An innovative methodology for establishing societal life risk criteria for dams: A case study to reservoir dam failure events in China

Wei Ge, Yupan Qin, Zongkun Li, Hexiang Zhang, Weixing Gao, Xinyan Guo, Ziyuan Song, Wei Li, Pieter van Gelder

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

Because of the uncertainty regarding the potential loss of life, it is difficult to use societal life risk criteria for dams established based on existing methods and the related research. Based on existing dam safety standards, dam safety conditions, and the opinions of the public on dam risks, an innovative methodology, i.e. P–P curve, was proposed to establish societal life risk criteria for dams. The annual probability of dam failure, population at risk, and dam height, which have the most significant and direct impacts on the potential loss of life, were selected as the basic indices. Taking China as an example, societal life risk criteria for the dams of five types of reservoirs were established; in these criteria, the heights of 30 m and 70 m were proposed as the bases for upgrading the risk criteria for the dams of small-type reservoirs, medium-type and large (2)-type reservoirs, respectively. The proposed methodology was designed to be more practical in determining the risk levels for dams because the values of the basic indices are considerably easier to determine than those of risk criteria based on the existing methods.

Original languageEnglish
Article number101663
JournalInternational Journal of Disaster Risk Reduction
Volume49
DOIs
Publication statusPublished - 2020

Keywords

  • Dam
  • Dam height
  • Failure probability
  • Population at risk
  • Potential loss of life
  • Societal life risk criteria

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