CN114021240B - Arch dam foundation surface excavation slope model modeling method based on 3DEXPERIENCE platform - Google Patents
Arch dam foundation surface excavation slope model modeling method based on 3DEXPERIENCE platform Download PDFInfo
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Abstract
The invention discloses an arch dam foundation surface excavation slope model modeling method based on a 3DEXPERIENCE platform, which relates to the technical field of arch dam construction, an engineering geological three-dimensional model of an area where an arch dam to be constructed is generated through the 3DEXPERIENCE, a foundation surface model is built in the three-dimensional model according to foundation surface control points of the arch dam, corresponding radial frameworks are built by utilizing points of the foundation surface model on edges vertical to a river direction, slopes and horse channels are formed between adjacent radial frameworks, an initial slope model is obtained, the initial slope model is adjusted according to design requirements of the slopes and the horse channels, the foundation surface excavation slope model of the arch dam to be constructed is obtained according to geological conditions, all excavation edge slopes of the arch dam to be constructed are obtained according to the excavation slope model, and the problems of large design workload and time waste of the foundation surface slope of the arch dam are solved.
Description
Technical Field
The invention relates to the technical field of arch dam construction, in particular to an arch dam foundation surface excavation slope model modeling method based on a 3DEXPERIENCE platform.
Background
The slope model is generally established by adopting two-dimensional design software such as AutoCAD software, and the Li Yongping profile corresponds to the principle for designing, namely, a typical profile is selected, the body type of each control profile is designed on a building and a slope according to a certain slope ratio, a pavement height difference, a pavement width and the like in the typical profile, and then the corresponding control points of each control profile are lofted on a plane and connected to form an excavated slope surface.
However, for the slope excavated on the foundation surface of the arch dam, because the slope is curved on the plane, more typical sections are required for ensuring the design accuracy when the conventional two-dimensional design software is adopted for design, the increase of the typical sections can cause the increase of the design workload and the time consumption, and the time and the labor are wasted when the control sections of the designed excavated slope are adjusted.
Disclosure of Invention
The technical problems solved by the invention are as follows: the modeling method for the arch dam foundation surface excavation slope model based on the 3DEXPERIENCE platform solves the problems of large workload and time consumption of the arch dam foundation surface excavation slope design.
The invention solves the technical problems by adopting the technical scheme that: an arch dam foundation surface excavation slope model modeling method based on a 3DEXPERIENCE platform comprises the following steps:
s01, importing the data of the terrain elevation points of the area where the arch dam to be built is located into 3DEXPERIENCE, generating a terrain PHM surface or a triangular mesh surface, and creating an engineering geological three-dimensional model;
s02, importing a foundation surface control point of an arch dam to be built into the three-dimensional model to obtain a foundation surface model;
s03, selecting a plurality of points on the edge of the base surface model in the direction vertical to the river, and taking the points as reference points;
s04, establishing corresponding radial frameworks for the datum points, and forming slope surfaces and horse ways between adjacent radial frameworks to obtain an initial slope model;
s05, according to the design requirements of the slope and the catwalk, and combining geological conditions to adjust the initial slope model, so as to obtain the foundation surface excavation slope model of the arch dam to be built.
Further, in step S03, the reference points are divided into a left bank upstream reference point, a left bank downstream reference point, a right bank upstream reference point, and a right bank downstream reference point according to the positional relationship.
Further, in step S04, a corresponding radial skeleton is established for the left bank upstream reference point, so as to obtain a left bank upstream initial slope model, and according to the obtaining process of the left bank upstream initial slope model, a left bank downstream initial slope model, a right bank upstream initial slope model and a right bank downstream initial slope model are respectively obtained.
Further, in step S05, the left bank upstream initial slope model, the left bank downstream initial slope model, the right bank upstream initial slope model, and the right bank downstream initial slope model are adjusted, respectively, to obtain a left bank upstream excavation slope model, a left bank downstream excavation slope model, a right bank upstream excavation slope model, and a right bank downstream excavation slope model.
Further, in step S05, the design requirements of the pavement and the slope surface include pavement width, slope of the slope surface, and vertical height.
The invention has the beneficial effects that: according to the arch dam foundation surface excavation slope model modeling method based on the 3DEXPERIENCE platform, an engineering geological three-dimensional model of an area where an arch dam to be built is located is generated through the 3DEXPERIENCE, a foundation surface model is built in the three-dimensional model according to foundation surface control points of the arch dam, corresponding radial frameworks are built by utilizing points of the foundation surface model on edges perpendicular to a river direction, slopes and horse roads are formed between adjacent radial frameworks, an initial slope model is obtained, the initial slope model is adjusted according to design requirements of the slopes and the horse roads, the initial slope model is adjusted according to geological conditions, an excavation slope model of the foundation surface of the arch dam to be built is obtained, all excavation slope surfaces of the arch dam to be built are obtained according to the excavation slope model, and the problems of large design workload and time consumption of the excavation slope surfaces of the foundation surface of the arch dam are solved.
Drawings
FIG. 1 is a flow diagram of a method for modeling an arch dam foundation surface excavation slope model based on a 3DEXPERIENCE platform.
Fig. 2 is a model diagram of an arch dam foundation surface excavation slope established by the arch dam foundation surface excavation slope model modeling method based on a 3DEXPERIENCE platform, wherein 1 represents a foundation surface, 2 represents a datum point, 3 represents a radial skeleton, 4 represents a horse way, and 5 represents a slope.
Detailed Description
The invention relates to an arch dam foundation surface excavation slope model modeling method based on a 3DEXPERIENCE platform, which is shown in a figure 1 and comprises the following steps:
s01, importing the data of the terrain elevation points of the area where the arch dam to be built is located into 3DEXPERIENCE, generating a terrain PHM surface or a triangular mesh surface, and creating an engineering geological three-dimensional model;
s02, importing a foundation surface control point of an arch dam to be built into the three-dimensional model to obtain a foundation surface model;
s03, selecting a plurality of points on the edge of the base surface model in the direction vertical to the river, and taking the points as reference points;
s04, establishing corresponding radial frameworks for the datum points, and forming slope surfaces and horse ways between adjacent radial frameworks to obtain an initial slope model;
s05, according to the design requirements of the slope and the catwalk, and combining geological conditions to adjust the initial slope model, so as to obtain the foundation surface excavation slope model of the arch dam to be built.
Specifically, in step S03, the reference points are divided into a left bank upstream reference point, a left bank downstream reference point, a right bank upstream reference point and a right bank downstream reference point according to the positional relationship, in step S04, corresponding radial skeletons are established for the left bank upstream reference point to obtain a left bank upstream initial slope model, a left bank downstream initial slope model, a right bank upstream initial slope model and a right bank downstream initial slope model are respectively obtained according to the obtaining process of the left bank upstream initial slope model, and in step S05, the left bank downstream initial slope model, the right bank upstream initial slope model and the right bank downstream initial slope model are respectively adjusted to obtain a left bank upstream excavation slope model, a left bank downstream excavation slope model, a right bank upstream excavation slope model and a right bank downstream excavation slope model.
The invention is further described by combining an arch dam foundation surface excavation slope model, which is shown in a three-dimensional diagram in figure 2, firstly, an engineering geological three-dimensional model of an area where an arch dam is positioned is built in 3 DEXPERIENCE; then leading in a foundation surface control point of an arch dam to be built to obtain a foundation surface model 1; next, selecting a plurality of points on the edge of the foundation surface model 1 in the direction vertical to the river as reference points 2; next, corresponding radial frameworks are established for all the datum points, the obtained radial frameworks are 3 as shown in fig. 2, a slope 5 and a catwalk 4 are formed between the adjacent radial frameworks, an initial slope model is obtained, the initial slope model is adjusted according to the design requirements of the slope and the catwalk, the foundation face excavation slope model of the arch dam to be built is obtained by combining geological conditions, the adjustment of the initial slope model is achieved by adjusting the radial frameworks during adjustment, all the excavation slope faces of the arch dam to be built are obtained according to the foundation face excavation slope model of the arch dam to be built, and a construction team performs construction according to the excavation slope faces.
Claims (5)
1. The arch dam foundation surface excavation slope model modeling method based on the 3DEXPERIENCE platform is characterized by comprising the following steps of:
s01, importing the data of the terrain elevation points of the area where the arch dam to be built is located into 3DEXPERIENCE, generating a terrain PHM surface or a triangular mesh surface, and creating an engineering geological three-dimensional model;
s02, importing a foundation surface control point of an arch dam to be built into the three-dimensional model to obtain a foundation surface model;
s03, selecting a plurality of points on the edge of the base surface model in the direction vertical to the river, and taking the points as reference points;
s04, establishing corresponding radial frameworks for the datum points, and forming slope surfaces and horse ways between adjacent radial frameworks to obtain an initial slope model;
s05, according to the design requirements of the slope and the catwalk, the initial slope model is adjusted by combining with geological conditions, and the initial slope model is adjusted by adjusting the radial skeleton during adjustment, so that the foundation surface excavation slope model of the arch dam to be built is obtained.
2. The method of modeling an excavation slope model of an arch dam foundation surface based on a 3 dexbience platform according to claim 1, wherein in step S03, the reference points are divided into a left bank upstream reference point, a left bank downstream reference point, a right bank upstream reference point, and a right bank downstream reference point according to a positional relationship.
3. The modeling method of an arch dam foundation surface excavation slope model based on a 3 dexbience platform according to claim 2, wherein in step S04, a corresponding radial skeleton is built for a left bank upstream reference point to obtain a left bank upstream initial slope model, and according to the obtaining process of the left bank upstream initial slope model, a left bank downstream initial slope model, a right bank upstream initial slope model and a right bank downstream initial slope model are respectively obtained.
4. A method for modeling an arch dam foundation pit excavation slope model based on a 3 dexbience platform according to claim 3, wherein in step S05, the left bank upstream initial slope model, the left bank downstream initial slope model, the right bank upstream initial slope model, and the right bank downstream initial slope model are respectively adjusted to obtain a left bank upstream excavation slope model, a left bank downstream excavation slope model, a right bank upstream excavation slope model, and a right bank downstream excavation slope model.
5. A method of modeling an arch dam foundation excavation slope model based on a 3 dexbience platform as claimed in any of claims 1 to 4, wherein the design requirements of the catwalk and slope in step S05 include catwalk width, slope of slope and vertical height.
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| CN113051641A (en) * | 2021-03-10 | 2021-06-29 | 长江勘测规划设计研究有限责任公司 | Three-dimensional parametric modeling method applied to arch dam slope excavation |
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