1、水利水电技术(中英文)第 54 卷 2023 年第 6 期Water Resources and Hydropower Engineering Vol.54 No.6潘婧,陈燕,唐伟,等.基于 InfoWorks ICM 的临安亚运场馆暴雨内涝模拟研究J.水利水电技术(中英文),2023,54(6):12-21.PAN Jing,CHEN Yan,TANG Wei,et al.InfoWorks ICM-based simulative study on rainstorm waterlogging for Asian Games venues in Linan DistrictJ.Water
2、 Resources and Hydropower Engineering,2023,54(6):12-21.基于 InfoWorks ICM 的临安亚运场馆暴雨内涝模拟研究潘 婧1,2,陈 燕1,2,唐 伟3,王锣洋1,2,王 品1,2,胡潭高1,2(1.杭州师范大学 遥感与地球科学研究院,浙江 杭州 311121;2.浙江省城市湿地与区域变化研究重点实验室,浙江 杭州 311121;3.浙江省测绘科学技术研究院,浙江 杭州 311100)收稿日期:2022-12-01;修回日期:2022-12-29;录用日期:2023-12-30;网络出版日期:2023-03-17基金项目:国家高分辨率对
3、地观测重大科技专项项目(5-Y30B01-9001-19/20-4);浙江省基础公益研究计划项目(LY19D010004)作者简介:潘 婧(2001),女,助理研究员,学士,主要从事土地利用变化和城市内涝相关研究。E-mail:panjing2001 通信作者:胡潭高(1983),男,教授,博士,主要从事土地利用变化和城市内涝相关研究。E-mail:hutangao Editorial Department of Water Resources and Hydropower Engineering.This is an open access article under the CC BY-N
4、C-ND license.摘 要:【目的】杭州亚运会举办期间正值汛期,亚运场馆及其周边区域内涝灾害风险显著增加,以水文水动力模型为支撑的暴雨内涝模型是预防、降低重点区域内涝灾害损失的重要手段。【方法】以临安区亚运场馆为例,运用 InfoWorks ICM 模型,构建核心区域的一维-二维暴雨内涝耦合模型。以2022 年 7 月 31 日、2022 年 9 月 13 日两场实测降雨对模型进行参数率定验证。在此基础上模拟不同设计降雨重现期下(10 a、20 a、50 a 和 100 a)的积水情景,分析核心区域的主要内涝点和成因,从而为预防城市内涝灾害提供决策依据。【结果】结果表明:模型的相对误差范
5、围为 11.11%17.65%,表明其具有一定的可靠性。在不同设计降雨重现期下,受地形与排水管径大小等因素的影响,九州街与秀泉路路段积涝情况均比较严重。在重现期大于 20 a 时,亚运场馆西侧道路上出现深度大于0.40 m 的积水,并随着重现期增大,积水面积也不断扩大;在降雨重现期为 100 a 的情况下,九州街与秀泉路路段积水最深达 58 cm,积水面积为 13.68 hm2。【结论】临近场馆道路的大面积积水对赛事的顺利举行将会带来一定挑战。建议增加周边商业地块与住宅区的绿地等透水面面积,并在积涝危险程度较大处设置排水泵。研究成果对解决城市内涝问题、制定相关策略具有参考价值。关键词:Info
6、Works ICM;暴雨内涝;亚运场馆;临安区;气候变化;降雨;内涝灾害损失;积涝风险DOI:10.13928/ki.wrahe.2023.06.002开放科学(资源服务)标志码(OSID):中图分类号:TV213.4文献标志码:A文章编号:1000-0860(2023)06-0012-10InfoWorks icm-based simulative study on rainstorm waterlogging for Asian Games venues in LinAn DistrictPAN Jing1,2,CHEN Yan1,2,TANG Wei3,WANG Luoyang 1,2,
7、WANG Pin 1,2,HU Tangao1,2(1.Institute of Remote Sensing and Earth Sciences,Hangzhou Normal University,Hangzhou 311121,Zhejiang,China;2.Zhejiang Provincial Key Laboratory of Urban Wetlands and Regional Change,Hangzhou 311121,Zhejiang,China;3.Zhejiang Institute of Surveying and Mapping Science and Tec
8、hnology,Hangzhou 311100,Zhejiang,China)21潘 婧,等/基于 InfoWorks ICM 的临安亚运场馆暴雨内涝模拟研究水利水电技术(中英文)第 54 卷 2023 年第 6 期Abstract:Objective The Hangzhou Asian Games is held just in a flood season,and then the risk of waterlogging disaster risk at Asian Games venues and their surrounding areas increase significan
9、tly,for which the hydrology-hydrodynamic model-based rainstorm waterlogging model is an important means to prevent and reduce the losses in the relevant key areas from waterlogging disaster.MethodsTaking the Asian Games venues in Linan District as the study case,a 1D2D waterlogging coupling model fo
10、r the core area is established with InfoWorks ICM model.The model parameters are calibrated and verified by the measured data of the rainfalls occurred on July 31,2022 and September 13,2022.On the basis of this,the water ponding scenarios under different design rainfall return periods(10a,20a,50a an
11、d100a)are simulated,and then the main water ponding points and their causations are analyzed as well,so as to provide the decision-making basis for preventing the urban waterlogging disaster therein.Results The result shows that the relative error range of the model is 11.11%17.65%,which indicates t
12、hat it has certain reliability.Under the conditions of different design rainfall return periods,both the water ponding situations in the areas of Jiuzhou Street and Xiuquan Road are relatively serious under the influences from the factors of topography and drain pipe diame-ter,etc.When the return pe
13、riod is greater than 20 years,there will be ponding with a depth of more than 0.40 m on the road on the west side of the Asian Games venue,and with the increase of the return period,the area of ponding will continue to expand.Under the condition of the rainfall return period of 100a,the maximum dept
14、h of water ponding is to be 58 cm with the area of 13.68 hm2 in Jiuzhou Street and Xiuquan Road.Conclusion The large area of ponding near the venue road will bring certain challenges to the smooth holding of the event.It is suggested to increase the area of the permeable surfaces such as green areas
15、 in the surrounding commercial and residential areas and arrange drain pumps at the places with greater waterlogging risk.Keywords:InfoWorks ICM;rainstorm waterlogging;Asian Games venues;Linan District;climate change;rainfall;loss of waterlogging disaster;waterlogging risk0 0 引引 言言 近年来,受全球气候变化影响,我国各
16、地的降水量、降水频度和降水强度发生了改变,极端降水事件逐年增加1。同时,快速城市化进程导致城市不透水面增加,加上人为改变原始水文条件,使得城市内涝灾害不断加剧2-3。作为现代化都市和 2022 年亚运会承办城市,杭州市深受城市内涝灾害的困扰,据杭州市应急管理局统计,2020 年梅汛期间杭州市总计 20.7 万人受灾,直接经济损失约 25.31 亿元4。2021 年 8 月,杭州市最大小时雨强达 40 mm5,杭州市内多处道路出现严重积水,极大影响了道路正常通行与人民生命财产安全。杭州亚运会将于 2023 年梅汛期间举办,有效的应对内涝风险,保障亚运会顺利举办,对于提升城市形象、确保人民生命财产安全具有重要意义。因此,构建亚运场馆及其周边地区的暴雨内涝监测预警模型,从而实现暴雨内涝风险的预测与有效治理,对于提升城市管理水平具有重要意义。目前,城市雨洪模型被广泛用于城市暴雨内涝模拟。国内主要的雨洪模型包括城市雨水管道计算模型(SSCM)6,城市雨水径流模型(CSYJM)7,平原城市雨洪模型8,分布式城市雨洪模型等9,这些模型大多缺乏良好的前、后处理程序,主要是基于某一特定区域应用研发,未进