In forecasting deformation of dam

many influential factors exist as well as interrelation of factors was complex. Hence

general simulation functions are difficultly to meet the needs of safety supervising of dam. As we know

adaptive neural-fuzzy inference system(ANFIS) has good capability of fuzzy system and artificial neural network. Influential factors of deformation of diaphragm wall analyzed systemically as well as effects of temperature

time

and water level of reservoir considered

predicting model of deformation of dam is established based on ANFIS. Taking the second stage cofferdam of Three Gorges Project for example

the studies are carried out with this model. The results show that the model is simple in calculation and good in applicability and precision

so as to provide a new method for forecasting deformation of dam.