A fine three-dimensional geological modeling method for an ore deposit

A technology of 3D geological and modeling methods, applied in 3D modeling, image data processing, instruments, etc., can solve the problem of low accuracy of 3D geological modeling, and achieve the effect of reducing data redundancy

Inactive Publication Date: 2019-05-03
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology

[0005] Aiming at the defects in the prior art, the present invention provides a fine three-dimensional geological modeling method for ore deposits, driven by geological knowledge, based on the triangulated irregular network (TIN) data model and corner point grid (CPG) data model Mixing spatial data models to realize the construction of 3D fine geological models can effectively solve the problem of low accuracy of 3D geological modeling

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  • A fine three-dimensional geological modeling method for an ore deposit
  • A fine three-dimensional geological modeling method for an ore deposit
  • A fine three-dimensional geological modeling method for an ore deposit

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[0026] In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0027] see figure 1 and figure 2 , the embodiment of the present invention provides a kind of deposit fine three-dimensional geological modeling method, comprises the following steps:

[0028] S1. Determine the scope of the mining area from the original geological data, and establish a regular cuboid that completely contains the mining area as the initial volume object for modeling, that is, a rough three-dimensional geological body;

[0029] S2. Obtain the geological data of the mining area from the original geological data (drilling data, geophysical data, chemical prospecting data, etc.), extract the spatial data set and the attribute data set, after cleaning and extraction, load them into the corresponding data tables, thereby Establish a theme da...

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Abstract

The invention provides an ore deposit fine three-dimensional geologic modeling method which comprises the following steps: S1, determining the range of a mining area from original geologic data, and establishing an approximate three-dimensional geologic body; S2, establishing an ore deposit three-dimensional geological modeling theme data market; S3, establishing a level model of a series of profiles, carrying out topological reasoning according to geological knowledge, and carrying out topological reasoning based on TIN-CPG mixed data structure model to establish an ore deposit three-dimensional geological model; S4, finely depicting the three-dimensional geological model of the ore deposit between the section and the drill hole, and checking and editing a generated complete geological body interface; and S5, cutting the rough three-dimensional geologic body by using a geologic body interface, and generating an ore deposit three-dimensional geologic solid model with a complex stratigraphic framework. According to the method, a TIN-based method is adopted; a CPG mixed data structure model finely expresses a complex geological phenomenon, and on this basis, practical geological knowledge is fused to construct an ore deposit fine three-dimensional geological model reflecting a real geological condition.

Description

technical field [0001] The invention relates to the field of three-dimensional geological modeling, in particular to a fine three-dimensional geological modeling method for ore deposits. Background technique [0002] In the process of geological and mineral exploration and its informatization, 3D geological modeling is an important research direction, and has important application significance in exploration and development and resource management. At present, the three-dimensional solid modeling method in geographic space is becoming more and more mature, but the construction of fine model is still a difficult problem to be solved urgently. [0003] Most of the current 3D geological models are obtained through interpolation or topological reasoning of the layered interface data of boreholes or sections, lacking the integration of geological knowledge, and belonging to the purely mathematical spatial grid modeling method, which is easy to cause the constructed model to be in...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/05
Inventor 张夏林赵亚涛朱福康吴冲龙翁正平张志庭李章林田宜平何珍文李新川
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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