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A coupling modeling method for numerical model of complex geological body

A numerical model and modeling method technology, applied in 3D modeling, image data processing, instruments, etc., can solve problems such as geometric modeling of complex geological bodies that cannot be completely solved, achieve real and reliable simulation results, and improve modeling accuracy , strong applicability

Active Publication Date: 2018-12-28
THE FOURTH INST OF NUCLEAR ENG OF CNNC
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Problems solved by technology

Although Midas / GTS has good advantages over other finite element analysis software in terms of geometric modeling and grid division, it still cannot completely solve the geometric modeling problems of complex geological bodies involved in the field of mining engineering

Method used

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  • A coupling modeling method for numerical model of complex geological body
  • A coupling modeling method for numerical model of complex geological body
  • A coupling modeling method for numerical model of complex geological body

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Embodiment Construction

[0039] Embodiments of the present invention will be described in detail below in conjunction with examples and accompanying drawings.

[0040] This embodiment is a coupling modeling method for numerical models of complex geological bodies, which is applied to the simulation analysis of ground stress in a mining excavation plan in a certain place. The geological structure in the actual stratum involved in the mining excavation plan is very complicated, including For complex geological bodies such as faults, folds, pinch-outs, and irregularities, there is a large gap between the in-situ stress simulation analysis and the actual excavation after modeling using conventional methods. like figure 1 As shown in the schematic diagram of the data flow in the middle, this embodiment includes the following specific implementation steps:

[0041] Step A, obtain the underground chamber design parameters, determine the parameters of the stope geological space model according to the influence...

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Abstract

The invention relates to a coupling modeling method of a numerical model of a complex geological body, belonging to the field of engineering geology. A technology for processing geological informationincludes the preservation of complex geological body information in geographic information systems, and creating a first three-dimensional geological surface, the first underground chamber structuremodel and the first stope geological space model, the first three-dimensional geological surface being decomposed, the first underground chamber structure model and the first stope geological space model being transformed into a second three-dimensional geological surface, the second underground chamber structure model and the second stope geological space model being transformed into a command line node operation to create a complex geological body that can be used to solve nonlinear problems and large deformation rock mechanics problems; the second underground chamber structure model and thesecond stope geological space model being transformed into a command line node operation to create a complex geological body. The invention provides a coupling modeling method for realizing numericalmodeling of any complex geological body, ensuring that the numerical model basically coincides with the actual geological body, and improving the accuracy of the numerical model.

Description

technical field [0001] The invention belongs to the field of engineering geology, and relates to a geological information processing technology, in particular to a coupling modeling method of a complex geological body numerical model, which is used for evaluating the stability and safety indicators of a mining project. Background technique [0002] In mining engineering, the geological structure in the actual stratum is very complex, and complex geological bodies such as faults, folds, pinch-outs, and irregularities often appear. These geological bodies affect the stress distribution of the original rock to varying degrees, thereby affecting the actual underground mining activities. Safety, therefore, needs to be analyzed and evaluated using numerical simulation methods for the stability and safety of planned underground mining activities. [0003] The process of using numerical simulation methods to analyze and evaluate the stability and safety of planned underground mining...

Claims

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Application Information

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IPC IPC(8): G06T17/05G06T17/20
CPCG06T17/05G06T17/20
Inventor 李兵
Owner THE FOURTH INST OF NUCLEAR ENG OF CNNC
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