Method for constructing high-stone-content soil-stone mixture model based on Voronoi diagram

Abstract

The invention provides a method for constructing a high-stone-content soil-stone mixture model based on a Voronoi diagram, and solves the problems that an existing random block generation and puttingmethod is relatively high in algorithm complexity and cannot generate a high-stone-content model. The method comprises the following steps: 1) randomly arranging seed points in a target area; 2) obtaining a Voronoi diagram according to the seed points, and obtaining particle geometric information; 3) if the stone content needs to be adjusted, randomly selecting particles to shrink and update particle data, otherwise, directly entering the step 4); 4) circulating each particle, and randomly selecting a reference point on each side of each particle; and 5) sequentially connecting the reference points to generate an edge particle model, or drawing an elliptic arc tangent to the corresponding edge through two adjacent reference points, and connecting the elliptic arcs end to end to generate arounding particle model. Initial particles are generated by utilizing a Voronoi diagram, particle reconstruction is carried out by utilizing a method of randomly selecting reference points on each side of the particles, and an earth-rock mixture model which is higher in rock content and considers roundness is constructed.

Description

technical field [0001] The invention belongs to the field of numerical simulation research on the mechanical properties of geological materials, and in particular relates to a method for constructing a model of an earth-rock mixture with high rock content based on a Voronoi diagram. Background technique [0002] With the development of large-scale engineering projects at home and abroad and the development of modern rock and soil mechanics, the concept of soil-rock mixture has been proposed, so that the material composition of engineering geological bodies can be further refined from rock mass and soil mass to rock mass, soil mass, and rock mass. Soil-rock mixture. Soil-rock mixture includes not only natural gravel soil formed by rock weathering, transportation, and accumulation, but also artificially synthesized earth-rock dams, soil-rock mixture roadbeds in traffic engineering, and gravel soil foundations in construction projects. Therefore, the research on the mechanical...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing random block generation and placement method has high algorithm complexity and cannot generate a high rock content model, and provides a method for constructing a high rock content soil-rock mixture model based on the Voronoi diagram

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