Three-dimensional integrated characterization method, device, medium and equipment for surface and underground environments

Abstract

The present invention provides a method, device, medium and equipment for three-dimensional integrated characterization of surface and underground environments, including: Step 1, obtaining various types of surface data of a target area, submitting for spatial triangulation to generate a high-density point cloud and a TIN model, and endowing the TIN model with the surface texture of the target area to form a surface real-scene model; Step 2, performing three-dimensional characterization on the formation space and underground space to generate a geological model, a soil pollution model, an underground water flow field and a pollutant diffusion and migration model of the target area; Step 3, performing integrated fusion on the surface real-scene model, the geological model, the soil pollution model, the underground water flow field and the pollutant diffusion and migration model to obtain an integrated model of surface and underground environments, determining the reference plane and spatial reference for the integration of surface and underground environments, and performing data fusion on the three-dimensional integrated model of surface and underground environments to obtain a three-dimensional integrated model of surface and underground environments of the target area.

Description

Technical Background

[0001] The present invention relates to the technical field of geological three-dimensional modeling, and particularly to a method, device, medium and equipment for three-dimensional integrated characterization of surface and underground environments. Background Art

[0003] Currently, the most commonly used three-dimensional characterization methods for complex geological environments are the method based on borehole information, the method based on geological cross-sections, and the traditional modeling method based on multi-source data fusion. These methods all have certain defects:

[0004] (1) The modeling method based on borehole information does not consider the influence of the addition of complex geological structures such as faults and folds on the three-dimensional stratigraphic model, and has a limited scope of application; usually, the number of boreholes obtained within the research scope is very limited, and this method cannot incorporate other information and expert knowledge and experience mastered by the modeler into the modeling workflow, resulting in a large difference between the modeling result and the actual situation and being difficult to correct.

[0005] (2) The key to the modeling method based on geological cross-sections is to find a reasonable matching correspondence between adjacent contour lines to represent the true shape of the geological body. However, the actual geological structure is often very complex, and it is difficult to have a geometrically perfect correspondence between the contour lines of multiple obtained cross-sections. The modeling process is relatively cumbersome, and due to the single data and being limited by the model scale, it is difficult to reflect the actual geological situation.

[0006] (3) Although the traditional method based on multi-source data fusion can make up for the deficiencies of single data, it will inevitably generate certain information conflicts due to different data acquisition channels and data standards, and the difficulty of data fusion is large. At present, no relatively complete method system has been formed.

[0007] In the past, geologists mainly studied the construction of underground geological models, and GIS field scholars mainly studied surface real-scene modeling. No one has integrated the surface real-scene model with underground geological models, underground water flow field models, soil pollutant distribution models, etc. Summary of the Invention

[0008] The present invention provides a method, device, medium and equipment for three-dimensional integrated characterization of surface and underground environments, and its purpose is to achieve the maximum precision of three-dimensional integrated model data fusion of surface and underground environments.

[0009] To achieve the above object, the present invention provides a method for three-dimensional integrated characterization of surface and underground environments, including:

[0010] Step 1: Obtain various types of surface data of the target area, submit for spatial triangulation to generate a high-density point cloud and a TIN model, and assign the surface texture of the target area to the TIN model to form a surface real-scene model;

[0011] Step 2: Conduct three-dimensional characterization of the stratum space and underground space to generate a geological model, a soil pollution model, an underground water flow field, and a pollutant diffusion and migration model of the target area;

[0012] Step 3: Integrate the surface real-scene model, the geological model, the soil pollution model, the underground water flow field, and the pollutant diffusion and migration model to obtain an integrated surface and underground environment model, determine the reference plane and spatial reference for the integrated surface and underground environment, and conduct data integration on the three-dimensional integrated surface and underground environment model to obtain the three-dimensional integrated surface and underground environment model of the target area.

[0013] Among them, Step 1 includes:

[0014] Obtain the surface data of the target area through an unmanned aerial vehicle. The surface data includes oblique images, ground control points arranged, and POS data. Import the obtained surface data into Context Capture, submit for spatial triangulation to generate a high-density point cloud and a TIN model, and map the surface texture of the target area to the TIN model to construct a surface real-scene model.

[0015] Among them, after Step 1, it also includes:

[0016] Repair and reconstruct the deformed parts of the building components in the surface real-scene model;

[0017] Collect the contour lines of the surface real-scene model after repair and reconstruction;

[0018] According to the contour lines, refine and modify the texture of the surface real-scene model after repair and reconstruction through texture mapping.

[0019] Among them, after Step 1, it also includes:

[0020] Extract elevation point values based on the surface data, assign the elevation point values to the TIN model for drawing a topographic profile to obtain a topographic profile;

[0021] Project the geological information onto the topographic profile and draw lithological patterns to obtain the geological profile of the target area.

[0022] Among them, Step 2 includes:

[0023] Based on the obtained borehole data and data of geological section drawings, store them in a table in the order of borehole name, surface coordinates, absolute elevation of the formation roof, absolute elevation of the floor, lithology name, and ground elevation. Generate formation surfaces and geological bodies by performing three-dimensional characterization on the data in the table to obtain a geological model;

[0024] Based on the obtained geophysical exploration parameters, screen the geological models within the range of geophysical exploration parameters;

[0025] Based on the obtained soil sample data, store them in a table in the order of X, Y, roof elevation, floor elevation, pollutant concentration, borehole name, and surface elevation. Obtain a soil pollution model by performing three-dimensional characterization on the spatial distribution of pollutants;

[0026] Perform three-dimensional characterization based on the obtained hydrogeological parameters to obtain an underground water flow field and a pollutant diffusion and migration model.

[0027] Among them, step 3 includes:

[0028] Integrate the surface real-scene model, geological model, soil pollution model, underground water flow field, and pollutant diffusion and migration model through EVS software to obtain an integrated surface and underground environment model of the target area;

[0029] Utilize the elevation surface of the planar data layer of the target area in the topographic map system data, combine with the discrete elevation points of the surface layer of the target area, calculate a three-dimensional elevation surface model through a fitting algorithm, and construct an irregular triangular network to generate a three-dimensional topographic reference surface;

[0030] Determine a spatial reference based on the elevation reference surface. Through format and coordinate conversion, unify all types of models fused by EVS software under the same elevation reference;

[0031] When there are conflicts in the spatial positions of all types of models fused by EVS software with the reference surface, perform secondary calibration and matching on the integrated surface and underground environment, and perform data fusion on the integrated surface and underground environment model to obtain a three-dimensional integrated surface and underground environment model of the target area.

[0032] A three-dimensional integrated characterization device for surface and underground environment, comprising:

[0033] A surface model construction module, used to obtain various types of surface data of the target area, submit spatial triangulation to generate a high-density point cloud and a TIN model, and endow the TIN model with the surface texture of the target area to form a surface real-scene model;

[0034] A processing module, used to repair and reconstruct the deformed parts of the building components in the surface real-scene model and collect contour lines, and refine and modify the texture of the surface real-scene model after repair and reconstruction through texture mapping;

[0035] A drawing module for drawing a geological section of the target area;

[0036] An underground model construction module for three-dimensionally representing the formation space and the underground space to generate a geological model, a soil pollution model, an underground water flow field, and a pollutant diffusion and migration model of the target area;

[0037] A fusion module for integrally fusing a surface real-scene model, a geological model, a soil pollution model, an underground water flow field, and a pollutant diffusion and migration model to obtain an integrated surface and underground environment model, determining a reference plane and a spatial reference for the integrated surface and underground environment, and performing data fusion on the three-dimensional integrated surface and underground environment model to obtain a three-dimensional integrated surface and underground environment model of the target area.

[0038] A computer-readable storage medium for storing a computer program, which, by executing the computer program, is used to implement the above-mentioned method for three-dimensional integrated characterization of the surface and underground environment.

[0039] A device for three-dimensional integrated characterization of the surface and underground environment, which is used to implement the above-mentioned method for three-dimensional integrated characterization of the surface and underground environment, and is characterized by including: a memory and a processor;

[0040] The memory is used for storing a computer program;

[0041] The processor is used for executing the computer program stored in the memory.

[0042] The above solution of the present invention has the following beneficial effects:

[0043] The present invention realizes the maximum precision data fusion of the three-dimensional integrated surface and underground environment model, which can serve fields such as urban planning, land survey, geographical national conditions monitoring, and green mine construction, and has profound and significant significance;

[0044] Using EVS software for three-dimensional geological modeling can truly reflect the geological structure form, structural relationship, and internal property change law of geological bodies; the model can be cut in any form for multi-angle observation; it also has good processing capabilities for pinch-outs, lenses, faults, and karst caves;

[0045] Based on multi-source data, using the method of fusing the surface real-scene model and various underground models for three-dimensional characterization of complex geological environments can clearly reflect the interaction process between the ground and the underground.

[0046] Other beneficial effects of the present invention will be described in detail in the subsequent specific implementation part. Description of the Drawings

[0047] Figure 1Schematic flowchart of an embodiment of the present invention;

[0048] Figure 2 Schematic flowchart of the process for constructing a surface real scene model using ContextCapture and DP - Modeler software in an embodiment of the present invention;

[0049] Figure 3 Schematic flowchart of the process for constructing an underground three - dimensional model using EVS software in an embodiment of the present invention. Detailed implementation manners

[0050] To make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0051] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0052] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a locking connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0053] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0054] The present invention provides a method for three - dimensional integrated characterization of surface and underground environments in view of existing problems.

[0055] As Figure 1 shown, an embodiment of the present invention provides a method for three - dimensional integrated characterization of surface and underground environments, including:

[0056] Step 1: Obtain various surface data of the target area, submit for spatial triangulation to generate a high-density point cloud and a TIN model, and assign the surface texture of the target area to the TIN model to form a surface real-scene model;

[0057] Specifically, the construction process of the surface real-scene model in this embodiment is as Figure 2 shown. By using a drone for fieldwork to obtain 20,000 oblique images of the target area, arranging 100 ground control points, POS (position and orientation system) data, etc., and then importing the obtained various data into Context Capture, submitting for spatial triangulation to generate a high-density point cloud and a TIN model, and assigning the surface texture of the target area to the TIN model, finally forming a surface real-scene model.

[0058] Specifically, after Step 1, it further includes:

[0059] Repair and reconstruct the deformed parts of the building components in the surface real-scene model;

[0060] Specifically, use DP-Modeler software to repair and reconstruct the deformed parts of the buildings in the surface real-scene model formed by Context Capture. The deformed parts include different building components such as building bodies, balconies, parapets, rain covers, railings, colonnades, etc.

[0061] Collect the contour lines of the surface real-scene model after repair and reconstruction;

[0062] According to the contour lines, refine and modify the texture of the surface real-scene model after repair and reconstruction through texture mapping.

[0063] Specifically, comprehensively use image processing tools such as selecting objects, drawing polylines, creating cylinders, creating surfaces, inner offset, copying, cutting, etc. to collect the contour lines;

[0064] Adopt automatic mapping to perform automatic mapping of the texture of the surface real-scene model after repair and reconstruction. If there are occluded parts, use the image switching function or use Photoshop software for texture mapping to refine and modify the texture of the surface real-scene model after repair and reconstruction.

[0065] After Step 1, it further includes drawing a geological section of the target area;

[0066] Specifically, based on geological data such as the strata, lithology, tectonic attitude, and contour lines of the target area, use MAPGIS software to draw a geological section of the target area;

[0067] First, extract the elevation point values from the contour lines and convert the contour line elevation data into discrete point elevation data;

[0068] Then, using the contour lines as the data source, the contour lines are assigned to the TIN model, the topographic profile of the target area is drawn, the geological information is projected into the topographic profile, and the lithological patterns are drawn, so as to obtain the geological profile of the target area.

[0069] Step 2: Perform three-dimensional characterization of the stratum space and underground space to generate the geological model, soil pollution model, groundwater flow field and pollutant diffusion and migration model of the target area, as follows: Figure 3 As shown;

[0070] Based on the acquired drilling data and geological profile data, the data are stored in an EXCEL table in the order of borehole name, surface coordinates, absolute elevation of the top plate of the formation, absolute elevation of the bottom plate, lithology name, and ground elevation. The EXCEL file is converted into a PGF file using the file conversion function of the EVS software. The formations revealed by the drilling are expressed by dividing the sequence to generate GEO and GMF files. The krig_3d_geology module is then used to perform three-dimensional characterization of the data in the table to generate a stratigraphic layer. The plume module is used to generate a geological body, and finally a geological model of the target area is generated.

[0071] Based on the geophysical parameters such as density, resistivity, conductivity, elastic wave velocity, etc. obtained in the target area, the screening function of the EVS software is used to screen out the geological model within the required geophysical parameter range;

[0072] Based on the soil sample data obtained in the target area, the data are stored in an EXCEL table in the order of X, Y, top plate elevation, bottom plate elevation, pollutant concentration, borehole name, and surface elevation. Then, the EXCEL file is converted into an AIDV file using the file conversion function provided by the EVS software. The krig_3d module is used to perform a three-dimensional characterization of the pollution spatial distribution to generate a soil pollution model for the target area.

[0073] Based on the hydrogeological parameters such as groundwater permeability coefficient, water storage coefficient, pumping well flow velocity, diffusion coefficient, etc. obtained in the target area, MODFLOW and MT3DMS (modular three-dimensional solute transport model) were used to establish the groundwater flow field and pollutant diffusion and migration model in the target area.

[0074] It should be noted that the above data used for modeling are all derived from field measurements and tests of the target area.

[0075] Among them, MODFLOW is a standard visualization system for simulating and evaluating three-dimensional groundwater flow and solute transport. This software package consists of three major parts: Modflow (groundwater flow evaluation), Modpath (plane and profile streamline tracer analysis), and MT3D (solute transport evaluation), and has a graphical visual interface function, realizing the transformation between conceptual models and numerical models, with two-dimensional and three-dimensional visualization functions, which are easy to operate.

[0076] MT3DMS is the second generation of MT3D. Among them, MT3D represents the Modular 3-Dimensional Transport Model, and MS represents a program structure that can insert biochemical reaction modules for various pollutant ancestors. It has comprehensive functions and can simulate the processes of convection, dispersion, and diffusion of pollutants in the groundwater flow system under conventional hydrogeological conditions, and can also model the biological and chemical reactions of pollutants during migration.

[0077] Step 3: Integrate the surface real scene model, geological model, soil pollution model, groundwater flow field, and pollutant diffusion and migration model to obtain an integrated model of the surface and underground environment, determine the reference plane and spatial reference of the integrated surface and underground environment, and perform data integration on the three-dimensional integrated model of the surface and underground environment to obtain the three-dimensional integrated model of the surface and underground environment of the target area.

[0078] Specifically, integrate the surface real scene model, geological model, soil pollution model, groundwater flow field, and pollutant diffusion and migration model through EVS software to obtain an integrated model of the surface and underground environment of the target area;

[0079] Making full use of the characteristics of the original data, such as wide sources, multiple types, and multiple formats, to integrate these data, it is necessary to first unify the coordinate system and scale of the data and establish a database of original data. Another purpose of unifying the coordinate system and scale is to facilitate the integration between models. The constructed models can be merged into a database, and the data formats can be integrated into formats such as apdv, dwg, obj, and shp that can be imported by EVS software, serving as the data source and constraint data for subsequent model construction.

[0080] Constrained by geological attributes such as the spatial coordinates, formation lithology, groundwater flow field, and sedimentary environment distribution of the target area, conduct a detailed accuracy and precision analysis and judgment on the original data of the target area collected, processed, and modeled. Utilize the elevation surface of the planar data layer of the target area in the existing 1:500 topographic map system data, combine it with the discrete elevation points on the surface layer of the target area, calculate the three-dimensional elevation surface model through a fitting algorithm, import it into the EVS software, and construct an irregular triangular network based on this to generate the reference plane of the three-dimensional terrain, thereby determining the reference plane for the integrated integration of the surface and underground environments.

[0081] Determine the spatio-temporal reference of all types of models integrated through the EVS software. The spatio-temporal reference refers to the basic reference basis and the starting data for measurement in the time and geographical space dimensions. In the time reference, the Gregorian calendar era should be adopted for the date, and the unified Beijing time should be adopted for the time.

[0082] Determine the spatial reference based on the elevation reference plane. All types of models integrated through the EVS software, etc., through format and coordinate conversion, unify the format and coordinates under the same elevation reference. For example, unify the geodetic reference to the CGCS2000 National Geodetic Coordinate System and the elevation reference to the 1985 National Elevation System, and specifically refer to GB22021 "Basic Technical Regulations for National Geodetic Survey" for implementation.

[0083] When there are conflicts in the spatial positions of all types of models integrated through the EVS software with the reference plane, conduct secondary calibration and matching for the integrated surface and underground environments. Rely on existing technologies and experiences to perform spatial correction and Boolean operations on the integrated surface and underground environments, and conduct data fusion on the integrated surface and underground environment model to obtain the three-dimensional integrated model of the surface and underground environments in the target area, achieving the maximum precision data fusion of the three-dimensional integrated surface and underground model.

[0084] An embodiment of the present invention provides a three-dimensional integrated representation device for surface and underground environments, including:

[0085] A surface model construction module, used to obtain various types of surface data of the target area, submit spatial triangulation to generate high-density point clouds and TIN models, and assign the surface texture of the target area to the TIN model to form a surface real-scene model;

[0086] A processing module, used to repair and reconstruct the deformed parts of the building components in the surface real-scene model and collect contour lines, and refine and modify the texture of the repaired and reconstructed surface real-scene model through texture mapping;

[0087] A drawing module, used to draw the geological cross-section of the target area;

[0088] An underground model construction module, configured to generate a geological model, a soil pollution model, an underground water flow field, and a pollutant diffusion and migration model of a target area through three-dimensional characterization of a formation space and an underground space according to borehole data, geological section data, soil sample data, hydrogeological parameters, and geophysical exploration parameters obtained in the target area;

[0089] A fusion module, configured to integrally fuse a surface real-scene model, a geological model, a soil pollution model, an underground water flow field, and a pollutant diffusion and migration model to obtain a surface and underground environment integrated model of the target area, determine a reference plane and a spatial reference for the integration of the surface and underground environments, and perform data fusion on the surface and underground environment integrated model to obtain a three-dimensional integrated model of the surface and underground environments of the target area.

[0090] An embodiment of the present invention further provides a computer-readable storage medium, configured to store a computer program, and by executing the computer program, implement the above-mentioned method for three-dimensional integrated characterization of the surface and underground environments.

[0091] An embodiment of the present invention further provides a device for three-dimensional integrated characterization of the surface and underground environments, configured to implement the above-mentioned method for three-dimensional integrated characterization of the surface and underground environments, and characterized by including: a memory and a processor; the memory is used for storing a computer program; the processor is used for executing the computer program stored in the memory.

[0092] This embodiment is based on multi-source data fusion technologies such as drone oblique image data, POS data, ground control point data, borehole data, geological sections, soil sample data, hydrogeological data, and physical exploration data, and uses software such as MAPGIS, Context Capture, DP-Modeler, and Earth Volumetric Studio.EVS to integrate complex geological environment models such as surface real-scene models, pollutant distribution models, and underground water flow field models with geological attributes such as spatial coordinates, formation lithology, underground water flow field, and sedimentary environment distribution as constraints to achieve maximum precision in the data fusion of the above-ground and underground three-dimensional integrated models.

[0093] This embodiment uses EVS software to build a three-dimensional geology model. The EVS software adopts a parametric-driven and class-visual programming method, allowing users to customize their own software, thus greatly increasing the flexibility of the software, and can achieve very complex modeling results with a very simple software interface.

[0094] In the embodiment of the present invention, the EVS software is used to build a three-dimensional geological model, which can truly reflect the geological structure form, structural relationship and the change law of the internal properties of geological bodies; the model structure can be cut in any form for multi-angle observation; it also has good processing capabilities for pinch-outs, lens bodies, faults and karst caves; it has the advantages of high efficiency, low cost and flexibility. The realization of the real-scene three-dimensional modeling technology can serve fields such as urban planning, land survey, geographical monitoring, and green mine construction, and has profound and significant significance.

[0095] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle described in the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A three-dimensional integrated characterization method for surface and underground environments, characterized in that, Including: Step 1: Obtain various surface data of the target area, submit for spatial triangulation to generate a high-density point cloud and a TIN model, and map the surface texture of the target area to the TIN model to form a surface real-scene model. Step 2: Conduct three-dimensional characterization of the stratum space and underground space to generate a geological model, soil pollution model, groundwater flow field, and pollutant diffusion and migration model of the target area. Step 3: Integrate the surface real-scene model, geological model, soil pollution model, groundwater flow field, and pollutant diffusion and migration model to obtain an integrated model of the surface and underground environment, determine the reference plane and spatial reference of the integrated surface and underground environment, and perform data integration on the three-dimensional integrated model of the surface and underground environment to obtain a three-dimensional integrated model of the surface and underground environment of the target area.

2. The three-dimensional integrated characterization method of the surface and underground environment according to claim 1, wherein The said Step 1 includes: Obtain the surface data of the target area by using an unmanned aerial vehicle, and the surface data includes oblique images, ground control points arranged, and POS data. Import the obtained surface data into Context Capture, submit for spatial triangulation, and generate a high-density point cloud and a TIN model. Map the surface texture of the target area to the TIN model to construct a surface real-scene model.

3. The three-dimensional integrated characterization method of the surface and underground environment according to claim 1, characterized in that After the said Step 1, it further includes: Repair and reconstruct the deformed parts of the building components in the surface real-scene model. Collect the contour lines of the surface real-scene model after repair and reconstruction. According to the contour lines, refine and modify the texture of the surface real-scene model through texture mapping.

4. The three-dimensional integrated characterization method of surface and underground environments according to claim 1, wherein After the said Step 1, it further includes: Extract elevation point values based on the surface data, assign the elevation point values to the TIN model for drawing a topographic profile to obtain a topographic profile. Project the geological information onto the topographic profile and draw lithological patterns to obtain a geological profile of the target area.

5. The three-dimensional integrated characterization method of the surface and underground environment according to claim 4, characterized in that The said Step 2 includes: Based on the obtained borehole data and the data of the geological profile, store them in a table in the order of borehole name, surface coordinates, absolute elevation of the formation roof, absolute elevation of the floor, lithology name, and ground elevation. Generate formation surfaces and geological bodies through three-dimensional characterization of the data in this table to obtain a geological model. Based on the obtained geophysical exploration parameters, screen the geological models within the range of geophysical exploration parameters. Based on the obtained soil sample data, store them in a table in the order of X, Y, roof elevation, floor elevation, pollutant concentration, borehole name, and surface elevation. Obtain a soil pollution model through three-dimensional characterization of the spatial distribution of pollutants. Conduct three-dimensional characterization based on the obtained hydrogeological parameters to obtain a groundwater flow field and a pollutant diffusion and migration model.

6. The three-dimensional integrated characterization method of surface and underground environments according to claim 1, wherein The said Step 3 includes: Integrate the surface real-scene model, geological model, soil pollution model, groundwater flow field, and pollutant diffusion and migration model through EVS software to obtain an integrated model of the surface and underground environment of the target area. Utilize the elevation surface of the planar data layer of the target area in the topographic map system data, combine with the discrete elevation points of the surface layer of the target area, calculate a three-dimensional elevation surface model through a fitting algorithm, and construct an irregular triangular network to generate a three-dimensional topographic reference plane. Determine the spatial reference based on the elevation datum plane, and through format and coordinate transformation, unify all types of models fused by the EVS software under the same elevation datum plane; When there are conflicts in the spatial positions of all types of models fused by the EVS software with the datum plane, perform secondary calibration and matching on the integration of the surface and underground environments, and conduct data fusion on the integrated model of the surface and underground environments to obtain the three-dimensional integrated model of the surface and underground environments in the target area.

7. A three-dimensional integrated characterization device for surface and subsurface environments, characterized in that, Including: A surface model construction module, which is used to obtain various types of surface data in the target area, submit spatial triangulation to generate a high-density point cloud and a TIN model, and assign the surface texture of the target area to the TIN model to form a surface real-scene model; A processing module, which is used to repair and reconstruct the deformed parts of the building components in the surface real-scene model and collect contour lines, and refine and modify the texture of the surface real-scene model after repair and reconstruction through texture mapping; A drawing module, which is used to draw a geological cross-section of the target area; An underground model construction module, which is used to perform three-dimensional characterization of the formation space and underground space based on the borehole data, geological cross-section data, soil sample data, and hydrogeological parameters obtained in the target area to generate a geological model, a soil pollution model, an underground water flow field, and a pollutant diffusion and migration model of the target area; A fusion module, which is used to integrally fuse the surface real-scene model, geological model, soil pollution model, underground water flow field, and pollutant diffusion and migration model of the target area to obtain an integrated model of the surface and underground environments in the target area, determine the datum plane and spatial reference of the integration of the surface and underground environments, and conduct data fusion on the integrated model of the surface and underground environments to obtain a three-dimensional integrated model of the surface and underground environments in the target area.

8. A computer-readable storage medium for storing a computer program, characterized in that, By executing the computer program, it is used to implement the three-dimensional integrated characterization method of the surface and underground environments described in any one of claims 1-6 above.

9. A three-dimensional integrated characterization device for the surface and underground environment, which is used to implement the method for three-dimensional integrated characterization of the surface and underground environment described in any one of the above claims 1-6, and is characterized in that, Including: A memory and a processor; The memory is used to store the computer program; The processor is used to execute the computer program stored in the memory.

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