Three-dimensional simulation method for a muck-pile body with a pile shape in Weibull distribution based on discrete elements,

Abstract

The invention discloses a three-dimensional simulation method for a muck-pile body with a pile shape in Weibull distribution based on discrete elements, and the method comprises the following steps: S1, 10 sphere recording radiuses are randomly generated, the radiuses with 15 edges are randomly endowed, i.e., the centers of the spheres are located at the end points of the edges, and paying attention to that the spheres at the end points of the connected edges are the same; S2, the 15 edges are processed according to the directions of respective arrows, so that the remaining parts except the radius of the endpoint sphere are filled with the sphere, namely, the center of the sphere is located on the edges; and S3, the related edges are extracted according to the heap geometric model of Weibull distribution to form seven surfaces, so that a closed chain is formed; according to the method, rocks on the surface of the muck pile are generated, then the whole muck pile surface serves as a closed initial surface, the interior of the whole muck pile is filled on the basis, when the rocks on the surface of the muck pile are generated, a pile shape geometric model needs to be simulated according to the sequence of points, edges, surfaces and bodies, and therefore three-dimensional visualization is conducted on the muck pile body with the muck pile shape distributed in a Weibull mode.

Description

technical field [0001] The invention belongs to the technical field of blasting effect evaluation, and in particular relates to a three-dimensional simulation method for blasting piles based on discrete element pair pile shape Weibull distribution. Background technique [0002] Open-air step blasting is widely used in mines, water conservancy, highways and other projects. With the increase of the difficulty of various earthworks and the increase of blasting costs, the prediction of blast pile shape has become more and more concerned by blasting workers. It is one of the important indicators to measure the blasting effect. It not only reflects the rationality of the blasting parameters and charge structure, but also directly affects the shovel loading, transportation efficiency and economic benefits. Research on key parameter acquisition method and 3D simulation technology of explosion pile body; research on explosion pile shape is to collect the overall image of explosion pi...

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Problems solved by technology

[0003] However, in the prior art, the application of the above-mentioned technology to realize "the three-dimensional simulation of the explosive pile with Weibull distribution based on discrete elements" has the following problems: (1) In order to realize the three-dimensional simulation of the explosive pile, it is necessary to establish a Weibull (2) At present, the three-dimensional simulation of explosive piles adopts discrete element commercial software and related technologies, which are protected by foreign patents, and there is no domestic independent intellectual property

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