Key technical support for responding to the embankment-break of Tuanzhou Township in Hunan Province
Peng Wenqi
Mu Jie
Yu Haijun
Zhang Nianqiang
Wu Binbin
Song Wenlong
Lyu Guomin
Chai Fuxin
Abstract：On July 5,2024,a embankment-break of Tuanzhou Township alongside the Dongting Lake,with a width rapidly expanding to 226 meters.Floodwater entered into the Tuanzhou Township and submerged an area about 47 km2 with a storage capacity of about 221 million m3.In order to block the breach of Tuanzhou Township Embankment,protect the Qiantuanjian Embankment,build the third line of defense and formulate drainage plans,the Research Center on Flood & Drought Disaster Prevention and Reduction of the Ministry of Water Resources proposed a technical support system for responding to the risks of embankment-break with complementation of remote sensing monitoring and hydrodynamic models,based on results of flood risk mapping,multi-source data of remote sensing monitoring,results of unmanned aerial vehicle monitoring,AI video flow measurement technology and digital twin technology,as well as working practice of disaster prevention for the Tuanzhou Township Embankment.A refined two-dimensional hydrodynamic model of Tuanzhou Township Embankment,Qianlianghu Embankment and Datongghu Embankment was constructed to analyze the flood inundation and drainage process.Relying on self-developed platform for remote-sensing emergency monitoring,the process of Tuanzhou Embankment breach was monitored.The research results provide a scientific basis for the emergency decision-making of the Ministry of Water Resources and Water Resources Department of Hunan Provincial.
Keywords：embankment breachflood routingremote sensing monitoringTuanzhou Embankmentdigital twin
Publication Date：2024-09-27
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 25-31 )