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A Modeling and Recognition Method of Complex Rock Fracture Model

A technology of rock fissures and model modeling, applied in the field of geotechnical engineering simulation and simulation research, can solve problems such as complex model establishment and calculation, and achieve the effects of simplifying complexity, avoiding time and energy, and improving efficiency

Active Publication Date: 2021-03-19
NORTHEASTERN UNIV LIAONING
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Problems solved by technology

[0007] In order to achieve the above object, the present invention provides a complex model recognition method based on ANSYS imported from ProE to Flac3D, which realizes the method of importing the ProE three-dimensional model into Flac3D for simulation calculation, and solves the problem of establishing and calculating the complex model of Flac3D geotechnical engineering

Method used

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  • A Modeling and Recognition Method of Complex Rock Fracture Model
  • A Modeling and Recognition Method of Complex Rock Fracture Model
  • A Modeling and Recognition Method of Complex Rock Fracture Model

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Embodiment 1

[0031] In the subject research, the numerical simulation experiment of prefabricated complex multi-cracks in the rock was carried out, the process is as follows figure 1 Shown:

[0032] S1. Using ProE software to model the complex rock fracture model

[0033](1) Determine the length, width and height of the rock model to be 60mm, 60mm and 60mm respectively, the long axis of the elliptical crack is 10mm, the short axis is 5mm, the crack thickness is set to 1mm, the angle between the crack and the horizontal direction is 45°, and 27 cracks are arranged in the cube model , the distance between cracks is 15mm; use the sketch function of ProE to draw the two-dimensional view of the model, and then use the part module to obtain the three-dimensional model through stretching operation;

[0034] (2) Import the rock 3D model in the component-design of ProE, and add two positioning planes according to the coordinates of the key position control points;

[0035] (3) Next, import the el...

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Abstract

The invention relates to a modeling and identification method of complex rock fracture models imported from ProE into Flac3D based on ANSYS. Because ANSYS has convenient and high-quality meshing functions, Flac3D software has very powerful numerical calculation capabilities in geotechnical engineering. However, the solid modeling capabilities of both softwares are relatively weak and cannot establish complex models. In the early stage of the present invention, the excellent modeling capabilities of ProE are used to model complex models. In the mid-term, the powerful grid processor of ANSYS is used for mesh division. In the later stage, Flac3D is used for simulation calculations. The advantages are complementary and the strengths of ProE, ANSYS and Flac3D are implemented. The error-free link between them not only prevents research technicians from spending a lot of time and energy studying the complex FISH language in Flac3D, but also avoids the inability to model and mesh complex models in geotechnical engineering problems.

Description

technical field [0001] The invention relates to the field of geotechnical engineering simulation research, in particular to an ANSYS-based modeling and identification method for complex rock fissure models imported from ProE into Flac3D. Background technique [0002] With the rapid economic development of our country in recent years, various large-scale infrastructure constructions are in full swing, and geotechnical engineering problems involving complex geological environments emerge in endlessly. With the continuous advancement of geotechnical technology, foundation pit engineering and tunnel engineering are facing problems such as deeper excavation depth, larger excavation area and more complex construction process. For example, the Mponig Gold Mine in South Africa has been excavated below 4,000 meters underground, and the diversion tunnel of the Jinping Hydropower Station in my country has a maximum depth of 2,500 meters. In this case, geotechnical engineering issues h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/23G06T17/05
CPCG06T17/05G06F30/23
Inventor 贾蓬姬万民任云阳张瑶赵爱成李磊吴振东
Owner NORTHEASTERN UNIV LIAONING
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