CN117708937A - Parameterized modeling method for reinforced concrete panel dam based on 3DE platform - Google Patents
Parameterized modeling method for reinforced concrete panel dam based on 3DE platform Download PDFInfo
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Abstract
The invention discloses a reinforced concrete face plate dam parametric modeling method based on a 3DE platform. Introducing a terrain surface model into 3 DE; creating a primary parameter of the control panel dam body type; creating a dam axis and a dam profile sketch through the primary parameters; stretching a dam outline sketch to create a dam enveloping body, and dividing the dam enveloping body with a terrain surface to obtain a dam body type design model and a corresponding engineering quantity; taking the dam body type design model as a panel dam body type design template; setting the structural dimensions of the panel, the cushion layer, the downstream rock-fill area and the rock-fill drainage area as secondary parameters; creating linkage of the primary and secondary parameters; creating a material partition sketch through the secondary parameters; stretching each material partition sketch to create a material partition enveloping body, and dividing the enveloping body with a terrain surface to obtain a material partition design model and a corresponding engineering quantity; and taking the material partition design model as a panel dam material partition design template. The invention can meet the design requirements of different design precision for the reinforced concrete face plate dam, and has high efficiency.
Description
Technical Field
The invention belongs to the technical field of BIM of hydropower engineering, and particularly relates to a reinforced concrete panel dam parameterized modeling method based on a 3DE platform.
Background
The reinforced concrete face plate dam has the advantages of local material availability, high filling efficiency, good adaptability to the topography and geological conditions and the like, is widely applied to hydraulic and hydroelectric engineering, has relatively complex structure and more material areas, is currently three-dimensional modeling through two-dimensional design means after finishing plane section design, and has no three-dimensional modeling means which can be conveniently modified and adjusted by parameterization. The existing modeling method is disposable, when the axis of the face dam changes, the elevation is adjusted, the size of a material partition is adjusted, the three-dimensional model needs to be modified and created again, and the model cannot be reused; secondly, three-dimensional modeling is performed after two-dimensional design is completed, and forward design by BIM means cannot be achieved.
In the design of hydraulic and hydroelectric engineering, especially pumped storage power stations, face plate dam schemes with different dam positions, elevations and structural dimensions need to be designed and selected, the number of schemes is large, the workload is large, and the efficiency of the traditional design means is low.
Disclosure of Invention
The purpose of the invention is that: a parameterized modeling method for a reinforced concrete face plate dam based on a 3DE platform is provided. The invention can meet the design requirements of different design precision for the reinforced concrete face plate dam, and has high design efficiency.
The technical scheme of the invention is as follows: a parameterized modeling method of a reinforced concrete face plate dam based on a 3DE platform comprises the following steps:
step 1: importing a terrain surface model into 3DE as a basis for creating a face dam model and calculating engineering quantity;
step 2: creating a primary parameter of the control panel dam body type; the primary parameters comprise plane coordinates of a central point of a dam axis, plane coordinates of any point of a right bank, dam top elevation, dam top width, upstream slope ratio and downstream slope ratio;
step 3: creating a dam axis and a dam profile sketch through input primary parameters;
step 4: stretching a dam outline sketch to create a dam enveloping body, and dividing the dam enveloping body with a terrain surface to obtain a dam body type design model and a corresponding engineering quantity;
step 5: taking the dam body type design model as a panel dam body type design template to realize modeling in a planning stage and engineering calculation requirements;
step 6: setting the structural dimensions of the panel, the cushion layer, the downstream rock-fill area and the rock-fill drainage area as secondary parameters; simultaneously creating linkage of the primary parameter and the secondary parameter, and automatically inputting the secondary parameter according to the primary parameter value;
step 7: creating a material partition sketch through the secondary parameters;
step 8: stretching each material partition sketch to create a material partition enveloping body, and dividing the enveloping body with a terrain surface to obtain a material partition design model and a corresponding engineering quantity;
step 9: and taking the material partition design model as a panel dam material partition design template to realize modeling in a pre-controllable stage and the engineering calculation requirement.
In the method for parameterizing and modeling the reinforced concrete panel dam based on the 3DE platform, in the step 3, the dam axis is established through the plane coordinates of the center point of the dam axis and any point on the right bank; taking the center point of the dam axis as a datum point, and creating a normal surface of the dam axis as a supporting surface of the dam axis center surface and a dam contour; and creating a sketch of the dam outline on the supporting surface, and constraining parameters of dam crest width, dam crest elevation, upstream-downstream slope ratio and corresponding dimensions in the sketch to complete a parameter-driven dam outline sketch model.
In the method for parameterizing and modeling the reinforced concrete face plate dam based on the 3DE platform, in the creation of the outline sketch of the dam, the initial elevation is set to be 300m.
In the above-mentioned parameterized modeling method of the reinforced concrete face plate dam based on the 3DE platform, in step 4, the contour of the dam body is stretched to two sides along the axis of the dam to be an enveloping body, and the initial length is set to 2000m; dividing the generated dam enveloping body and the terrain surface, judging a plurality of divided enveloping body models, and selecting the enveloping body closest to the center point of the dam to remain as the dam to obtain a dam body type design model; and creating a dam total filling quantity parameter, wherein the dam total filling quantity parameter is the total volume of the dam body type design model measured after the dam total filling quantity parameter is divided.
In the foregoing method for parameterizing and modeling a reinforced concrete panel dam based on a 3DE platform, in step 5, the template is made using the knowledge engineering template function of 3DE, and the model created in steps 1 to 4 is made into a panel dam design template, with the topography surface and the corresponding primary parameters as input conditions.
In the above-mentioned reinforced concrete panel dam parametric modeling method based on 3DE platform, in step 6, the secondary parameters are used for material partition design; according to the design specification of the panel dam material partition and engineering experience, the panel dam material partition is divided into a wave wall, a panel, a cushion layer area, a transition area, a main rock-fill area, a downstream slope protection area, a water interception wall, a downstream rock-fill area, a rock-fill drainage area, a clay covering area and a fly ash covering area; meanwhile, summarizing the mutual constraint relation among typical partitions, and simplifying the structural size parameters into secondary parameters; then according to the standard and design experience, automatically calculating the default value of the secondary parameter according to the input value of the primary parameter; according to the design experience of the face plate dams with different dam heights, initial values of parameters such as the height of the wave wall, the thickness slope ratio of the face plate, the downstream slope protection and the like are given, and a user can obtain an accurate model according to actual design parameters by only modifying part of parameters; the parameter assignment operation is set through the knowledge engineering reaction of 3DE, the primary parameter is used as a trigger condition, the secondary parameter is automatically operated and assigned, and the parameter can be modified.
In the method for parameterizing and modeling the reinforced concrete panel dam based on the 3DE platform, the material partition sketch supporting surface and the datum point in the step 7 are consistent with the outline sketch of the dam in the step 3; constraining the structure size of each partition and the parameters set in the step 6 to finish a parameter-driven dam material partition sketch model; the initial elevation parameters of the material areas connected with the terrain surface, such as the fly ash covering area, the clay covering area, the main rock-fill area and the like, are consistent with those in the step 3.
In the above-mentioned parameterized modeling method of the reinforced concrete face plate dam based on the 3DE platform, in step 8, stretching the contour sketch of each material partition to two sides along the axis of the dam to form an envelope, and setting the initial length to 2000m; dividing the generated enveloping body of each material partition with the terrain surface, judging a plurality of divided enveloping body models, selecting the enveloping body nearest to the center point of the dam as a final material partition, and obtaining a dam material partition design model; and creating engineering quantity parameters of each material partition, and enabling the engineering quantity parameters to be the design model volume of each material partition measured after the engineering quantity parameters are segmented.
In the method for parameterizing and modeling the reinforced concrete panel dam based on the 3DE platform, the template in the step 9 is manufactured by using the knowledge engineering template function of 3DE, and the terrain surface in the step 1 and the panel dam body design model created in the step 5 are used as input conditions; creating a dam body type design model by instantiating a body type design template when the scheme feasibility design is carried out; when the economic comparison of the further scheme is carried out, continuously instantiating a material partition design template, automatically calculating corresponding secondary parameters, and creating a dam material partition model after modifying the corresponding parameters according to the design; when multiple schemes such as different dam axis positions, different dam top elevations and the like are compared, the model can be updated in real time by changing corresponding parameters, and corresponding engineering quantity is output.
Advantageous effects
Compared with the prior art, the invention can realize the parametric modeling of the panel dam, and the three-dimensional model and the engineering quantity of the new scheme can be obtained by only changing a small amount of parameters when different schemes are compared and selected.
The invention classifies design parameters, thereby creating models with different precision, and effectively meeting the precision requirements of different design stages on the models, such as: the planning stage may only require the total filling volume of the dam for preliminary judgment of whether the scheme is viable; the pre-availability stage needs to obtain the engineering quantity of main material partition for comparing and selecting the economy of the scheme; relatively accurate excavation and structural zoning engineering quantities are required in the lapping stage for calculating scheme investment.
The invention realizes the three-dimensional forward design of the face dam. Firstly summarizing the design specification of the face dam, embodying the arrangement type and the structure size of the face dam into the change of parameters, driving the reinforced concrete face dam model by the parameters, and modifying the parameters when the position, the elevation and the structure size of the dam are adjusted, so that the three-dimensional model and the engineering quantity of the new scheme can be rapidly obtained, and the repeated utilization of the model is realized. And according to the design experience of the face dam and the requirements of model precision in different design stages, the parameters are subjected to hierarchical management and mutual operation constraint, a basic model can be created and corresponding engineering quantity is output by inputting a small amount of basic primary parameters, a secondary parameter default value and a default detail model can be automatically calculated according to requirements, a user can only partially modify the secondary parameters to obtain a final accurate model and output corresponding engineering quantity, the effect of intelligent design is realized, and the three-dimensional design efficiency of the face dam is improved. Specifically, the invention has the following beneficial effects:
(1) The invention parameterizes and templates the reinforced concrete face plate dam by analyzing the principle and rule of structural arrangement and body type size of the face plate dam, so that the differences of different positions, elevations and structural body types of the face plate dam can be expressed by parameters.
(2) The creation of the parameterized panel dam model is realized through a knowledge engineering module in the 3DE software, and the parameterized panel dam model is manufactured as a template, so that a user can quickly and accurately create the panel dam model by modifying basic parameters.
(3) Through analyzing the depth requirements of the design of the face dam, related parameters are classified, the most core and most basic arrangement parameter columns are first-level parameters, and a user can finish the creation of a basic face dam model by inputting a small amount of first-level parameters, so that the feasibility comparison and selection requirements of the most initial scheme are met. The main structural parameters are listed as secondary parameters, and a user inputs the secondary parameters to finish the primary panel dam material partition model creation, so that the further deepened scheme economy comparison and selection requirements are met.
(4) According to the structural design rule of the face dam, the relation between parameters is searched, the setting of the parameters is simplified, meanwhile, the parameter logical operation rule is endowed, the input of user parameters is reduced by driving the automatic assignment of secondary parameters through primary parameters, the creation of a relatively fine model can be automatically completed through fewer parameter inputs, and the accurate modeling requirement can be met by modifying a small quantity of parameters.
(5) The model is created and the parameters are associated and driven in a reasonable and stable modeling mode, so that the model after the parameters are modified can be updated correctly without errors.
(6) The created model can output corresponding engineering quantity, and meets the requirement of scheme comparison selection.
Drawings
FIG. 1 is a schematic diagram of a face dam body design parameter (primary parameter);
FIG. 2 is a diagram of a face-plate dam design model;
FIG. 3 is a block diagram of exemplary material of a face dam;
FIG. 4 is a schematic view of wave wall parameters;
FIG. 5 is a schematic diagram of panel parameters;
FIG. 6 is a schematic diagram of parameters of a mat;
FIG. 7 is a schematic diagram of transition zone parameters;
FIG. 8 is a schematic diagram of downstream slope protection parameters;
FIG. 9 is a schematic view of cutoff parameters;
FIG. 10 is a schematic view of downstream rockfill area parameters;
FIG. 11 is a schematic view of the rock-fill drainage zone parameters;
FIG. 12 is a schematic diagram of clay-covered zone parameters;
FIG. 13 is a schematic representation of fly ash coverage zone parameters;
fig. 14 is a face dam material zoning model.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not intended to be limiting.
Example 1. The parameterized modeling method of the reinforced concrete face plate dam based on the 3DE platform, see figures 1-14, comprises the following steps:
step 1: a terrain surface model is introduced in 3DE as a basis for face dam model creation and engineering quantity calculation.
Step 2: first-order parameters (shown in figure 1) of the control panel dam body type are created, wherein the first-order parameters comprise plane coordinates of a central point of a dam axis, plane coordinates of any point of a right bank (determining left and right banks and upstream and downstream directions of the dam), dam top elevation, dam top width and upstream and downstream slope ratio.
Step 3: creating a dam axis and dam contour sketch by the entered parameters,
step 4: and (3) stretching the dam outline sketch to create a dam enveloping body, and dividing the dam enveloping body and the terrain surface to obtain a dam body type design model (shown in figure 2) and engineering quantity.
Step 5: and (3) manufacturing the steps 1 to 4 into a panel dam body type design template, so that modeling and engineering quantity calculation requirements in a planning stage can be realized.
Step 6: the structural dimensions of the panel, the cushion layer, the downstream rock-fill area, the rock-fill drainage area and the like are set as secondary parameters (shown in figures 3-13). And simultaneously creating linkage of the primary parameter and the secondary parameter, and automatically inputting the secondary parameter according to the primary parameter value.
Step 7: a sketch of the material partition is created by the secondary parameters.
Step 8: and (3) stretching each material partition sketch to create a material partition envelope body, and dividing the material partition envelope body with a terrain surface to obtain a material partition design model (shown in figure 14) and engineering quantity.
Step 9: and (3) manufacturing the steps 6 to 8 into a panel dam material partition design template, so that modeling and engineering quantity calculation requirements in a pre-workable stage can be realized.
The dam axis in step 3 is created by the plane coordinates (X, Y coordinates) of the center point and the right bank point of the dam axis, and the dam top elevation parameter (Z coordinate). With the center point of the dam axis as a reference point, creating a normal plane of the curve as a supporting plane of the dam axis center plane and the dam contour. Creating a draft of the dam outline on the surface, and constraining parameters of dam crest width, dam crest elevation, upstream-downstream slope ratio and corresponding dimensions in the draft to complete a parameter-driven draft model of the dam outline. The actual height of the dam is related to the terrain surface, in the creation of the dam profile sketch, the initial height is set to 300m (the face plate dam does not have more than 300m class engineering examples at present), the initial model of the dam can be ensured to extend below the terrain surface, the modeling requirement is met, meanwhile, the input of height setting parameters is reduced, and the efficiency is improved.
In the step 4, the dam body type profile is stretched to be an envelope body by taking the dam axis as two sides in the direction, the initial length is set to be 2000m (no engineering example longer than 2000m exists at present, and parameter input can be simplified by default). And (3) performing segmentation operation on the generated dam enveloping body and the terrain surface, judging a plurality of partitioned enveloping body models through a 3DE rule function programming program, and selecting the enveloping body closest to the center point of the dam to be reserved as the dam to obtain a dam body type design model shown in the figure 2. The dam total filling quantity parameter is established, so that the value of the dam total filling quantity parameter is the total volume of the dam body type design model measured after segmentation, the output of the dam total filling engineering quantity can be realized, and the initial scheme feasibility comparison and selection requirement is met.
And 5, the template manufacture in the step uses the 3DE knowledge engineering template function, and the model created in the step 1-4 is manufactured into a panel dam type design template, and the terrain surface and the corresponding primary parameters are used as input conditions. The user can obtain the dam model and the engineering quantity by clicking the terrain surface and inputting parameters without complex modeling operation. If multiple schemes such as different dam axis positions, different dam top elevations and the like are compared, only corresponding parameters are needed to be changed, the model can be updated in real time, and corresponding engineering quantity is output.
The secondary parameters in step 6 are mainly used for material partition design. On the basis of dam body type design, a more detailed material partition is sometimes required to be created in the pre-workable stage, statistics and comparison of engineering quantities of each material partition are performed, and a material partition model is required to be created. According to the design specification of the material partition of the face plate dam and engineering experience, the face plate dam is divided into structural partitions such as a wave wall, a face plate, a cushion layer area, a transition area, a main rock-fill area, a downstream slope protection, a water interception wall, a downstream rock-fill area, a rock-fill drainage area, a clay covering area, a fly ash covering area and the like. Meanwhile, the mutual constraint relation among typical partitions is summarized, and the structural size parameters are simplified into secondary parameters. For example, the panel is connected with the cushion region, the downstream surface slope ratio of the panel is equal to the upstream surface slope ratio of the cushion region, and the two parameters can be set as one parameter to control the body types of the two partitions. And then automatically calculating the default value of the secondary parameter according to the input value of the primary parameter according to the specification and the design experience. For example, the center point coordinates of the dam axis in the primary parameters are vertically projected to the terrain surface, the corresponding river bed elevation is measured, and then the approximate dam height of the dam is obtained through the dam top elevation parameters. According to the design experience of the face plate dams with different dam heights, initial values of parameters such as the height of the wave wall, the thickness slope ratio of the face plate, the downstream slope protection and the like are given, a user can directly establish a material partition model without inputting secondary parameters one by one, and only part of parameters need to be modified, so that an accurate model can be obtained according to actual design parameters. The parameter assignment operation is set through the knowledge engineering reaction of 3DE, corresponding operation codes are written, primary parameters are set to be modified into triggering conditions, secondary parameters are automatically operated and assigned, and meanwhile the parameters can be modified.
And 7, the material partition sketch supporting surface and the datum point are consistent with the dam contour sketch in the step 3. And (3) constraining the structural size of each partition and the parameters set in the step (6) to finish the parameter-driven draft model of each material partition of the dam. The initial height parameters of the material areas connected with the terrain surface, such as the fly ash covering area, the clay covering area, the main rock-fill area and the like, are set to 300m in the same way as in the step 3.
In the step 8, the contour sketch of each material partition is stretched to be an envelope body by taking the axis of the dam as two sides in the direction, and the initial length is set to be 2000m. And (4) carrying out segmentation operation on the generated enveloping bodies of the material partitions and the terrain surface, judging a plurality of partitioned enveloping body models through a 3DE rule function programming program, and selecting the enveloping body closest to the center point of the dam to be reserved as a final material partition, so as to obtain a dam material partition design model shown in figure 14. And (3) creating engineering quantity parameters of each material partition, so that the engineering quantity parameters are the volume of each material partition design model measured after the engineering quantity parameters are segmented, the output of the engineering quantity of the material partition of the dam can be realized, and the further economic comparison and selection requirements of a scheme are met.
The template fabrication in step 9 uses the knowledge engineering template function of 3DE, taking the terrain surface in step 1 and the face plate dam body design model created in step 5 as input conditions. When the scheme feasibility design is carried out, a dam body type design model can be created only by instantiating a body type design template; and when the economic comparison of the further scheme is carried out, continuously instantiating a material partition design template, automatically calculating corresponding secondary parameters, and creating a dam material partition model after modifying a small amount of parameters according to the design. When multiple schemes such as different dam axis positions, different dam top elevations and the like are compared, only corresponding parameters are required to be changed, the model can be updated in real time, and corresponding engineering quantity is output.
The present invention will be described in further detail with reference to the actual design of an engineered face dam.
(1) The engineering firstly needs to carry out preliminary comparison analysis on dam axes at 5 positions, the dam body sizes of the dam axes are consistent, the dam top height is 575m, the dam top width is 10m, the upstream slope ratio is 1.41, and the downstream slope ratio is 1.692. Scheme one dam axis center point coordinates x=10m, y=60deg.m, right bank point coordinates x= -80m, y= -70m. The terrain model is imported with 3DE software, the face dam body type design template created in the step 5 is firstly instantiated, the parameters are input, the face dam body type design model creation is completed, and the total filling amount of the dam output by the template is 110 square.
(2) And copying and pasting the dam body type design model of the scheme I for 4 times, respectively modifying coordinate parameters of the dam body type design model to finish the models of the scheme II to the scheme five, wherein the total filling quantity of the corresponding dams is 105, 180, 160 and 200 square meters respectively. Through preliminary comparison, the engineering quantity advantages of the scheme I and the scheme II are obvious, and the scheme I and the scheme II are subjected to deepened material partition design in the next step.
(3) And (3) instantiating the panel dam material partition template created in the step (9), and completing automatic setting of the size parameters of each material partition. According to the actual design of the engineering, the thickness of the downstream slope protection is changed from 0.4m to 0.5m, the top elevation of the downstream rock-fill area is changed from 550m to 557m, the top elevation of the fly ash covering area is changed from 517m to 520m, and other parameters meet the design requirements and can not be changed. After the modification of the parameters is completed, the construction of the dam material partition model of the scheme one is completed, and the engineering quantity of each material partition is output.
(4) And copying and pasting the regional model of the dam material of the scheme one, and modifying the input condition of the regional model to be the scheme two-body design model. Because each parameter in the scheme two-body design is consistent with the scheme one, the scheme two-body design parameter is not modified. And (3) creating a secondary dam material partition model of the scheme and outputting the engineering quantity of each material partition.
(5) And multiplying the regional engineering quantity of each material of the first scheme and the second scheme by the corresponding engineering unit price to obtain the preliminary dam investment of the two schemes. Although the total filling amount of the dam of the scheme I is 5 ten thousand square meters more than that of the scheme II, the total investment scheme is about 15% more than that of the scheme II due to the difference of the engineering amount and unit price of each material partition, so the scheme I is taken as a recommended scheme.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (9)
1. The parameterized modeling method of the reinforced concrete face plate dam based on the 3DE platform is characterized by comprising the following steps of:
step 1: importing a terrain surface model into 3DE as a basis for creating a face dam model and calculating engineering quantity;
step 2: creating a primary parameter of the control panel dam body type; the primary parameters comprise plane coordinates of a central point of a dam axis, plane coordinates of any point of a right bank, dam top elevation, dam top width, upstream slope ratio and downstream slope ratio;
step 3: creating a dam axis and a dam profile sketch through input primary parameters;
step 4: stretching a dam outline sketch to create a dam enveloping body, and dividing the dam enveloping body with a terrain surface to obtain a dam body type design model and a corresponding engineering quantity;
step 5: taking the dam body type design model as a panel dam body type design template to realize modeling in a planning stage and engineering calculation requirements;
step 6: setting the structural dimensions of the panel, the cushion layer, the downstream rock-fill area and the rock-fill drainage area as secondary parameters; simultaneously creating linkage of the primary parameter and the secondary parameter, and automatically inputting the secondary parameter according to the primary parameter value;
step 7: creating a material partition sketch through the secondary parameters;
step 8: stretching each material partition sketch to create a material partition enveloping body, and dividing the enveloping body with a terrain surface to obtain a material partition design model and a corresponding engineering quantity;
step 9: and taking the material partition design model as a panel dam material partition design template to realize modeling in a pre-controllable stage and the engineering calculation requirement.
2. The method for parameterized modeling of a reinforced concrete panel dam based on a 3DE platform according to claim 1, wherein in the step 3, the dam axis is created by plane coordinates of a center point of the dam axis and any point on the right bank, and a dam top elevation; taking the center point of the dam axis as a datum point, and creating a normal surface of the dam axis as a supporting surface of the dam axis center surface and a dam contour; and creating a sketch of the dam outline on the supporting surface, and constraining parameters of dam crest width, dam crest elevation, upstream-downstream slope ratio and corresponding dimensions in the sketch to complete a parameter-driven dam outline sketch model.
3. The 3DE platform based reinforced concrete face dam parametric modeling method of claim 2, wherein in dam contour sketch creation, the initial elevation is set to 300m.
4. The method for parameterizing and modeling a reinforced concrete panel dam based on a 3DE platform according to claim 1, wherein in the step 4, a dam body profile is stretched to two sides along the axis of the dam to form an envelope body, and the initial length is set to 2000m; dividing the generated dam enveloping body and the terrain surface, judging a plurality of divided enveloping body models, and selecting the enveloping body closest to the center point of the dam to remain as the dam to obtain a dam body type design model; and creating a dam total filling quantity parameter, wherein the dam total filling quantity parameter is the total volume of the dam body type design model measured after the dam total filling quantity parameter is divided.
5. The method for parameterized modeling of a reinforced concrete face dam based on a 3DE platform according to claim 1, wherein in step 5, the template fabrication uses a knowledge engineering template function of 3DE, the model created by steps 1 to 4 is fabricated as a face dam design template, and the topography surface and the corresponding primary parameters are used as input conditions.
6. The method for parameterized modeling of a reinforced concrete face dam based on a 3DE platform according to claim 1, wherein in step 6, the secondary parameters are used for material partition design; according to the design specification of the panel dam material partition and engineering experience, the panel dam material partition is divided into a wave wall, a panel, a cushion layer area, a transition area, a main rock-fill area, a downstream slope protection area, a water interception wall, a downstream rock-fill area, a rock-fill drainage area, a clay covering area and a fly ash covering area; meanwhile, summarizing the mutual constraint relation among typical partitions, and simplifying the structural size parameters into secondary parameters; then according to the standard and design experience, automatically calculating the default value of the secondary parameter according to the input value of the primary parameter; according to the design experience of the face plate dams with different dam heights, initial values of parameters such as the height of the wave wall, the thickness slope ratio of the face plate, the downstream slope protection and the like are given, and a user can obtain an accurate model according to actual design parameters by only modifying part of parameters; the parameter assignment operation is set through the knowledge engineering reaction of 3DE, the primary parameter is used as a trigger condition, the secondary parameter is automatically operated and assigned, and the parameter can be modified.
7. The 3DE platform based reinforced concrete face plate dam parametric modeling method of claim 1, wherein the material partition sketch supporting surface and the datum point in the step 7 are consistent with the dam outline sketch in the step 3; constraining the structure size of each partition and the parameters set in the step 6 to finish a parameter-driven dam material partition sketch model; the initial elevation parameters of the material areas connected with the terrain surface, such as the fly ash covering area, the clay covering area, the main rock-fill area and the like, are consistent with those in the step 3.
8. The method for parameterizing and modeling a reinforced concrete face plate dam based on a 3DE platform according to claim 1, wherein in the step 8, stretching profile sketches of each material partition along the axis of the dam to two sides to form enveloping bodies, and setting the initial length to 2000m; dividing the generated enveloping body of each material partition with the terrain surface, judging a plurality of divided enveloping body models, selecting the enveloping body nearest to the center point of the dam as a final material partition, and obtaining a dam material partition design model; and creating engineering quantity parameters of each material partition, and enabling the engineering quantity parameters to be the design model volume of each material partition measured after the engineering quantity parameters are segmented.
9. The 3DE platform-based reinforced concrete face dam parametric modeling method according to claim 1, wherein the template fabrication in the step 9 uses the knowledge engineering template function of 3DE, and takes the terrain surface in the step 1 and the face dam body design model created in the step 5 as input conditions; creating a dam body type design model by instantiating a body type design template when the scheme feasibility design is carried out; when the economic comparison of the further scheme is carried out, continuously instantiating a material partition design template, automatically calculating corresponding secondary parameters, and creating a dam material partition model after modifying the corresponding parameters according to the design; when multiple schemes such as different dam axis positions, different dam top elevations and the like are compared, the model can be updated in real time by changing corresponding parameters, and corresponding engineering quantity is output.
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