Impacts of Dam Break at Upstream of Lo River on Red River and Thai Binh River Delta
Nguyen Dang Giap1, Tran Quoc Thuong2, Le The Cuong3, Bui Ngoc Quyen4, Chu Thi Ngoan5, Quang Hung Nguyen6
1Nguyen Dang Giap*, Key Laboratory of River and Coastal Engineering, Alley Chua Boc Street, Dong Da, Hanoi, Vietnam.
2Tran Quoc Thuong, , Key Laboratory of River and Coastal Engineering, Alley Chua Boc Street, Dong Da, Hanoi, Vietnam.
3Le The Cuong, Key Laboratory of River and Coastal Engineering, Alley Chua Boc Street, Dong Da, Hanoi, Vietnam.
4Bui Ngoc Quyen, Key Laboratory of River and Coastal Engineering, Alley Chua Boc Street, Dong Da, Hanoi, Vietnam.
5Chu Thi Ngoan, Key Laboratory of River and Coastal Engineering, Alley Chua Boc Street, Dong Da, Hanoi, Vietnam.
6Quang Hung Nguyen, Thuyloi University, Tay son, Dong Da Hanoi, Vietnam.
Manuscript received on September 22, 2019. | Revised Manuscript received on October 15, 2019. | Manuscript published on October 30, 2019. | PP: 6371-6378 | Volume-9 Issue-1, October 2019 | Retrieval Number: A2259109119/2019©BEIESP | DOI: 10.35940/ijeat.A2259.109119
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The Red River – Thai Binh River Delta is a large economic area, densely populated, especially Hanoi, the capital of Vietnam. This is the key area protected by the dike system that has been built for nearly 1000 years. Recently, along with the dike system, the Red River – Thai Binh River Delta is also protected by a large reservoir system at upstream. However, this raises concerns about dam safety, and requires assessments about the impact of dam break on the delta to prepare appropriate response measures. This paper applies 2D mathematical simulation model of flood propagation due to dam break at Thac Ba and Tuyen Quang reservoirs. The results clearly show the characteristics of the flood caused by dam break (such as water level, depth, velocity, lag time) in affected areas. Furthermore, overflow incident of main dikes and ring dikes at the downstream areas is also determined for both cases dam break with flood and without flood.
Keywords: Dam break, Extreme flood, Emergency flood release, Red River Thai Binh River.