Based on Fisher discriminant theory

the Fisher discriminant analysis (FDA) model was established for forecasting the possibility of sand liquefaction. Eight factors were selected such as seismic intensity

epicenteral distance

groundwater level

sand depth

blow number of standard penetration test

mean granular diameter

coefficient of nonuniformity

ratio of shearing stress to effective overburden stress as the discriminant factors of the FDA model. A series of experimental data of sand liquefaction were taken as the training and testing samples

then some other practical data were used to verify this model. The results show that the FDA model is a simple

feasible and high accurate prediction method; and it is one of the efficient methods for solving prediction of sand liquefaction.