China Safety Science Journal ›› 2023, Vol. 33 ›› Issue (3): 103-110.doi: 10.16265/j.cnki.issn1003-3033.2023.03.0795

• Safety engineering technology • Previous Articles     Next Articles

Multi-evidence fusion comprehensive evaluation of importance of safety accident causation in hydropower project construction

ZHOU Shijie(), LIU Donghai**(), JIN Rui   

  1. State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300350, China
  • Received:2022-10-25 Revised:2023-01-11 Online:2023-03-28 Published:2023-11-28

Abstract:

In order to determine the main causes of construction safety accidents in hydroelectric projects, take targeted safety precautions to reduce potential safety hazards and reduce the probability of safety accidents, a multi-evidence fusion fuzzy comprehensive evaluation method for the importance of accident causes was proposed. A total of 306 typical accident cases were collected for cause analysis, and 23 accident cause indexes under fourrisk factors of human, material, management and environment were summarized to construct the evaluation index system of safety accident cause. The interval analytic hierarchy process (IAHP) and fuzzy set evaluation method were used to determine the weights of risk factors and cause indexes respectively, and then a multi-evidence comprehensive evaluation model based on expert group decision making and Dempster-Shafer (D-S) evidence fusion theory was established, and an example analysis was carried out. The results show that human factors and material factors are the main factors leading to accidents, the causes of accidents such as illegal operation, unsafe position, risk-taking psychology, no protective measures, and the use of unsafe measures account for a large weight, when taking safety prevention and control measures, the above factors should be considered.

Key words: hydropower engineering, construction safety, accident causes, importance, Dempster-Shafer(D-S) evidence fusion, comprehensive evaluation