Objectification and assembly type intelligent design method for concrete faced rockfill dam

Abstract

The invention provides a concrete faced rockfill dam objectification and assembly type intelligent design method which comprises the following steps: S1) according to design logic, disassembling the whole section of a concrete faced rockfill dam into a plurality of detail structures; s2) manufacturing the detail structure into parameterized parts, and assembling a plurality of parameterized parts into a typical cross section; s3) in the three-dimensional terrain, designating a dam axis, designing a longitudinal section and a typical cross section, and creating a BIM model; s4) customizing various styles in advance, reading point and line codes of the BIM model, and assigning styles for the codes; s5) extracting a calculation section from the BIM model, starting seepage stability calculation by one key, and synchronously generating a calculation report text; and S6) setting a section line and a chart style, and automatically extracting engineering quantity and drawings from the BIM model.The method has the advantages that the intelligent degree is high, the quality is high, the progress is fast, repeated work is avoided, parameters can be updated through one key, the time for design, check and review is saved, and quality improvement and efficiency improvement are achieved.

Description

Technical Field

[0001] This invention relates to the field of intelligent design technology for water conservancy and hydropower projects, specifically to an object-oriented and prefabricated intelligent design method for panel rockfill dams. Background Technology

[0002] Rockfill dams with face panels are a common type of dam in modern water conservancy projects, with advantages such as strong adaptability, fast construction speed, and relatively low cost. The structure of a rockfill dam with face panels mainly consists of rockfill body, anti-seepage face panels, toe slab, and foundation treatment. The core of its design is to ensure the anti-seepage performance and stability of the dam body, while taking into account the feasibility and economy of construction.

[0003] The main tasks in the design of a rockfill dam with concrete panel include site selection, dam cross-section design, anti-seepage system design, foundation treatment plan formulation, stability analysis, and engineering quantity calculation. These tasks require extensive engineering experience and include a large number of time-consuming and labor-intensive routine tasks such as structural design, engineering quantity calculation, drawing, and report writing.

[0004] Taking dam site selection and design as an example, the main factor in dam site selection is finding a suitable toe slab location, placing it on a bedrock with good impermeability, avoiding unfavorable geological factors as much as possible, and ensuring the toe slab X-ray is as straight as possible to reduce longitudinal deformation gradient. Improper toe slab X-ray alignment can lead to passive construction situations such as multiple excavations and plain concrete filling, wasting construction time. In actual projects, due to the presence of overburden layers and unpredictable geological undulations, the bedrock conditions at the toe slab cannot be fully grasped. Often, after the bedrock is exposed during construction, further adjustments to the toe slab X-ray are required (referred to as secondary alignment). Therefore, the toe slab X-ray layout is a process of multiple comparisons and selections, requiring repeated cross-sections to check geological conditions, resulting in a large amount of inefficient and repetitive work. In addition, the toe slab X-ray must be coordinated with the overall layout and structure of the rockfill dam. Each X-ray adjustment leads to significant modifications to subsequent design contents such as the excavation of the face and dam foundation, increasing the design difficulty and uncertainty.

[0005] Based on the above problems, traditional panel rockfill dam design methods are inefficient and labor-intensive, proving inadequate for complex geological conditions or large-scale projects. In recent years, with the development of digital technology, researching and developing intelligent design methods and tools for panel rockfill dams has become an important direction for improving design efficiency and quality, and a practical requirement for the high-quality development of water conservancy projects. Summary of the Invention

[0006] The purpose of this invention is to provide a highly intelligent, high-quality, fast-progression, and repetitive work-avoiding object-oriented and prefabricated intelligent design method for panel rockfill dams.

[0007] The principle of this invention is as follows: Based on the design logic, the overall cross-section of the panel rockfill dam is decomposed into multiple detailed structures. These detailed structures are then fabricated as parametric components and assembled into typical cross-sections. Next, a BIM model is created in a 3D terrain by specifying the dam axis, design longitudinal section, and typical cross-section. Calculation sections are extracted from the BIM model, and seepage stability calculations are initiated with a single click, simultaneously generating a calculation report. Finally, profile lines are set, and quantities are automatically calculated and drawn. This method, combined with software development, creates a design tool that uses an "object + style" approach to achieve object-oriented, modular design, dynamically linking and updating drawings, models, and quantities.

[0008] For water conservancy and hydropower projects, design optimization and adjustments are constantly needed, which increases the design difficulty and slows down the design schedule. Traditional design methods require a lot of repetitive work according to design specifications, and cutting surfaces and drawing are time-consuming and laborious, inevitably leading to oversights. The design, verification, and review stages mainly correct deviations in the results, which is inefficient. This design method is equivalent to adding a correction stage to the parametric design process, which can promote the transformation and upgrading of the design paradigm. Designers mainly focus on the design of horizontal, vertical, and transverse elements and the creation of digital models of panel rockfill dams. Drawings and quantities are automatically generated "byproducts," allowing more energy to be devoted to refining the scheme and greatly reducing the human error rate.

[0009] In short, the present invention includes the design, calculation, and output of panel rockfill dams. Figure 1 An integrated approach combining "methods, tools, and processes" can enhance the automation and intelligence of panel rockfill dam design. Engineers handle the creative aspects, while the mechanical work is handled by computers.

[0010] To achieve the above objectives, the present invention is implemented through the following technical solution: An object-oriented and prefabricated intelligent design method for panel rockfill dams includes the following steps: S1) Based on the design logic, the overall cross-section of the panel rockfill dam is broken down into multiple detailed structures.

[0011] Rockfill dams with concrete-faced panels are typical hydraulic structures, and their shape is closely related to the topographic and geological conditions of the dam site. Therefore, each rockfill dam with concrete-faced panels is unique, and its design is a typical non-standard design. Adopting a design philosophy of achieving standardization and then parameterization through discretization, the overall cross-section is divided into multiple detailed structures based on the structural characteristics of rockfill dams with concrete-faced panels, including but not limited to the concrete face, toe slab, cushion layer, transition layer, main rockfill zone, secondary rockfill zone, and dam foundation excavation.

[0012] The design of a panel dam involves three aspects: horizontal, vertical, and transverse. Horizontal refers to the plane axis, defining the dam's location; vertical refers to the elevation change along the axis, defining the dam's height; and transverse refers to the cross-section perpendicular to the dam axis, defining the dam's internal structure. These three aspects are independent of each other, but together they define the panel dam.

[0013] S2) The detailed structure is fabricated as parametric components, and multiple parametric components are assembled into a typical cross-section.

[0014] S21) Draw the structural shape by connecting points to form lines; S22) Based on engineering experience, design parameter tables and code tables for each parameterized component.

[0015] Specifically, parameters are used to drive changes in the shape of components, including dimensional parameters and target parameters. For example, the bottom width of a toe plate can be driven by a "toe plate bottom width" dimensional parameter to create a toe plate with a uniform bottom width, or it can be driven by a polyline as a planar target to create a toe plate with a widening bottom. Appropriate settings of dimensions and targets allow parametric components to meet the design requirements of arbitrarily complex structures. Codes are equivalent to the IDs of each structural point and line. In subsequent steps, codes are used to specify object styles and annotation styles for each point and line, enabling rule-based automatic drawing and quantity calculation. For example, if the midpoint of the dam crest is designated as the code "EL," and in a subsequent step, the "EL" code specifies an elevation annotation, the dam crest elevation will be automatically annotated at the midpoint of the dam crest in the cross-sectional view.

[0016] Many design ingenuity can be incorporated into the fabrication of parametric components. Too few parameters will prevent the structure from changing; too many parameters will make it cumbersome to use. A balance must be struck between versatility and flexibility. Furthermore, parameters can be transferred between different parametric components; for example, the excavation width at the bottom of the panel is related to the dam height, so the dam height from the panel component can be output and passed to the excavation bottom width parameter in the dam foundation excavation component. Details are as follows: ① First, define the output parameters in the panel component: Dam height = P1.y - P2.y (P1 is the top of the dam, P2 is the bottom of the panel, P2 is the intersection of the toe plate X line starting from point P1 and sloping according to the panel design slope ratio). The dam height at each station number is automatically calculated.

[0017] ② In the dam foundation excavation component, define the parameter: excavation bottom width = 0.5 × dam height.

[0018] The above process achieves the effect of high dam height and wide dam foundation excavation in the riverbed section, and low dam height and narrow dam foundation excavation in the sections on both banks.

[0019] S3) In the 3D terrain, specify the dam axis, design longitudinal section and typical cross section to create a BIM model.

[0020] In the design method of this invention, the dam axis, longitudinal section, cross section and BIM model are all objects. The terrain, dam axis, longitudinal section and cross section elements jointly define the BIM model, and the above four elements are dynamically related to the BIM model. That is, when the dam axis, longitudinal section and cross section are adjusted, the BIM model can be automatically updated with one click.

[0021] In step S3), the parameters in S2) are modified according to the scheme specifications; for example, if the dam foundation excavation boundary line uses "clear foundation surface" as the terrain target, the slope line will be automatically generated; if the secondary rockfill area top line uses "secondary rockfill top longitudinal section" as the elevation target and the secondary rockfill top longitudinal section.ISVALID logical judgment statement is set, then the secondary rockfill area will be created within the chainage range where the secondary rockfill top longitudinal section is located, and the secondary rockfill area will not be created in the remaining range.

[0022] During this process, the BIM model of the panel rockfill dam can be viewed in 3D at any time, enabling X-ray visualization design of the toe slab.

[0023] S4) Pre-customize various styles, read the point and line codes of the BIM model, and specify styles for each code.

[0024] The design method of this invention provides corresponding styles for various objects such as dam axis lines, longitudinal sections, cross sections, and BIM models, which can be specified or customized as needed. Styles include object styles and annotation styles. Taking a line object in a cross section as an example, its object style includes line width, line type, color, and dot symbols, while the annotation style includes annotations for line width, slope, and height, specifically including the font, font height, and width factor of the annotation text. Annotation content can be manually entered or extracted from the line object and automatically filled in.

[0025] The above style settings can be saved to a template file, thus providing designers with an initial software environment, avoiding secondary settings for similar tasks, and improving work efficiency.

[0026] S5) Extract the calculation cross section from the BIM model, start the seepage stability calculation with one click, and generate the calculation report text simultaneously.

[0027] Specifically, the calculation model is extracted from the dam cross section and output as a text-based calculation file. The solver is then called to perform the calculation automatically, providing a new collaborative working mode for design calculations.

[0028] S6) Set section lines and chart styles to automatically extract quantities and drawings from the BIM model.

[0029] By setting profile lines (which can be polyline profile lines) at any location, the cross-section of the dam can be cut, and the styles of soil-rock boundary lines, strongly weathered and weakly weathered bedrock lines can be set. The system can automatically generate drawings and add drawing frames, and output a drawing catalog. The system can extract bevel lines from excavation components and mark land acquisition lines and coordinate tables. The system can extract entities of panels, toe slabs, cushion layers, transition layers, main rockfill areas, and secondary rockfill areas from the BIM model, and the volume can be queried with one click.

[0030] In summary, the design of a panel dam involves first determining the structural form (steps S1 to S4), then calculating the safety of that structural form (step S5). If step S5 is deemed unsafe, the design must return to the previous form design stage, adjust the plan (i.e., horizontal, longitudinal, and transverse elements), and recalculate the safety again. This process is repeated until a safety calculation is passed, and the calculation report is an essential part of the design. After passing the safety calculation, step S6) is performed to calculate the economic efficiency. The economic efficiency calculation refers to assessing the workload of the current plan, aiming to minimize the workload and save investment while maintaining safety.

[0031] The design method of this invention is object-oriented, where objects are interconnected. Changes in one object can be automatically transmitted to the associated target objects, thereby improving design efficiency and accuracy. In the above steps, the BIM model is associated with the dam axis, the dam crest longitudinal section, and typical cross sections, and the association parameters can be adjusted as needed at any time during these steps. Through this method, the current design, calculation, and drawing process of panel rockfill dams is transformed from a data-closed, fragmented approach to a data-sharing, collaboratively coupled approach, realizing integrated design, calculation, and drawing... Figure 1 Integration.

[0032] Compared with the prior art, the present invention has the following advantages: This invention provides an object-oriented and prefabricated intelligent design method for panel rockfill dams. It features a high degree of intelligence, high quality, and fast progress, avoids repetitive work, allows for one-click parameter updates, and saves time in design, verification, and review. It reduces the work that would take weeks to complete in minutes, thereby improving efficiency and effectiveness.

[0033] Specifically, even designers without prior experience in panel rockfill dam design can easily perform cross-sectional design, quantity calculation, drafting, and report writing for panel rockfill dams using this parametric intelligent design method. The associative design approach, along with its automatic update function, significantly enhances automation. Furthermore, by continuously accumulating parametric components and various drawing styles for panel rockfill dams, design-related resources can be applied to multiple projects, resulting in a general improvement in efficiency. The time-consuming early-stage design work also stems from frequent modifications. In traditional design methods, design schemes exist in the designer's mind, and drawing is the process of expressing these schemes. Design schemes are transmitted through drawings, and other personnel involved in construction reproduce the design schemes in their minds by reviewing and analyzing the drawings. However, this design method presents design schemes in an intuitive way and can automatically extract drawings and quantities, greatly reducing the time spent. Design work can truly return to the conceptualization stage of the scheme, rather than simply being repetitive drafting work. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the method flow of the present invention.

[0035] Figure 2 This is a schematic diagram illustrating the design principle of the present invention.

[0036] Figure 3 This is an exploded view of the panel rockfill dam structure of the present invention.

[0037] Reference numerals: 1. Toe plate structure; 2. Panel structure; 3. Downstream slope structure; 4. Rockfill structure; 5. Crest structure. Detailed Implementation

[0038] The embodiments of the present invention will now be described in further detail with reference to the accompanying drawings.

[0039] like Figure 1 As shown, taking a panel rockfill dam project as an example, the present invention provides an object-oriented and prefabricated intelligent design method for panel rockfill dams, comprising the following steps: S1) Based on the design logic, the overall cross-section of the panel rockfill dam is broken down into multiple detailed structures. Table 1 shows the structural breakdown table of the panel rockfill dam.

[0040] Table 1. Structural Breakdown of Panel Rockfill Dams

[0041] like Figure 1 As shown, the overall cross-section of the rockfill dam is disassembled into toe slab structure 1, panel structure 2, downstream slope structure 3, rockfill body structure 4, and dam crest structure 5.

[0042] S2) The detailed structure is fabricated as parametric components, and multiple parametric components are assembled into a typical cross-section. Table 2 shows the toe plate parameter table, and Table 3 shows the panel parameter table.

[0043] Table 2 Toe Plate Parameter Table

[0044] Table 3 Panel Parameter Table

[0045] S3) In the 3D terrain, specify the dam axis, design longitudinal section, and typical cross-section to create a BIM model. Specify the topographic and geological surfaces, dam axis, design longitudinal section, and typical cross-section for constructing the panel rockfill dam model, and modify the parameters and target parameters.

[0046] S4) Pre-customize various styles, read the point and line codes of the BIM model, and assign styles to each code. Table 4 shows the classification table of cross-sectional object codes.

[0047] Table 4 Classification Table of Cross-Sectional View Object Codes

[0048] S5) Extract the calculation section from the BIM model, start the seepage stability calculation with one click, and generate a calculation report text simultaneously. Perform image rendering on the calculation results. Seepage calculation results include velocity vector, hydraulic gradient, head, water pressure, and phreatic line, while stability calculation results include sliding surface location and safety factor. Simultaneously, output the calculation inputs, calculation principles, and calculation result diagrams as a simplified calculation report Word file according to a formatted template.

[0049] S6) Set section lines and chart styles to automatically extract quantities and drawings from the BIM model.

[0050] Based on batch drawing of cross-sections, the working method of design, calculation and drawing is improved from decentralized and fragmented to collaborative and coupled, which can improve the automation and digitalization level of panel rockfill dam design.

[0051] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the concept of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for object-oriented and prefabricated intelligent design of panel rockfill dams, characterized in that... Includes the following steps: S1) Based on the design logic, the overall cross-section of the panel rockfill dam is broken down into multiple detailed structures; S2) The detailed structure is fabricated as parametric components, and multiple parametric components are assembled into a typical cross-section; S3) In the 3D terrain, specify the dam axis, design longitudinal section and typical cross section, and create a BIM model; S4) Pre-customize various styles, read the point and line codes of the BIM model, and specify styles for each code; S5) Extract the calculation cross section from the BIM model, start the seepage stability calculation with one click, and generate the calculation report text simultaneously; S6) Set section lines and chart styles to automatically extract quantities and drawings from the BIM model.

2. The object-oriented and prefabricated intelligent design method for panel rockfill dams according to claim 1, characterized in that: In step S1), the multiple detailed structures include, but are not limited to, the panel, toe plate, cushion layer, transition layer, main rockfill area, secondary rockfill area, and dam foundation excavation.

3. The object-oriented and prefabricated intelligent design method for panel rockfill dams according to claim 1, characterized in that: In step S2), the process of creating the parameterized component is as follows: S21) Draw the structural shape by connecting points to form lines; S22) Design the parameter table and code table for each parameterized component.

4. The object-oriented and prefabricated intelligent design method for panel rockfill dams according to claim 3, characterized in that: In step S22), parameters can be passed between different parameterized components.

5. The object-oriented and prefabricated intelligent design method for panel rockfill dams according to claim 1, characterized in that: In step S3), modify the parameters in step S2) according to the actual plan.

6. The object-oriented and prefabricated intelligent design method for panel rockfill dams according to claim 1 or 5, characterized in that: In step S3), when the dam axis, design longitudinal section, or typical cross section is modified or adjusted, the BIM model can be automatically updated with one click.

7. The object-oriented and prefabricated intelligent design method for panel rockfill dams according to claim 1, characterized in that: In step S4), various styles include object styles and annotation styles; the object styles include, but are not limited to, line width, line type, color, and dot symbols; the annotation styles include, but are not limited to, line width, slope, and height annotations.

8. The object-oriented and prefabricated intelligent design method for panel rockfill dams according to claim 1, characterized in that: This method is an object-oriented design, where changes made to one object can be automatically passed to the target associated object.

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