Risks in levee engineering caused by many uncertainty factors are cared about by people. The thesis is combined with the project Research on risk analysis and risk management for left bank levee of Banqiao river in Nanjing . Based on constituting computation model, the risk coefficients and theirs critical value for main invalidation codes of typical section are calculated through risk analysis method founded on reliability, comprehensive risk for flood prevention is analyzed and appraised. Measures of risk...