Numerical simulation study of dam break flood in dayang reservoir

Abstract

Most of the small reservoirs in Zhejiang Province were built before the 1970s. They have reached or exceeded their service life and entered a period of high risk of disease. The risk of dam failure always exists. Combined with the proposal of the water conservancy department, forecasting, rehearsal, early warning, and pre-planning should be taken as the key to the safety of reservoirs during flood season. This paper uses numerical methods and two-dimensional hydrodynamic models to carry out simulation research on the dam failure process of Dayang reservoirs, simulate the development process of dam failure of small reservoirs, and draw a map of the impact range of dam failure. This paper provides technical support for formulating highly targeted safety emergency plans for small reservoir dam failures.