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Excavation analysis method aiming at complex ore body

An analysis method and technology of ore bodies, applied in the fields of spatial information processing, computer and geological exploration, can solve the problems of large time and space complexity of algorithms, complex excavation algorithms, poor stability and robustness, etc., and achieve real visualization. effect, reusability, cost reduction effect

Inactive Publication Date: 2012-07-25
BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY +1
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AI Technical Summary

Problems solved by technology

[0003] Existing technical methods are mainly aimed at the excavation analysis realized by attributes or volume models (such as tetrahedron, hexahedron, triangular prism, etc.). Due to the single form and simple structure of the composed unit body, the algorithm is easy to design and relatively stable, but The amount of data is huge, and the time complexity and space complexity of the algorithm are large
At present, for the excavation analysis of layered and simple ore body structure models, the algorithm is relatively mature; for complex ore body structure models, due to geological phenomena such as faults, lenses, and intrusive rocks, the continuity of the geological structure is damaged , the excavation algorithm is very complex, and its stability and robustness are poor. The results are mainly presented in wireframe mode, that is, open or closed curves and polygons are used as the excavation results, and the realism and display effect are poor.

Method used

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  • Excavation analysis method aiming at complex ore body
  • Excavation analysis method aiming at complex ore body
  • Excavation analysis method aiming at complex ore body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Take the excavation analysis of a complex ore body in an iron mine in Hebei as an example. Specific steps are as follows:

[0061] Step 101: Establishing a complex ore body structure model, if the surface constituting the ore body does not use a triangular mesh, first convert it to a triangular mesh unit.

[0062] Step 102: Select the Aohuici County Formation as an example for excavation analysis, and the analysis methods for other single-layer or multi-layer structures are similar. The Austrian Huicixian Formation contains three iron ore clusters (such as image 3 ), which belongs to the structure of class b) and class d), records properties and stores them.

[0063] Step 103: Set the internal and external area mode, select the inward value, and the cutting direction is 90 0 , the thickness of the excavated area is 350m. Invoke interactive tools to capture coordinates in 3D space (such as Figure 4 shown), the calculated and generated part of the combined mode of ...

Embodiment 2

[0073] Taking the excavation analysis of a complex ore body in a gold mine resource protection project in Henan as an example, the specific steps are as follows:

[0074] Step 201: Establish complex ore body structure strata, mainly including Quaternary system, bedrock of F1 fault zone, bedrock above F5 fault zone under F1 fault zone, gold deposit in F1 fault zone, bedrock of F5 fault zone, middle rock of F5 fault zone Gold deposits, bedrock under the F5 fault zone, etc., the gold deposits in this area are very complex, including various conditions of the ore body structure.

[0075] Step 202: Set the stereo section mode. Set the height of the cutting surface between (-186~950), towards an angle of 43 degrees. By invoking the interactive tool, the 3D information of the cut surface is captured as (8343.03, 5269.47, 890.07) (8772.15, 6134.22, 624.72).

[0076] Step 203: By implementing collision detection and performing surface-to-surface Boolean operations, the area Ω is reco...

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Abstract

The invention mainly discloses a method for realizing excavation analysis by means of cutting surfaces and cutting surface combination based on a complex ore body. By the aid of the method, a three-dimensional ore body structural model can be cut from different directions and different angles by the aid of the method, interested areas can be excavated, a three-dimensional profile map can be generated, a grid map can be formed and the like, so that a geologist is easy to observe geological features such as the geological structure forms inside a geologic body, structures inside the ore body and the like and performs various measurement, calculation, statistical analysis and the like, and further protection and effective and reasonable utilization of ore body resources are facilitated, and cost is reduced. The method is high in accuracy, stability and reusability, and can be widely applied to excavation operation of arbitrary complex areas, simulation of underground natural landscapes such as hollow caves, subsidence areas, karst caves, underground rivers and the like and simulation of simulation man-made objects such as subway tunnels, roadways, underground pipelines, goaves, grottos, drainage roadways and the like.

Description

technical field [0001] The invention relates to geological prospecting, spatial information processing and computer technology, in particular to an excavation analysis method for complex ore bodies. Background technique [0002] Geological problems have become a basic problem in digital mines, underground engineering, environmental engineering, and resource development. The modeling of complex ore body and its excavation analysis is one of the key technologies to solve geological problems. Due to the invisibility of the underground landscape, oil, coal, metal minerals, groundwater and other aspects need to be detected and analyzed before mining. The excavation of geological bodies has important practical significance in geoscience application analysis. Through the excavation analysis method, the visualization of the internal structure of the geological body can be realized, and the conditions that cannot be understood in the actual geological environment can be provided fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 武强徐华黄松柏
Owner BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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