西宁市多尺度城市内涝风险评价方法  

Multi-scale urban waterlogging risk assessment method in Xining City

作　　者：田子阳 褚俊英[1] 林永寿 周祖昊[1] TIAN Ziyang;CHU Junying;LIN Yongshou;ZHOU Zuhao(State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin,China Institute of Water Resources and Hydropower,Beijing 100044,China;Department of Civil and Environmental Engineering,University of California,Davis,CA Davis 95616,United States of America;Construction Office of Comprehensive Treatment Project of Environmental in Xining,Qinghai using World Bank Loan,Xining 810001,China)

机构地区：[1]中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京100044 [2]加州大学戴维斯分校土木与环境工程系,加利福尼亚州戴维斯95616 [3]青海西宁环境综合治理利用世行贷款项目建设办公室,青海西宁810001

出　　处：《水资源保护》2022年第5期72-79,86,共9页Water Resources Protection

基　　金：国家重点研发计划(2016YFC0402405);青海西宁环境综合治理利用世界银行贷款项目(2016-Z-1)。

摘　　要：针对西宁市内涝风险评价的不同尺度评价需求,提出了西宁市多尺度城市内涝风险评价方法,涵盖西宁市规划管理的宏观尺度、街区预警应急的中观尺度和损失保险评估的微观尺度。采用熵权法进行宏观尺度评价,采用水文水动力模拟进行中观尺度评价,采用灾损曲线的方法进行微观尺度评价。结果表明:西宁市36个排水分区中25个位于综合中、高风险区;12个实测积水点中有75%位于综合高风险区,16.7%位于综合中风险区。According to the different scale evaluation needs of urban waterlogging risk evaluation in Xining City,a multi-scale urban waterlogging risk assessment method is proposed,which covers the macro scale of urban planning management,the meso scale of block early warning and emergency response and the micro scale of loss insurance assessment.Entropy weight method is used for macro scale assessment of urban waterlogging,hydrological and hydrodynamic simulation is used for meso scale assessment,and disaster damage curve method is used for micro scale assessment.The results show that 25 of the 36 drainage districts in Xining City are located in comprehensive high and medium risk areas.75%of the 12 measured ponding points are located in the comprehensive high-risk areas and 16.7%in the comprehensive medium risk areas.

关 键 词：内涝风险 多尺度 熵权 灾损曲线 西宁市 

分 类 号：TU992[建筑科学—市政工程]