Three-dimensional construction method and system for toe slab of concrete face rockfill dam based on three-dimensional geological model

Abstract

The present invention discloses a three-dimensional construction method and system for the toe slab of a concrete face rockfill dam based on a three-dimensional geological model, which relates to the technical field of water conservancy and hydropower engineering. The method includes setting the basic information parameters of the toe slab design; determining the toe slab foundation establishment principle; generating the toe slab control points and judging the foundation establishment principle; determining the typical section dimensions of the toe slab, including calculating the variable cross-section position of the toe slab; generating the toe slab intersection section model; and generating the three-dimensional model of the toe slab. The system includes a toe slab foundation setting sub-module, a toe slab control line design sub-module, a toe slab typical section design sub-module, and a toe slab connection section design sub-module. The present invention realizes the three-dimensional intelligent modeling of the toe slab structure of the concrete face rockfill dam, effectively solves the problems of difficult three-dimensional modeling of the toe slab shape, complex drawing of the spatial positioning structure diagram, and can accurately judge the foundation establishment conditions of the toe slab; the model can realize cross-platform data interaction with software such as reinforcement and calculation.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy and hydropower engineering, and particularly relates to a three-dimensional construction method and system for a toe slab of a concrete face rockfill dam based on a three-dimensional geological model. Background Technique

[0002] Concrete face rockfill dams are characterized by their superior safety, economy, and good adaptability to complex topographic and geological conditions, showing strong competitiveness in the selection of dam types for water conservancy and hydropower projects, and thus are widely used.

[0003] In the design of reservoirs in the power station design of water conservancy and hydropower projects, especially pumped storage power station reservoirs, there are strict requirements for anti-seepage. The toe slab, as an important anti-seepage system of the concrete face rockfill dam, forms an anti-seepage body above the dam foundation through the connection of the peripheral joint with the face slab structure, and is integrated with the bedrock after curtain grouting treatment to seal the leakage channels below the foundation surface, playing a connecting role in the anti-seepage system of the concrete face rockfill dam.

[0004] The spatial structure of the toe slab is relatively complex, and the determination of the toe slab line and the shape design are one of the key points and difficulties in the design of concrete face rockfill dams. The traditional design of the toe slab is two-dimensional design or parametric design, achieving certain effects. However, in the design process, there is a lack of interaction with the three-dimensional topographic and geological model, and it is impossible to accurately determine the foundation conditions of the toe slab according to the geological model information; there are also data operations across software platforms, and it is impossible to ensure the consistency of data between platforms; only the parameterization of the process is realized, and intelligence cannot be achieved.

[0005] With the development of computer technology, three-dimensional design technology has been more and more widely used in engineering design due to its advantages such as intelligence, high operability, high design accuracy, and high design efficiency. However, at present, there is a lack of three-dimensional design methods and systems for the toe slab structure of concrete face rockfill dams, and methods and systems that can design the toe slab structure based on a three-dimensional geological model are relatively lacking. Summary of the Invention

[0006] In view of the problems existing in the prior art such as difficult modeling of the toe slab shape structure and difficult spatial positioning, the present invention provides a three-dimensional construction method and system for a toe slab of a concrete face rockfill dam based on a three-dimensional geological model. It realizes the three-dimensional intelligent modeling of the toe slab structure of the concrete face rockfill dam, and can accurately determine the foundation conditions of the toe slab; the model can realize cross-platform data interaction with software such as reinforcement and calculation.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0008] Three-dimensional construction method of the toe slab of a concrete face rockfill dam based on a three-dimensional geological model, comprising the following steps: Step 1: Set the basic information parameters of the toe slab design; determine the founding principle of the toe slab; generate the control points of the toe slab, and judge the founding principle; determine the typical section dimensions of the toe slab, including the calculation of the variable cross-section position of the toe slab; generate the model of the cross-section of the toe slab; generate the three-dimensional model of the toe slab.

[0009] Based on the above technical solution, further, in Step 1, the process is as follows: Step 11: Select the graphic space coordinate system and frame the visualization range that needs to be displayed in the transparent geology; Step 12: Under the space coordinate system, pick up the design reference line of the toe slab of the concrete face rockfill dam and input the corresponding design parameters; Step 13: Set the parameters of the foundation surface of the toe slab.

[0010] Based on the above technical solution, further, in Step 12, there are two design methods for the design reference line of the toe slab: One design method is to select the bottom line of the wave wall of the concrete face rockfill dam and set the corresponding elevation value H0 of the bottom of the wave wall; the other method is to select the dam axis of the concrete face rockfill dam and set the corresponding elevation value H1 of the dam crest, the horizontal distance Dis from the dam axis to the bottom line of the most upstream side of the wave wall, the upstream azimuth, and the vertical distance △H between the dam crest elevation and the bottom line of the wave wall.

[0011] Based on the above technical solution, further, in Step 2, the process is as follows: Step 21: Select the founding principle of the control points of the toe slab; Step 22: Set the intersection line target based on the selected weathered layer.

[0012] Based on the above technical solution, further, in Step 22, the selected weathered layers include the terrain surface, the lower limit of completely weathered layer, the lower limit of strongly weathered layer, and the lower limit of weakly weathered layer.

[0013] Based on the above technical solution, further, in Step 3, the process is as follows: Step 31: Input the initially selected control points of the toe slab design; Step 32: Adjust the plane position of the control points of the toe slab; Step 33: Adjust the elevation of the control points of the toe slab; Step 34: Verify the scheme of the founding principle of the toe slab; Step 35: Determine the control points of the toe slab.

[0014] Based on the above technical solution, further, in Step 31, there are two input methods, one input method is screen point selection, and the other input method is text entry.

[0015] Based on the above technical solution, further, in Step 33, the adjustment process is as follows: After the plane position of the control points of the toe slab is basically confirmed, round the elevation of the control points of the toe slab, select the control points of the toe slab, and realize the elevation adjustment of the control points of the toe slab.

[0016] Based on the above technical solution, further, in step 4, the process is: step 41, select the toe plate control section that needs to be designed, and design the toe plate parameters of the head section and tail section on the toe plate control line of the toe plate control section in turn; step 42, calculate the toe plate width AB; step 43, set the toe plate cross-sectional parameters; step 44, determine the position of the toe plate variable section; step 45, set and add all the head section and tail section parameters of all toe plate control lines.

[0017] The 3D construction system of the toe plate of the face rockfill dam based on the 3D geological model includes the toe plate foundation setting submodule, the toe plate control line design submodule, the toe plate typical profile design submodule, and the toe plate connection section design submodule; the toe plate foundation setting submodule is used to collect and set the coordinate system and visualization range of the toe plate structure, the toe plate design benchmark positioning, the toe plate foundation surface parameter setting, the toe plate control point foundation establishment principle, and the benchmark information required for the intersection line target of the toe plate foundation surface and the geological weathering layer; the toe plate control line design submodule is used to assist users in the preliminary selection of toe plate control points according to the 3D geological model; based on the automatically generated geological information mapping information, The plane position and elevation of the toe plate control point are adjusted to determine the toe plate control point for easy plane alignment of the toe plate; at the same time, it is verified whether the toe plate structure meets the toe plate foundation principles within the foundation width; the toe plate typical section design submodule can input the parameter information of the head and tail sections corresponding to each toe plate control line, and some parameters are input with default data according to the calculation formula built into the system; it assists users in automatically calculating the toe plate interface size and toe plate transition section position based on the plane control point; the toe plate connection section design submodule automatically calculates the section position based on the water head acting at the toe plate control point of each toe plate control section, and automatically connects the two toe plate control sections.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) Based on a three-dimensional topographic and geological model, the present invention realizes the three-dimensional intelligent modeling of the toe plate structure of a panel rockfill dam, effectively solving the problems of difficulty in three-dimensional modeling of the toe plate shape, difficulty in spatial positioning, and complex drawing of structural diagrams, and can accurately determine the foundation conditions of the toe plate; the model can realize cross-platform data interaction with reinforcement and calculation software.

[0020] (2) The present invention realizes significant advantages such as the coordination, digitization, automation, intelligence, visualization, dynamic association and real-time update, operability, high design accuracy, strong interactive operability, compatibility and data diversity between 3D design and geological models, which can greatly improve the design quality and accuracy of the toe slab structure of concrete face rockfill dams. It not only improves the design accuracy and efficiency, but also enhances the management and application capabilities of design data. Specifically, it is reflected in the following aspects: 1. Coordination between 3D design and geological models: The system can make full use of the geological data and spatial topological relationships of 3D geological models to provide accurate basic information for the design of the toe slab of concrete face rockfill dams. 2. Digitization, automation, intelligence and visualization: The system takes 3D forward design as the core concept and realizes the digitization, automation, intelligence and visualization of the design process through advanced algorithms and digital technologies, greatly improving the design efficiency and quality. 3. Dynamic association and real-time update: The system establishes a dynamic association between the 3D geological model and design parameters, and realizes the real-time update and synchronization of data according to the geological model. 4. High interactive operability and design accuracy: Each design step of the system is automated, and key steps are realized through human-computer interaction to reduce errors and workload, improve the design efficiency, and have high design accuracy. 5. Compatibility and data diversity: The toe slab design model generated by the system can be directly connected to platforms such as 3D reinforcement software and CAE software, and is compatible with structured, semi-structured and unstructured data to ensure data diversity and integrity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a flow chart of the method of the present invention;

[0022] Figure 2 is a schematic diagram of the design interface for setting the basic parameters of the toe slab of the present invention;

[0023] Figure 3 is a schematic diagram of the design interface for the control line of the toe slab of the present invention;

[0024] Figure 4 is a schematic diagram of the design interface for the typical section of the toe slab of the present invention;

[0025] [[ID=?1]] Figure 5 is a schematic diagram of the design interface for the connection section of the toe slab of the present invention;

[0026] Figure 6 is a schematic diagram of the intersection line between the base surface of the toe slab and the corresponding weathered layer;

[0027] Figure 7 [[ID=3?]]is a geological information mapping diagram of the present invention;

[0028] Figure 8 is a flow chart of the operation of the toe slab foundation setting sub-module of the toe slab 3D design system of the present invention;

[0029] Figure 9 It should be noted that there seems to be an error in the original text where "?1" and "3?" are used in the tags. They should be corrected to proper numbers or removed if they are incorrect notations. The above translation is based on the best understanding of the text with the existing tags.It is the operation flow chart of the toe slab control line design sub-module of the toe slab 3D design system of the present invention;

[0030] Figure 10 It is the operation flow chart of the typical section design sub-module of the toe slab of the toe slab 3D design system of the present invention;

[0031] Figure 11 It is the flow operation chart of the toe slab connection section design sub-module of the toe slab 3D design system of the present invention. Detailed implementation manners

[0032] The present invention will be further described and explained below in conjunction with the accompanying drawings and specific implementation manners. The technical features of each implementation manner in the present invention can be combined correspondingly on the premise of no conflict with each other.

[0033] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the specific implementation manners of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below. The technical features in each embodiment of the present invention can be combined correspondingly on the premise of no conflict with each other.

[0034] Embodiment 1

[0035] Combined with Figures 1-6 As shown, this embodiment provides a method for three-dimensional construction of the toe slab of a concrete face rockfill dam based on a three-dimensional geological model, including the following steps:

[0036] Step 1: Set the basic information parameters for the design of the toe slab of the concrete face rockfill dam; specifically, the setting process is as follows:

[0037] Step 11: Select the graphic space coordinate system and frame the visualization range that needs to be displayed in the transparent geology. This step 11 sets the space coordinate system for the user to perform three-dimensional design.

[0038] Step 12: Under the space coordinate system, pick up the design reference line of the toe slab of the concrete face rockfill dam and input the corresponding design parameters. There are two design methods for the toe slab design reference line: one is to select the bottom line of the wave wall of the concrete face rockfill dam and set the corresponding bottom elevation value H0 (m) of the wave wall; the other is to select the dam axis of the concrete face rockfill dam and set the corresponding dam top elevation value H1 (m), the horizontal distance Dis (m) from the dam axis to the bottom line of the most upstream side of the wave wall, the upstream azimuth, and the vertical distance △H (m) between the dam top elevation and the bottom line of the wave wall, referring to Figure 2 As shown. This step 12 uses two methods to pick up the reference line for the design of the toe slab of the concrete face rockfill dam as the basis for the toe slab design.

[0039] Furthermore, the parameters of the toe slab foundation surface are also set. Specifically, the parameters of the toe slab foundation surface include the bottom slope coefficient m of the panel, that is, the bottom slope coefficient of the panel of the concrete face rockfill dam. When the panel slope is 1:1.4, m = 1.4; the starting thickness t0 of the panel, that is, the thickness at the top of the panel; the panel thickness coefficient b, that is, the panel thickness change coefficient, 0.002 < b < 0.004. When the impervious panel is a constant-thickness panel, b = 0 at this time. The underlying logic of this step 13 is: to control the toe slab control points in the same plane, a plane including the bottom surface of the panel as the plane where the toe slab control points are located, that is, the toe slab foundation surface, is established at the bottom layer. That is to say, this step 13 creates a plane, that is, the toe slab foundation surface, which can be used as a decisive condition for determining the toe slab control points in the subsequent steps, ensuring that the toe slab foundation surfaces are coplanar and improving the accuracy of the three-dimensional design of the toe slab structure.

[0040] Step 2: Determine the founding principle of the toe slab; specifically, the determination process is as follows:

[0041] Step 21: Select the founding principle of the toe slab control points. Among them, the optional options for the founding principle include completely weathered rock mass, strongly weathered rock mass, weakly weathered rock mass, slightly weathered and below rock mass. The underlying logic of this step 21 is to control the toe slab control points within the corresponding rock mass through the selected founding principle of the toe slab, facilitating the verification of the founding principle in the next step. This step 21 facilitates the later verification of the founding principle of the toe slab by selecting the founding principle of the toe slab, improving the design efficiency of the toe slab and the accuracy of the structural design.

[0042] Step 22: Set the intersection line target based on the selected weathered layer. Among them, the optional options for the weathered layer include the terrain surface, the lower limit of complete weathering, the lower limit of strong weathering, and the lower limit of weak weathering. As shown in Figure 6 As shown, the intersection line target refers to the intersection line between the toe slab foundation surface and the selected corresponding weathered layer. This step 22 is to determine the intersection line with the corresponding weathered layer that needs to be displayed in the model space to assist the designers in selecting the toe slab control points in the next step. The intersection line results are as follows Figure 6 As shown, line A represents the intersection line between the toe slab foundation surface and the lower limit of complete weathering, line B represents the intersection line between the toe slab foundation surface and the lower limit of strong weathering, and line C represents the intersection line between the toe slab foundation surface and the lower limit of weak weathering. It should be noted that this step 22 can achieve a quick preliminary selection of the toe slab control points based on the three-dimensional geological model, improving the design efficiency of the toe slab and the accuracy of the structural design.

[0043] Step 3: Generate the toe slab control points and determine the founding principle; specifically, the process is as follows:

[0044] Step 31: Input the toe slab control points of the preliminary design. There are two input methods. One input method is screen selection, that is, based on the intersection line between the toe slab foundation surface generated in Step 22 and the corresponding weathered layer to assist in the selection of toe slab control points. When selecting, it is default that the starting point Y1 of the toe slab control point is the endpoint of the bottom line of the left bank wave wall, and the ending point YN of the toe slab control point is the endpoint of the bottom line of the right bank wave wall. The underlying logic of this method is: according to the intersection line between the toe slab foundation surface generated on the drawing and the corresponding weathered layer, manually select the toe slab control points within the relevant intersection line boundary during selection. For example, when the founding rock mass of each toe slab control point is weakly weathered rock, the screen selection of toe slab control points can be carried out within the corresponding area range. Moreover, during selection, it is default that all toe slab control points are located on the plane of the toe slab foundation surface established in Step 13 to ensure that the selected toe slab control points are coplanar. The other input method is text entry. By loading Text Files, the existing toe slab control points determined by the user in other ways can be imported into the system. This Step 31 can realize the preliminary selection of toe slab control points in two ways; one is to combine the intersection line between the toe slab foundation surface and the corresponding weathered layer, and fully combine the three-dimensional geological model to conduct the preliminary selection of toe slab control points, ensuring the functionality of modeling based on the geological model.

[0045] Step 32: Adjust the plane position of the toe slab control points. Based on Step 31, the operation page will display the numbers, X / Y coordinates, and elevation information of all toe slab control points. The system can generate a geological information mapping diagram through automatic mapping according to the information of the toe slab control points. As Figure 7 shown in the geological information mapping diagram, it contains the elevation corresponding to different toe slab control points and the elevation values of different geological layers at the plane positions of the toe slab control points. Users can check whether the toe slab control points are within the founding rock mass range according to the geological information mapping diagram. If necessary, they can enter the drawing space to correct and adjust the plane position of the toe slab control points. This Step 32 is convenient for users to correct the plane position of the toe slab control points according to the founding principle through the generated geological information mapping diagram, improving the convenience and accuracy of determining the toe slab control points.

[0046] Step 33: Adjust the elevation of the toe slab control points. Specifically, after the plane position of the toe slab control points is basically confirmed, if the elevation of the toe slab control points needs to be rounded, the toe slab control point can be selected to realize the modification and adjustment of the elevation of the control point. The underlying logic of the elevation modification is that the toe slab control point moves in the direction of the line passing through the toe slab control point and perpendicular to the dam axis. This Step 33 allows for manual input of the elevation of the toe slab control points, with strong operability and high user initiative.

[0047] Step 34, verify the scheme of the toe plate foundation principle. Specifically, enter the extension length, click the "section" button, and follow the prompts to select the two endpoints of the section line to determine the range to be sectioned, select the fixed position of the longitudinal section after sectioning, and check whether the position of the extended toe plate foundation surface in the geological layer meets the toe plate foundation principle. The underlying logic of this step 34 is: in order to verify that the toe plate structure meets the toe plate foundation principle within the foundation width range, the spatial connection line of the toe plate control points can be extended upstream along the toe plate foundation surface for a certain length, and the relative relationship between the toe plate foundation surface and the geological layer of this length can be observed through sectioning to confirm that the toe plate foundation surface meets the toe plate foundation principle throughout the entire width range.

[0048] Step 35: Determine the toeboard control points. After verifying in Step 34 that the toeboard structure meets all the foundation principles within the foundation width, you can proceed to determine the toeboard control points. The system will automatically display the X / Y coordinates, elevation, and front and rear chain slope coefficients of all toeboard control points. This information can be exported in a table format.

[0049] Step 4: Determine the typical cross-sectional dimensions of the toeboard. The specific process is as follows:

[0050] Step 41: Select the toeboard control section to be designed, and then perform toeboard parameter design on the toeboard control line of the toeboard control section. Taking the toeboard control line Y3-Y4 as an example, the parameter setting process of the toeboard control line Y3-Y4 is described in detail. Figure 3 shown.

[0051] Step 42, calculate the toeboard width AB. After selecting the toeboard Y3-Y4 control segment, the first and last control points of the toeboard control line of this segment, namely the Y3 and Y4 toeboard control points, are automatically read and displayed. Figure 4 shown.

[0052] The underlying logic of this step 42 is: the calculation formula is toe plate width AB = H / hydraulic gradient. Through the determined toe plate control points (Y3 and Y4), the hydraulic head H (m) can be automatically calculated, that is, H = dam top elevation - H toe plate control point, that is, the hydraulic head H is equal to the dam top elevation minus the elevation of the toe plate control point. These two elevations can be read through the data of the previous step. The hydraulic gradient is the allowable hydraulic gradient of the bedrock under the toe plate. The system can automatically determine the geological weathering layer at this location based on the position of the toe plate control point, and the system defaults to the hydraulic gradient value. This value can be changed by the user according to the range required by the specification. After the user enters the hydraulic gradient value, the system automatically calculates the toe plate width AB according to the formula toe plate width AB = H / hydraulic gradient, and corrects the calculated value upward by the integer number of meters. For example, if the calculated value is 487cm\613cm, the correction value is 500cm / 700cm.

[0053] Step 43: Set the toe slab section parameters. The toe slab section parameters include four: the width AB of the toe slab, and this data can automatically read the toe slab width correction value in step S402; the thickness LAG of the toe slab, that is, the toe slab thickness of the flat section of the toe slab in the toe slab profile; the distance LYZ from the control point to the foundation surface, that is, the height from the control point of the toe slab to the AB section of the toe slab bottom foundation surface in the toe slab profile, usually also described as the toe slab height below the bottom surface of the panel. According to the specification requirements, it should be 0.8m - 1.0m, and the system default value is 0.9m, which can be modified by the user; the bottom height LBC of the toe slab, that is, the height of the downstream surface of the toe slab in the toe slab profile.

[0054] Step 44: Determine the position of the variable cross-section of the toe slab. When the toe slab width correction values calculated for the two control points of a certain section of the toe slab control line are inconsistent, it is recommended to select the existence of a variable cross-section position at this time. The system automatically calculates the station number of the toe slab variable cross-section position according to the dynamic interpolation method, and the user can also manually input and modify the variable cross-section position according to the needs. The underlying logic of this step is: supplement the layout rules of the station number and the principle of variable cross-section calculation.

[0055] Step 45: According to the above steps 41 - step 44, the user needs to set and add all the parameters of the first section and the last section of all the toe slab control lines such as Y1 - Y2, Y2 - Y3... YN - 1 - YN in sequence.

[0056] Step 5: Generate the toe slab intersection section model; the underlying logic of this step 5 is: automatically create a generation method of a toe slab connection section model. Taking the toe slab control sections of Y2 - Y3 and Y3 - Y4 as an example, after the user inputs the cutting distance, the system can automatically judge the water head sizes of the control points of Y2 and Y4. The water head is approximately the height difference between the dam crest elevation and the control point elevation. The system will cut the toe slab section with a smaller water head, and the cutting distance is the length of the toe slab that needs to be trimmed for the cut section, and automatically connect the corresponding profile points of the toe slab connection sections at both ends to form all the toe slab connection sections. Refer to Figure 5 as shown. This step 5 can minimize the project quantity on the premise of ensuring that the connection section structure meets the engineering requirements.

[0057] Step 6: Generate the 3D model of the toe slab. Specifically, based on the data set in the above steps, a 3D overall model of the toe slab structure can be created.

[0058] In summary, through the above steps, the 3D intelligent modeling of the toe slab structure of the concrete face rockfill dam is realized, solving the problems of difficult modeling of the toe slab body structure and difficult spatial positioning, and can accurately determine the foundation conditions of the toe slab; the model can achieve cross-platform data interaction with software such as reinforcement and calculation. By integrating advanced design technologies and algorithms, it not only improves the design accuracy and efficiency, but also enhances the management and application capabilities of design data, providing certain value for the technical advancement in the field of modern water conservancy and hydropower engineering design.

[0059] Example 2

[0060] Combine Figures 8-11 The construction method in Example 1 is implemented on a three-dimensional construction system for a face rockfill dam toe plate based on a three-dimensional geological model. The system includes: a toe plate foundation setting submodule, a toe plate control line design submodule, a toe plate typical profile design submodule, and a toe plate connection segment design submodule. The toe plate foundation setting submodule, the toe plate control line design submodule, the toe plate typical profile design submodule, and the toe plate connection segment design submodule perform data transmission in sequence.

[0061] In this embodiment, the toe plate foundation setting submodule is used to collect and set the required benchmark information such as the coordinate system and visualization range of the toe plate structure, the toe plate design benchmark positioning, the parameter setting of the toe plate foundation surface, the toe plate control point foundation establishment principle, and the intersection line target between the toe plate foundation surface and the geological weathering layer.

[0062] In this embodiment, the toe plate control line design submodule is used to assist the user in making a preliminary selection of toe plate control points based on the three-dimensional geological model; based on the automatically generated geological information mapping information, the plane position and elevation of the toe plate control points are adjusted to determine the toe plate control points to facilitate the plane alignment of the toe plate; and at the same time, it can verify whether the toe plate structure meets all the toe plate foundation principles within the foundation width range.

[0063] In this embodiment, the toe plate typical profile design submodule can input the parameter information of the head and tail profiles corresponding to each toe plate control line, and some parameters can input default data according to the calculation formula built into the system; it can assist the user in automatically calculating the toe plate interface size and the toe plate transition section position based on the plane control points.

[0064] In this embodiment, the toe plate connection section design submodule can automatically calculate the sectioning position based on the water head applied at the toe plate control point of each toe plate control section, and automatically connect the two toe plate sections.

[0065] After the above module designs are completed, the three-dimensional model of the toe board can be generated.

[0066] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions of the technical solution of the present invention by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the present invention.

Claims

1. A three-dimensional construction method for the toe slab of a concrete face rockfill dam based on a three-dimensional geological model, characterized in that, It includes the following steps: Step 1: Set the basic information parameters for the design of the toe slab; Step 2: Determine the foundation establishment principle of the toe slab; Step 3: Generate the control points of the toe slab and judge the foundation establishment principle; Step 4: Determine the typical section dimensions of the toe slab, including the calculation of the variable cross-section position of the toe slab; Step 5: Generate the model of the cross-section of the toe slab; Step 6: Generate the 3D model of the toe slab; Among them, In Step 2, the process is as follows: Step 21: Select the foundation establishment principle for the control points of the toe slab to control the control points of the toe slab within the rock mass where they are located; Step 22: Set the intersection line target based on the selected weathered layer. The intersection line target refers to the intersection line between the foundation surface of the toe slab and the corresponding selected weathered layer; In Step 3, the process is as follows: Step 31: Input the initially selected control points of the toe slab design: There are two input methods. One input method is to select points on the screen, and the other input method is text input. When selecting points on the screen, the intersection line between the foundation surface of the toe slab generated in Step 22 and the corresponding weathered layer is used to assist in selecting the control points of the toe slab. When selecting points, manually select the control points of the toe slab within the relevant intersection line boundary to ensure that the selected control points of the toe slab are coplanar. When using text input, by loading a text file, the existing control points of the toe slab determined by the user in other ways are imported into the system; Step 32: Adjust the planar position of the control points of the toe slab: The system automatically generates a geological information mapping diagram based on the information of the control points of the toe slab. The user checks whether the control points of the toe slab are within the foundation rock mass range according to the geological information mapping diagram. If necessary, enter the drawing space to correct and adjust the planar position of the control points of the toe slab; Step 33: Move the control points of the toe slab in the direction of the straight line passing through the control points of the toe slab and perpendicular to the dam axis to adjust the elevation of the control points of the toe slab; Step 34: Verify the scheme of the foundation establishment principle of the toe slab: By extending the spatial connection line of the control points of the toe slab upward along the foundation surface of the toe slab for a certain length, and observing the relative relationship between the foundation surface of the toe slab of this length and the geological layer through sectioning, confirm that the entire width range of the foundation surface of the toe slab meets the foundation establishment principle of the toe slab; Step 35: Determine the control points of the toe slab.

2. The three-dimensional construction method of the toe slab of a concrete face rockfill dam based on a three-dimensional geological model according to claim 1, characterized in that, In Step 1, the process is as follows: Step 11: Select the graphic space coordinate system and frame the visualization range that needs to be displayed in the transparent geology; Step 12: Under the spatial coordinate system, pick up the design reference line of the toe slab of the panel rockfill dam and input the corresponding design parameters; Step 13: Set the parameters of the foundation surface of the toe slab.

3. The three-dimensional construction method of the toe slab of a concrete face rockfill dam based on a three-dimensional geological model according to claim 2, wherein, In Step 12, there are two design methods for the design reference line of the toe slab: One design method is to select the bottom line of the wave wall of the panel rockfill dam and set the corresponding elevation value H0 of the bottom of the wave wall; The other method is to select the dam axis of the panel rockfill dam and set the corresponding elevation value H1 of the dam top, the horizontal distance Dis from the dam axis to the bottom line of the most upstream side of the wave wall, the upstream azimuth, and the vertical distance △H between the dam top elevation and the bottom line of the wave wall.

4. The three-dimensional construction method of the toe slab of the concrete face rockfill dam based on the three-dimensional geological model according to claim 1, characterized in that In Step 22, the selected weathered layers include the terrain surface, the lower limit of full weathering, the lower limit of strong weathering, and the lower limit of weak weathering.

5. The three-dimensional construction method of the toe slab of a concrete face rockfill dam based on a three-dimensional geological model according to claim 1, characterized in that In Step 33, the adjustment process is as follows: After the planar position of the control points of the toe slab is confirmed, round the elevation of the control points of the toe slab, select the control points of the toe slab, and realize the elevation adjustment of the control points of the toe slab.

6. The three-dimensional construction method of the toe slab of the concrete face rockfill dam based on the three-dimensional geological model according to claim 1, characterized in that, In Step 4, the process is as follows: Step 41: Select a plinth control section to be designed, and perform plinth parameter design on the fore section and the stern section of the plinth control line of the plinth control section in sequence; Step 42, calculating the toeboard width AB; Step 43: Set the toe plate section parameters; Step 44, determining the position of the variable cross-section of the toe plate; Step 45: Set and add the parameters of the head and tail sections of all toe plate control lines.

7. A three-dimensional construction system for the toe slab of a concrete face rockfill dam based on a three-dimensional geological model, characterized in that Implementing the three-dimensional construction method of the toe plate of a face rockfill dam based on a three-dimensional geological model as described in any one of claims 1 to 6; It includes the toe board foundation setting submodule, toe board control line design submodule, toe board typical section design submodule, and toe board connection section design submodule; The plinth foundation setting submodule is used to collect and set the coordinate system and visualization range of the plinth structure, the plinth design benchmark positioning, the plinth foundation surface parameter setting, the plinth control point foundation establishment principle, and the benchmark information required for the intersection line target of the plinth foundation surface and the geological weathering layer; The plinth control line design submodule assists users in preliminarily selecting plinth control points based on the 3D geological model. Based on the automatically generated geological information map, the plinth control points are adjusted in plane and elevation to determine the plinth control points and facilitate plinth plane alignment. Simultaneously, the module verifies whether the plinth structure meets all plinth foundation principles within the foundation width. The plinth typical profile design submodule allows for input of parameter information for the head and tail sections corresponding to each plinth control line, with some parameters defaulted to the system's built-in calculation formulas. The module assists users in automatically calculating the plinth interface dimensions and plinth transition section positions based on the plane control points. The toe plate connection section design submodule automatically calculates the section position based on the water head applied at the toe plate control point of each toe plate control section, and automatically connects the two toe plate control sections.

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