Terrace flatly-buried type underground nuclear power station

Abstract

The invention discloses a terrace flatly-buried type underground nuclear power station which comprises a nuclear island and a conventional island. Nuclear-related buildings of the nuclear island are arranged in a nuclear island cavern group of a mountain, the conventional island is arranged on a first conventional island area and a second conventional island area, the first conventional island area is located on a terrace platform on the upper portion of a side slope of the mountain, the second conventional island area is located on a ground platform on the outer side of the side slope, and the nuclear island cavern group is flatly buried in the side slope of the mountain relative to the second conventional island area. The terrace flatly-buried type underground nuclear power station is suitable for the terrain environment with the large platforms on the outer side and the upper portion of the side slope of the mountain or the terrain environment with the large platforms easily formed on the outer side and the upper portion of the side slope of the mountain in a hand excavation mode, and feasible general arrangement is provided for the underground nuclear power station. Compared with a ground nuclear power station, a main process system does not need to be greatly adjusted, and the technical development difficulty of the underground nuclear power station is lowered. Nuclear island plants are arranged in different underground caverns, and it can be guaranteed that the existing underground engineering technology meets the requirement that the nuclear-related buildings of the nuclear power station are arranged underground.

Description

technical field [0001] The invention relates to nuclear power technology, in particular to a terrace-buried underground nuclear power plant. Background technique [0002] At present, large-scale commercial nuclear power plants are arranged on the ground, and the power of a single reactor is generally above 600MW. The building mainly includes two parts: the nuclear island (including the reactor device and the primary circuit system) and the conventional island (including the turbogenerator system, cooling tower, etc. auxiliary equipment, etc.). The Chernobyl nuclear accident in the former Soviet Union, the Three Mile Island nuclear accident in the United States, and the Fukushima nuclear accident in Japan have shown that the existing ground nuclear power plants are not enough to effectively prevent and control nuclear leakage and ensure nuclear safety under extreme accident conditions. For this reason, some scholars at home and abroad have proposed to build nuclear-related b...

AI Technical Summary

Problems solved by technology

However, the excavation of underground caverns is generally selected in mountainous or hilly terrain environments, and the construction environment is quite different from that of ground nuclear power plants; and the nuclear islands of ground nuclear power plants and conventional islands are arranged in close proximity, with many buildings and large sizes. Space technology is difficult to accommodate all the buildings of the nuclear island in a single artificial underground cavern, and the overall layout of the ground nuclear power plant cannot meet the needs of the construction of an underground nuclear power plant

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