Construction layout of the underground nuclear power plant coupled-cavity group in the vertical direction of the mountain

An object of the present invention is to provide a construction layout of the coupled-cavity group of underground nuclear power plant in the longitudinal direction of the mountain. And A nuclear reactor plant cavity (1), and two coupling cavities, and two electrical plant cavity (2), and two pressure relief cavity (7), first main passage tunnel (8) If, comprising a second main passage tunnel (9), third main traffic tunnel (10). Three main traffic tunnel communicates with the ground surface. Reactor plant cavity (1), coupled cavity, electrical plant cavity (2), pressure relief cavity (7) forms a nuclear island plant cavity group. Upper skew back or upper end wall of the cavity of the nuclear island plant cavity groups, via the upper layer cavities support system, it communicates with the ground surface. Side wall lower side of each cavity of the nuclear island plant cavity groups, through the lower layer cavities support system, it communicates with three main traffic tunnel. According to this construction the layout, the total distance is short, high safety, construction easier, saves investment, while being highly modular, in the art of nuclear power engineering, can be widely applied. .FIELD 1