Research on Risk Identification of Dam Break for Small Reservoir

The main risk of small reservoirs is dam break.Here,based on historical data,the security identification data about 18 small reservoirs in Daiyue District of Tai'an are analyzed,and the dam break modes and paths are also analyzed by using the event tree method.The results show that the main causes of dam break of small reservoirs are overtopping and construction quality of the dam.The proposition for dam break modes and paths could provide the basis for determination of dam-break probability and analysis of dam-break risk for small reservoir dams,and could also provide the basis for strengthening for dangerous release.