mentioned and said additional concrete cells are disposed above maximal groundwater level. 8. Nuclear reactor installation according to claim 1 wherein said additional concrete cell is inaccessible from said first-mentioned concrete cell and is accessible only from outside the hill. 9. Nuclear reactor installation according to claim 1 including a well extending from said additional concrete cell into groundwater in the earth. 10. Nuclear reactor installation according to claim 4 including a plurality of redundant, spatially separated emergency cooling devices mounted in said additional concrete cells and associated with said lines, respectively, said lines extending from said centrally located concrete cell. 11. Nuclear reactor installation according to claim 1 including impermeable partitions disposed in the hill for separating regions of varying activity in case of a disturbance, said additional concrete cell being disposed in a region of minimal activity separated by said partitions. 12. Nuclear reactor installation according to claim 11 wherein said partitions are formed of clay. 13. Nuclear reactor installation according to claim 4 including impermeable partitions disposed in the hill for separating regions of varying activity in case of a disturbance, said additional concrete cells being disposed in regions of minimal activity separated by said partitions, said lines extending through recesses formed in said partitions, said recesses being considerably smaller than corresponding dimensions of said additional concrete cells. 14. Nuclear reactor installation according to claim 13 wherein said partitions cover connections to said additional concrete cells so as to effect an additional sealing action. 15. Nuclear reactor installation according to claim 1 including a conical attachment location in said additional concrete cell for a valve mounted thereat, said valve being in at least one of a live steam and a feedwater line for closing said line. 16. Nuclear reactor installation having a concrete cell disposed beneath the earth and having a hill of fill-earth directly covering the top of the concrete cell for enclosing activity-carrying components comprising at least one additional self-enclosed concrete cell disposed in the earth and being isolated and separated from the first-mentioned concrete cell by a given distance forming a space between said cells, said additional concrete cell having at most one-fortieth the volume of the first-mentioned concrete cell and being at least predominantly of shell-like construction, and including equipment of use for the nuclear reactor installation received in said additional concrete cell and a conical attachment located in said additional concrete cell for a valve mounted thereat, said valve being in at least one of a live steam and a feedwater line for closing said line, said line extending to said first-mentioned concrete cell and being formed as a double-wall pipe. 17. Nuclear reactor installation according to claim 1 including a discharge line extending from said additional concrete cell into the earth of the hill, unilaterally acting closing means disposed within said additional concrete cell for closing said discharge line. 18. Nuclear reactor installation having a concrete cell disposed beneath the earth and having a hill of fill-earth directly covering the top of the concrete cell for enclosing activity-carrying components comprising at least one additional self-enclosed concrete cell disposed in the earth and being isolated and separated from the first-mentioned concrete cell by a given distance forming a space between said cells, said additional concrete cell having at most one-fortieth the volume of the first-mentioned concrete cell and being at least predominantly of shell-like construction, and including equipment of use for the nuclear reactor installation received in said additional concrete cell and a discharge line extending from said additional concrete cell into the earth of the hill, unilaterally acting closing means disposed within said additional concrete cell for closing said discharge line, said discharge line terminating in a gravel pile extending into the interior of the hill. 19. Nuclear reactor installation having a concrete cell disposed beneath the earth and having a hill of fill-earth directly covering the top of the concrete cell for enclosing activity-carrying components comprising at least one additional self-enclosed concrete cell disposed in the earth and being isolated and separated from the first-mentioned concrete cell by a given distance forming a space between said cells, said additional concrete cell having at most one-fortieth the volume of the first-mentioned concrete cell and being at least predominantly of shell-like construction, and including equipment of use for the nuclear reactor installation received in said additional concrete cell and a discharge line extending from said additional concrete cell into the earth of the hill, unilaterally acting closing means disposed within said additional concrete cell for closing said discharge line, said discharge line terminating in a pipe extending into the interior of the hill. 20. Nuclear reactor installation having a concrete cell disposed beneath the earth and having a hill of fill-earth directly covering the top of the concrete cell for enclosing activity-carrying components comprising at least one additional self-enclosed concrete cell disposed in the earth and being isolated and separated from the first-mentioned concrete cell by a given distance forming a space between said cells, said additional concrete cell having at most one-fortieth the volume of the first-mentioned concrete cell and being at least predominantly of shell-like construction, and including equipment of use for the nuclear reactor installation received in said additional concrete cell and a discharge line extending from said additional concrete cell into the earth of the hill, unilaterally acting closing means disposed within said additional concrete cell for closing said discharge line, said discharge line being connected to a secondary safety valve. 21. Nuclear reactor installation according to claim 1 including a tight cover layer covering the earth of the hill, and including a closable outlet line extending from the earth of the hill through said tight cover layer to the outside thereof. 22. Nuclear reactor installation according to claim 4 including pressure-free access means for connecting said additional concrete cells. 23. Nuclear reactor installation according to claim 4 including pressure-tightly closed sluice passages for connecting said additional concrete cells. 24. Nuclear reactor installation according to claim 4 including mechanically sturdy baffle plate means for preventing penetration of solids into said additional concrete cells and said lines respectively connected thereto. 25. Nuclear reactor installation according to claim 1 wherein said additional concrete cell is covered by substantially as much of a covering of the hill as is the first-mentioned concrete cell.