Three-dimensional visualization method for block theory balance area chart

A technology of area map and balance, applied in the field of discontinuous engineering calculation visualization, it can solve the problems that have not yet occurred, and achieve the effect of visual analysis results, intuitive analysis results, and easy to understand.

Active Publication Date: 2017-09-22
UNIVERSITY OF CHINESE ACADEMY OF SCIENCES
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Problems solved by technology

Although the theory is complete, but the balanced area map has been developed so far. Looking at home and abroad, there has not yet been a map for the balanced area. Figure three Analysis tools and engineering application cases of dimensional visualization method

Method used

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  • Three-dimensional visualization method for block theory balance area chart
  • Three-dimensional visualization method for block theory balance area chart
  • Three-dimensional visualization method for block theory balance area chart

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Embodiment Construction

[0029] The present invention is based on a block theory three-dimensional sphere analysis method (Jianyong Li, Jian Xue, Jun Xiao, Ying Wang. Three Dimensional Sphere Analysis Method of Block Theory, 2010 International Conference on Computer Application and System Modeling (ICCASM2010), Taiyuan, Shanxi, pages 578- 582, 2010.10.) established the joint cone (JP) model, on the basis of the joint cone model, a three-dimensional visualization method for the theoretical equilibrium area diagram of a block is proposed. The present invention will be described in detail below in conjunction with the accompanying drawings and examples.

[0030] Such as figure 1 As shown, the present invention provides a three-dimensional visualization method of the theoretical equilibrium region diagram of a block, which maps the analysis process and results to the three-dimensional space and satisfies the interactive requirements at the same time. The key is to use the three-dimensional The graphic wa...

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Abstract

The invention provides a three-dimensional visualization method for a block theory balance area chart. The method comprises the steps that a two-dimensional planar projection area and a corresponding three-dimensional space joint cone picking object model are established; whether a joint cone object is clicked and selected is determined; the normal direction out of the pointing of each plane of a joint cone is acquired, and the normal and intersection edge information is recorded; according to the information of the normal out of the pointing and the intersection edge, an equilibrium area in various movement modes is drawn; the small circular conical surface starting vector and the rotation angle are calculated, and a single-sided sliding friction angle contour plane is drawn; the boundary vector of a fan-shaped plane is calculated, and a double-sided sliding friction angle contour plane is drawn; according to a drawn equilibrium area map, interactive operation of a mouse in a three-dimensional space is carried out; an area in which active resultant force is located is calculated, and the motion mode of a block is determined; the friction angle value of the stable block is analyzed; when the actual friction angle of the block is greater than the friction angle value corresponding to the friction angle contour plane in which the active resultant force direction is located, the block remains stable; and on the contrary, the block is a key block and is provided with support measures.

Description

technical field [0001] The invention relates to a visualization method for discontinuous engineering calculations, in particular to a three-dimensional visualization method for a theoretical equilibrium area map of a block applied in the field of geotechnical engineering. Background technique [0002] As the direct object of engineering such as slopes, foundations and underground caverns, rock mass has withstood various geological actions in the long process of geological history development, and under the long-term action of in-situ stress, it retains various A natural geological body that shows signs of permanent deformation and traces of geological formations. Since there are various structural planes in the rock mass, and the structural planes control the stability of the rock mass, the engineering rock mass is far from the continuous deformation body. Whether a calculation and analysis method can be widely used in rock mass stability analysis, Much depends on the reaso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T19/20G06F3/0481
CPCG06F3/04815G06F2203/04802G06T19/20G06T2210/36G06T2219/2008
Inventor 薛健宋兴旭吕科
Owner UNIVERSITY OF CHINESE ACADEMY OF SCIENCES
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