Research on Regional Dividing Technology for Liquefaction Based on ArcGIS

To assess liquefaction degree in the south region of Tangshan city, totally 65 boreholes are collected and the establishment of drilling graphics database and attribute database are completed on ArcGIS.Then the potential of liquefaction values are given by a multi-factor regression method, seven factors and four factors for different precisions respectively. According to these drilling data, liquefaction condition for each borehole is discriminated, and the liquefaction condition of the unknown area is speculated by Kriging interpolation method, then the liquefaction zoning map of south of Tangshan and its southern region is presented based on ArcGIS.