极端暴雨导致的地铁浸水风险模拟预测研究
结题报告
批准号:
42007416
项目类别:
青年科学基金项目
资助金额:
24.0 万元
负责人:
吕海敏
学科分类:
区域环境质量与安全
结题年份:
2023
批准年份:
2020
项目状态:
已结题
项目参与者:
吕海敏
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中文摘要
全球气候变暖引起的极端暴雨造成了严重的城市洪涝灾害。城市洪涝不仅淹没地表道路与建筑,而且导致地铁等地下空间重大基础设施发生雨水倒灌的浸水灾害。城市地铁浸水灾害造成人民生命财产的巨大损失。本研究针对极端暴雨导致的地铁浸水灾害问题,采用理论分析、模型预测、综合评估和现场实测等手段,拟解决如下关键科学问题:①探明降雨过程城市大面积不同坡度地表水流扩散分布机制,提出考虑建筑物阻挡效应的城市大面积地表水流扩散模拟预测模型;②建立地铁浸水仿真模型,模拟预测不同暴雨情景地铁车站周边积水分布范围、深度,探明车站发生浸水时积水消散时间,站内积水深度、范围及其对人员流动性的影响。研究成果预期可以突破现有暴雨内涝模型仅能用于模拟计算不考虑建筑物阻挡的小范围浸水风险的限制;并在此基础上另辟新径,提出地铁浸水风险模拟预测方法,为城市地铁等重大基础设施的安全运营与防灾减灾提供科学依据与理论支撑。
英文摘要
Global climate change induced extreme rainstorm, which caused urban flooding hazards. Flooding hazards not only submerged roads and buildings on surface, but also inundated underground infrastructures, e.g. urban subway. Frequent inundation events in urban subway caused huge losses of people’s lives and public properties. This research proposal focused on the inundation hazards in urban subway induced by extreme rainstorm. Theoretical analysis, modelling prediction, comprehensive assessment and field motoring will be employed to solve following scientific problems: (i) to reveal the mechanisms of the rainwater flowing on regional ground surface, and propose a rainwater spreading model considering the blocking effects from buildings; (ii) to establish a inundation model to predict the inundated range and depth around a subway station in different rainfall intensities, and to investigate the effects of inundiction range, depth and dissipation time on people mobilities in the inundated subway station. This study is expect to break through the limitation that the existing models can only be used to simulate the inundation risk in a small area without building blocking, and propose a new method to simulate and predict inundation risk in urban subway. It will provide scientific basis and theoretical support for protecting the urban subway from inundation, and managing the safe operation of urban subway.
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DOI:10.1007/s44268-023-00020-4
发表时间:2023-11
期刊:Smart Construction and Sustainable Cities
影响因子:--
作者:He-Ting Xiang;Haifang Lyu
通讯作者:He-Ting Xiang;Haifang Lyu
DOI:10.1016/j.scs.2023.104427
发表时间:2023-01
期刊:Sustainable Cities and Society
影响因子:11.7
作者:Haifang Lyu;Z. Yin
通讯作者:Haifang Lyu;Z. Yin
DOI:10.1016/j.scs.2023.104744
发表时间:2023-10
期刊:Sustainable Cities and Society
影响因子:11.7
作者:Haifang Lyu;Z. Yin
通讯作者:Haifang Lyu;Z. Yin
DOI:10.1016/j.eiar.2023.107154
发表时间:2023-07
期刊:Environmental Impact Assessment Review
影响因子:7.9
作者:Haifang Lyu;Z. Yin;Annan Zhou;Shui-Long Shen
通讯作者:Haifang Lyu;Z. Yin;Annan Zhou;Shui-Long Shen
DOI:10.1016/j.tust.2022.104428
发表时间:2022-02-18
期刊:TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
影响因子:6.9
作者:Lyu, Hai-Min;Shen, Shui-Long;Yin, Zhen-Yu
通讯作者:Yin, Zhen-Yu
国内基金
海外基金