Abstract: The safety of dike is affected by flood,earthquake,the soil of the levee,the structure of the levee foundation and many other factors;moreover,its mechanism is rather complex.Because any accident of it will result in a huge catastrophe,the safety of levee construction has been a matter of common concern and a hot research topic in the field of engineering.The mutation theory is introduced to the safety evaluation of embankment.A comprehensive assessment indicator system of the safety of dike,based on catast...