Block discrete element model generation method based on progressive finite element mesh and Voronoi segmentation method

The invention relates to a block discrete element model generation method based on a progressive finite element mesh and a Voronoi segmentation method and belongs to the field of numerical calculation. The method includes the steps of S1, drawing modeling information by using CAD; S2, reading the modeling information and generating a high-quality, continuous and progressive triangular mesh; S3, generating a discrete model and outputting a final calculation file; S4, integrating steps S1-S3 into software, so that a DDA block discrete element model, a UDEC block discrete element model and a 3DECblock discrete element model which are directly used for calculation are generated directly by only drawing CAD drawings and defining the minimum size of blocks. A specific block size distribution rule or size data can be defined, the block discrete element models which satisfy specific spatial distribution are generated, and the problem that a given size distribution rule cannot be generated according to current methods