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High-level radioactive waste geological disposal safety evaluation method

A technology for safety evaluation and high-level radioactive waste, applied in data processing applications, instruments, resources, etc., can solve the problems of long cycle, high safety level, and high toxicity

Pending Publication Date: 2017-07-25
CHINA INST FOR RADIATION PROTECTION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High-level radioactive waste has the characteristics of high radioactivity concentration, high calorific value, long half-life of nuclides, and high toxicity, which determine the high safety level and long cycle required by the disposal project.

Method used

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  • High-level radioactive waste geological disposal safety evaluation method
  • High-level radioactive waste geological disposal safety evaluation method
  • High-level radioactive waste geological disposal safety evaluation method

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Embodiment Construction

[0033] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0034] The present invention provides a complete set of methods and steps for the safety evaluation of geological disposal of high-level radioactive waste. The basic process is as follows: figure 1 shown, including the following steps:

[0035] (S1) Determine safety evaluation objectives, safety requirements and performance evaluation principles (see below for details).

[0036] (S2) Obtain information and describe the disposal system; the information includes: relevant information describing the design plan of the repository, the disposal object (waste body), the engineering barrier of the repository, and the characteristics of the disposal site.

[0037] (S3) Identify features, events and processes (FEPs) that can affect the long-term performance of the repository (see below for screening methodology).

[0038] (S4) Establish and test the conceptu...

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Abstract

The invention relates to a high-level radioactive waste geological disposal safety evaluation method. The method comprises steps that an evaluation target, safety requirements and performance evaluation rules are determined; data acquisition and disposal system description are carried out; characteristics, events and a process (FEPs) which possibly influence long-term performance are identified; a disposal system-related factor behavior concept model and a mathematic model are established and tested; related scene identification and description are carried out; an approach possibly making radionuclide flow from a disposal repository to human environments is confirmed; the established concept model and the established mathematic model are evaluated; evaluation reliability is analyzed; an evaluation result is compared with rules and safety demands to determine whether the safety target is satisfied. The method is advantaged in that a systematic method is firstly proposed, and safety evaluation work development is effectively guided.

Description

technical field [0001] The invention belongs to the technical field of radioactive waste disposal, and in particular relates to a safety evaluation method for geological disposal of high-level radioactive waste. Background technique [0002] Disposal of high-level radioactive waste is one of the most difficult issues in radioactive waste management in the world. The Law on the Prevention and Control of Radioactive Pollution and the Regulations on the Safety Management of Radioactive Waste have clearly stipulated that my country implement centralized deep geological disposal of high-level radioactive waste. "Nuclear Power Medium and Long-term Development Plan" and "Nuclear Safety and Radioactive Pollution Prevention and Control "Twelfth Five-Year" Plan and 2020 Long-term Goals" propose that my country will build an underground laboratory for geological disposal of high-level radioactive waste in 2020. [0003] Long-term safety is the basic starting point and the core issue of...

Claims

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Application Information

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IPC IPC(8): G06Q10/06
CPCG06Q10/06393
Inventor 李洪辉赵帅维贾梅兰刘建琴毛亮刘伟
Owner CHINA INST FOR RADIATION PROTECTION
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