In addition,the local area property information extraction and encryption algorithm are preset in the strata-level construction algorithm to ensure the accuracy of computation and analysis when the model is applied later. After that the irregular triangular network algorithm is applied to construct the stratigraphic model,and finally the 3D complex geological body model in the study area is established by the generalized trigonal-tetrahedral voxel algorithm. The method is formulated as follows:firstly,the strata of the study area are divided according to the borehole data and profiles,combined with the geological evolution history of the strata and the theory of horizontal set theory,and then the Kriging interpolation method is used to introduce virtual boreholes into the borehole point cloud data.
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