Method for constructing city-level model and engineering-level model based on multi-source groundwater data

Abstract

The present invention relates to a method for constructing a city-level model and an engineering-level model based on multi-source groundwater data, comprising the following steps: hierarchically retrieving groundwater level data in survey boreholes for spatial interpolation to form a survey water surface, wherein the survey water surface comprises control points, and the groundwater includes but is not limited to confined water, groundwater, and upper stagnant water; and importing groundwater level contour line data in vector format at different times to generate a dynamic water surface. The beneficial effect is to provide a method for constructing a city-level model and an engineering-level model based on multi-source groundwater data, and its application in a surface-groundwater coupling model data processing system.

Description

Technical Field

[0001] The present invention belongs to the field of geological model construction, and in particular relates to a method for constructing a city-level model and an engineering-level model based on multi-source groundwater data. Background Art

[0002] On the one hand, the city-level geological model is a three-dimensional geological model constructed based on massive multi-source data of large volume and large area. The engineering-level geological model is a three-dimensional geological model constructed based on exploration drilling, in-hole CT, seismic waves, high-density electrical method and other geophysical multi-source data. Multi-source groundwater data includes data on confined water, groundwater, upper stagnant water, etc. The existing technology has not reported methods for constructing city-level models and engineering-level models based on multi-source groundwater data. On the other hand, while the rise in groundwater levels improves the water ecological environment and promotes ecological restoration, it also brings risks and challenges to urban construction and underground facility safety. There is an urgent need for a surface-groundwater coupling model data processing system and a short-term and long-term groundwater level prediction based on the system. Summary of the invention

[0003] In order to solve the technical problem proposed by the present invention, one aspect of the present invention provides a method for constructing a city-level model and an engineering-level model based on multi-source groundwater data, the method comprising the following steps:

[0004] Retrieving groundwater level data in the survey boreholes in layers for spatial interpolation to form a survey water level surface, wherein the survey water level surface includes control points, and the groundwater includes but is not limited to confined water, groundwater, and upper stagnant water;

[0005] Import groundwater level contour data in vector format at different times to generate dynamic water surface;

[0006] Overlaying and displaying the survey water surface and / or the dynamic water surface in an engineering-level geological model or a city-level geological model; or

[0007] The survey water surface level and / or the dynamic water surface are included when exporting an engineering-level geological model, and the survey water surface level and / or the dynamic water surface are included when exporting a city-level geological model.

[0008] Another aspect of the present invention provides a method system for constructing city-level models and engineering-level models based on multi-source groundwater data, the system comprising at least one processor; and a memory storing instructions, which, when executed by at least one processor, implement the steps of the aforementioned method.

[0009] The beneficial effects of the present invention are as follows: first, a method for constructing city-level models and engineering-level models based on multi-source groundwater data is provided, and the three-dimensional groundwater surface construction supports the import of urban groundwater surface contour data, or the loading of groundwater stratification data of survey boreholes to generate a water surface, and supports the display and export of the water surface; secondly, based on the surface-groundwater coupling model data processing system, the short-term and long-term groundwater water level prediction can be carried out, and the relationship between the groundwater level rise and the subway leakage point can be quickly and accurately determined. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 .Flowchart of the method for building city-level models and project-level models;

[0011] Figure 2 .Build system topology diagrams for city-level models and engineering-level models. DETAILED DESCRIPTION

[0012] Various aspects of the present disclosure will now be explained with reference to the accompanying drawings. As long as the shapes, relative positions and other aspects of the components described in these aspects are not clearly defined, the scope of the present disclosure is not limited to the components shown, which are only used for illustrative purposes. In addition, although many details are set forth, it should be understood that some aspects of the present disclosure can be implemented without these details. In other cases, well-known circuits, structures and technologies are not shown in detail to avoid obscuring the understanding of the description.

[0013] Combination Figure 1 As shown, some embodiments of the present invention relate to a method for constructing a city-level model and an engineering-level model based on multi-source groundwater data, the method comprising the following steps:

[0014] S1: retrieve the groundwater level data in the exploration borehole in layers and perform spatial interpolation to form an exploration water level surface, wherein the exploration water level surface includes control points, and the groundwater includes but is not limited to confined water, groundwater, and upper stagnant water;

[0015] S2: Import the groundwater level contour data in vector format at different times to generate dynamic water surface;

[0016] S3: Overlaying and displaying the survey water surface and / or the dynamic water surface in the engineering-level geological model or the city-level geological model; or

[0017] S4: When exporting an engineering-level geological model, the survey water surface level and / or the dynamic water surface are included; when exporting a city-level geological model, the survey water surface level and / or the dynamic water surface are included.

[0018] In these technical solutions, the term "control point" refers to the point corresponding to the groundwater level data in the survey borehole. In the preferred technical solution, the control point adjusts the number of control points according to the type of groundwater data. In the further preferred technical solution, the superposition display of the survey water surface and the dynamic water surface is adjusted according to the adjusted control points, so that the superposition display can be prevented from being inaccurate according to different application scenarios or business needs. It should be noted that each control point includes three-dimensional position information (x, y, z), and the superposition display is achieved by matching the three-dimensional position information with the dynamic water surface.

[0019] Some embodiments of the present invention further relate to a method for constructing a city-level model and an engineering-level model based on multi-source groundwater data. The method for retrieving groundwater level data in a survey borehole includes the following downloading steps:

[0020] Sending a command to download drilling layer data to the drilling set node, wherein the drilling layer data includes geological layer data, water level layer data and attribute data;

[0021] Obtain or create a water level stratification scheme node, wherein the stratification scheme includes geological stratification and water level stratification;

[0022] When water level stratification is selected, the water level stratification and attribute data are downloaded and saved under the water level stratification scheme node.

[0023] In these technical solutions, the term "node" of the present invention can be a database table storage node, a file storage node or a menu navigation node. By setting the water level stratification scheme node, the loading speed of the current drilling data is improved and the stratified data storage structure is optimized.

[0024] Some embodiments of the present invention further relate to a method for constructing a city-level model and an engineering-level model based on multi-source groundwater data, the method further comprising a step of presetting project information before loading the borehole layer data, the step of presetting project information comprising:

[0025] Select a project and a work area for said project;

[0026] Get the plane work area range of the project;

[0027] According to the plane work area range of the selected project, the range information of the selected project in the database is obtained;

[0028] Initialize the plane work area range of the three-dimensional work area.

[0029] In these technical solutions, the loading range of required data in the database is constrained by the scope of the project and the plane work area, which further improves the loading speed of the drilling data.

[0030] Some embodiments of the present invention further relate to a method for constructing a city-level model and an engineering-level model based on multi-source groundwater data. The method for retrieving groundwater level data in a survey borehole includes the following steps of loading basic borehole information:

[0031] In the drilling management window, select the drilling management node in the drilling management window to load the basic information of the drilling layered data within the plane work area of ​​the three-dimensional work area.

[0032] In these technical solutions, the basic information loaded can be corresponding to the project.

[0033] Some embodiments of the present invention further relate to a method for constructing a city-level model and an engineering-level model based on multi-source groundwater data. The method for retrieving groundwater level data in a survey borehole includes the following steps of loading the borehole water level in layers:

[0034] Configure a stratification scheme selection window, wherein the stratification schemes include a geological stratification scheme, a water level stratification scheme, and a full stratification scheme;

[0035] Select the water level stratification scheme and choose to load all stratifications, which include structural stratification and water level stratification.

[0036] Some embodiments of the present invention further relate to a method for constructing a city-level model and an engineering-level model based on multi-source groundwater data, wherein generating the survey water level surface comprises the following steps:

[0037] Switch to the structural modeling window and create a new stratum in the stratum set node;

[0038] Configure the stratum attributes, including stratum name, stratum type, whether to use, scope, generation method, discarding out-of-bounds data points, search method, box half-side length, search for the nearest K points, stratum sequence settings (stratum subdivision method, number of subdivision layers), and smoothing settings (smoothing method, smoothing factor);

[0039] Modify the name of the stratigraphic layer to be the same as the water level layer;

[0040] Extract the drilling stratification points on the level of the stratum, the attribute name is groundwater type, the attribute content is groundwater, and the point set adding method is adding a new discrete point set. If no new discrete point set is added, the existing discrete point set is overwritten;

[0041] Generate a layer after editing points of a set of discrete stratigraphic points.

[0042] In these technical solutions, the steps of generating the survey water level surface mainly include configuring the stratum attributes, modifying the stratum layer name to the same name as the water level layer, and generating the layer after editing the points of the stratum discrete point set. Through these configurations, it is very convenient to introduce the water level layer in any stratum model, so that the geological drilling exploration data and multi-source groundwater data can be effectively integrated.

[0043] Some embodiments of the present invention further relate to a method for constructing a city-level model and an engineering-level model based on multi-source groundwater data, wherein generating the dynamic water surface comprises the following steps:

[0044] Switch to the structural modeling window and create a new stratum in the stratum set node;

[0045] Configure the stratum attributes, including stratum name, stratum type, whether to use, scope, generation method, discarding out-of-bounds data points, search method, box half-side length, search for the nearest K points, stratum sequence settings (stratum subdivision method, number of subdivision layers), and smoothing settings (smoothing method, smoothing factor);

[0046] Modify the name of the stratigraphic layer to be the same as the water level layer;

[0047] Importing groundwater level contour lines, wherein the groundwater level contour lines are imported and stored as discrete point set data of the layer;

[0048] Check whether the current model has a modeling working directory. If a modeling working directory exists, generate a layer.

[0049] In these technical solutions, the steps of generating the survey water level surface mainly include configuring the stratum attributes, modifying the stratum layer name to the same name as the water level layer, and generating the layer after editing the stratum discrete point set. Through these configurations, it is very convenient to introduce the water level layer into any stratum model, so that the geological drilling exploration data and the groundwater level contour line data are effectively integrated.

[0050] Some embodiments of the present invention further relate to a method for constructing a city-level model and an engineering-level model based on multi-source groundwater data, wherein the superimposed display of the water surface in the geological model comprises the following steps:

[0051] Export the water surface from the water surface model to obtain the water surface IFC file, water surface OBJ file and water surface STL file;

[0052] The geological model is exported and the truncated grid is obtained to obtain the grid IFC file and the attribute grid;

[0053] The water surface IFC file and the grid IFC file are respectively imported into the building information model (rev it) for superimposed display;

[0054] The water surface OBJ file and the attribute grid are imported into a three-dimensional visualization platform for overlay display;

[0055] The water surface STL is imported into the geological model for overlay display.

[0056] Some embodiments of the present invention further relate to a method for constructing a city-level model and an engineering-level model based on multi-source groundwater data, further comprising a step of dynamically updating the model locally:

[0057] Based on the original geological model, the three-dimensional geological model is partially updated by adding drilling data and profile data. The update frequency is real-time update for project-level models and annual update for city-level models.

[0058] In these technical solutions, the three-dimensional geological model is partially updated by adding new drilling data and profile data, thereby improving the accuracy of the model.

[0059] Some other embodiments of the present invention relate to a system 1 for constructing a city-level model and an engineering-level model based on multi-source groundwater data, wherein the system 1 includes at least one processor 2; a memory 3 and a network interface 4, wherein the memory 3 stores instructions, and when the instructions are executed by at least one processor 2, the steps of the aforementioned method are implemented.

[0060] The general application of the present invention for constructing city-level models and engineering-level models based on multi-source groundwater data includes but is not limited to outputting the following layers, including historical groundwater level line segment maps, historical layer contour maps, historical water level rise maps, historical vertical position relationship maps, historical drainage maps, historical leakage point maps, groundwater monitoring maps, underwater distribution maps of tunnel structures, structural base draft distribution maps, and geological distribution maps.

[0061] A technical effect of a special application of an embodiment of the present invention is that it greatly facilitates the determination of the relationship between the rise of groundwater levels and subway leakage points. For example, it is determined that the rise of groundwater levels in a certain place causes the operating subway to change from being above water in 2018 to being underwater in 2022, and that the points where the number of leakage points increased are mainly distributed in the structural divisions of a single sand and pebble and 2-3 layers of sand and gravel aquifers. It is determined that the change of the operating subway from being above ground to being underground is the reason for the increase in the number of leakage points.

[0062] Another special application technical effect of an embodiment of the present invention is that the groundwater monitoring data provided by the Water Authority is processed and put into storage for management, and spatial analysis and statistics are performed (attribute information ID, attribute name, structure base height, anti-floating waterproofing, whether the structure is underwater, safety conclusion, difference calculation, current water level). It can support the relationship between the main structure of the station / section and the groundwater position (below the bottom plate / above the middle plate / above the top plate), providing a basis for daily safety management and disease control of subway structures.

[0063] The following embodiments describe in detail the specific application of building city-level models and engineering-level models based on multi-source groundwater data.

[0064] While the rise of groundwater level improves the water ecological environment and promotes ecological restoration, it also brings risks and challenges to urban construction and underground facility safety. First, the rise of groundwater level can reduce the safety reserve of underground structure anti-floating. As the lower water level rises, the safety reserve of anti-floating measures is gradually reduced, and there is a risk of overall anti-floating and local anti-floating. Secondly, the rise of groundwater level can lead to a decrease in the bearing capacity of the foundation. The rise of groundwater will cause corresponding changes in the physical and mechanical properties of the foundation soil, which may affect the bearing capacity of the foundation. It is mainly reflected in: First, after the water level rises, the strength of the stratum itself decreases; second, due to the buoyancy of water, the effective weight on the soil will be reduced, thereby reducing the bearing capacity of the soil. Ultimately, it affects the safety of urban survey and design, resulting in the inability of the original survey and design experience to safely guide engineering design and construction, affecting the safety of urban construction and operation and maintenance. In recent years, problems such as cracking, leakage, foundation pit seepage, and water gushing caused by rising groundwater levels have become common, posing a threat to urban construction, engineering construction, and facility and equipment operations. The changes in groundwater levels and urban buildings and infrastructure in the context of ecological water replenishment have brought inconvenience to urban construction and safety management.

[0065] How to ensure urban safety under ecological water replenishment and ensure the coordinated coexistence of ecological water replenishment and the safety of urban buildings and infrastructure are key issues that need to be urgently addressed.

[0066] The surface-groundwater coupling model data processing system provided by the present invention is a key technology for the synergistic symbiosis of ecological water replenishment and urban construction. It is used to predict the short- and long-term groundwater levels in plain areas under the background of ecological water replenishment, analyze the anti-floating risks and foundation stability risks caused by different increases in groundwater levels to existing urban infrastructure, derive groundwater risk zoning, provide a groundwater risk early warning mechanism under the background of ecological water replenishment, and formulate a groundwater risk prevention and control technical system.

[0067] The surface-groundwater coupling model data processing system of the present invention operates on the basis of constructing a city-level model and an engineering-level model based on multi-source groundwater data, wherein the city-level model and the engineering-level model are constructed based on multi-source groundwater data, and provide data support for the surface-groundwater coupling model data processing system. In addition, the data support of the surface-groundwater coupling model data processing system also includes hydrological and meteorological environmental change data, daily precipitation data during ecological water replenishment, river runoff data, and seasonal river leakage mathematical model data, wherein the hydrological and meteorological environmental change data, daily precipitation data during ecological water replenishment, river runoff data, and seasonal river leakage mathematical model data are all known data.

[0068] The surface-groundwater coupling model data processing system provided by the present invention can conduct comprehensive research on hydrogeological conditions and dynamic analysis of groundwater levels, including:

[0069] A formation structure module, wherein the formation structure module is configured to:

[0070] Divide the hydrogeological units according to the input regional geological and hydrogeological conditions;

[0071] Collecting historical groundwater level dynamic data corresponding to different hydrogeological units in the city-level model and / or engineering-level model of any of the aforementioned embodiments, and quantitatively analyzing the dynamic changes of groundwater levels based on the historical groundwater level dynamic data;

[0072] The quantitative analysis of groundwater level dynamic change data is combined with the recent hydrological and meteorological environment change data to output the groundwater level recent situation analysis result data as the basic groundwater level data.

[0073] The groundwater response process module to ecological water replenishment is based on the seasonal river leakage mathematical model, collects or measures river cross-sectional shape data, determines the riverbed infiltration capacity, and then uses the daily precipitation, river runoff and the basic groundwater level data during the ecological water replenishment period to quantitatively analyze the relationship between ecological water replenishment and groundwater level rise.

[0074] Groundwater near- and long-term water level prediction module The groundwater near- and long-term water level prediction module performs near- and long-term predictions of groundwater flow fields (for example, in the next 10, 50, or 100 years) based on water replenishment intensity information and hysteresis information.

[0075] Groundwater risk research and risk zoning module The groundwater risk research and risk zoning module includes:

[0076] The anti-floating risk submodule collects survey data of typical buildings in the study area, extracts anti-floating defense water level values, compares and analyzes the predicted high water level with the anti-floating defense water level, preliminarily proposes areas where anti-floating risks may exist, selects typical buildings for anti-floating stability verification, and finally divides and classifies the anti-floating risks in the urban construction and operation stages.

[0077] The foundation bearing capacity risk reduction module is based on the foundation bearing capacity determination method specified in the building foundation investigation and design specifications for any area. On the basis of collecting and analyzing the investigation data of representative buildings in the study area, it collects and arranges in-situ tests and geotechnical tests in different zones and layers, analyzes or calculates the foundation bearing capacity of each zone and layer under the current groundwater level rise conditions, and compares the bearing capacity with that before the groundwater level rises, and analyzes the impact of groundwater level rise on the characteristic value of foundation bearing capacity and its depth and width correction.

[0078] Risk zoning map preparation submodule The risk zoning map preparation submodule defines the anti-floating risk level and gives the foundation stability risk level based on theoretical analysis and case analysis. The anti-floating risk zoning map and the foundation stability risk zoning map considering the impact of changes in foundation bearing capacity are prepared separately.

[0079] The groundwater risk early warning mechanism submodule is based on the anti-floating risk zoning map of the plain area and the foundation stability risk zoning map, combining automated monitoring technology with short-term groundwater level prediction technology to establish a groundwater level early warning mechanism.

[0080] The beneficial effects of the surface-groundwater coupling model data processing system of the present invention include: achieving short-term and long-term predictions of groundwater levels, which serve as the data basis for risk analysis; compiling various types of groundwater risk zoning maps; and establishing a groundwater risk early warning mechanism and prevention and control technology system with a theoretical basis, scientific route, and case support.

[0081] The embodiments and functional operations of the subject matter described in this specification may be implemented in: digital electronic circuitry, tangibly implemented computer software or firmware, computer hardware, including the structures disclosed in this specification and their structural equivalents, or a combination of more than one of the above. The embodiments of the subject matter described in this specification may be implemented as one or more computer programs, i.e., one or more modules of computer program instructions encoded on one or more tangible non-transitory program carriers, for execution by a data processing device or to control the operation of a data processing device.

Claims

1. A method for constructing a city-level model and an engineering-level model based on multi-source groundwater data, characterized in that: The method comprises the following steps: Retrieving groundwater level data in the survey boreholes in layers for spatial interpolation to form a survey water level surface, wherein the survey water level surface includes control points, and the groundwater includes any one of confined water, groundwater, and upper stagnant water; Import groundwater level contour data in vector format at different times to generate dynamic water surface; Overlaying and displaying the survey water surface level and / or the dynamic water surface in an engineering-level geological model or a city-level geological model; or The survey water surface and / or the dynamic water surface are attached when exporting the engineering-level geological model, and the survey water surface and / or the dynamic water surface are attached when exporting the city-level geological model; The method for retrieving groundwater level data in the survey borehole includes the following downloading steps: Sending a command to download drilling layer data to the drilling set node, wherein the drilling layer data includes geological layer data, water level layer data and attribute data; Obtain or create a water level stratification scheme node, wherein the stratification scheme includes geological stratification and water level stratification; When water level stratification is selected, the water level stratification and attribute data are downloaded and saved under the water level stratification scheme node; The method further comprises a step of presetting project information before loading the drilling layer data, and the step of presetting project information comprises: Select a project and a work area for said project; Get the plane work area range of the project; According to the plane work area range of the selected project, the range information of the selected project in the database is obtained; Initialize the plane work area range of the three-dimensional work area; The method for retrieving groundwater level data in the survey borehole includes the following steps of loading basic borehole information: In the drilling management window, select the drilling management node in the drilling management window to load the basic information of the drilling layered data within the plane work area of ​​the three-dimensional work area; Generating the survey water level surface comprises the following steps: Switch to the structural modeling window and create a new stratum in the stratum set node; Configure the stratum attributes, which include stratum name, stratum type, whether to use, scope, generation method, discarding out-of-bounds data points, search method, box half-side length, search for the nearest K points, layer sequence setting, and smoothing setting; the layer sequence setting includes the stratum subdivision method or the number of subdivision layers, and the smoothing setting includes the smoothing method or the smoothing factor; Modify the name of the stratigraphic layer to be the same as the water level layer; Extract the drilling stratification points on the level of the stratum, the attribute name is groundwater type, the attribute content is groundwater, and the point set adding method is adding a new discrete point set. If no new discrete point set is added, the existing discrete point set is overwritten; Generate a layer after editing points of a set of discrete stratigraphic points.

2. The method according to claim 1, characterized in that The method for retrieving groundwater level data in the survey borehole includes the following steps of loading the borehole water level in layers: Configure a stratification scheme selection window, wherein the stratification schemes include a geological stratification scheme, a water level stratification scheme, and a full stratification scheme; Select the water level stratification scheme and choose to load all stratifications, which include structural stratification and water level stratification.

3. The method according to claim 1, characterized in that Generating the dynamic water surface comprises the following steps: Switch to the structural modeling window and create a new stratum in the stratum set node; Configure the stratum attributes, which include stratum name, stratum type, whether to use, scope, generation method, discarding out-of-bounds data points, search method, box half-side length, search for the nearest K points, layer sequence setting, and smoothing setting; the layer sequence setting includes the stratum subdivision method or the number of subdivision layers, and the smoothing setting includes the smoothing method or the smoothing factor; Modify the name of the stratigraphic layer to be the same as the water level layer; Importing groundwater level contour lines, wherein the groundwater level contour lines are imported and stored as discrete point set data of the layer; Check whether the current model has a modeling working directory. If a modeling working directory exists, generate a layer.

4. The method according to claim 1, characterized in that The steps to superimpose the water surface in the geological model include the following: Export the water surface from the water surface model to obtain the water surface IFC file, water surface OBJ file and water surface STL file; The geological model is exported and the truncated grid is obtained to obtain the grid IFC file and the attribute grid; The water surface IFC file and the grid IFC file are respectively imported into the building information model for overlay display; The water surface OBJ file and the attribute grid are imported into a three-dimensional visualization platform for overlay display; The water surface STL file is imported into the geological model for overlay display.

5. The method according to claim 1, characterized in that It also includes the model dynamic local update step: Based on the original geological model, the three-dimensional geological model is partially updated by adding drilling data and profile data. The update frequency is real-time update for project-level models and annual update for city-level models.

6. A method system for constructing city-level models and engineering-level models based on multi-source groundwater data, characterized in that: The system comprises at least one processor; and a memory storing instructions, which, when executed by the at least one processor, implement the steps of the method according to any one of claims 1 to 5.

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