CN115082634A - Three-dimensional geological structure method for weathered layer granite rare earth ore - Google Patents
Three-dimensional geological structure method for weathered layer granite rare earth ore Download PDFInfo
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Abstract
A three-dimensional geological structure method for weathered granite rare earth ore comprises the following steps: (1) acquiring exploration data of a plurality of exploration holes, extracting drilling data from the exploration data, and integrating the data into modeling data according to the drilling data; (2) performing geological mapping through modeling data, and establishing a three-dimensional geological map according to two-dimensional geological plan data; (3) establishing a main three-dimensional geological structure design profile of the rare earth ore through crossing, blocking and layering, and revealing the underground geological condition of a profile area; (4) and generating a stratum entity through the stratum profile, extracting stratum data from the exploration data, taking the stratum data as the project parameters of the stratum entity, and generating a three-dimensional geological model through the stratum entity. The method can effectively and quickly carry out three-dimensional geological modeling, and improves modeling section drawing efficiency and model accuracy by using the countermeasure network.
Description
Technical Field
The invention relates to the technical field of geological model structures, and provides a three-dimensional geological structure method for weathered layer granite rare earth ore aiming at geological resource underground structures and reserves of granite weathered zone heavy rare earth ore.
Background
Along with the shortage of mineral resources, the improvement of environmental protection consciousness provides technical support for fully utilizing three rare resources with low grade, complex composition, difficult mining and high strategic position and the in-situ leaching technology provides comprehensive utilization of resources. However, due to the fact that the knowledge of underground resource reserve distribution, structure and the like is not clear enough, the traditional method based on the drilling data has the defects that the acquisition cost is high, and the three-dimensional modeling fineness is insufficient due to the sparse drilling distribution. Therefore, three-dimensional visual mine geological structure simulation is developed, the boundary range of underground mineral resources can be accurately predicted, reliable processing schemes and technical measures are formulated, the construction cost is reduced, meanwhile, data guarantee is provided for formulating reasonable geological disaster prevention means and emergency plans, and valuable metal in ore bodies can be efficiently recycled and utilized.
The three-dimensional geological modeling technology is a novel technology which is used for geological analysis by combining tools such as spatial information management, geological interpretation, spatial analysis and prediction, geostatistics statistics, entity content analysis, graphic visualization and the like under a three-dimensional virtual environment, overcomes the complex geological problem which cannot be solved under the traditional two-dimensional environment, and has wide application value in the aspects of accurately estimating ore body reserves, geological structure forms expressed by geological plane diagrams and profile diagrams, geological three-dimensional spatial analysis, the spatial forms of geological structures and geological bodies, the morphological structures of ore bodies, accurately delineating ore bodies and the like. However, the existing method for three-dimensional modeling of the weathered layer granite ore body with large area, less data information and difficult modeling by utilizing the blocked profile has the defects in aspects of module division, data integration and the like.
Disclosure of Invention
The invention aims to provide a three-dimensional geological structure method for a weathered granite rare earth ore, aiming at the problem that the existing multidisciplinary data is difficult to be effectively utilized in three-dimensional modeling in the weathered granite, the efficiency and the truth of the three-dimensional geological modeling in a large area of a mineral belt are improved by utilizing a NoSQL database through data integration and file format conversion and utilizing a cross-partitioning-layering modeling idea, the stoping range of the weathered granite rare earth ore is determined, a good area environment is provided for realizing in-situ leaching of the rare earth ore, and the resource comprehensive utilization is realized.
In order to realize the purpose, the technical scheme of the invention is as follows: a three-dimensional geological structure method for weathered granite rare earth ore comprises three-dimensional visual imaging for geological exploration of various metal mines, and comprises the following specific steps:
(1) acquiring exploration data of a plurality of exploration holes, extracting drilling data from the exploration data, and integrating the data into modeling data according to the drilling data;
(2) performing geological mapping through modeling data, and establishing a three-dimensional geological map according to two-dimensional geological plan data;
(3) establishing a main three-dimensional geological structure design profile of the rare earth ore through crossing, blocking and layering, and revealing the underground geological condition of a profile area;
(4) and generating a stratum entity through the stratum profile, extracting stratum data from the exploration data, taking the stratum data as the project parameters of the stratum entity, and generating a three-dimensional geological model through the stratum entity.
The acquiring a plurality of exploration hole data comprises the following steps of, after extracting drilling data from the exploration data:
arranging related data including geographic data, geological data basic data, remote sensing data, geophysical data, weathered layer granite physical/chemical analysis and test data and ore deposit drilling exploration data;
and establishing a three-dimensional geological basic database comprising a point database, a line database and a surface database by utilizing the basic data and a NoSQL type database, and establishing a three-dimensional ore body geological model by utilizing a MongoDB non-relational database.
And (3) establishing the underground geological condition of the main section area of the rare earth ore through crossing, blocking and layering, which comprises the following steps:
according to the characteristics of the peripheral region of the rare earth ore, based on geological database data, performing blocking-layering building geological profile modeling by the idea of cross-blocking-layering modeling, wherein the geological profile modeling comprises a main profile, a constraint profile and a modeling profile, and the profile graph is matched with the underground geological rule by utilizing gravity-magnetic joint inversion;
screening the modules, simultaneously carrying out grid modeling in a blocking, layering and zoning mode, wherein the modules comprise rock masses and non-rock masses, and combining all the rock masses and the non-rock masses to construct a module set;
and establishing a cross constraint profile by taking the building module as a unit, and establishing a modeling profile parallel to the constraint profile under the constraint of the constraint profile.
The step (4) of generating a three-dimensional geological model through the stratigraphic entity comprises:
(1) constructing a surface model: acquiring digital elevation model data and superposing remote sensing images;
(2) and establishing a three-dimensional geological model.
The three-dimensional geologic model is generated by using the underground geologic body model and comprises the following steps: and generating a TIN triangular network by utilizing a Delaunay triangular section algorithm to form an underground geological model.
The method for generating the TIN triangulation network by using the Delaunay triangulation profile algorithm comprises the following steps:
(1) cutting a geological profile, compiling the cutting profile by determining the type, depth and layout of the cutting geological profile, and drawing a 2/2.5 dimensional map of the cross profile layout and the deep geological structure;
(2) performing gravity-magnetic joint inversion on the three-dimensional graph based on a Delaunay triangular profile algorithm, determining a two-dimensional and three-dimensional corresponding relation mainly by calculating a 2-dimensional profile TIN triangular network, and generating a three-dimensional data point TIN triangular network, wherein the method comprises the following steps of: gridding the high lines by using digital elevation model data, reading by using Surfer software to form point objects, and generating a TIN (triangulated irregular network) by using a Delaunay triangular section algorithm;
(3) superposing the data with the same area and the same size of the remote sensing image and the digital elevation model data in a picture mode to realize data visualization;
(4) and extracting point data with the same attribute of the data structure to form formation point data, and generating the TIN triangulation network by utilizing a Delaunay triangulation algorithm.
The invention has the beneficial effects that:
aiming at the problem that existing multidisciplinary data are difficult to effectively utilize in three-dimensional modeling of the weathered granite, the NoSQL database is utilized to improve the efficiency and the truth of three-dimensional geological modeling of a large area of a mineral zone through data integration and file format conversion and by utilizing a cross-blocking-layering modeling idea, so that the mining range is determined for the weathered granite rare earth ore circle, a good area environment is provided for realizing in-situ leaching of the rare earth ore, and the resource comprehensive utilization is realized.
The method has the advantages that three-dimensional modeling in the weathered granite layer is carried out, the boundary range of underground mineral resources can be accurately predicted, reliable processing schemes and technical measures are formulated, construction cost is reduced, meanwhile, data guarantee is provided for formulating reasonable geological disaster prevention means and emergency plans, and valuable metal in ore bodies can be efficiently recycled and utilized.
Drawings
FIG. 1 is a flow chart of a three-dimensional geological construction method of a weathered layer granite rare earth ore according to the invention.
Fig. 2 is a cross-sectional layout.
FIG. 3 is a flow chart for generating a three-dimensional geological profile.
FIG. 4 is a modeling flow chart of the three-dimensional geological structure method of the weathered layer granite rare earth ore according to the present invention.
Detailed Description
The technical solution of the present invention is further described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1, the three-dimensional geological structure method of the weathered layer granite rare earth ore comprises the following steps:
(1) acquiring exploration data of a plurality of exploration holes, extracting drilling data from the exploration data, and integrating the exploration data into modeling data according to geographic data, geological data basic data, remote sensing data, geophysical data, weathered layer granite physical/chemical analysis and test data and ore deposit drilling exploration data.
(2) And carrying out geological mapping through modeling data, and establishing a three-dimensional geological map according to two-dimensional geological plan data.
(3) Establishing a main three-dimensional geological structure design profile of the rare earth ore through crossing, blocking and layering, and revealing the underground geological condition of a profile area; according to the characteristics of the peripheral region of the rare earth mine, based on geological database data, partitioning and layering are carried out through a cross-partitioning-layering modeling idea to establish geological profile modeling, wherein the geological profile modeling comprises a trunk profile, a constraint profile and a modeling profile, and a profile graph is made to conform to the underground geological rule by utilizing gravity-magnetic joint inversion;
screening the modules, simultaneously carrying out grid modeling in a blocking, layering and zoning mode, wherein the modules comprise rock masses and non-rock masses, and combining all the rock masses and the non-rock masses to construct a module set;
and establishing a cross constraint profile by taking the building block as a unit, and establishing a modeling profile parallel to the constraint profile under the constraint of the constraint profile.
(4) And generating a stratum entity through the stratum profile, extracting stratum data from the exploration data, taking the stratum data as the project parameters of the stratum entity, and generating a three-dimensional geological model through the stratum entity.
And (3) establishing a three-dimensional geological foundation NoSQL type database comprising a point database, a line database and a surface database by utilizing the basic data, and establishing a three-dimensional ore body geological model by utilizing a MongoDB non-relational database.
As shown in fig. 1, raw data is acquired, including:
the geographic data is used to construct a three-dimensional surface model.
The geographic data basic data is used for realizing the accuracy of the geological interface in depth extension.
The remote sensing data is mainly used for beautifying the surface of the regional geological data.
Geophysical data are used to analyze subsurface geological information.
Petrophysical/chemical and test data provide the raw information for providing real subsurface geological data.
The deposit drilling exploration data provides reliable underground exploration data for building a three-dimensional geological model.
As shown in fig. 2-3, a geological profile, comprising:
and establishing format conversion between the three-dimensional profile data and the GM-SYS by using the original data.
And (4) establishing geometric data of points, lines and planes and attribute data thereof, which are formed by the three-dimensional geological model database, by utilizing MongoDB in the NoSQL database.
As shown in fig. 4, the regional three-dimensional geological model comprises:
the rock mass is screened to be used as a rock mass building block, and a non-rock mass region is partitioned by using a mode of fixing a grid net to obtain a plurality of grid net building blocks.
And combining all rock mass modeling blocks and the grid building modules to form a modeling fast set.
And establishing a cross constraint profile by taking the building block as a unit. Under the constraint of the constraint profiles, establishing modeling profiles parallel to the constraint profiles, including a main profile, the constraint profiles and the modeling profiles.
After the modeling section is subjected to gravity magnetic inversion verification, the two-dimensional data of the section is converted into three-dimensional data, and then a three-dimensional geological model of the current modeling module is established by utilizing a Delaunay triangulation algorithm.
And carrying out model verification based on reliable data such as drilling and the like.
Claims (6)
1. A three-dimensional geological structure method for weathered granite rare earth ore comprises three-dimensional visual imaging for geological exploration of various metal mines, and is characterized by comprising the following specific steps:
(1) acquiring exploration data of a plurality of exploration holes, extracting drilling data from the exploration data, and integrating the data into modeling data according to the drilling data;
(2) performing geological mapping through modeling data, and establishing a three-dimensional geological map according to two-dimensional geological plan data;
(3) establishing a main three-dimensional geological structure design profile of the rare earth ore through crossing, blocking and layering, and revealing the underground geological condition of a profile area;
(4) and generating a stratum entity through the stratum profile, extracting stratum data from the exploration data, taking the stratum data as the item parameters of the stratum entity, and generating a three-dimensional geological model through the stratum entity.
2. The method of claim 1, wherein the obtaining a plurality of survey hole data, after extracting borehole data from the survey data, comprises:
arranging related data including geographic data, geological data basic data, remote sensing data, geophysical data, weathered layer granite physical/chemical analysis and test data and ore deposit drilling exploration data;
and establishing a three-dimensional geological basic database comprising a point database, a line database and a surface database by utilizing the basic data and a NoSQL type database, and establishing a three-dimensional ore body geological model by utilizing a MongoDB non-relational database.
3. The method for three-dimensional geological construction of rare earth ore of weathered granite according to claim 1, wherein said step (3) of establishing the underground geology of the main section area of the rare earth ore by crossing-blocking-layering comprises:
according to the characteristics of the peripheral region of the rare earth mine, based on geological database data, partitioning and layering are carried out through a cross-partitioning-layering modeling idea to establish geological profile modeling, wherein the geological profile modeling comprises a trunk profile, a constraint profile and a modeling profile, and a profile graph is made to conform to the underground geological rule by utilizing gravity-magnetic joint inversion;
screening the modules, simultaneously carrying out grid modeling in a blocking, layering and zoning mode, wherein the modules comprise rock masses and non-rock masses, and combining all the rock masses and the non-rock masses to construct a module set;
and establishing a cross constraint profile by taking the building block as a unit, and establishing a modeling profile parallel to the constraint profile under the constraint of the constraint profile.
4. The method of three-dimensional geological formation of regolith rare earth ore of weathered granite according to claim 1, wherein said step (4) of generating a three-dimensional geological model through a formation entity comprises:
(1) constructing a surface model: acquiring digital elevation model data and superposing remote sensing images;
(2) and establishing a three-dimensional geological model.
5. The method of claim 1, wherein the three-dimensional geological model is generated using the subsurface geological model and comprises: and generating a TIN triangular network by utilizing a Delaunay triangular section algorithm to form an underground geological model.
6. The method of three-dimensional geological formation of regolith rare earth ore of weathered layers according to claim 5, wherein said generating of TIN triangulation using Delaunay triangulation profile algorithm, forming a subsurface geological model, comprises:
(1) cutting a geological profile, compiling the cutting profile by determining the type, depth and layout of the cutting geological profile, and drawing a 2/2.5 dimensional map of the cross profile layout and the deep geological structure;
(2) performing gravity-magnetic joint inversion on the three-dimensional graph based on a Delaunay triangular profile algorithm, determining a two-dimensional and three-dimensional corresponding relation mainly by calculating a 2-dimensional profile TIN triangular network, and generating a three-dimensional data point TIN triangular network, wherein the method comprises the following steps of: gridding the high lines by using digital elevation model data, reading by using Surfer software to form point objects, and generating a TIN (triangulated irregular network) by using a Delaunay triangular section algorithm;
(3) superposing the data with the same area and the same size of the remote sensing image and the digital elevation model data in a picture mode to realize data visualization;
(4) and extracting point data with the same attribute of the data structure to form formation point data, and generating the TIN triangulation network by utilizing a Delaunay triangulation algorithm.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116630568A (en) * | 2023-07-24 | 2023-08-22 | 航天宏图信息技术股份有限公司 | Geological three-dimensional model generation method and device based on point, line and surface structures |
| CN117274463A (en) * | 2023-11-10 | 2023-12-22 | 青岛臻图信息技术有限公司 | Real-time sectioning rendering processing method and system for three-dimensional geological model |
| CN117372639A (en) * | 2023-10-10 | 2024-01-09 | 中国地质科学院 | Three-dimensional geological-geophysical modeling method combining sparse diaphysis section with auxiliary surface at any position |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116630568A (en) * | 2023-07-24 | 2023-08-22 | 航天宏图信息技术股份有限公司 | Geological three-dimensional model generation method and device based on point, line and surface structures |
| CN116630568B (en) * | 2023-07-24 | 2023-11-03 | 航天宏图信息技术股份有限公司 | Geological three-dimensional model generation method and device based on point, line and surface structures |
| CN117372639A (en) * | 2023-10-10 | 2024-01-09 | 中国地质科学院 | Three-dimensional geological-geophysical modeling method combining sparse diaphysis section with auxiliary surface at any position |
| CN117372639B (en) * | 2023-10-10 | 2024-03-26 | 中国地质科学院 | Three-dimensional geological-geophysical modeling method combining sparse diaphysis section with auxiliary surface at any position |
| CN117274463A (en) * | 2023-11-10 | 2023-12-22 | 青岛臻图信息技术有限公司 | Real-time sectioning rendering processing method and system for three-dimensional geological model |
| CN117274463B (en) * | 2023-11-10 | 2024-03-26 | 青岛臻图信息技术有限公司 | Real-time sectioning rendering processing method and system for three-dimensional geological model |
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