Application in Heavy Metal Contaminated Sites of Three-dimensional Visual Modeling

Using a battery factory relocation site as the research object, stratigraphic exploration data and lead concentrations in soil were used to establish a contaminant prediction three-dimensional model of the site. In constructing three-dimensional contaminant prediction model, the cross validation analysis method was used to select the optimal interpolation method and parameters. The three-dimensional visual projection and analysis was performed for the lead pollution distribution in the contaminated soil. The results showed that the minimum spacing of sample points (40 m×40 m) as well as nearest point interpolation method were most suitable for describing the terrain of the site. The Kriging interpolation method showed high precision and was suitable for analysis of soil pollution characteristics of interpolation. The relationship between the site characteristics and the stratum and distribution of production was analyzed by the established three-dimensional visual modeling method.