基于城市雨洪模型的长治市某城区应急救援路径规划研究  

Research on emergency rescue path planning in an urban area of Changzhi City based on urban rainfall-flood model

作　　者：申腾飞 侯精明 李丙尧 王添[1] 孙学良 陈瑜 唐宇飞 SHEN Tengfei;HOU Jingming;LI Bingyao;WANG Tian;SUN Xueliang;CHEN Yu;TANG Yufei(State Key Laboratory of Ecological Hydrology in Northwest Arid Regions,Xi’an University of Science and Technology,Xi’an 710048,China;College of Civil Engineering,Xijing University,Xi’an 710123,China;CAUPD Beijing Planning&Design Consultants LTD,Beijing 100044,China;China Academy of Urban Planning and Design,Beijing 100044,China)

机构地区：[1]西安理工大学省部共建西北旱区生态水利国家重点实验室,陕西西安710048 [2]西京学院土木工程学院,陕西西安710123 [3]中规院(北京)规划设计有限公司,北京100044 [4]中国城市规划设计研究院,北京100044

出　　处：《自然灾害学报》2024年第3期67-78,共12页Journal of Natural Disasters

基　　金：国家自然科学基金项目(52079106);引汉济渭工程项目(2022JC-LHJJ-09);陕西省重点研发计划(2023GXLH-042)。

摘　　要：在洪水应急管理中,合理设计救援路线,有助于提高救援效率,减少灾害损失。在建立的内涝灾害救援路径规划框架中,采用高效高分辨率雨洪模型,模拟区域的内涝过程,基于内涝结果,采用原始法重构路网拓扑结构。考虑道路风险及水深对车速的影响,构建以时间为指标的路段权重矩阵,采用Floyd算法推求最短路径。另构建了以路径长度为指标的权重矩阵,作为对照。以长治市某城区为例,设置5种情景条件(无降雨、50 a、100 a、200 a、500 a),比较不同情景下的救援路线。结果表明:分别以通行时间、路径距离为指标构建路网权重进行计算,其结果有明显变化。500 a降雨条件下,以通行时间为指标构建的路网权重得到的规划路线,在通行距离上增加了12.43%,而在行驶时间上少了14.07%。In flood emergency management,the strategic design of rescue routes is essential for improving rescue efficiency and reducing disaster losses.Therefore,within the established framework for planning flood disaster rescue routes,an efficient and high-resolution rainfall-flood model is used to simulate the process of urban waterlogging.Based on the results of the simulation,the original method is applied to reconstruct the topological structure of road network.Additionally,factors like road risks and the influence of water depth on vehicle speed are taken into account,and a road segment weight matrix is established by using travel time as the criterion.The Floyd algorithm is used to compute the shortest paths.Furthermore,another weight matrix based on path length is constructed as a control for comparison.Using a specific urban area in Changzhi City as an example,five different scenarios are studied,including no rainfall,50-year rainfall,100-year rainfall,200-year rainfall,and 500-year rainfall.By comparing rescue routes under different scenarios,the results reveal significant variations.Under the 500-year rainfall scenario,the road network weights constructed by travel time result in a 12.43%increase in travel distance while reducing travel time by 14.07%.

关 键 词：城市雨洪模型 路网拓扑 路径规划 救援路线 长治市某城区 

分 类 号：TV212.53[水利工程—水文学及水资源] X43[环境科学与工程—灾害防治]