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To uncover the cross-system cascading propagation mechanism of urban waterlogging disaster chains and enhance blocking effectiveness, a coupled drainage-traffic network model was first constructed based on complex network theory, integrating high-precision topographic data, real-time traffic flow, and historical flooding records. A dynamic cascading-failure algorithm was then employed to quantify node centrality and link vulnerability, thereby dissecting the cross-system propagation path from "rainstorm-runoff-ponding-traffic paralysis". Finally, a three-level resilience blocking strategy—critical-node reinforcement, redundant-road-network optimization, and intelligent-response coordination—is proposed. The results show that pump-station expansion and redundant road design can effectively reduce waterlogged area and shorten traffic-interruption duration. And this enhances the system resilience and proactive immunity of critical urban infrastructures. It shifts the disaster-prevention paradigm from passive emergency response to active immunity.

, authors=Sicong ZHOU^{1, 2}, authorsList=Sicong ZHOU, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1282037436616250217, articleId=1282037435727057765, tenantId=1146029695717560320, journalId=1146031787341344770, language=CN, title=基于复杂网络的长沙市内涝灾害链传播阻断机制, columnId=1149735802885817075, journalTitle=中国安全科学学报, columnName=防灾减灾技术与工程, runingTitle=null, highlight=null, articleAbstract=

为揭示城市内涝灾害链的跨系统级联传播机制并提升阻断效能，首先，基于复杂网络理论构建排水系统与交通系统的耦合网络模型，整合高精度地形数据、实时交通流量及历史涝情数据；然后，采用动态级联失效算法，量化节点中心度与连接边脆弱性，解析“暴雨-径流-积水-交通瘫痪”的跨系统传播路径；最后，提出关键节点加固、冗余路网优化、智能响应协同的三级韧性阻断策略。结果表明：泵站扩容与路网冗余设计可以有效减少渍水面积、缩短交通中断时长，有助于提升城市关键基础设施的系统韧性与主动免疫能力，推动城市防灾体系从被动应急转向主动免疫。

, authors=周思聪高级政工师^{1, 2}, authorsList=周思聪高级政工师, authorCompany=null, correspAuthors=null, authorNote=, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=yjajwwtyN9c6LLnoVwoBeg==, magXml=FsogACGYaiOFv/SqxQsDIw==, pdfUrl=null, pdf=OAsGH65xpYYCio/70/pCqA==, pdfFileSize=4626982, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=ogx/NMBUbj4qIVo16yJOzQ==, mapNumber=null, fund=null)}, authors=[Author(id=1282037437140538225, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1282037435727057765, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=zhousicong@hunnu.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1282037437245395829, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1282037435727057765, authorId=1282037437140538225, language=EN, stringName=Sicong ZHOU, firstName=Sicong, middleName=null, lastName=ZHOU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=^{1, 2}, address=¹Office of International Exchange and Cooperation, Hunan Vocational Institute of Safety Technology, Changsha Hunan 410151, China
²Hunan Bureau of National Mine Safety Administration Safety Training Center, Changsha Hunan 410151, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1282037437308310391, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1282037435727057765, authorId=1282037437140538225, language=CN, stringName=周思聪高级政工师, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=^{1, 2}, address=¹湖南安全技术职业学院 对外交流合作处，湖南 长沙 410151
²国家矿山安全监察局湖南局安全培训中心，湖南 长沙 410151, bio={"content":"

周思聪（1984—），男，湖南岳阳人，硕士，高级政工师，湖南师范大学公共管理硕士研究生导师，主要从事应急管理、综合救援等方面的研究。E-mail: zhousicong@hunnu.edu.cn。

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周思聪（1984—），男，湖南岳阳人，硕士，高级政工师，湖南师范大学公共管理硕士研究生导师，主要从事应急管理、综合救援等方面的研究。E-mail: zhousicong@hunnu.edu.cn。

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