| Title |
Estimation of Break Outflow from the Goeyeon Reservoir Using DAMBRK Model |
| Authors |
이진영(Lee, Jin Young) ; 박동혁(Park, Dong Hyeok) ; 김성준(Kim, Seong-Joon) ; 김태웅(Kim, Tae-Woong) |
| DOI |
https://doi.org/10.12652/Ksce.2017.37.2.0459 |
| Keywords |
괴연저수지;댐 붕괴;붕괴유출량;무인항공기 Goeyeon reservoir;Dam failure;Breach outflow;UAV |
| Abstract |
Several reservoirs that were managed by local governments and the Korea Rural Community Corporation have recently collapsed. One of them is the Goeyeon reservoir in Yeongcheon-si, Gyeongsangbuk-do that collapsed mainly around the spillway due to heavy rain at 9 O'clock, on 21 August 2014. The Goeyeon reservoir was an aging agricultural reservoir over 70 years since it was built. In this study, the collapse situation of the reservoir was reproduced through the DAMBRK model. Flood inundation maps were reconstructed for the breach outflow of the dam analyzed by the DAMBRK model. We estimated the breach duration and outflow of the reservoir as compared with the inundation image taken by the Unmanned Aerial Vehicle (UAV) at the time when the Goeyeon reservoir collapsed. The results of this study are expected to be useful for predicting damage in the downstream inundation area when a reservoir collapses. |