城市地下空间洪灾多元动态耦合云评估研究

Urban underground space flood has distinctive characteristics different from surface flood and results in huge losses and casualties. However, current theoretical study of underground space flood is seriously lagged. The evaluation of underground flood has become an urgent problem to study and solve．In this study, the dynamic process of flooding intrusion from surface into the underground space by connecting passage is taken as the study guideline. Formation mechanism of urban underground space flood, the routing kinetics of flood, flood risk assessment and mitigation will be studied. Comprehensive means like model test, numerical simulation and statistical analysis are going to use in this study. Liquid-gas-human multi-field dynamic coupling theory will be developed, liquid-gas-human three-phases coupling underground space flood propagation numerical simulation model will be established. Also study the flood effect on bearing body of the underground space, and the damage mechanisms and evaluation methods. Research multi-mode collaborative optimization and counseling evacuation dynamics simulation model as the core of disaster reduction mode. Finally, flood routing assessment, environment and facilities loss assessment and pedestrain evacuation assessment results will be integreated, by coupling the cloud theory and the fuzzy comprehensive evaluation assessment model, underground space flood multivariate dynamic coupling cloud evaluation analysis method will be built. Also the evaluation results of underground space flood will be obtained. The outcomes of project will provide the foundation and support for urban underground space flood warning and risk assessment.

城市地下空间洪灾的灾害演变过程与地表洪灾相比具有不同的特点，灾害一旦发生会导致巨大损失和伤亡，但当前我国地下空间洪水灾害评估研究滞后，是当前亟需重视的研究课题。本项目以地下空间洪水入侵的动力学过程为研究主线，通过开展地下空间洪水演进动力学机理分析、环境设施损失评价方法及人员避洪减灾研究，结合模型试验、数值模拟和调研分析等综合手段，发展非完全开放地下空间内水流、气流、行人流多场动力耦合洪水传播理论，创建基于液-气-人三场耦合地下空间洪水传播数值模拟模型，研究地下空间内洪水对承灾体的作用及损失评价方法，研制以多模式协同和优化疏导人员避洪动力学仿真模型为核心的减灾模式。综合致灾过程评估、环境设施损失评估和人员避洪减灾评估结果，通过云评估理论融合模糊综合评价模型，建立城市地下空间洪灾多元动态耦合云评估方法，得出科学合理的地下空间洪灾评估结果，为城市地下空间防洪减灾提供基础理论和科学技术支撑。

城市地下空间洪灾的灾害演变过程与地表洪灾相比具有不同的特点，灾害一旦发生会导致巨大损失和伤亡，是当前亟需重视的研究课题。本项目以地下空间洪水入侵的动力学过程为研究主线，通过开展地下空间洪水演进动力学机理分析、环境设施损失评价方法及人员避洪减灾研究。综合致灾过程评估、环境设施损失评估和人员避洪减灾评估结果，通过云评估理论融合模糊综合评价模型，建立城市地下空间洪灾多元动态耦合云评估方法，以典型地铁站为研究实例进行了实例研究，为城市地下空间防洪减灾提供基础理论和科学技术支撑。项目取得的成果包括，发表学术论文19篇，其中被SCI收录3篇，被EI收录8篇，被SCI期刊发表1篇待收录，出版专著1部，获得国家授权专利3项，国家知识产权局软件著作权6项，参加国际学术会议交流5次，国内学术会议交流3次，受邀做会议学术报告1次，获得省部级奖励1次，厅局级奖励3次，优秀论文奖2次，优秀示范项目奖1次，编写了3份调研报告。