A geometric modeling method of faults for smart mines

Through the fault geometric modeling method for smart mines, independent fault grids and data storage formats are adopted to solve the limitations of fault data storage and display in the existing technology, the modeling efficiency and data detail are improved, and accurate data support is provided for smart mine simulation.

CN119378041BActive Publication Date: 2025-04-11PEKING UNIV NANCHANG INNOVATION RES INST +2
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Patent Information

Application Number
CN202411921584.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-04-11
Estimated Expiration
2044-12-25

AI Technical Summary

Technical Problem

The existing technology cannot effectively store and display the geometric information of faults, resulting in certain limitations in the application of smart mine simulation.

Method used

Through the steps of data preparation, stratigraphic modeling, stratigraphic interface reconstruction, extraction of stratigraphic interfaces and adding fault units, a fault geometric modeling method is provided for smart mines. It adopts an independent fault grid, which eliminates the complex geometric calculation process and stores fault data in grid cells.

Benefits of technology

It realizes effective storage and display of fault data, improves modeling efficiency and data detail in smart mine simulation, provides more detailed geological data storage for mine digital models, and provides accurate data support for smart mine simulation.

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Abstract

A geometric modeling method for faults for smart mines belongs to the field of data modeling and is characterized by: surveying to obtain the position data and physical and mechanical property data of the fault; extracting the mid-surface thickness data in the GIS data; then reconstructing the stratum interface; establishing the stratum by extracting the stratum interface: and finally adding the fault unit. Based on the existing stratum geometry generation method, the fault data is integrated into the geometric model to solve the problem of lack of storage and display of fault data in the prior art. Compared with the prior art, it not only contains the spatial position information of the fault, but also contains the attribute information of the fault at different spatial positions. Since it is geometrically unrelated, it saves the complex geometric calculation process and significantly improves the modeling efficiency. The stored fault data is used as the basis for grid division and grid attribute assignment, which can provide more detailed geological data storage for the digital model of the mine and provide accurate data support for the simulation of smart mines.
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Description

Technical Field

[0001] The present invention belongs to the field of data modeling, and in particular relates to a geometric modeling method of faults for smart mines. Background Art

[0002] As an important part of geological structure, the structural characteristics of faults have an important impact on mineralization and the occurrence of ore deposits. At the same time, for transparent geology and smart mine simulation scenes, faults are also of great significance for analyzing their structure and describing their movement laws.

[0003] GIS mapping data discretely represents the information of different strata. The main method used is to use a mid-surface with thickness attributes to represent a section of strata. The position of the mid-surface represents the average position of the upper and lower floors of the strata, and a certain thickness is extended above and below to store the geometric information of the strata. The interpolation method is used to determine the stratum interface between different strata, but the current GIS data cannot store the geometric information of the fault, which leads to certain limitations of the current data in the application of smart mine simulation. Summary of the invention

[0004] The present invention aims to solve the above-mentioned problem and provide a geometric modeling method of faults for smart mines that can store and display fault data.

[0005] In a first aspect, the present invention provides a geometric modeling method for faults in a smart mine, comprising:

[0006] 1) Data preparation: Survey to obtain the location data and physical and mechanical property data of the fault;

[0007] 2) Stratigraphic modeling: Extract the mid-surface thickness data from the GIS data, offset the mid-surface nodes by half the thickness, and form the upper and lower boundaries. Since there is no geometric topological relationship between the stratigraphic data, there will be partial overlap or gaps between adjacent stratigraphic interfaces. It is necessary to further form accurate stratigraphic interfaces and establish geometric topological relationships between stratigraphic layers.

[0008] 3) Stratigraphic interface reconstruction: Establish an area on the horizontal plane so that the projections of all strata in the GIS data on the horizontal plane fall within the area, and arrange a uniform Delaunay triangulation grid in the area; since the grids and nodes of the stratigraphic interface offset in the previous step do not correspond one to one in the vertical direction, it is necessary to interpolate the stratigraphic interface at the corresponding position according to the plane coordinates of the newly created grid nodes. This process will establish a new stratigraphic interface with a uniform control point grid and ensure alignment in the vertical direction. The new stratigraphic interface still does not have the topological structure of the strata. The next step is to determine the stratigraphic interface based on the new stratigraphic interface so that the geometric boundaries of the upper and lower adjacent strata form a common node relationship.

[0009] 4) Extracting the stratigraphic interface and establishing the stratigraphic layer: For each grid node coordinate arranged on the horizontal plane, the stratigraphic interface is interpolated from top to bottom; in all vertically adjacent stratigraphic layers, the bottom plate of the upper stratigraphic layer and the top plate of the lower stratigraphic layer use common nodes to form the final stratigraphic interface; finally, the interfaces belonging to the same stratigraphic layer are connected, and each stratigraphic layer is represented by a set of triangular prisms;

[0010] 5) Add fault units: Generate a uniform triangular grid inward according to the geometric information of the fault; after the generation, assign the distance between faults and the interaction information between faults to the surface grid unit according to the survey data, and the interaction information between faults includes the slip direction and dislocation distance information on both sides of the fault; this information characterizes whether the fault belongs to a normal fault, a reverse fault or a strike-slip fault; the grid data contains node information and triangular unit information, and each triangular grid is connected by three nodes; the fault data is stored in two storage formats, one is stored on each node, that is, the assigned attributes are unique to a certain node, and the geometric parameters are assigned to the node; the other is stored on the triangular grid, that is, the assigned attributes are unique to a certain triangular grid, and the physical parameters are assigned to the grid.

[0011] Furthermore, in the geometric modeling method of faults for smart mines described in the present invention, the determination of the curved surface of the fault includes the following types of data: a plane formed by the coordinates of three section points; a plane with known fault attitude information and a certain point passed through; and a curved surface formed by fault lines and fault dip data.

[0012] Furthermore, in the geometric modeling method for faults in smart mines described in the present invention, the surface mesh unit is independent of the volume unit of the entire solution domain, and the use of independent fault meshes eliminates the complex geometric calculation process in geometric modeling, and does not require a strict topological structure. This method establishes a data storage format for faults in stratum geometry, which will provide basic data for stratum mesh division and simulation calculation.

[0013] Furthermore, in the geometric modeling method of faults for smart mines described in the present invention, the data stored in the surface grid includes but is not limited to: geometric parameters: thickness, normal direction; physical property parameters: Young's modulus, Poisson's ratio, cohesion, internal friction angle, permeability coefficient.

[0014] In a second aspect, the present invention provides a geometric modeling system for faults in smart mines, including an acquisition module, a modeling module, a stratum construction module, and a fault data adding module;

[0015] The acquisition module is used to survey and obtain the position data and physical and mechanical property data of the fault;

[0016] The modeling module is used to extract the mid-surface thickness data in the GIS data, offset the mid-surface nodes, and the offset is half of the thickness to form the upper boundary and the lower boundary; since there is no geometric topological relationship between the stratum data, there will be partial overlap or vacancies between adjacent stratum interfaces, and it is necessary to further form an accurate stratum interface and establish a geometric topological relationship between the strata;

[0017] The stratigraphic construction module is used to establish an area on a horizontal plane so that the projections of all stratigraphic layers in the GIS data on the horizontal plane fall within the area, and a uniform Delaunay triangulation grid is arranged in the area; for each grid node coordinate arranged on the horizontal plane, the stratigraphic interface is interpolated in a top-to-bottom order; in all vertically adjacent stratigraphic layers, the bottom plate of the upper stratigraphic layer and the top plate of the lower stratigraphic layer use common nodes to form the final stratigraphic interface; finally, the interfaces belonging to the same stratigraphic layer are connected, and each stratigraphic layer is represented by a triangular prism set;

[0018] The fault data adding module is used to generate a uniform triangular grid inward according to the geometric information of the fault; after the generation is completed, the distance between the faults and the interaction information between the faults are assigned to the surface grid unit according to the survey data, and the interaction information between the faults includes the slip direction and the dislocation distance information on both sides of the fault; this information characterizes the category of the fault as a normal fault, a reverse fault or a strike-slip fault; the grid data includes node information and triangular unit information, and each triangular grid is connected by three nodes; the fault data is stored in two storage formats, one is stored on each node, that is, the assigned attributes are unique to a certain node, and the geometric parameters are assigned to the node; the other is stored on the triangular grid, that is, the assigned attributes are unique to a certain triangular grid, and the physical property parameters are assigned to the grid.

[0019] Furthermore, in the geometric modeling system of faults for smart mines described in the present invention, the determination of the curved surface of the fault includes the following types of data: a plane formed by the coordinates of three section points; a plane with known fault attitude information and a point passing through it; and a curved surface formed by fault lines and fault dip data.

[0020] Furthermore, in the geometric modeling system for faults in smart mines of the present invention, the surface mesh unit is independent of the volume unit of the entire solution domain, and the use of independent fault meshes eliminates the complex geometric calculation process in geometric modeling, and does not require a strict topological structure. This method is used to establish a data storage format for faults in stratum geometry, which will provide basic data for stratum mesh division and simulation calculation.

[0021] Furthermore, in the geometric modeling system for faults in smart mines described in the present invention, the data stored in the surface grid includes but is not limited to: geometric parameters: thickness, normal direction; physical property parameters: Young's modulus, Poisson's ratio, cohesion, internal friction angle, permeability coefficient.

[0022] In a third aspect, the present invention provides a geometric modeling device for faults for smart mines, comprising a memory and a processor; the memory is used to store a computer program; the processor is used to implement the geometric modeling method for faults for smart mines as described in the first aspect above when executing the computer program.

[0023] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the geometric modeling method of faults for smart mines as described in the first aspect above is implemented.

[0024] The geometric modeling method of faults for smart mines described in the present invention is based on the existing stratigraphic geometry generation method and integrates fault data into the geometric model, so as to solve the problem of lack of storage and display of fault data in the prior art. Compared with the prior art, it not only includes the spatial position information of the fault, but also includes the attribute information of the fault at different spatial positions. Since they are geometrically unrelated, the complex geometric calculation process is omitted, which significantly improves the modeling efficiency. The stored fault data is used as the basis for grid division and grid attribute assignment, which can provide more detailed geological data storage for the digital model of the mine and provide accurate data support for the simulation of smart mines. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic flow chart of a geometric modeling method for faults in smart mines according to an embodiment of the present invention;

[0026] Figure 2 Schematic diagram of the formation interface interpolation algorithm described in an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The geometric modeling method of faults for smart mines according to the present invention is described in detail below through the accompanying drawings and embodiments.

[0028] Embodiment 1

[0029] This embodiment discloses a geometric modeling method for faults in smart mines. Figure 1 As shown, the following steps are included:

[0030] 1) Data preparation: Survey to obtain the location data and physical and mechanical property data of the fault; GIS data contains the location and thickness information of the strata. Each stratum is composed of a triangulated surface with thickness attributes. The data of different strata are independent of each other and there is no geometric topological relationship. The mid-surface data is stored in plane geographic coordinates and elevation coordinates, indicating the spatial position of the mid-surface of a stratum. Each point data stores the thickness of the stratum at the geographic coordinates of the point;

[0031] 2) Stratigraphic modeling: Extract the mid-surface thickness data from the GIS data, offset the mid-surface nodes by half the thickness, and form the upper and lower boundaries. Since there is no geometric topological relationship between the stratigraphic data, there will be partial overlap or gaps between adjacent stratigraphic interfaces. It is necessary to further form accurate stratigraphic interfaces and establish geometric topological relationships between stratigraphic layers.

[0032] 3) Stratigraphic interface reconstruction: Establish an area on the horizontal plane so that the projections of all strata in the GIS data on the horizontal plane fall within the area, and arrange a uniform Delaunay triangulation grid in the area; since the grids and nodes of the stratigraphic interface offset in the previous step do not correspond one to one in the vertical direction, it is necessary to interpolate the stratigraphic interface at the corresponding position according to the plane coordinates of the newly created grid nodes, such as Figure 2 As shown in Figure 1, this process will establish a new stratigraphic interface with a uniform grid of control points and ensure vertical alignment. The new stratigraphic interface still does not have the topological structure of the strata. The next step is to determine the stratigraphic interface based on the new stratigraphic interface so that the geometric boundaries of the upper and lower adjacent strata form a common node relationship.

[0033] 4) Extracting the stratigraphic interface and establishing the stratigraphic layer: For each grid node coordinate arranged on the horizontal plane, the stratigraphic interface is interpolated from top to bottom; in all vertically adjacent stratigraphic layers, the bottom plate of the upper stratigraphic layer and the top plate of the lower stratigraphic layer use common nodes to form the final stratigraphic interface; finally, the interfaces belonging to the same stratigraphic layer are connected, and each stratigraphic layer is represented by a set of triangular prisms;

[0034] 5) Add fault units: Generate a uniform triangular grid inward according to the geometric information of the fault; after the generation, assign the distance between faults and the interaction information between faults to the surface grid unit according to the survey data, and the interaction information between faults includes the slip direction and dislocation distance information on both sides of the fault; this information characterizes whether the fault belongs to a normal fault, a reverse fault or a strike-slip fault; the grid data contains node information and triangular unit information, and each triangular grid is connected by three nodes; the fault data is stored in two storage formats, one is stored on each node, that is, the assigned attributes are unique to a certain node, and the geometric parameters are assigned to the node; the other is stored on the triangular grid, that is, the assigned attributes are unique to a certain triangular grid, and the physical parameters are assigned to the grid.

[0035] like Figure 2 As shown, in the embodiment of the present disclosure, firstly, the mid-surface of the stratum is offset according to the GIS data to obtain the upper interface and the lower interface of the two strata; Figure 2 (a) shows the boundary of the mid-plane offset of the stratum. An area that can contain the horizontal projection range of the four stratum interfaces is established on the horizontal plane, and a uniform Delaunay triangulation grid is arranged; Figure 2 (b) in the figure is a schematic diagram of the Delaunay triangulation grid layout. Draw a straight line perpendicular to the horizontal plane for each point in the grid, and search for the stratum interface that the straight line passes through from top to bottom. The intersection points of each stratum interface that the straight line passes through are calculated and used as data points on the straight line. The data points store the top and bottom interface information of the stratum to which the straight line belongs. Figure 2 (c) in the figure is a schematic diagram of the reconstruction of the stratum interface. Since the stratum interface is made by paired offset, the new interface point is calculated by averaging the elevation of the second point on the straight line (the bottom plate of the first stratum) and the point after it (the top plate of the second stratum). This point is the boundary point between the first stratum and the second stratum. This method can be used to obtain the point distribution on the interface of all strata. Figure 2 (d) in the figure is a schematic diagram of the interpolation points of the stratum interface. The interpolated points are connected by grids to form the stratum interface; Figure 2 (e) in the figure is a schematic diagram of connecting interpolation points to form a stratigraphic interface. According to the boundary range of the stratigraphic interface, the boundaries around the stratum are connected up and down to form the boundary of the lateral side of the stratum. This step establishes a complete stratigraphic interface for each stratum and forms a topological structure between the stratigraphic geometries; Figure 2 (f) in the figure is a schematic diagram of the formation of the stratigraphic structure. Finally, the fault geometry is added according to the survey data and the fault physical property parameters are assigned to the fault grid unit. Figure 2 (g) in the figure is a schematic diagram of adding fault data.

[0036] In the disclosed embodiment, the determination of the curved surface of the fault includes the following types of data: a plane formed by the coordinates of three cross-section points; a plane with known fault attitude information and a point passing through; a curved surface formed by fault lines and fault dip data.

[0037] In the disclosed embodiment, the surface mesh unit is independent of the volume unit of the entire solution domain; the data stored in the surface mesh includes: geometric parameters: thickness, normal direction; physical parameters: Young's modulus, Poisson's ratio, cohesion, internal friction angle, permeability coefficient.

[0038] The GIS modeling data improved by the geometric modeling method for faults for smart mines described in this embodiment not only includes the spatial position information of the fault, but also includes the attribute information of the fault at different spatial positions. Since they are not geometrically related, the complex geometric calculation process is omitted. The fault information is mainly reflected in the grid division and grid attribute configuration. In specific applications, the grid near the fault can be encrypted according to the simulation requirements. When using volume grids to characterize faults, smaller stiffness and strength parameters can be given to the fault units according to the width of the fault to characterize the fault properties. At the same time, in the fluid seepage simulation, different permeabilities can be given according to the water conductivity of different positions of the fault, so as to solve the simulation analysis of the complex geological model of the mine.

[0039] Embodiment 2

[0040] This embodiment discloses a fault geometry modeling system for smart mines, including a collection module, a modeling module, a stratum construction module, and a fault data adding module;

[0041] The acquisition module is used to survey and obtain the position data and physical and mechanical property data of the fault;

[0042] The modeling module is used to extract the mid-surface thickness data in the GIS data, offset the mid-surface nodes, and the offset is half of the thickness to form the upper boundary and the lower boundary; since there is no geometric topological relationship between the stratum data, there will be partial overlap or vacancies between adjacent stratum interfaces, and it is necessary to further form an accurate stratum interface and establish a geometric topological relationship between the strata;

[0043] The stratigraphic construction module is used to establish an area on a horizontal plane so that the projections of all stratigraphic layers in the GIS data on the horizontal plane fall within the area, and a uniform Delaunay triangulation grid is arranged in the area; for each grid node coordinate arranged on the horizontal plane, the stratigraphic interface is interpolated in a top-to-bottom order; in all vertically adjacent stratigraphic layers, the bottom plate of the upper stratigraphic layer and the top plate of the lower stratigraphic layer use common nodes to form the final stratigraphic interface; finally, the interfaces belonging to the same stratigraphic layer are connected, and each stratigraphic layer is represented by a triangular prism set;

[0044] The fault data adding module is used to generate a uniform triangular grid inward according to the geometric information of the fault; after the generation is completed, the distance between the faults and the interaction information between the faults are assigned to the surface grid unit according to the survey data, and the interaction information between the faults includes the slip direction and the dislocation distance information on both sides of the fault; this information characterizes the category of the fault as a normal fault, a reverse fault or a strike-slip fault; the grid data includes node information and triangular unit information, and each triangular grid is connected by three nodes; the fault data is stored in two storage formats, one is stored on each node, that is, the assigned attributes are unique to a certain node, and the geometric parameters are assigned to the node; the other is stored on the triangular grid, that is, the assigned attributes are unique to a certain triangular grid, and the physical property parameters are assigned to the grid.

[0045] In the disclosed embodiment, the determination of the curved surface of the fault includes the following types of data: a plane formed by the coordinates of three cross-section points; a plane with known fault attitude information and a point passing through; a curved surface formed by fault lines and fault dip data.

[0046] In the disclosed embodiment, the surface mesh unit is independent of the volume unit of the entire solution domain; the data stored in the surface mesh includes but is not limited to: geometric parameters: thickness, normal direction; physical parameters: Young's modulus, Poisson's ratio, cohesion, internal friction angle, permeability coefficient.

[0047] The process of implementing the geometric modeling system for faults in smart mines described in this embodiment is the same as the geometric modeling method for faults in smart mines described in the aforementioned embodiment 1, and will not be repeated here.

[0048] Embodiment 3

[0049] The present embodiment discloses a geometric modeling device for faults for smart mines, including a memory and a processor; the memory is used to store a computer program; the processor is used to implement the geometric modeling method for faults for smart mines as described in the aforementioned embodiment 1 when executing the computer program. The specific modeling method steps are the same as those in the aforementioned embodiment 1 and will not be repeated here.

[0050] Embodiment 4

[0051] This embodiment discloses a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the geometric modeling method of faults for smart mines as described in the aforementioned embodiment 1 is implemented. The specific modeling method steps are the same as those in the aforementioned embodiment 1 and are not repeated here.

[0052] The computer described in the embodiment of the present application may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. The computer-readable storage medium may be any available medium that a computer can read or a data storage device such as a server or a data center that includes one or more available media integrations. The available medium may be a magnetic medium, (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital versatile disc (DVD)) or a semiconductor medium (e.g., a solid-state drive (SSD)), etc. The software formed by the computer storage code may be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, and other mature storage media in the art.

[0053] Each functional module in each embodiment of the present application can be integrated into a processing unit or module, or each module can exist physically separately, or two or more modules can be integrated into one unit or module. In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When software is used for implementation, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part.

[0054] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A geometric modeling method for faults in smart mines, characterized in that include: 1) Data preparation: Survey to obtain the location data and physical and mechanical property data of the fault; 2) Stratigraphic modeling: extract the mid-surface thickness data from the GIS data, offset the mid-surface nodes by half the thickness, and form the upper and lower boundaries; 3) Stratigraphic interface reconstruction: Establish an area on the horizontal plane so that the projections of all strata in the GIS data on the horizontal plane fall within the area, and a uniform Delaunay triangulation grid is arranged within the area; 4) Extracting the stratigraphic interface and establishing the stratigraphic layer: For each grid node coordinate arranged on the horizontal plane, the stratigraphic interface is interpolated from top to bottom; in all vertically adjacent stratigraphic layers, the bottom plate of the upper stratigraphic layer and the top plate of the lower stratigraphic layer use common nodes to form the final stratigraphic interface; finally, the interfaces belonging to the same stratigraphic layer are connected, and each stratigraphic layer is represented by a set of triangular prisms; 5) Add fault units: Generate a uniform triangular mesh inward according to the geometric information of the fault; after the generation, assign the distance between faults and the interaction information between faults to the surface mesh unit according to the survey data; the interaction information between faults includes the slip direction and dislocation distance information on both sides of the fault; the mesh data contains node information and triangular unit information, and each triangular mesh is connected by three nodes; the fault data is stored in two storage formats, one is stored on each node, that is, the assigned attributes are unique to a certain node, and the geometric parameters are assigned to the node; the other is stored on the triangular mesh, that is, the assigned attributes are unique to a certain triangular mesh, and the physical parameters are assigned to the mesh.

2. The geometric modeling method of faults for smart mines according to claim 1 is characterized by: The determination of the curved surface of the fault includes the following types of data: a plane formed by the coordinates of three cross-section points; a plane with known fault attitude information and a point passing through; and a curved surface formed by fault line and fault dip data.

3. The geometric modeling method of faults for smart mines according to claim 1 or 2, characterized in that: The surface mesh elements are independent of the volume elements of the entire solution domain.

4. The geometric modeling method of faults for smart mines according to claim 3 is characterized by: The data stored in the surface grid include but are not limited to: geometric parameters: thickness, normal direction; physical parameters: Young's modulus, Poisson's ratio, cohesion, internal friction angle, permeability coefficient.

5. A geometric modeling system for faults in smart mines, characterized by: It includes acquisition module, modeling module, formation construction module and fault data adding module; The acquisition module is used to survey and obtain the position data and physical and mechanical property data of the fault; The modeling module is used to extract the mid-surface thickness data in the GIS data, offset the mid-surface nodes, and the offset amount is half of the thickness to form the upper boundary and the lower boundary; The stratigraphic construction module is used to establish an area on a horizontal plane so that the projections of all stratigraphic layers in the GIS data on the horizontal plane fall within the area, and a uniform Delaunay triangulation grid is arranged in the area; for each grid node coordinate arranged on the horizontal plane, the stratigraphic interface is interpolated in a top-to-bottom order; in all vertically adjacent stratigraphic layers, the bottom plate of the upper stratigraphic layer and the top plate of the lower stratigraphic layer use common nodes to form the final stratigraphic interface; finally, the interfaces belonging to the same stratigraphic layer are connected, and each stratigraphic layer is represented by a triangular prism set; The fault data adding module is used to generate a uniform triangular mesh inward according to the geometric information of the fault; after the generation is completed, the distance between the faults and the interaction information between the faults are assigned to the surface mesh unit according to the survey data; the interaction information between the faults includes the slip direction and dislocation distance information on both sides of the fault; the mesh data includes node information and triangular unit information, and each triangular mesh is connected by three nodes; the fault data is stored in two storage formats, one is stored on each node, that is, the assigned attributes are unique to a certain node, and the geometric parameters are assigned to the node; the other is stored on the triangular mesh, that is, the assigned attributes are unique to a certain triangular mesh, and the physical property parameters are assigned to the mesh.

6. The geometric modeling system for faults in smart mines according to claim 5, characterized in that: The determination of the curved surface of the fault includes the following types of data: a plane formed by the coordinates of three cross-section points; a plane with known fault attitude information and a point passing through; and a curved surface formed by fault line and fault dip data.

7. The geometric modeling system for faults in smart mines according to claim 5 or 6, characterized in that: The surface mesh elements are independent of the volume elements of the entire solution domain.

8. The fault geometric modeling system for smart mines according to claim 7, characterized in that: The data stored in the surface grid include but are not limited to: geometric parameters: thickness, normal direction; physical parameters: Young's modulus, Poisson's ratio, cohesion, internal friction angle, permeability coefficient.

9. A geometric modeling device for faults in smart mines, characterized by: It comprises a memory and a processor; the memory is used to store a computer program; the processor is used to implement the geometric modeling method of faults for smart mines as described in any one of claims 1 to 4 when executing the computer program.

10. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by a processor, the geometric modeling method of faults for smart mines as described in any one of claims 1 to 4 is implemented.

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