The empirical equation of cyclic resistance ratio CRR of saturated sands with different probability level is utilized to evaluate the earthquake-induced sand liquefaction for 2D large region site.By GIS technique

the evaluation values of seismic liquefaction potential at the observation boreholes can be adopted as the elevation in digital elevation model and then the identification of liquefaction locality for 2D large region site can also be estimated based on Kriging interpolation method.The research shows that: The Kriging interpolation is an effective method to estimate the latent distribution of the site liquefaction potential beyond the observation boreholes.So it is a preferable way to evaluate the possible liquefaction range for 2D large site.Based on ArcGIS software

the Kriging method embedded in the "Spatial Analysis" extension module can be utilized to evaluate the liquefaction potential of the unidentified points by the evaluated liquefaction potential results of the reconnaissance boreholes.Thus the 2D distribution map of the latent liquefaction potential for the large region site can be generated.