Dambreak simulation at Thuan Ninh Reservoir, Binhdinh, Vietnam

Abstract

With more than 160 reservoirs, Binhdinh is considered as the province having the most reservoirs over the country. This system have contributed importantly for provincial socio economic development. Therefore, the reservoirs in Binhdinh comprehend many potential risks due to their ages, noticeably the Thuan Ninh reservoir (Vhi= 32.26 106m3) which was constructed for 1970s. In order to help the local authority to respond actively with urgent incident, the study is to simulate dambreak incident for Thuan Ninh reservoir. The study is realizes relied on MIKE FLOOD model. The modelling scenario is supposed following the standard of TCKT 03:2015/TCTL. The simulation demonstrates that the Thuan Ninh dambreak incident might affect 33.35 km2 at downstream area. The lag time, inundated time and flood depth are also considered in the study.