Method for establishing a slope bim model based on a 3dexperieuce platform

Abstract

The application relates to a method for establishing a slope BIM model based on a 3DEXPERIENCE platform, and relates to the technical field of slopes.The method comprises the following steps: importing terrain elevation point data of a hub area in the 3DEXPERIENCE platform, generating a hub area terrain PHM surface or a triangular mesh surface, and creating a geological three-dimensional model; then, a new physical product is created in the 3DEXPERIENCE platform, which is used for establishing a slope starting slope line, and excavation control points are determined; in combination with a road width and a slope ratio, a normal excavation skeleton corresponding to each excavation control point is established; adjacent normal skeletons are combined in a bridging or merging mode; an excavation slope surface is obtained; a Boolean operation is performed on the excavation slope surface and the geological three-dimensional model; a hub area slope excavation model is obtained; and each excavation slope surface is marked with corresponding support on the excavation model to obtain a slope BIM model, so that the problem that the BIM technology is used in the slope model to increase the workload of designers in the prior art is solved, and the application is suitable for establishing a slope BIM model.

Description

Technical Field

[0001] This invention relates to the field of slope technology, and in particular to a method for establishing a slope BIM model based on the 3DEXPERIENCE platform. Background Technology

[0002] In the field of slope protection technology, the current application of BIM technology is mainly reflected in two aspects: First, based on the complete set of two-dimensional design results at different design stages, applications such as model making, display of key effects, and 2D design-aided understanding are carried out. This approach does not reflect the benefits and advantages of BIM technology, but instead increases the workload of designers. Second, as the construction phase progresses, forward excavation modeling is carried out in different parts and with different levels of precision, and finally, the complete set of two-dimensional design results are used to express the results, thereby meeting the needs of each stage. This approach of using two-dimensional design results also increases the design workload. Summary of the Invention

[0003] The technical problem solved by this invention is to provide a method for building a slope BIM model based on the 3DEXPERIENCE platform, which solves the problem that the use of BIM technology in slope models in existing technologies increases the workload of designers.

[0004] The technical solution adopted by this invention to solve the above-mentioned technical problems is a method for establishing a slope BIM model based on the 3DEXPERIENCE platform, comprising the following steps:

[0005] S01. Import the measured topographic elevation data of the hub area into the 3DEXPERIENCE platform in the form of point cloud, generate the topographic PHM surface or triangular mesh surface of the hub area, and create a geological 3D model.

[0006] S02. Create a new physical product in the 3DEXPERIENCE platform, design the slope excavation start line of the slope within the physical product, and determine the excavation control points of the slope excavation start line.

[0007] S03. Select any excavation control point on the slope line as a reference point, determine the normal profile corresponding to the reference point, and establish the normal excavation skeleton of the reference point in combination with the width of the walkway and the slope ratio.

[0008] S04. Repeat S03 to obtain the normal excavation skeleton of all excavation control points;

[0009] S05. Combine adjacent normal skeletons by bridging or merging to obtain the excavation face;

[0010] S06. Perform Boolean operations on the excavation face and the three-dimensional geological model to obtain the slope excavation model of the hub area;

[0011] S07. Establish corresponding support structures based on different geological information and slope ratios;

[0012] S08. In the slope excavation model of the hub area, mark the corresponding support according to the geological information and slope ratio of each excavated slope to obtain the slope BIM model.

[0013] Furthermore, the excavation control points are the starting point, turning point, and ending point of the excavation slope line.

[0014] Furthermore, the normal profile corresponding to the reference point is: a plane containing the reference point and parallel to the plane containing the normal of a certain line segment on the excavation slope line where the reference point is located.

[0015] Furthermore, in S03, a two-dimensional rectangular coordinate system is established in the normal profile, with the reference point as the origin, the horizontal direction of the reference point towards the inside of the mountain as the X-axis, and the vertical direction of the reference point upward as the Y-axis, so that the normal excavation skeleton of the reference point is located in the first quadrant of the two-dimensional rectangular coordinate system. The reference point, the width of the ramp, and the slope ratio are parameterized, and the reference point, the width of the ramp, and the slope ratio parameters are used to represent the various turning points of the normal excavation skeleton.

[0016] Furthermore, the support is established using parameters, including support spacing, dimensions, and arrangement.

[0017] The beneficial effects of this invention are as follows: This invention provides a method for establishing a slope BIM model based on the 3DEXPERIENCE platform. By importing topographic elevation point data of the hub area into the 3DEXPERIENCE platform, a PHM surface or triangular mesh surface of the hub area topography is generated, and a geological 3D model is created. Then, a new physical product is created in the 3DEXPERIENCE platform to establish the slope starting line and determine the excavation control points. A normal excavation skeleton corresponding to each excavation control point is established by combining the width of the access road and the slope ratio. Adjacent normal skeletons are combined by bridging or merging to obtain the excavation slope surface. Boolean operations are performed on the excavation slope surface and the geological 3D model to obtain the excavation model of the hub area slope. The corresponding support for each excavation slope surface is marked on the excavation model, resulting in a slope BIM model. This method enables 3D handover and completes 3D full lifecycle design, solving the problem that using BIM technology in slope models in existing technologies increases the workload for designers. Compared with existing technologies, the display results of this invention are 3D displays, making the results more intuitive. Attached Figure Description

[0018] Appendix Figure 1 This is a schematic diagram of the method for establishing a slope BIM model based on the 3DEXPERIENCE platform according to the present invention. Detailed Implementation

[0019] This invention relates to a method for establishing a slope BIM model based on the 3DEXPERIENCE platform, as shown in the appendix. Figure 1 As shown, it includes the following steps:

[0020] S01. Import the measured topographic elevation data of the hub area into the 3DEXPERIENCE platform in the form of point cloud, generate the topographic PHM surface or triangular mesh surface of the hub area, and create a geological 3D model.

[0021] Specifically, the geological 3D model includes the topography and underground rock strata structure and their elevation.

[0022] S02. Create a new physical product in the 3DEXPERIENCE platform, design the slope excavation start line of the slope within the physical product, and determine the excavation control points of the slope excavation start line.

[0023] Specifically, the excavation slope line is composed of multiple line segments. The excavation control points are the starting point, turning point, and ending point of the excavation slope line. For example, if the excavation slope line is composed of line segments AB, BC, and CD, then point A is the starting point of the excavation slope line, point D is the ending point of the excavation slope line, and points B and C are the turning points of the excavation slope line. Points A, B, C, and D are all excavation control points.

[0024] S03. Select any excavation control point on the slope line as a reference point, determine the normal profile corresponding to the reference point, and establish the normal excavation skeleton of the reference point in combination with the width of the walkway and the slope ratio.

[0025] Specifically, the normal profile corresponding to the reference point is: a plane containing the reference point and parallel to the normal plane of a certain line segment on the excavation slope line where the reference point is located. For example, for point A, the only line segment on the slope line where it is located is line segment AB. Therefore, first find the normal plane of line segment AB, and then draw a plane parallel to the normal plane of line segment AB at point A to obtain the normal profile corresponding to point A. For point B, the line segment where it is located can be AB or BC. Therefore, the normal plane of line segment AB or BC can be used to find the normal profile corresponding to point B.

[0026] Specifically, for subsequent model optimization, a two-dimensional rectangular coordinate system can be established in the normal profile, with the reference point as the origin, the horizontal direction from the reference point to the inside of the mountain as the X-axis, and the vertical direction upward as the Y-axis. This ensures that the normal excavation skeleton of the reference point is located in the first quadrant of the two-dimensional rectangular coordinate system. The reference point, the width of the ramp, and the slope ratio are parameterized, and these parameters represent the various turning points of the normal excavation skeleton. There are usually more than one ramp and slope ratio. Thus, the normal excavation skeleton can be adjusted by modifying any one of the reference point, the width of the ramp, and the slope ratio, thereby laying the foundation for subsequent model optimization.

[0027] S04. Repeat S03 to obtain the normal excavation skeleton of all excavation control points;

[0028] Specifically, using points A, B, C, and D as reference points in sequence, the normal excavation skeleton of all excavation control points is obtained.

[0029] S05. Combine adjacent normal skeletons by bridging or merging to obtain the excavation face;

[0030] Specifically, corresponding points in adjacent normal skeletons are connected to form an excavation face, which includes the excavation slope and the walkway surface.

[0031] S06. Perform Boolean operations on the excavation face and the three-dimensional geological model to obtain the slope excavation model of the hub area;

[0032] Specifically, this yields a three-dimensional excavation model of the slope.

[0033] S07. Establish corresponding support structures based on different geological information and slope ratios;

[0034] Specifically, different geological information and slope ratios require different support methods, and the support spacing, size and layout are parameterized to facilitate future adjustments to the support spacing, size and layout.

[0035] S08. In the slope excavation model of the hub area, mark the corresponding support according to the geological information and slope ratio of each excavated slope to obtain the slope BIM model.

[0036] Specifically, by adding support to the slope excavation model of the hub area, a BIM model of the slope can be obtained. The BIM model can be optimized by adjusting parameters in the future, and the results are displayed in three dimensions, making the display more intuitive.

[0037] Specifically, parameters such as slope ratio, walkway width, and walkway height can be marked on the BIM model to enrich the content of the slope BIM model.

Claims

1. A method for establishing a slope BIM model based on the 3DEXPERIENCE platform, characterized in that, Includes the following steps: S01. Import the measured topographic elevation data of the hub area into the 3DEXPERIENCE platform in the form of point cloud, generate the topographic PHM surface or triangular mesh surface of the hub area, and create a geological 3D model. S02. Create a new physical product in the 3DEXPERIENCE platform, design the slope excavation start line of the slope within the physical product, and determine the excavation control points of the slope excavation start line. S03. Select any excavation control point on the slope line as a reference point, determine the normal profile corresponding to the reference point, and establish the normal excavation skeleton of the reference point in combination with the width of the ramp and the slope ratio. The normal profile corresponding to the reference point is a plane that includes the reference point and is parallel to the plane where the normal of a certain line segment on the slope line where the reference point is located is located. The normal excavation skeleton of the reference point is an excavation skeleton that includes the reference point in the normal profile. S04. Repeat S03 to obtain the normal excavation skeleton of all excavation control points; S05. Combine adjacent normal skeletons by bridging or merging to obtain the excavation face; S06. Perform Boolean operations on the excavation face and the three-dimensional geological model to obtain the slope excavation model of the hub area; S07. Establish corresponding support structures based on different geological information and slope ratios; S08. In the slope excavation model of the hub area, mark the corresponding support according to the geological information and slope ratio of each excavated slope to obtain the slope BIM model.

2. The method for establishing a slope BIM model based on the 3DEXPERIENCE platform according to claim 1, characterized in that, The excavation control points are the starting point, turning point, and ending point of the excavation slope line.

3. The method for establishing a slope BIM model based on the 3DEXPERIENCE platform according to claim 1, characterized in that, The normal profile corresponding to the reference point is: a plane containing the reference point and parallel to the normal plane of a certain line segment on the excavation slope line where the reference point is located.

4. The method for establishing a slope BIM model based on the 3DEXPERIENCE platform according to any one of claims 1-3, characterized in that, S03 also includes establishing a two-dimensional rectangular coordinate system in the normal profile, with the reference point as the origin, the horizontal direction of the reference point towards the inside of the mountain as the X-axis, and the vertical direction of the reference point upward as the Y-axis, so that the normal excavation skeleton of the reference point is located in the first quadrant of the two-dimensional rectangular coordinate system, and parameterizing the reference point, the width of the ramp, and the slope ratio, using the reference point, the width of the ramp, and the slope ratio parameters to represent each turning point of the normal excavation skeleton.

5. The method for establishing a slope BIM model based on the 3DEXPERIENCE platform according to any one of claims 1-3, characterized in that, The support system is established using parameters, including support spacing, dimensions, and arrangement.

Images