Method and device for constructing three-dimensional model of horizontal construction platform

The invention discloses a method and a device for constructing a three-dimensional model of a horizontal construction platform. The method comprises the following steps: preprocessing modeling data ofthe construction platform; deducing a point set elevation corresponding to the cut stratum boundary based on the point set elevation of each stratum boundary; based on the point set of the boundary of one stratum lower layer surface, utilizing a Kriging interpolation method to realize interpolation of the corresponding stratum lower layer surface; constructing a TIN model of the exposed side surface of the stratum; constructing the TIN model of the cut side surface of the stratum; until TIN models of the lower layer and the corresponding side surfaces of different stratums are completed; andstitching to generate OBJ three-dimensional models of different stratums according to the DEM and the TIN models of the upper and lower layers and the side surfaces of the different stratums. The invention is low in algorithm