A Probability-Based Spatial Domain Description Method for Nuclide Near-Field and Far-Field Migration Assessment

A space domain and nuclide technology, applied in special data processing applications, instruments, design optimization/simulation, etc., can solve the problems that it is difficult to ensure that the packaging materials will not be corroded and the formation will not change.

Active Publication Date: 2021-08-10
SOUTHWEAT UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

The structure of the library includes natural barriers and engineering barriers to prevent the leakage of radionuclides in the waste from the packaging, but it is difficult to ensure that the packaging materials will not be corroded and the formation will not change for millions of years

Method used

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  • A Probability-Based Spatial Domain Description Method for Nuclide Near-Field and Far-Field Migration Assessment
  • A Probability-Based Spatial Domain Description Method for Nuclide Near-Field and Far-Field Migration Assessment
  • A Probability-Based Spatial Domain Description Method for Nuclide Near-Field and Far-Field Migration Assessment

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Embodiment

[0049] Such as figure 1 As shown, this embodiment is based on the spatial domain description method for nuclide near-field and far-field migration assessment based on probability, including:

[0050] Preliminary structure of the space domain; the space domain refers to all areas of nuclide migration concerned in the study of nuclide migration, which includes the near field and the far field, and the far field contains a variety of geological structures. Traverse means to cover all the areas in the space domain according to different geological structures, and to divide different geological structure types according to their actual depth, such as: porous medium, tight medium, fluid ;

[0051] Probability setting of spatial domain geological structure;

[0052] Stochastic generation of geological structures within the spatial domain.

[0053] The following are detailed descriptions:

[0054] Preliminary construction of space domain: use convex polyhedron (mainly hexahedron a...

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Abstract

The present invention relates to a space domain description method based on probability for assessment of nuclide near-field and far-field migration. The method includes: preliminary construction of space domain: using convex polyhedron as the basis to construct near-field and far-field of nuclide migration Space; Probability setting of geological structure in space domain: according to different geological structures, set relevant parameters for the spatial domains of different geological structures, among which the geological structures are divided into: porous medium, tight medium, fluid ; Stochastic generation of geological structures within the spatial domain.

Description

technical field [0001] The invention relates to a probability-based spatial domain description method for nuclide near-field and far-field migration assessment. Background technique [0002] Nuclear waste comes from nuclear power plants, national defense and military industries, nuclear medicine, etc., specifically referring to unstable elements containing alpha, beta and gamma radiation accompanied by useless materials generated by heat. Taking nuclear power plants as an example, the annual nuclear waste of a 1000 MW nuclear power plant contains 10 kg of neptunium-237 and 20 kg of technetium-99. Even if it is stored for 1 million years, it is still 30 million times higher than the allowable dose. These nuclear wastes need to consume a huge amount of natural resources to meet environmental requirements (if they are discharged directly, neptunium-237 needs to be diluted with 600 million tons of water, and technetium is diluted with 30 million tons of water). Once nuclear wa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F111/10G06F113/08
CPCG06F30/20G06F2111/10
Inventor 赵冬梅刘涛
Owner SOUTHWEAT UNIV OF SCI & TECH
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