CN114372336A - Measurement control network layout method based on GIS and BIM model - Google Patents
Measurement control network layout method based on GIS and BIM model Download PDFInfo
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- CN114372336A CN114372336A CN202111568329.4A CN202111568329A CN114372336A CN 114372336 A CN114372336 A CN 114372336A CN 202111568329 A CN202111568329 A CN 202111568329A CN 114372336 A CN114372336 A CN 114372336A
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Abstract
The invention provides a measurement control network layout method based on a GIS (geographic information system) and a BIM (building information modeling) model, which comprises the steps of firstly utilizing an unmanned aerial vehicle to produce a three-dimensional live-action model, utilizing a BIM (building information modeling) technology to produce a three-dimensional structure model, then fusing the three-dimensional live-action model and the three-dimensional structure model, and finally visually analyzing a control point to select a position so as to solve the problems that the traditional method consumes a large amount of manpower, material resources and financial resources, has extremely low efficiency and cannot meet the construction requirement at the present stage by one-time point selection. Belongs to the field of engineering measurement.
Description
Technical Field
The invention relates to a measurement control network layout method based on a GIS (geographic information System) and a BIM (building information modeling) model, belonging to the field of engineering measurement.
Background
After the control points are crossed, control network encryption point selection needs to be carried out on the peripheries of structures such as bridges, tunnels, roadbeds and stations, a large amount of personnel are required to be invested in the traditional point selection technology to select the periphery of the structures, a large amount of time and energy are consumed, the problem that material mechanical equipment is stacked in the construction of the structures cannot be completely estimated through point selection in the early stage, adjacent control points cannot be seen through, and the situation that the control points need to be rearranged is caused.
Disclosure of Invention
The invention provides a GIS (geographic information system) and BIM (building information modeling) model-based measurement control network layout method, which is used for reducing the situation that a measurement control point is damaged, avoiding the situation that the layout position of the control point cannot meet the requirement of later-stage structure construction, ensuring that the same control point is used for controlling a structure in an engineering construction period, having comparability on the change of the control point in the periodic repeated time, and effectively controlling the precision of an engineering project.
In order to achieve the above purpose, the measurement control network layout method based on the GIS and the BIM model is proposed to be adopted, which specifically comprises the following steps:
1) the unmanned aerial vehicle produces a three-dimensional live-action model;
2) producing a three-dimensional structure model by using a BIM technology;
3) fusing the three-dimensional live-action model and the three-dimensional structure model;
importing the three-dimensional live-action model into an Inventor software as a base map, wherein three-dimensional coordinate information is attached to the base map, importing the three-dimensional structure model into the Inventor software to be fused with the three-dimensional live-action model, and integrating the position relation of the three-dimensional structure according to the coordinate information of the coordinate base map to complete the fusion of the live-action model and the structure;
4) selecting a position by a visual analysis control point;
according to the analysis of the surrounding environment and the view of the structure, the optimal position of the control point is selected, the non-selectable area is excluded according to the GIS model, the GPS control point avoids the position which affects the satellite receiving signal, the adjacent position of the wire control point is viewed through, the distance between the point positions is measured in software, and the layout meeting the standard requirement is realized.
The GPS control point avoids the positions of houses, forests, water areas and high-voltage lines.
Compared with the prior art, the method utilizes the GIS and the BIM model to be fused in the control network layout, the method is designed to generate a three-dimensional live-action model and a BIM three-dimensional modeling technology by relying on the aerial survey technology of the small unmanned aerial vehicle, the three-dimensional model is put into the live-action model to be integrated, the integrated model is utilized to avoid the construction access position, the material stacking position, the temporary structure position and the position of the GPS control point which is shielded or has multi-path signal reflection, and the problem that the control point needs to be subjected to site surveying according to the relative relation is solved; in the fusion diagram, the problems that whether adjacent control points are in full view, whether side length meets construction requirements, whether surrounding environment influences GPS measurement and the like are solved, positions are selected by indoor visual analysis of the control points, then the control points are directly embedded on site, and the embedding work of measuring control point selection points is completed, so that the traditional site survey selection is replaced, the traditional method consumes a large amount of manpower, material resources and financial resources, the efficiency is extremely low, and one-time point selection cannot meet the construction requirements at the current stage; by adopting the method, the cost is saved quite high, and the measurement problems that the control pile is easy to damage, is shielded and the like are solved. The method has the advantages that visual control pile point selection work is achieved, the task can be completed indoors, reliable and accurate reference is provided for structural object lofting, and the like.
Drawings
FIG. 1 is a flow chart of the operation of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.
Examples
Referring to fig. 1, this embodiment provides a measurement control network layout method based on a GIS and a BIM model, which includes the following specific steps:
1) the unmanned aerial vehicle produces a three-dimensional live-action model;
planning a flight range of a measurement area according to the position relation of the line, arranging image control points in the measurement area, and taking photos of original landforms and landforms by the unmanned aerial vehicle according to the planned line to finish field data acquisition; and processing the business data by using three-dimensional model software to complete the modeling work of the three-dimensional live-action model.
2) Producing a three-dimensional structure model by using a BIM technology;
and (3) according to a design drawing of a design institute, checking that the relative relation of each structure of the drawing is correct, modeling the structure by using BIM software, and finishing the establishment of a three-dimensional model, wherein the established model is the same as the actual construction size.
3) Fusing the three-dimensional live-action model and the three-dimensional structure model;
the three-dimensional live-action model can rotate to check any angle of the image, visually analyze the surrounding environment of the line, lead the three-dimensional live-action model into the Inventor software to be used as a base map (at the moment, the base map is attached with three-dimensional coordinate information), lead the three-dimensional structure model into the Inventor software to be fused with the three-dimensional live-action model, integrate the position relation of the three-dimensional structure according to the coordinate information of the coordinate base map and complete the fusion of the live-action model and the structure;
4) selecting a position by a visual analysis control point;
the non-selectable areas are eliminated according to the GIS model, the GPS control points avoid the positions of houses, forests, water areas, high-voltage lines and the like which influence satellite receiving signals, the adjacent positions of the wire control points must be viewed, the distance between the points is measured in software, the layout meeting the standard requirements is realized, the problem of large later pitch angle is also considered in a high pier bridge, the secondary layout condition of control piles is reduced, and certain reference is provided for the displacement of the points in periodic retesting.
The basic principle is as follows: the method comprises the steps of generating a three-dimensional live-action model by using an unmanned aerial vehicle aerial survey technology, drawing a structure model by BIM software, fusing the two models according to corresponding positions to generate a built structure view, and selecting the optimal position of a control point according to the analysis of the surrounding environment and the structure view to ensure the accurate positioning of the structure.
The technical characteristics are as follows:
1. the GIS model and the BIM model are applied to the project at the present stage, and measuring personnel only need to visually analyze and select point positions by means of the models to complete the embedding of the control piles, so that the operation is simple, and the cost is saved;
2. the control point position is quickly selected, the site reconnaissance time is saved, the surrounding environment is visually analyzed, and secondary burying of the control pile caused by poor consideration in the early stage is reduced;
3. according to the GIS + BIM model, a stable and reliable position is selected, the periodic retest is comparable, and the accuracy of the lofting structure in the construction stage is guaranteed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. A measurement control network layout method based on GIS and BIM model is characterized by comprising the following steps:
1) the unmanned aerial vehicle produces a three-dimensional live-action model;
2) producing a three-dimensional structure model by using a BIM technology;
3) fusing the three-dimensional live-action model and the three-dimensional structure model;
importing the three-dimensional live-action model into an Inventor software as a base map, wherein three-dimensional coordinate information is attached to the base map, importing the three-dimensional structure model into the Inventor software to be fused with the three-dimensional live-action model, and integrating the position relation of the three-dimensional structure according to the coordinate information of the coordinate base map to complete the fusion of the live-action model and the structure;
4) selecting a position by a visual analysis control point;
according to the analysis of the surrounding environment and the view of the structure, the optimal position of the control point is selected, the non-selectable area is excluded according to the GIS model, the GPS control point avoids the position which affects the satellite receiving signal, the adjacent position of the wire control point is viewed through, the distance between the point positions is measured in software, and the layout meeting the standard requirement is realized.
2. The method of claim 1, further comprising: the GPS control point avoids the positions of houses, forests, water areas and high-voltage lines.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116465455A (en) * | 2023-04-12 | 2023-07-21 | 山西建筑工程集团有限公司 | Integrated digital monitoring method and system for physical indexes of soil body |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116465455A (en) * | 2023-04-12 | 2023-07-21 | 山西建筑工程集团有限公司 | Integrated digital monitoring method and system for physical indexes of soil body |
| CN116465455B (en) * | 2023-04-12 | 2023-10-20 | 山西建筑工程集团有限公司 | Integrated digital monitoring method and system for physical indexes of soil body |
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