China Safety Science Journal ›› 2017, Vol. 27 ›› Issue (2): 151-156.doi: 10.16265/j.cnki.issn1003-3033.2017.02.027

• Public Safety • Previous Articles     Next Articles

Research on risk acceptance criteria for construction of HLW geological disposal URL

TONG Yue1,2, HUANG Hongwei1,2, ZHANG Dongming1,2, CHEN Liang3, LI Yanjie1,2, ZHANG Kairui1,2   

  1. 1 Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai 200092, China
    2 Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China
    3 Beijing Research Institute of Uranium Geology, Beijing 100029, China
  • Received:2016-10-17 Revised:2016-12-29 Online:2017-02-28 Published:2020-11-22

Abstract: Risk acceptance criteria is the basis of risk management and decision making. However, the existing risk specifications and standards of China can't satisfy the construction of URL. The paper was aimed at establishing acceptance criteria for the construction phase of URL.Firstly, the experience and method of the existing risk acceptance criteria were considered. Then a guestionnaire survey was carried out into experts,belonging to the owners,universities, design, consulting and insurance units on the feature values of acceptance criteria. To improve the reliability, the quartile method was used to check the abnormal value of the survey data. At the same time, the confidence index, which reflects the confidence of judgment, was applied to calculating the weights of experts with the basic information on experts. Lastly, based on ALARP principle, the risk acceptance criteria were established. The tolerable and acceptable standards of the individual risk and social impact risk were given . The criteria can be quantized continuously and can satify the risk management during the construction phase of URL.

Key words: high level radioactive waste(HLW) disposal, underground research laboratory(URL), as low as reasonably practicable (ALARP) principle, confidence index, risk acceptance criteria

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