CN109448134B - Real and virtual combined tunnel BIM (building information modeling) model segmentation method - Google Patents
Real and virtual combined tunnel BIM (building information modeling) model segmentation method Download PDFInfo
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- CN109448134B CN109448134B CN201811070243.7A CN201811070243A CN109448134B CN 109448134 B CN109448134 B CN 109448134B CN 201811070243 A CN201811070243 A CN 201811070243A CN 109448134 B CN109448134 B CN 109448134B
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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Abstract
The tunnel BIM model segmentation method combining reality and virtualization greatly reduces the computer resource consumption and meets the requirements of construction management on the premise of meeting the requirements of tunnel design and construction management. The method comprises the following steps: selecting a corresponding lining type to generate a segmental tunnel, and arranging division lines on the tunnel segment model at certain intervals; performing Boolean operation on the intersection position of the main tunnel and the transverse channel, and shearing the main tunnel and the transverse channel; selecting a partition line to partition the tunnel on the main tunnel model and the transverse channel model which are influenced by Boolean operation; setting the divided main tunnel and transverse channel models influenced by Boolean operation as real division; setting the rest tunnel paragraphs as virtual segmentation; for the tunnel of the real segmentation paragraph, when the tunnel is output to the construction management model, the tunnel is actually segmented and output according to the segmentation line in the paragraph; for the tunnel of the virtual segmentation paragraph, firstly, a tunnel with a standard length is established at the origin of coordinates and output, and then the output result is positioned to an actual position in a translation and rotation mode by adopting a reference mode.
Description
Technical Field
The invention relates to a tunnel BIM design technology, in particular to a real and virtual combined tunnel BIM model segmentation method.
Background
The Building Information Modeling technology has obvious advantages and significance for large-scale complex tunnel engineering construction projects, and the collaborative design is realized through Information communication between a model and designers on the basis of a three-dimensional model containing multi-layer Information. By applying the BIM technology, the continuous and real-time application of various information of the project can be supported, the quality and the efficiency of the design and even the whole project construction project are improved, the cost is obviously reduced, the project is faster, more economical and more accurate, and each stage of the project construction life cycle is benefited.
From the design point of view, the tunnel structure usually selects the lining type according to the surrounding rock level, and BIM modeling is carried out according to the interval. The tunnel structure is considered from the perspective of construction management, a BIM model is designed to be divided according to the precision of the construction management, the model is generally divided into 1m or 0.5m sections, and the control of surrounding rock measurement, quality, safety, investment and progress can be performed according to the divided tunnel BIM model, so that tunnel digital assets are formed, data storage is made for various BIM applications in an operation and maintenance stage, and the full life cycle management of the tunnel is further formed.
The existing BIM design process of the tunnel generally passes through the processes of creating an interval tunnel according to the surrounding rock level, dividing the tunnel according to a fixed interval, outputting a sectional model and the like. The existing process has the following problems: (1) The tunnel is designed according to surrounding rock levels in a segmentation mode in the design stage, and the segmented tunnel becomes an isolated object and cannot be integrally modified; (2) The resource consumption of a computer is large in the design stage due to the increase of the model quantity of the divided tunnel; (3) After the tunnel segmented in the design stage is converted into a building management BIM model, the resource consumption of a computer in the building management stage is large. In order to realize the segmentation design of the tunnel and meet the requirement of fine segmentation, the invention and innovation need to be made from a segmentation method of the model.
Disclosure of Invention
The invention aims to solve the technical problem of providing a real and virtual combined tunnel BIM model segmentation method, which greatly reduces the computer resource consumption and meets the requirements of construction management on the premise of meeting the requirements of tunnel design and construction management.
The technical scheme adopted by the invention for solving the technical problem is as follows:
the invention relates to a real and virtual combined tunnel BIM model segmentation method, which comprises the following steps:
1) Selecting a corresponding lining type to generate a segmental tunnel according to the surrounding rock conditions of the geological longitudinal section and the geological cross section of the tunnel, and arranging parting lines on the tunnel segmental model at certain intervals to form a complete tunnel model;
2) Performing Boolean operation on the intersection position of the main tunnel and the transverse channel, and shearing the main tunnel and the transverse channel;
3) Selecting a dividing line to divide the tunnel on the positive hole model and the transverse channel model which are influenced by Boolean operation;
4) Setting the divided main tunnel and transverse channel models influenced by Boolean operation as real division;
5) Setting the rest tunnel paragraphs as virtual segmentation;
6) For the tunnel of the real segmentation paragraph, when the tunnel is output to the construction management model, the tunnel is actually segmented and output according to the segmentation line in the paragraph;
7) For the tunnel of the virtual segmentation paragraph, firstly, a tunnel with a standard length is established at the origin of coordinates and output, and then the output result is positioned to the actual position in a translation and rotation mode by adopting a reference mode.
The beneficial effects of the invention are mainly embodied in the following aspects:
1. when the tunnel sections are generated, the parting lines are preset on the model, and the tunnel in the design stage is managed in a subsection mode to meet the design requirements;
2. dividing the model into a real cutting model and a virtual cutting model according to the actual condition of the model; (
3. As the tunnel is lined in the same section, the standard-length tunnel is assembled by adopting a reference mode for virtually cutting the tunnel so as to form a refined construction management model, and the consumption of computer resources can be greatly reduced. The method can meet the design requirements and the requirements of construction management.
Drawings
The specification includes the following three drawings:
FIG. 1 is a flow chart of a prior art tunnel segmentation to construction management model;
FIG. 2 is a flow chart of the present invention of a combined real and virtual method into a construction management model.
Fig. 3 is a schematic diagram of real and virtual segmentation of a tunnel.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
Referring to fig. 2, the invention relates to a real and virtual combined tunnel BIM model segmentation method.
The tunnel is divided according to a prearranged dividing line and respectively defined as a real output part and a virtual output part, the real dividing part adopts real dividing output, the virtual dividing part adopts standard length model reference output, two output results are assembled to form a construction management model, and the method comprises the following steps:
1) Selecting a corresponding lining type to generate a segmental tunnel according to the surrounding rock conditions of the geological longitudinal section and the geological cross section of the tunnel, and arranging parting lines on the tunnel segmental model at certain intervals to form a complete tunnel model;
2) Performing Boolean operation on the intersection position of the main tunnel and the transverse channel, and shearing the main tunnel and the transverse channel;
3) Selecting a dividing line to divide the tunnel on the positive hole model and the transverse channel model which are influenced by Boolean operation;
4) Setting the divided main tunnel and transverse channel models influenced by Boolean operation as real division;
5) Setting the rest tunnel paragraphs as virtual segmentation;
6) For the tunnel of the real segmentation paragraph, real segmentation is output according to the segmentation line in the paragraph when the tunnel is output to the construction management model;
7) For the tunnel of the virtual segmentation paragraph, firstly, a tunnel with a standard length is established at the origin of coordinates and output, and then the output result is positioned to an actual position in a translation and rotation mode by adopting a reference mode.
In the step 1), the dividing lines are arranged at intervals of 1m or 0.5m.
In the step 7), the standard length is 1m or 0.5m.
Example (b):
taking a certain 2km tunnel of a railway as an example, fdb format files of CityMaker are all output.
The existing tunnel segmentation method comprises the following steps: occupy hard disk space 500M
The method comprises the following steps: occupy hard disk space 10M
Reducing the space proportion of the hard disk: 90 percent
The method of the invention divides the tunnel according to the preset dividing line and respectively defines the tunnel as the parts of real output and virtual output, the real division part adopts real output, the virtual division part adopts the reference output of creating a standard length model, and the models with different outputs are assembled to form a construction management model, thereby saving the space proportion of a hard disk by 90 percent and greatly reducing the computer resources.
Claims (3)
1. The real and virtual combined tunnel BIM model segmentation method comprises the following steps:
1) Selecting a corresponding lining type to generate a segmental tunnel according to the surrounding rock conditions of the geological longitudinal section and the geological cross section of the tunnel, and arranging parting lines on the tunnel segmental model at certain intervals to form a complete tunnel model;
2) Performing Boolean operation on the intersection position of the main tunnel and the transverse channel, and shearing the main tunnel and the transverse channel;
3) Selecting a dividing line to divide the tunnel on the positive hole model and the transverse channel model which are influenced by Boolean operation;
4) Setting the divided main tunnel and transverse channel models influenced by Boolean operation as real division;
5) Setting the rest tunnel paragraphs as virtual segmentation;
6) For the tunnel of the real segmentation paragraph, real segmentation is output according to the segmentation line in the paragraph when the tunnel is output to the construction management model;
7) For the tunnel of the virtual segmentation paragraph, firstly, a tunnel with a standard length (1 m or 0.5 m) is established at the origin of coordinates and output, and then the output result is positioned to an actual position by adopting a reference mode and a translation and rotation mode.
2. The combined real and virtual tunnel BIM model segmentation method as claimed in claim 1, wherein: in the step 1), the dividing lines are arranged at intervals of 1m or 0.5m.
3. The combined real and virtual tunnel BIM model segmentation method as claimed in claim 1, wherein: in the step 7), the standard length is 1m or 0.5m.
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| CN101882171A (en) * | 2010-05-21 | 2010-11-10 | 中交第二公路勘察设计研究院有限公司 | Method for fast establishing interactive tunnel and wall rock body three-dimensional models |
| JP2018084076A (en) * | 2016-11-24 | 2018-05-31 | 株式会社大林組 | Tunnel management system, tunnel management method, and tunnel management program |
| CN108108566A (en) * | 2018-01-02 | 2018-06-01 | 河南省交通规划设计研究院股份有限公司 | Vcehicular tunnel design method based on BIM |
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Patent Citations (4)
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| JP2001043353A (en) * | 1999-07-30 | 2001-02-16 | Central Japan Railway Co | Device for creation of developed image of tunnel wall surface |
| CN101882171A (en) * | 2010-05-21 | 2010-11-10 | 中交第二公路勘察设计研究院有限公司 | Method for fast establishing interactive tunnel and wall rock body three-dimensional models |
| JP2018084076A (en) * | 2016-11-24 | 2018-05-31 | 株式会社大林組 | Tunnel management system, tunnel management method, and tunnel management program |
| CN108108566A (en) * | 2018-01-02 | 2018-06-01 | 河南省交通规划设计研究院股份有限公司 | Vcehicular tunnel design method based on BIM |
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