Optimization method of ground construction based on BIM forward design

Abstract

The invention discloses a ground construction optimization method based on forward design of BIM, which includes the following steps: S1. Formulate a plan: plan each layer of the structure to be constructed according to the final result; S2. Build a model: scan the road section to be constructed through BIM software, build a model, and build a virtual model through the plan in S1; S3. Segment cutting: distinguish different sections of the road section to be constructed according to the flatness; S4. Curve fitting: curve fitting is performed on the corresponding sections, and the curvature fitting is realized in the fitting routes of different sections; S5. Overall fitting; S6. Bottom layer paving; S7. Upper layer paving: according to the curvature obtained in S6, the corresponding thickness of the scheme in S1 is added to the curvature to obtain the final road surface. By generating a model, the construction route is optimized before construction, and then the overall construction is made more convenient and convenient through adjustment during the construction process, the difficulty of construction is reduced, and the efficiency of construction is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ground construction, and in particular to a ground construction optimization method based on BIM forward design. Background Art

[0002] The core of BIM is to establish a virtual three-dimensional model of the construction project and use digital technology to provide the model with a complete and actual construction project information library. The information library not only contains geometric information, professional attributes and status information describing the building components, but also contains status information of non-component objects (such as space and motion behavior). With this three-dimensional model containing construction project information, the degree of information integration of the construction project is greatly improved.

[0003] In current ground construction, the ground is leveled by a forklift, and then gravel layers, cement layers, asphalt layers, etc. are laid on the ground. During the construction process, the road section is long, which leads to unevenness, water accumulation or other problems. Construction cannot be carried out according to the existing road surface conditions, resulting in a long and cumbersome construction project. Summary of the invention

[0004] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art, and to provide a ground construction optimization method based on BIM forward design, which optimizes the construction route before construction by generating a model, and then makes the overall construction more convenient and easy through adjustments during the construction process, thereby reducing the difficulty of construction and improving the efficiency of construction.

[0005] The present invention also provides the above-mentioned ground construction optimization method based on BIM forward design, comprising the following steps:

[0006] S1. Make a plan: plan each layer of the construction structure according to the final result;

[0007] S2. Model building: Scan the construction section through BIM software, build a model, and build a virtual model based on the planning in S1 to obtain a preliminary model;

[0008] S3. Segment cutting: The road sections to be constructed are divided into different sections according to their flatness;

[0009] S4. Curve fitting: by fitting the corresponding road sections with curves, the curvature is fitted in the fitting routes of different road sections;

[0010] S5. Overall fitting: Through the fitting in S4, the path planning of the entire road section is realized and the whole is completed;

[0011] S6. Bottom layer laying: Through the overall curve, the radius is further expanded to reach the laying height of the bottom layer and obtain the final laying curvature;

[0012] S7. Upper layer paving: Based on the curvature obtained in S6, the corresponding thickness of the solution in S1 is added to the curvature to obtain the final road surface.

[0013] According to the BIM-based forward design ground construction optimization method provided by the present invention, the planning in S1 is calculated based on the estimated total thickness, and the planning is to calculate the thickness of each layer of the construction surface.

[0014] According to the BIM-based forward design ground construction optimization method provided by the present invention, the specific steps in S2 are: leveling the scanned road sections, and directly connecting them through arcs when there are slopes or depressions, so as to form an initial route.

[0015] According to the BIM-based forward design ground construction optimization method provided by the present invention, the specific steps of segmentation in S3 are: segmentation is performed according to the flatness, depression, and protrusion in the initial route, and the flatness includes horizontal flatness, descending flatness, and ascending flatness.

[0016] According to the BIM-based forward design ground construction optimization method provided by the present invention, the specific steps of curvilinearization in S4 are: according to the specific vertices in each location in the model, they are connected by curves, and the curves are fitted to form an arc segment of a circle with a radius exceeding half a meter. The fitting of different road sections is performed through multiple convex points at two connections to fit the corresponding arcs, and smoothing is performed at the intersection with the fitted curve.

[0017] According to the BIM-based forward design ground construction optimization method provided by the present invention, the overall curve is obtained in S5, and the arc with a radius of less than three meters is straightened.

[0018] Beneficial Effects

[0019] 1. The present invention can be designed according to the existing road surface conditions through curve fitting, reducing the preliminary leveling work, and the curvature control of the construction will not cause the vehicle to be bumpy, making the walking of people and vehicles more comfortable.

[0020] 2. The present invention optimizes the construction route before construction by generating a model, and then makes the overall construction more convenient and easy through adjustments during the construction process, thereby reducing the difficulty of construction and improving the efficiency of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments;

[0022] Figure 1It is a flow chart of the method for optimizing ground construction based on BIM forward design according to the present invention. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0024] Reference Figure 1 The embodiment of the present invention is based on the BIM forward design ground construction optimization method, which includes the following steps:

[0025] S1. Make a plan: plan each layer of the construction structure according to the final result;

[0026] S2. Model building: Scan the construction section through BIM software, build a model, and build a virtual model based on the planning in S1 to obtain a preliminary model;

[0027] S3. Segment cutting: The road sections to be constructed are divided into different sections according to their flatness;

[0028] S4. Curve fitting: by fitting the corresponding road sections with curves, the curvature is fitted in the fitting routes of different road sections;

[0029] S5. Overall fitting: Through the fitting in S4, the path planning of the entire road section is realized and the whole is completed;

[0030] S6. Bottom layer laying: Through the overall curve, the radius is further expanded to reach the laying height of the bottom layer and obtain the final laying curvature;

[0031] S7. Upper layer paving: Based on the curvature obtained in S6, the corresponding thickness of the solution in S1 is added to the curvature to obtain the final road surface.

[0032] The planning in S1 is calculated based on the estimated total thickness, and the planning is to calculate the thickness of each layer laid on the construction surface.

[0033] The specific steps in S2 are: the scanned road section is leveled, and the slope or depression is directly connected through arcs to form an initial route.

[0034] The specific steps of segmentation in S3 are: segmentation is performed according to the flatness, depression and convexity in the initial route, and the flatness includes horizontal flatness, descending flatness and ascending flatness.

[0035] The specific steps of curve formation in S4 are as follows: connect the specific vertices in the model through curves, and form an arc segment of a circle through curve fitting, with a radius of more than half a meter. The fitting of different road sections is done through multiple convex points at two connections to fit the corresponding arcs, and smooth processing is performed at the intersection with the fitted curve.

[0036] The overall curve is obtained in S5, and the arcs with a radius of less than three meters are straightened.

[0037] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. The ground construction optimization method based on BIM forward design is characterized by: include: S1. Make a plan: plan each layer of the construction structure according to the final result; S2. Model building: Scan the construction section through BIM software, build a model, and build a virtual model based on the planning in S1 to obtain a preliminary model; S3. Segment cutting: The road sections to be constructed are divided into different sections according to their flatness; S4. Curve fitting: by fitting the corresponding road sections with curves, the curvature is fitted in the fitting routes of different road sections; S5. Overall fitting: Through the fitting in S4, the path planning of the entire road section is realized and the whole is completed; S6. Bottom layer laying: Through the overall curve, the radius is further expanded to reach the laying height of the bottom layer and obtain the final laying curvature; S7. Upper layer paving: Based on the curvature obtained in S6, the corresponding thickness of the solution in S1 is added to the curvature to obtain the final road surface.

2. The method for optimizing ground construction based on BIM forward design according to claim 1 is characterized in that: The planning in S1 is calculated based on the estimated total thickness, and the planning is to calculate the thickness of each layer laid on the construction surface.

3. The method for optimizing ground construction based on BIM forward design according to claim 1 is characterized in that: The specific steps in S2 are: leveling the scanned road sections, and directly connecting them with arcs when there are slopes or depressions, so as to form an initial route.

4. The method for optimizing ground construction based on BIM forward design according to claim 1 is characterized in that: The specific steps of segmentation in S3 are: segmenting according to the flatness, depression and protrusion in the initial route, and the flatness includes horizontal flatness, descending flatness and ascending flatness.

5. The method for optimizing ground construction based on BIM forward design according to claim 1 is characterized in that: The specific steps of the curve formation in S4 are as follows: according to the specific vertices in each place in the model, they are connected by curves, and a circular arc segment of a circle is formed by curve fitting, and the radius is greater than half a meter. The fitting of different road sections is performed through multiple convex points at two connecting points, so as to fit the corresponding arc, and smooth processing is performed at the intersection with the fitted curve.

6. The method for optimizing ground construction based on BIM forward design according to claim 1 is characterized in that: In S5, the whole curve is obtained, and the arc with a radius of less than three meters is straightened.

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