A three-dimensional simulation method for explosive piles with Weibull distribution based on discrete elements

Abstract

The invention discloses a method for three-dimensional simulation of explosive piles whose pile shape is Weibull distribution based on discrete elements. End point, note that the balls at the end points of the connected sides are the same; S2, process the 15 sides according to the direction of their respective arrows, so that the remaining part after removing the radius of the end point ball is filled with a sphere, that is, the center of the ball is located on the side; S3, According to the heap shape geometric model of Weibull distribution, extract the relevant sides to form 7 faces respectively, so that it forms a closed chain; the present invention uses the rock block on the surface of the explosion pile, and then uses the entire explosion pile surface as the closed initial surface, based on this Fill the inside of the entire explosion pile, and when generating rock blocks on the surface of the explosion pile, the geometric model of the pile shape needs to be simulated in the order of point, edge, surface, and body, so that the explosion pile is shaped as a Weibull distributed explosion pile body 3D visualization.

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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