灾害学2024，Vol.39Issue(4)：33-39,7.DOI:10.3969/j.issn.1000-811X.2024.04.005
边攻击策略下自建房火灾风险网络中边重要性及风险度研究
Research on the Importance and Risk Degree of Edges in Self-build Housing Fire Risk Network under Edge Attack Strategy
摘要
Abstract
In order to reduce the occurrence of self-build housing fires in China,the accident cause"2-4"model(24Model)is used to analyze self-build housing fire accident cases,and 48 risk factors and events,as well as 128 risk transmission relationships,are encoded.A topology structure model of self-build housing fire risk network is constructed by using complex network theory,and the weight and betweenness characteristics of network edges are analyzed.Through simulation analysis of unilateral attack strategies and cumulative edge attack strategies,the changes in three network vulnerability evaluation indicators,namely the relative size of the maximum strongly connected subgraph,the relative size of the maximum weakly connected subgraph,and network efficiency,are obtained under different edge at-tack strategies.The vulnerability of the network is analyzed,and key links are obtained.An edge risk assessment model is introduced,the edge risk is analyzed,and chain breaking measures are proposed for the top 6 edges of risk.The re-sults show that under the unilateral attack strategy,the removal of edge with"lack of fire safety knowledge leading to weak fire safety awareness"and edge with"owner failure to implement fire safety main responsibility leading to failure to develop fire safety management system"can significantly reduce network connectivity and global network efficiency.When using the intentional attack(edge betweenness)strategy in the cumulative edge attack strategy,the network has high vulnerability,and the edges with higher edge betweenness ranking are more important and are key links in the net-work.It is possible to guide the fire safety management of self-build housing from different aspects based on the edge be-tweenness and the edge risk degree,providing reference for the fire safety management of self-build housing.关键词
自建房火灾/复杂网络/边攻击/关键链路/脆弱性/风险度Key words
self-build housing fire/complex network/edge attack/key link/vulnerability/risk degree分类
资源环境引用本文复制引用
邢艳冬,孟文静,周建亮,张明星,刘亚楠..边攻击策略下自建房火灾风险网络中边重要性及风险度研究[J].灾害学,2024,39(4):33-39,7.基金项目
国家自然科学基金面上项目"基于用户画像的建筑工人差异化不安全行为智能态势感知与个性化矫正研究"(72171224) （72171224）
安徽省检察理论研究课题(WJ202317) （WJ202317）
