A water level surface data and geological data fusion method

Abstract

The technical scheme of the present application relates to the technical field of groundwater information management, and particularly relates to a water level surface data and geological data fusion method, which comprises the following steps: establishing a geological structure model and performing grid division; obtaining groundwater level contour line data and / or surveying drilling hole water measurement data to establish a water level surface model; importing the water level surface model into the grid-divided geological structure model; and respectively exporting IFC data of the water level surface model and IFC data of the grid-divided geological structure model to be superimposed and displayed in a visual interface.

Description

Technical Field

[0001] This invention belongs to the field of groundwater information management technology, specifically relating to a method for fusing water level data and geological data. Background Technology

[0002] Obtaining three-dimensional data of complex geological structures and integrating them into hydrogeological models is a prerequisite for studying hydraulic dynamic processes at different scales. Most existing specialized software for simulating groundwater employs structured grids. Integrating groundwater data from different sources into models of different geological structures often results in highly complex subsequent processing steps.

[0003] Prior art application number 202111237773.8 discloses a method for constructing a three-dimensional visualized dynamic monitoring structural model of groundwater resources. This method involves installing a water level and quality monitoring system in observation wells, collecting hydrological data on the top and bottom elevations of each rock stratum and real-time water levels in the study area based on spatial coordinates, and inputting this data into a hydrogeological basic data management system that includes a hydrogeological spatial and attribute basic data management module and a data query and analysis module. The method utilizes FEFLOW software to create a three-dimensional hydrogeological structural model that can display water level changes and visualize cuts. Prior art application number 202010361033.4 discloses a four-dimensional geological modeling method and system that couples geological and groundwater models. By modeling a 3D geological body from borehole data, the constructed TIN surface is used to enclose adjacent strata to form a geological body, thus establishing a 3D geological model. Unsteady groundwater movement is constructed using dynamic equations. Using water level elevation data as a background grid, a discrete grid is obtained where the grid cell size varies with the hydraulic gradient. The calculation parameters for unsteady groundwater movement are assigned to the grid nodes to establish a dynamic 3D groundwater model. By coupling the two models, a 4D model incorporating the groundwater model is visualized. However, existing groundwater level models dynamically simulate groundwater level changes using numerical methods, failing to fully utilize measured data of varying scales. Summary of the Invention

[0004] To address the above technical problems, this invention proposes a method for fusing water level data and geological data, comprising:

[0005] The steps for establishing a geological structure model and performing mesh generation;

[0006] The steps for obtaining groundwater level contour data and / or exploration borehole water measurement data to establish a water level model;

[0007] Import the water level model into the meshed geological structure model;

[0008] The IFC data of the water level model and the IFC data of the gridded geological structure model are exported and overlaid in the visualization interface.

[0009] The beneficial technical effect of this invention is that it provides accurate and reliable references for geological conditions using measured groundwater level data of different scales, and can be used on different commercial geological data visualization platforms, reducing the complexity of subsequent model import / export and calculation processes. Attached Figure Description

[0010] Figure 1 Flowcharts of some implementation methods;

[0011] Figure 2 Flowcharts of some implementation methods;

[0012] Figure 3 : Schematic diagrams of some product implementation methods;

[0013] Figure 4 Schematic diagram of the water table model;

[0014] Figure 5 Schematic diagram of a perched water layer model;

[0015] Figure 6 Schematic diagram of a confined aquifer model;

[0016] Figure 7 A schematic diagram showing the superimposed display of the unconfined aquifer model, the perched aquifer model, and the confined aquifer model. Detailed Implementation

[0017] The following embodiments further illustrate the content of the present invention, but should not be construed as limiting the present invention. Any modifications or substitutions made to the methods, steps, or conditions of the present invention without departing from the spirit and essence of the invention are within the scope of the present invention.

[0018] Some implementation methods for fusing water level data and geological data include Figure 1 The steps in:

[0019] The steps for establishing a geological structure model and performing mesh generation;

[0020] The steps for obtaining groundwater level contour data and / or exploration borehole water measurement data to establish a water level model;

[0021] Import the water level model into the meshed geological structure model;

[0022] The IFC data of the water level model and the IFC data of the gridded geological structure model are exported and overlaid in the visualization interface.

[0023] In some specific implementations, the geological structure model includes a fault model, a cross-section model, and a water level model, wherein the water level model includes a phreatic water model, a perched water model, and a confined water model.

[0024] In some specific implementations, the water level model includes stratigraphic aggregate attribute information data and stratigraphic color information data. The stratigraphic aggregate attribute information includes stratigraphic attribute information, parameter information when importing discrete points, local resmoothing information, and stratigraphic volume information.

[0025] The stratigraphic attribute information includes: number of stratigraphic planes, transparency, size of stratigraphic discrete points, stratigraphic type, and generation method;

[0026] The parameter information when importing discrete points includes: invalid z-value information;

[0027] The local resmoothing information includes: displaying local information and activating local smoothing information;

[0028] The stratigraphic information includes: gradient information, gradient color setting information, and boundary line drawing information.

[0029] In some specific implementations, when different water level models are identified, the system automatically switches to the corresponding formation set attribute information.

[0030] When a diving model is identified, the stratigraphic ensemble attribute information includes stratigraphic attribute information, bedding plane type and generation method, sequence settings, smoothing settings, correction data settings, stratigraphic dip information, and advanced information;

[0031] The stratigraphic attribute information includes: stratigraphic name, and whether it is used;

[0032] The layer type and generation method include: scope of application;

[0033] The stratigraphic sequence setting information includes: stratigraphic subdivision method and the number of subdivisions;

[0034] The smoothing settings include: smoothing method;

[0035] The calibration data settings include: effective distance;

[0036] The formation dip information includes: maximum value, minimum value, and average value;

[0037] The advanced information includes: global level factors and extrapolated level factors.

[0038] When a perched water model is identified, the stratigraphic set attribute information includes stratigraphic attribute information, bedding plane type and generation method, sequence setting information, smoothing setting information, correction data setting information, stratigraphic thickness calculation setting information, stratigraphic dip angle information, and advanced information;

[0039] The stratigraphic attribute information includes: stratigraphic name, and whether it is used;

[0040] The layer type and generation method include: stratigraphic type, generation method, and scope of influence;

[0041] The stratigraphic sequence setting information includes: stratigraphic subdivision method and the number of subdivisions;

[0042] The smoothing settings include: smoothing method;

[0043] The calibration data settings include: effective distance;

[0044] The formation thickness calculation settings include: maximum value, minimum value, and average value;

[0045] The formation dip information includes: maximum value, minimum value, and average value;

[0046] The advanced information includes: global level factors and extrapolated level factors.

[0047] When a confined water model is identified, the formation aggregate attribute information includes formation attribute information, bedding plane type and generation method, sequence setting information, smoothing setting information, correction data setting information, formation dip information, and advanced information;

[0048] The stratigraphic attribute information includes: stratigraphic name, and whether it is used;

[0049] The layer type and generation method include: stratigraphic type, generation method, and scope of influence;

[0050] The stratigraphic sequence setting information includes: stratigraphic subdivision method and the number of subdivisions;

[0051] The smoothing settings include: smoothing method;

[0052] The calibration data settings include: effective distance;

[0053] The formation dip information includes: maximum value, minimum value, and average value;

[0054] The advanced information includes: global level factors and extrapolated level factors.

[0055] Some specific implementation methods, in the specific steps of establishing the water level model, also include the step of establishing the stratigraphic set:

[0056] Step 1: Create multiple initial stratigraphic sets and configure their properties. Specifically, this includes setting stratigraphic set properties and stratigraphic color, setting the stratigraphic discrete point size to 5 in the stratigraphic set property information, setting the generation method to minimum curvature, and displaying the local area in the local resmoothing settings.

[0057] Step 2: Name the multiple initial models of the formation sets sequentially as unconfined water, perched water, and confined water to represent each formation as the unconfined initial model, perched water initial model, and confined water initial model, respectively. Then configure the formation attribute information in the unconfined initial model, perched water initial model, and confined water initial model respectively.

[0058] Step 3: When configuring the initial model of the phreatic layer, the stratum name information will be automatically displayed as phreatic. After checking whether to use the information, the attribute bar will switch to the stratum set attribute information related to the phreatic layer model, and the participating bedding plane and stratum body will be generated. Then, set the scope of action to the entire work area, the stratum subdivision method to equal scale, the number of subdivision layers to 10, the effective distance information to 2, the global horizontal factor and the extrapolation horizontal factor to 0.5, and the rest to the initial settings. To improve the accuracy of the initial model of the phreatic layer, you can continue to configure the stratum dip angle information.

[0059] When configuring the initial model of the perched layer, the stratum name information will be automatically displayed as perched. After checking whether to use the information, the attribute bar will switch to the attribute information of the stratum set related to the perched layer model, and the participating bedding plane and stratum body will be generated. Then, the generation method will be set to minimum curvature, the effective range information will be set to the entire work area, the stratum subdivision method will be set to equal scale, the number of subdivision layers will be set to 10, the effective distance information will be set to 2, the global level factor and the extrapolation level factor will both be 0.5, and the rest can be set to the initial settings. In order to improve the accuracy of the initial model of the phreatic layer, the stratum thickness calculation settings can be further configured.

[0060] When configuring the initial model of a confined aquifer: the formation name information will automatically display the confined aquifer. After checking whether to use the information, the attribute bar will switch to the relevant formation set attribute information of the confined aquifer model, and the participating bedding plane and formation body will be generated. Then, the generation method will be set to minimum curvature, the effective range information will be set to the entire work area, the formation subdivision method will be set to proportional, the number of subdivision layers will be set to 10, the effective distance information will be set to 2, the global level factor and the extrapolation level factor will both be 0.5, and the rest can be set to the initial settings.

[0061] Step 4: On the initial models of unconfined strata, perched water layer, and confined aquifer, the drill stratification points on the extracted strata are used to generate visualization interfaces for the unconfined strata model, perched water layer model, and confined aquifer model, respectively, based on the configuration of the above-mentioned stratigraphic set attribute information.

[0062] Step 5: Select the unconfined aquifer model, the perched aquifer model, and the confined aquifer model simultaneously to immediately create an overlay display.

[0063] During the process of establishing the initial models of the visual unconfined layer, perched layer, and confined aquifer, the corresponding stratigraphic set attribute information data is automatically switched, and the participating stratigraphic planes and stratigraphic volumes are generated, which facilitates the rapid configuration of each water level model.

[0064] Some implementation methods such as Figure 2 The steps for obtaining water level data from exploration boreholes and establishing a water level model, as described in the document, specifically include the following steps:

[0065] S1 stratifies and labels the water measurement data from the exploration boreholes;

[0066] S2 Layered retrieval of water measurement data from exploration boreholes;

[0067] S3 performs spatial interpolation on the water measurement data from the exploration boreholes of each layer to obtain the water level data for each layer;

[0068] S4 merges the water level data of all layers into the first water level model.

[0069] Spatial interpolation refers to estimating the value of a cell in a raster using a finite number of sampled data points. Spatial interpolation can be used to estimate unknown values ​​for any geographic point data. The spatial interpolation methods primarily used in the above implementations include, but are not limited to, known methods such as kriging (especially ordinary kriging and co-kriging) and its variants, IDW and spline methods, and natural neighborhood methods.

[0070] In some implementations, in deep-penetration geoscientific modeling software, the processed geological boundary SHP file is imported under the "Structural Boundary Line" node in the DEM interface. Simultaneously, the discrete point data of the geological boundary are projected onto the DEM surface and copied to the "Discrete Point Set" node of the corresponding stratum. Under the constraints of borehole stratification, stratigraphic boundary lines, stratigraphic attitude, profile maps, and faults, the deep-penetration geoscientific modeling software extracts and interprets the stratigraphic line data to the corresponding strata and generates the stratigraphic plane.

[0071] The above-described implementation method, specifically includes the following steps in the step of obtaining groundwater level contour data and establishing a water level surface model:

[0072] S5 acquires groundwater level contour data in vector format;

[0073] S6 Spatially interpolates the groundwater level contour data in the vector format to obtain the second water level model.

[0074] The groundwater level contour data sources include groundwater level depth data from 2005 to 2014 observed by 34 stations of the Chinese Ecosystem Research Network (CERN) using manual or automatic recording methods.

[0075] Some implementations, specifically S2, include: marking the geological strata and water level strata of the exploration borehole water measurement data; retrieving well stratification points on the geological strata or the water level strata; and retrieving borehole stratification points on the geological strata or the water level strata.

[0076] In some more specific implementations, S2 also includes the following steps: retrieving the geological sub-layer or the water level sub-layer, and loading the geological sub-layer or the water level sub-layer, including Geo3DML, truncated rectangular mesh, and AVF data, on the front end of the geological 3D modeling platform.

[0077] In some more specific implementations, S3 further includes a step of manually adding water level control points before the spatial interpolation step. Specifically, S3 also includes: obtaining perched water layer data, unconfined water layer data, and confined water layer data by spatial interpolation of the water level strata borehole data.

[0078] In some more specific implementations, the vector format groundwater level contour data in S5 includes vector format groundwater level contour data from different times.

[0079] In some embodiments, when loading borehole stratification using a depth-penetrating platform, a dialog box first pops up to select a stratification scheme. Selecting water level stratification will then load the water level stratification data from the borehole into the well management module of the 3D model. Specifically, the stratification is categorized by groundwater type, including confined water, unconfined water, and perched water. The strata data also includes different types of data sets such as top surface, discrete points, control points, annihilation lines, fault lines, contour lines, and the dominant stratum to which they belong.

[0080] While this specification contains numerous specific implementation details, these should not be construed as limiting the scope of any invention or the scope of the claims, but rather as descriptions of features that can embody specific embodiments of a particular invention. Specific features described in this specification within the context of an independent embodiment may also be implemented in combination with a single embodiment. Conversely, various features described within the context of a single embodiment may also be implemented independently in multiple embodiments, or in any suitable sub-combination. Furthermore, while features may be described for combination and even initially claimed in this way, one or more features from a claimed combination may be removed from that combination in some cases, and the claimed combination may be redirected to a sub-combination or a variation thereof.

Claims

1. A method for fusing water level data and geological data, characterized in that, include: The steps for establishing a geological structure model and performing mesh generation; The steps for obtaining groundwater level contour data and / or exploration borehole water measurement data to establish a water level model; Import the water level model into the meshed geological structure model; The IFC data of the water level model and the IFC data of the gridded geological structure model are exported and overlaid in the visualization interface.

2. The method for fusing water level data and geological data as described in claim 1, characterized in that, The step of obtaining water level data from exploration boreholes and establishing a water level model specifically includes the following steps: S1 stratifies and labels the water measurement data from the exploration boreholes; S2 Layered retrieval of water measurement data from exploration boreholes; Steps for establishing the S3 stratigraphic set; S4 performs spatial interpolation on the water measurement data from the exploration boreholes of each layer to obtain the water level data for each layer; S5 merges the water level data of all layers into the first water level model.

3. The method for fusing water level data and geological data as described in claim 1, characterized in that, The steps for obtaining groundwater level contour data and establishing a water level surface model specifically include the following steps: S6 acquires groundwater level contour data in vector format; S7 performs spatial interpolation on the groundwater level contour data in the vector format to obtain the second water level model.

4. The method for fusing water level data and geological data as described in claim 1, characterized in that, S2 specifically includes: marking the geological strata and water level strata of the exploration borehole water measurement data; retrieving well stratification points on the geological strata or water level strata; and retrieving borehole stratification points on the geological strata or water level strata.

5. The method for fusing water level data and geological data as described in claim 3, characterized in that, S2 also includes the following steps: retrieving the geological sub-layer or the water level sub-layer, and loading the geological sub-layer or the water level sub-layer on the front end of the geological 3D modeling platform, including Geo3DML, truncated rectangular mesh, and AVF data.

6. The method for fusing water level data and geological data as described in claim 1, characterized in that, S4 also includes a step of manually adding water level control points before the spatial interpolation step.

7. The method for fusing water level data and geological data as described in claim 5, characterized in that, S4 specifically includes: spatially interpolating the water measurement data from the exploration boreholes of the water level division to obtain perched water layer data, unconfined water layer data, and confined water data.

8. The method for fusing water level data and geological data as described in claim 2, characterized in that, The groundwater level contour data in vector format described in S6 includes groundwater level contour data in vector format from different times.

9. The method for fusing water level data and geological data as described in claim 1, characterized in that, The geological structure model includes fault model, stratigraphic model, rock mass model, and underground space model.

10. A computer-readable storage medium having a computer program / instructions stored thereon, characterized in that, When the computer program / instructions are executed by the processor, they implement the steps of any one of the methods described in claims 1-9.

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