水利信息化Issue(5)：1-6,14,7.DOI:10.19364/j.1674-9405.2025.05.001
数字孪生城市防洪排涝"四预"平台建设与实践
Construction and application of digital twin urban flood control and drainage"Four Pre"platform
摘要
Abstract
To address the problems of insufficient monitoring,low forecasting accuracy,inefficient early warning,and inadequate emergency decision-making support in urban flood prevention,a digital twin"Four Pre"platform for flood control and drainage was developed and applied to the Nan'gang River Basin in Huangpu District,Guangzhou.Based on a high-density IoT sensing network covering rainfall,surface waterlogging,pipeline water level,river stage,and tidal level,the platform employed a suite of hydrological professional models,including inflow forecasting,one-dimensional and two-dimensional hydrodynamics,pipeline network,reservoir regulation,and waterlogging prediction models,together with accelerated computation methods.It enabled"minute-level"precise and rapid simulation of the entire flooding process,effectively supporting flood-risk early warning,scenario rehearsal,engineering scheduling,and emergency response optimization.The platform has been applied in 79 flood events.Results showed that,for 2-hour and 6-hour forecasts of river stage in the Nan'gang River Basin,81%and 75%of predictions,respectively,had errors within 20 cm,achieving grade-B accuracy.The platform significantly enhances flood-risk assessment and emergency response capacity in the Nan'gang River Basin and provides a useful reference for digital twin construction and urban waterlogging management in other small urban basins.关键词
防洪排涝/"四预"平台/数字孪生/智慧水利/洪涝模型Key words
flood control and drainage/"Four Pre"platform/digital twin/smart water conservancy/flood and waterlogging model分类
信息技术与安全科学引用本文复制引用
王汉岗,周姗,杨芳,张炜..数字孪生城市防洪排涝"四预"平台建设与实践[J].水利信息化,2025,(5):1-6,14,7.基金项目
国家重点研发计划项目(2021YFC3001000) （2021YFC3001000）
国家自然科学基金青年基金项目(52409052) （52409052）
