Sequential characteristics of safety hazards in hydropower project construction based on complex networks

doi:10.16265/j.cnki.issn1003-3033.2022.08.2315

Abstract

Abstract:

In order to improve safety hazards management in hydropower project construction, nonlinear sequential characteristics of the hazards were analyzed, and a complex network model of the time series was built based on visual graph algorithm. Then, 3 160 hazard data of a hydropower station from 2016 to 2020 were mined, and parameters of the network's degree, degree distribution, power law index, clustering coefficient, diameter, average path length, etc. were calculated to reveal temporal characteristics of the hazards in the project construction. The results show that the discovery timing of the hazards in this project indicates obvious phased, scale-free and small-world evolutionary characteristics. As long intervals during the hazards will significantly undermine robustness performance of management in the whole project construction, controlling the few key time nodes can reduce risks in hydropower projects. It provides a theoretical method for further mining the prediction of sequential characteristics of safety hazards in hydropower project construction.

Key words: complex network, hydropower project construction, safety hazards, time series, visibility graph algorithm

CHEN Shu, ZHU Liping, CHEN Yun, ZHENG Xiazhong, JI Qin. Sequential characteristics of safety hazards in hydropower project construction based on complex networks[J]. China Safety Science Journal, 2022, 32(8): 61-66.

Figures/Tables 7

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问题编码	隐患位置	隐患描述	发现日期
20010740	水垫塘	水垫塘排架无安全爬梯	2020-09-29
20010739	左岸2005 连接廊道	机组违规使用插线板	2020-09-29
︙	︙	︙	︙
2016032915657	2号导流洞进口	2号导流洞进口底板浇筑时黑龙滩浇筑队作业人员未系安全帽带	2016-03-29