期刊
HELIYON
卷 8, 期 4, 页码 -出版社
CELL PRESS
DOI: 10.1016/j.heliyon.2022.e09257
关键词
Risk; Dam break; HEC-RAS; Loss of life
资金
- National Council for Scientific and Technological Development - CNPq
This report estimated the loss of life and property and the variation of risk level in Sao Jose do Jacuipe, Brazil, caused by a simulated dam break. The study found that the city is exposed to time-dependent risk, and the absence of a warning system could result in significant casualties. However, the presence of a functioning warning system could greatly reduce the extent of destruction.
This report estimated the loss of life and the variation of risk level to people and properties from the city of Sao Jose do Jacuipe, at Bahia State, in Brazil, through a simulation of the dam break near the city. The simulations employ the HEC-RAS program with the HEC-GeoRAS plugin, both made available by the U.S. Army Corps of Engineers. The program is a hydrological model for the hydric flow propagation arising from the complete resolution of the Saint-Venant equation, while the plugin was used for vector editing by creating a geomorphological model from the river basin. The results from the research demonstrated that the city is exposed to a risk that is time dependent. In addition, the lack of a warning system about a possible break could cause the death of almost all residents. Otherwise, with a warning system operating, the estimation of destruction would be dramatically reduced.
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