An integration method for the overall model of earth-rock dam engineering based on BIM

Abstract

The present invention provides a method for integrating an overall model of an earth-rock dam project based on BIM, and belongs to the technical field of dam structure model integration. The present invention can promote integration and coordination between various structures and improve the work efficiency of the overall design. Step 1: obtain the selected earth-rock dam type and construct a component model attribute set; Step 2: set the dam axis; Step 3: based on the set dam axis, create dam structure sections respectively to form a cross-section profile integration family; Step 4: based on the cross-section profile integration family, form a three-dimensional model of each component, and then integrate the earth-rock dam model; Step 5: construct a three-dimensional geological model of the dam site area; Step 6: construct a site excavation model in combination with the earth-rock dam model to generate a three-dimensional geological model after excavation; Step 7: integrate the earth-rock dam model and the three-dimensional site model after excavation to form an overall model of the earth-rock dam project; Step 8: output the overall model of the earth-rock dam project.

Description

Technical Field

[0001] The present invention relates to the technical field of dam structure model construction, and in particular to a BIM-based integration method for an overall model of an earth-rock dam project. Background Art

[0002] Building Information Modeling (BIM) uses all relevant information and data from a construction project as its foundation to create a building model. It simulates the real-world information of a building through digital information simulation. It has eight key characteristics: information completeness, information relevance, information consistency, visualization, coordination, simulation, optimization, and plotting capability.

[0003] Currently, many mainstream BIM model design platforms utilize a method whereby different engineering components are created separately and then assembled into a complete project model. Earth-rockfill dams are common and important water-retaining structures in reservoirs. Commonly used earth-rockfill dams include homogeneous earth dams, earth-based impermeable body partitioned dams, rockfill face dams, and rockfill core dams. While these are typically linear structures, the complex topography and geology of the dam site, along with the large number and variation of cross-sections at the dam bottom, require the superposition of numerous hydraulic 3D model components, making overall assembly a daunting task. Furthermore, the overall model assembly is difficult to quickly and accurately position, requiring manual assembly, which significantly increases the probability of manual errors. This makes it difficult to form a cohesive model of the various dam structures, leading to significant information loss and discontinuities. Currently, the difficulty in integrating and synergizing these structural models leads to low efficiency and a significant waste of resources and costs, which is the primary reason for the current difficulty in promoting and applying BIM technology in water conservancy projects. Summary of the Invention

[0004] In response to the above technical problems, the present invention provides a BIM-based integration method for the overall model of earth-rock dam projects, which can promote the integration and collaboration between various structures and improve the work efficiency of the overall design.

[0005] The present invention provides a BIM-based integration method for an overall model of an earth-rock dam project, the integration method comprising:

[0006] Step 1: obtaining a selected earth-rock dam type, setting attribute items according to the earth-rock dam type, and constructing a component model attribute set corresponding to the earth-rock dam type based on the attribute items;

[0007] Step 2: Obtain the dam control elevation information, set the dam axis, and set the mileage stake numbers of the starting point, turning point, and end point of the dam axis. The dam control elevation information includes the dam crest elevation and water level information.

[0008] Step 3: Based on the set dam axis and the selected earth-rock dam type, create dam structure sections at the starting point, inflection point, and end point of the dam axis to form a cross-section profile integration family;

[0009] Step 4: Based on the cross-section profile integration family and the attribute sets of each component model, the cross-section partitions corresponding to each adjacent dam structure section are connected and filled by means of lofting or lofting fusion to form a three-dimensional model of each component, and then the earth-rock dam model is integrated;

[0010] Step 5: Construct a 3D geological model of the dam site area;

[0011] Step 6: Obtain the dam crest elevation, excavation extension distance, and slope gradient information, and combine the integrated earth-rock dam model with the constructed 3D geological model of the dam site area to generate a 3D geological model after excavation.

[0012] Step 7: synthesizing the earth-rock dam model and the three-dimensional site model after excavation to form an overall model of the earth-rock dam project;

[0013] Step 8: Output the overall model of the earth-rock dam project, the earth-rock dam model, the three-dimensional models of each component, and the earth excavation volume.

[0014] Furthermore, the step 1 includes:

[0015] Step 1.1: Obtain the selected earth-rock dam type;

[0016] Step 1.2: Based on the earth-rock dam type, attribute items are set. The attribute items at least include attribute type, attribute name, attribute value, value unit of each attribute item, and value range of each attribute item. The value range is a fixed value or an interval discrete value.

[0017] Step 1.3: Based on the earth-rock dam type, corresponding attribute items are retrieved to form attribute sets of each component model.

[0018] Furthermore, the earth-rock dam types include homogeneous earth dam, earth impermeable body partition dam, rockfill panel dam, and rockfill core dam.

[0019] Furthermore, the step 3 further includes:

[0020] Setting design parameters of the dam crest structure, wherein the dam crest structure includes a dam crest pavement structure and a wave-breaking wall structure;

[0021] Design parameters for dam foundation treatment are set, wherein the dam foundation treatment includes grouting a cover plate, consolidation grouting, and curtain grouting.

[0022] Furthermore, the step 4 includes:

[0023] Step 4.1: Reading each adjacent dam structure section in the cross-section profile integration family according to the cross-section profile integration family;

[0024] Step 4.2: Based on the attribute sets of each component model, connect and fill the corresponding sections within each adjacent dam structure section by means of lofting or lofting fusion to generate the 3D model of each component;

[0025] Step 4.3: Integrate the three-dimensional models of each component into the earth-rock dam model.

[0026] Furthermore, the step 5 includes:

[0027] Step 5.1: Based on the three-dimensional data of the terrain surface and the stratigraphic information of the borehole, the three-dimensional information of the surface data of each stratigraphic layer is calculated by using an inverse distance weighted algorithm to generate a three-dimensional surface of each stratigraphic layer;

[0028] Step 5.2: Generate a solid 3D geological model of the dam site area by filling solids between the 3D surfaces.

[0029] Furthermore, the step 6 includes:

[0030] The dam crest elevation, excavation extension distance, and slope gradient information of the earth-rock dam are obtained, the three-dimensional model of the earth-rock dam and the three-dimensional geological model are sheared together, and the slope is extended at the shearing edge position to generate a three-dimensional geological model after excavation.

[0031] Furthermore, between step 7 and step 8, the following steps are further included:

[0032] At the selected mileage pile number, by cutting the whole three-dimensional model of the earth-rock dam, a corresponding mileage cross-section diagram of the earth-rock dam is created;

[0033] According to the cross-section outline, a family is integrated and marked in the created earth-rock dam mileage cross-section drawing.

[0034] Furthermore, the step 8 includes:

[0035] Based on the parameters of the three-dimensional models of each component of the earth-rock dam model, the attribute types of the attribute items in the attribute set are matched with the categories of the corresponding components, and an earth-rock dam component engineering quantity information table is output, wherein the earth-rock dam component engineering quantity information table includes at least the excavated earth and rock volume.

[0036] Furthermore, the earthwork volume is the difference between the three-dimensional geological model of the dam site area and the three-dimensional geological model after excavation.

[0037] An embodiment of the present invention provides a BIM-based method for integrating an overall model of an earth-rock dam project. Based on the determination of the earth-rock dam's axis grid, terrain information, and geological data, the method integrates the design of the dam body structural sections at corresponding mileage pile numbers, constructs object-type data for the section partitions, utilizes the data associations between the dam body structural sections, especially the section partitions, integrates the component model attribute sets of the earth-rock dam project, rapidly generates a three-dimensional geometric model and data model of the earth-rock dam, and completes subsequent section drawing and engineering quantity output. This method significantly improves the design efficiency of the BIM three-dimensional model and the integrity of the model data information, allowing designers to focus on adjusting relevant specification data during section integrated design without having to worry about model assembly and parameter management. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0039] Figure 1 A schematic diagram of a homogeneous earth dam provided in an embodiment of the present invention;

[0040] Figure 2 A schematic diagram of a soil impermeable body partition dam provided in an embodiment of the present invention;

[0041] Figure 3 A schematic diagram of a rockfill face dam provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0043] The terms "include" and "have" and any variations thereof mentioned in the embodiments of the present invention are intended to cover non-exclusive inclusions.

[0044] The embodiment of the present invention discloses a method for integrating an overall model of an earth-rock dam project based on BIM, the method comprising:

[0045] Step 1: Obtain a selected earth-rock dam type, set attribute items according to the earth-rock dam type, and construct a component model attribute set corresponding to the earth-rock dam type based on the attribute items.

[0046] Specifically, step 1 includes:

[0047] Step 1.1: Obtain the selected earth-rock dam type.

[0048] Generally speaking, earth-rockfill dam types include homogeneous earth dams, earth-based impermeable zoned dams, rockfill face dams, and rockfill core dams. Different earth-rockfill dam types correspond to different internal components, which also differ in the construction of the specific earth-rockfill dam model, and also in the subsequent construction steps.

[0049] Step 1.2: Based on the earth-rock dam type, attribute items are set, and the attribute items at least include attribute type, attribute name, attribute value, value unit of each attribute item and value range of each attribute item, wherein the value range is a fixed value or an interval discrete value.

[0050] Step 1.3: Based on the earth-rock dam type, corresponding attribute items are retrieved to form attribute sets of each component model.

[0051] Each component model attribute set is unique. Based on the characteristics of a specific hydraulic component, specific attribute items are associated with it. The meaning of each component model attribute set is expressed through the combination of different attribute items. This allows attribute items to be associated with different component model attribute sets, allowing for repeated and efficient use of attribute items. Component model attribute sets can also be flexibly defined as needed.

[0052] Step 2: Obtain the dam control elevation information, set the dam axis, and set the mileage pile numbers of the starting point, turning point, and end point of the dam axis, wherein the dam control elevation information includes the dam top elevation and water level information.

[0053] Specifically, the dam controls elevation information, including dam crest elevation and water level information, to achieve dam crest elevation control and water level information sharing of buildings; sets the dam axis to achieve plane control of buildings; sets the mileage pile numbers of the starting point, turning point and end point of the dam axis to achieve the overall control axis network of the building.

[0054] Step 3: Based on the set dam axis and the selected earth-rock dam type, create dam structure sections at the starting point, inflection point and end point of the dam axis to form a cross-section profile integration family.

[0055] Among them, different parametric designs are required for different earth-rock dam types, as follows:

[0056] For the homogeneous earth dam model: it is necessary to set the structural design parameters of the anti-seepage body of each section to realize the parametric design of the anti-seepage body model; set the structural design parameters of the upstream dam slope of each section to realize the parametric design of the upstream dam slope model; set the structural design parameters of the downstream dam slope of each section to realize the parametric design of the downstream dam slope model.

[0057] For the soil anti-seepage body partition dam model: it is necessary to set the structural design parameters of the soil partition anti-seepage body of each section to realize the parametric design of the soil anti-seepage body model; set the design parameters of the dam drainage structure of each section, the dam drainage body includes vertical drainage and horizontal drainage body, to realize the parametric design of the dam drainage structure model; it is necessary to set the structural design parameters of each section of the downstream dam shell to realize the parametric design of the downstream dam shell model; set the structural design parameters of the upstream dam slope of each section to realize the parametric design of the upstream dam slope model; set the structural design parameters of the downstream dam slope of each section to realize the parametric design of the downstream dam slope model.

[0058] For the creation of rockfill core dam model: it is necessary to set the structural design parameters of the core wall anti-seepage body of each section to realize the parametric design of the core wall anti-seepage body model; set the structural design parameters of each section of the upstream dam shell to realize the parametric design of the upstream dam shell model; set the structural design parameters of each section of the downstream dam shell to realize the parametric design of the downstream dam shell model; set the structural design parameters of each section of the upstream dam slope to realize the parametric design of the upstream dam slope model; set the structural design parameters of each section of the downstream dam slope to realize the parametric design of the downstream dam slope model.

[0059] For the creation of rockfill face dam model: it is necessary to set the structural design parameters of the main rockfill area of ​​each section to realize the parametric design of the main rockfill area model; set the structural design parameters of the downstream rockfill area of ​​each section to realize the parametric design of the downstream rockfill area model; set the structural design parameters of the transition area of ​​each section to realize the parametric design of the transition area model; set the structural design parameters of the cushion area of ​​each section to realize the parametric design of the cushion area model; set the structural design parameters of the weight area of ​​each section to realize the parametric design of the weight area model; set the structural design parameters of the panel of each section to realize the parametric design of the panel model; set the structural design parameters of the upstream blanket area of ​​each section to realize the parametric design of the upstream blanket area model; set the structural design parameters of the downstream dam slope of each section to realize the parametric design of the downstream dam slope model.

[0060] Furthermore, regardless of dam type, design parameters for the dam crest structure and dam foundation treatment must be set. Specifically, the dam crest structure includes the dam crest pavement structure and wave-breaking wall structure, enabling parametric design of the dam crest structure model; the dam foundation treatment includes grouting the cap plate, consolidation grouting, and curtain grouting, enabling parametric design of the dam foundation treatment model.

[0061] Step 4: Connect and fill adjacent dam structure sections according to the cross-section profile family and the attribute set by means of lofting or lofting fusion to construct the earth-rock dam model;

[0062] Specifically, step 4 includes:

[0063] Step 4.1: Reading each adjacent dam structure section in the cross-section profile integration family according to the cross-section profile integration family;

[0064] Step 4.2: Based on the attribute sets of each component model, connect and fill the corresponding sections within each adjacent dam structure section by means of lofting or lofting fusion to generate the 3D model of each component;

[0065] Step 4.3: Integrate the three-dimensional models of each component into the earth-rock dam model.

[0066] Step 5: Construct a 3D geological model of the dam site area;

[0067] Specifically, step 5 includes:

[0068] Step 5.1: Based on the three-dimensional data of the terrain surface and the stratigraphic information of the borehole, the three-dimensional information of the surface data of each stratigraphic surface is calculated by using an inverse distance weighted algorithm to generate a three-dimensional surface of each stratigraphic layer.

[0069] Step 5.2: Generate a solid 3D geological model of the dam site area by filling solids between the 3D surfaces.

[0070] The present invention generates a three-dimensional geological model of the dam site area based on dam axis grid information, topographic information, and geological data. The topographic data is the three-dimensional surface coordinate data of the original terrain, including location and elevation information. The geological data is geological borehole data, including information on each stratum within the borehole and water level information.

[0071] Step 6: Obtain the dam crest elevation, excavation extension distance, and slope gradient information, and combine the integrated earth-rock dam model with the constructed 3D geological model of the dam site area to generate a 3D geological model after excavation.

[0072] Specifically, step 6 includes: obtaining the dam crest elevation, excavation extension distance, and slope gradient information of the earth-rock dam, shearing the three-dimensional model of the earth-rock dam constructed in step 3 and the three-dimensional geological model constructed in step 5, and extending the slope at the shearing edge position to generate a three-dimensional geological model after excavation.

[0073] Step 7: Synthesize the earth-rock dam model and the three-dimensional site model after excavation to form an overall model of the earth-rock dam project.

[0074] Furthermore, after step 7, the present invention creates a corresponding earth-rock dam mileage cross-section diagram by sectioning the entire 3D model at the selected mileage pile number. This is then annotated in the created earth-rock dam mileage cross-section diagram based on the cross-section profile family. This prepares for the output of step 8. Specifically, at a specific mileage pile number, the earth-rock dam model created in step 4 can be sectioned using the sectioning function of the BIM design software, quickly creating a corresponding cross-section diagram, which is the original earth-rock dam mileage cross-section diagram. The data information obtained through parametric design in the cross-section profile family in step 3 is then integrated into the mileage cross-section diagram, quickly adding the annotation information from the drawing to the mileage cross-section diagram in accordance with the requirements of the electronic drawing specifications for water conservancy and hydropower projects.

[0075] Step 8: Output the overall model of the earth-rock dam project, the earth-rock dam model, the three-dimensional models of each component, and the earth excavation volume.

[0076] Specifically, step 8 includes: based on the parameters of the three-dimensional models of each component of the earth-rockfill dam model, matching the attribute types of the attribute items in the attribute set with the corresponding component categories, and outputting an earth-rockfill dam component quantity information table, wherein the earth-rockfill dam component quantity information table includes at least the amount of excavated earth and rock. The earth-rockfill dam component quantity information table can be preset with a template for easy subsequent use.

[0077] Specifically, the earthwork volume is the difference between the three-dimensional geological model of the dam site area and the three-dimensional geological model after excavation.

[0078] In summary, the embodiments of the present invention provide a BIM-based method for integrating the overall model of an earth-rock dam project. Based on the determination of the earth-rock dam axis grid, terrain information, and geological data, the dam body structural sections at the corresponding mileage pile numbers are integrated and designed, and object-type data for the section partitions is constructed. By utilizing the data associations between the dam body structural sections, especially the section partitions, the component model attribute sets of the earth-rock dam project are integrated to rapidly generate a three-dimensional geometric model and data model of the earth-rock dam, and to complete the subsequent section drawing and engineering quantity output. This method can significantly improve the design efficiency of the BIM three-dimensional model and the integrity of the model data information, allowing designers to focus on adjusting the relevant specification data during the section integrated design without having to consider model assembly and parameter management.

[0079] like Figure 1, when the homogeneous earth dam section pile number 1 is set to 0+000.00, the section pile number 2 is set to 0+060.00, and the section pile number 3 is set to 0+100.00; the anti-seepage body structural parameters are: top width = 8m, upstream dam slope level = 3, upstream first-level dam slope ratio = 1:2.5, upstream second-level dam slope ratio = 1:2.75, upstream third-level dam slope ratio = 1:2.75, upstream first-level dam slope height = 15m, upstream second-level dam slope height = 15m, upstream third-level dam slope height = 10m, upstream first-level bridleway width = 3m, upstream second-level bridleway width = 3m, downstream dam slope level = 3, downstream first-level dam slope ratio = 1:2.5, downstream second-level dam slope ratio = 1:2.75, downstream third-level dam slope ratio = 1:3, downstream first-level dam slope height = 14m, downstream second-level dam slope height = 14m, downstream third-level dam slope height = 13m, downstream first-level bridleway width = 3m, downstream second-level bridleway width = 3m; upstream dam slope structural parameters: concrete slope thickness = 0.2m, bridleway thickness = 0.2m, number of cushion layers = 2, thickness of each cushion layer = 0.15m; upstream tooth wall parameters: height = 0.8m, bottom width = 0.4m, upstream side slope ratio = 1:0.5, downstream side slope ratio = 1:0.5; downstream dam slope structure parameters: turf slope protection thickness = 0.05m, bridleway thickness = 0.2m, number of bridleway cushion layers = 2, thickness of each cushion layer = 0.15m; upstream drainage ditch parameters: clear height = 0.8m, clear width = 0.5 m, two walls are vertical, wall thickness = 0.3m, bottom plate thickness = 0.3m; among the parameters of the dam top wave wall: bottom width = 3m, wall thickness = 0.3m, total wall height = 2m, wall toe thickness = 0.4m, wall toe width = 0.2m, wall heel thickness = 0.4m, wall heel slope ratio = 1:3, downstream vertical part height = 1m; among the pavement parameters: pavement thickness = 0.2m, pavement stabilization layer thickness = 0.2m; curb width = 0.2m, height = 0.5m; the result is Figure 1 shown.

[0080] Example 2, soil impermeable body partition dam:

[0081] like Figure 2, when the soil anti-seepage body partition dam section pile number 1 is set to 0+000.00, section pile number 2 is set to 0+060.00, section pile number 3 is set to 0+100.00, and section pile number 4 is set to 0+150.00; dam top width = 8m; anti-seepage body structural parameters: number of partitions = 4, slope ratio of Ⅰ-Ⅱ partition = -2, slope ratio of Ⅱ-Ⅲ partition = -2, slope ratio of Ⅲ-Ⅳ partition = 0.6, slope ratio of Ⅳ-transition layer partition = -0.6 (slope ratio is negative toward downstream), top width of zone Ⅰ = 3m, top width of zone Ⅱ = 8m, top width of zone Ⅲ = 0m, top width of zone Ⅳ = 3m, upstream dam slope level = 4, upstream first-level dam slope Ratio = 1:2.5, upstream secondary dam slope ratio = 1:2.75, upstream tertiary dam slope ratio = 1:2.75, upstream tertiary dam slope ratio = 1:3, upstream primary dam slope height = 12.9m, upstream secondary dam slope height = 12.5m, upstream tertiary dam slope height = 7m, upstream tertiary dam slope height = 5m, upstream primary bridleway width = 3m, upstream secondary bridleway width = 8m, upstream tertiary bridleway width = 3m; vertical drainage parameters: number of layers = 2, thickness of each layer = 1.5m; downstream dam shell parameters: number of downstream dam slope levels = 3, downstream primary dam slope ratio = 1:2.5, downstream secondary dam slope ratio = 1:2. 75. Downstream three-stage dam slope ratio = 1:3, downstream first-stage dam slope height = 12.9m, downstream second-stage dam slope height = 13m, downstream third-stage dam slope height = 12m, downstream first-stage bridleway width = 3m, downstream second-stage bridleway width = 3m; upstream dam slope structural parameters: concrete slope protection thickness = 0.2m, bridleway thickness = 0.2m, number of cushion layers = 2, cushion thickness per layer = 0.15m; upstream tooth wall parameters: height = 0.8m, bottom width = 0.4m, upstream side slope ratio = 1:0.5, downstream side slope ratio = 1:0.5; downstream dam slope structural parameters: turf slope protection thickness = 0.05m, bridleway thickness = 0 .2m, number of bridleway cushion layers = 2, thickness of each cushion layer = 0.15m; upstream drainage ditch parameters: clear height = 0.8m, clear width = 0.5m, two vertical walls, wall thickness = 0.3m, bottom plate thickness = 0.3m; crest wave wall parameters: bottom width = 3m, wall thickness = 0.3m, total wall height = 2m, wall toe thickness = 0.4m, wall toe width = 0.2m, wall heel thickness = 0.4m, wall heel slope ratio = 1:3, downstream vertical part height = 1m; pavement parameters: pavement thickness = 0.2m, pavement stabilization layer thickness = 0.2m; curb width = 0.2m, height = 0.5m; the result is Figure 2 shown.

[0082] Example 3, rockfill face dam:

[0083] like Figure 3, when the rockfill panel dam section pile number 1 is set to 0+000.00, the section pile number 2 is set to 0+060.00, and the section pile number 3 is set to 0+100.00; the dam crest width = 9m; the upstream slope ratio = 1:1.4, the upstream dam height = 66.5m; the downstream dam slope levels = 3, the downstream first-level dam slope ratio = 1:1.3, the downstream second-level dam slope ratio = 1:1.3, the downstream third-level dam slope ratio = 1:1.3, the downstream first-level dam slope height = 21.6m, the downstream second-level dam slope height = 24.5m, the downstream third-level dam slope height = 15.3m, the downstream first-level horseway width = 3m, the downstream Secondary bridleway width = 3m; concrete slab parameters: top thickness = 1:1.4, upstream slope ratio = 1:1.4, downstream slope ratio = 1:1.4; toe plate parameters: bottom width = 6.5m, thickness = 0.5m, top surface width = 4.5m, downstream vertical height = 0.3m; cushion layer parameters: top horizontal width = 3.44m, bottom cushion layer arranged horizontally, downstream slope ratio = 1:1.4, horizontal section thickness = 2m; special cushion layer parameters: top width = 1m, height = 2m, downstream slope ratio = 1:1; transition layer parameters: top horizontal width = 3.4 4m, the bottom cushion is arranged horizontally, the downstream side slope ratio is 1:1.4, and the horizontal section thickness is 2m. Among the rockfill dam parameters: the main rockfill area-downstream rockfill area boundary slope ratio is 1:0.4, the distance from the top of the downstream rockfill area to the dam crest is 8m, the top width of the downstream rockfill area is 14.6m, and the height of the downstream rockfill area is 38.1m. Among the dam crest wave-breaking wall parameters: bottom width is 5m, wall thickness is 0.5m, total wall height is 5.7m, wall toe thickness is 0.4m, wall toe width is 1m, wall heel thickness is 0.4m, wall heel slope ratio is 1:3, and the height of the downstream vertical part is 2m. Wall parameters: bottom width = 5m, wall thickness = 0.5m, total wall height = 4.5m, wall toe thickness = 0.4m, wall toe width = 0.5m, wall heel thickness = 0.4m, wall heel slope ratio = 1:3, downstream vertical part height = 1m; pavement parameters: pavement thickness = 0.4m, pavement stabilization layer thickness = 0.4m, pavement cross slope = 2%, sidewalk width = 1m, sidewalk thickness = 0.4m; cable trench parameters: clear width = 1m, two vertical walls, wall thickness = 0.1m, clear height = 0.6m, bottom plate thickness = 0.1m, cover plate thickness = 0.1m; the result is Figure 3 shown.

[0084] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0085] Finally, it should be noted that the above-described embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the above-described embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above-described embodiments within the technical scope disclosed by the present invention, or replace some of the technical features therein with equivalents. However, these modifications, changes, or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the technical solutions of the embodiments of the present invention. They should all be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A BIM-based integration method for the overall model of earth-rock dam engineering, characterized by: include: Step 1: Obtain a selected earth-rock dam type, set attribute items according to the earth-rock dam type, and construct a component model attribute set corresponding to the earth-rock dam type based on the attribute items; the earth-rock dam types include homogeneous earth dam, earth impermeable body partitioned dam, rockfill face dam, and rockfill core dam; Step 2: Obtain the dam control elevation information, set the dam axis, and set the mileage stake numbers of the starting point, turning point, and end point of the dam axis. The dam control elevation information includes the dam crest elevation and water level information. Step 3: Based on the set dam axis and the selected earth-rock dam type, perform parametric design and create dam structure sections at the starting point, inflection point, and end point of the dam axis to form an integrated family of section profiles. The parametric design at least includes: Setting design parameters of the dam crest structure, wherein the dam crest structure includes a dam crest pavement structure and a wave-breaking wall structure; Setting design parameters for dam foundation treatment, including grouting capping, consolidation grouting, and curtain grouting; Step 4: Based on the cross-section profile integration family and the attribute sets of each component model, the cross-section partitions corresponding to each adjacent dam structure section are connected and filled by lofting or lofting fusion to form a three-dimensional model of each component, and then the earth-rock dam model is integrated; specifically, the steps include: Step 4.1: Reading each adjacent dam structure section in the cross-section profile integration family according to the cross-section profile integration family; Step 4.2: Based on the attribute sets of each component model, connect and fill the corresponding sections within each adjacent dam structure section by means of lofting or lofting fusion to generate the 3D model of each component; Step 4.3: Integrate the three-dimensional models of each component into the earth-rock dam model; Step 5: Construct a 3D geological model of the dam site area; specifically, the following steps are included: Step 5.1: Based on the three-dimensional data of the terrain surface and the stratigraphic information of the borehole, the three-dimensional information of the surface data of each stratigraphic layer is calculated by using an inverse distance weighted algorithm to generate a three-dimensional surface of each stratigraphic layer; Step 5.2: Generate a solid 3D geological model of the dam site area by filling solids between the 3D surfaces; Step 6: Obtain the dam crest elevation, excavation extension distance, and slope gradient information, and combine the integrated earth-rock dam model with the constructed 3D geological model of the dam site area to generate a 3D geological model after excavation. Step 7: synthesizing the earth-rock dam model and the three-dimensional site model after excavation to form an overall model of the earth-rock dam project; Step 8: Output the overall model of the earth-rock dam project, the earth-rock dam model, the three-dimensional models of each component, and the earth excavation volume.

2. The integration method according to claim 1, characterized in that The step 1 comprises: Step 1.1: Obtain the selected earth-rock dam type; Step 1.2: Based on the earth-rock dam type, attribute items are set. The attribute items at least include attribute type, attribute name, attribute value, value unit of each attribute item, and value range of each attribute item. The value range is a fixed value or an interval discrete value. Step 1.3: Based on the earth-rock dam type, corresponding attribute items are retrieved to form attribute sets of each component model.

3. The integration method according to claim 1, characterized in that The step 6 comprises: The dam crest elevation, excavation extension distance, and slope gradient information of the earth-rock dam are obtained, the three-dimensional model of the earth-rock dam and the three-dimensional geological model are sheared together, and the slope is extended at the shearing edge position to generate a three-dimensional geological model after excavation.

4. The integration method according to claim 1, characterized in that Between step 7 and step 8, the following steps are also included: At the selected mileage pile number, by cutting the whole three-dimensional model of the earth-rock dam, a corresponding mileage cross-section diagram of the earth-rock dam is created; According to the cross-section outline, a family is integrated and marked in the created earth-rock dam mileage cross-section drawing.

5. The integration method according to claim 1, characterized in that The step 8 comprises: Based on the parameters of the three-dimensional models of each component of the earth-rock dam model, the attribute types of the attribute items in the attribute set are matched with the categories of the corresponding components, and an earth-rock dam component engineering quantity information table is output, wherein the earth-rock dam component engineering quantity information table includes at least the excavated earth and rock volume.

6. The integration method according to claim 5, characterized in that The earthwork volume is the difference between the three-dimensional geological model of the dam site area and the three-dimensional geological model after excavation.

Images