Nuclear island cavern group annular arrangement underground nuclear power plant

Abstract

The invention discloses a nuclear island cavern group annular arrangement underground nuclear power plant comprising a nuclear island producing steam with nuclear fission energy. The island is arranged in an underground cavern group. The underground cavern group comprises a reactor factory building cavern used for accommodating a reactor factory building and an auxiliary factory building cavern group, all of which are arranged underground. The auxiliary factory building cavern group is annularly arranged around the reactor factory building cavern. With the underground nuclear power plant nuclear island cavern annular arrangement form, existing underground cavern evacuation technologies can satisfy the construction requirements of the underground nuclear power plant. Being annularly arranged, the cavern group has an arrangement position substantially same with that of nuclear island factory buildings of a ground nuclear power plant. Therefore, less adjustment is required on an existing ground nuclear power plant technology system.

Description

technical field [0001] The invention relates to underground nuclear power technology, in particular to an underground nuclear power plant arranged in a ring with cavern groups on a nuclear island. Background technique [0002] 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 and research institutions at home and abroad have proposed to build large-scale commercial nuclear power plants underground and use the natural shielding effect of rock mass to effectively control nuclear pollution in extreme accidents and improve the security level of nuclear power plants. The United States, Japan, the former Soviet Union, Europe and other countries and regions h...

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Problems solved by technology

However, due to the limitation of underground cavern excavation technology, it is difficult to provide a large enough cavern to completely replicate the existing nuclear island on the ground.

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