Curve PC track beam precision three-dimensional detection method based on BIM technology
A three-dimensional detection and rail beam technology, which is applied to measuring devices, instruments, and optical devices, etc., can solve the problems that the real state of the beam body cannot be truly reflected, the measurement points are not representative, and the measurement methods are cumbersome, and the data processing speed can be achieved. The effect of fast, improved manufacturing accuracy, and simple operation
Inactive Publication Date: 2019-04-26
THE SECOND CONSTR OF CTCE GROUP +2
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Problems solved by technology
The existing beam inspection uses manual surveying and mapping inspection, which has the disadvantages of cumbersome measurement methods, long time consumption, and low precision. At the same time, the selected measurement points are not representative and cannot truly reflect the true state of the beam body.
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[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0028] The precise three-dimensional inspection method of curved PC track beams based on BIM technology specifically includes the following steps:
[0029] (1) Firstly, the Leica Nova MS60 total station scanner is used as a measuring tool to collect points with a distance of 1cm×1cm between the surface of the curved PC track beam;
[0030] (2) Establish a local coordinate system in the 3D laser scanner of the whole station, establish the local coordinate syste...
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The invention discloses a curve PC track beam precision three-dimensional detection method based on the BIM technology. The method includes the steps that firstly, a total-station three-dimensional laser scanner is used for collecting precise three-dimensional point cloud data of a curve PC track beam, and according to a construction method guide book, a CATIA three-dimensional model is generatedin the proportion of 1:1; secondly, the precise three-dimensional point cloud data collected through scanning and the CATIA three-dimensional model are subjected to matching and deviation comparison;finally, visual reports are generated, and all the visual reports are filed, stored and uploaded to the cloud. The construction precision condition of the track beam can be clearly understood by all technical personnel while checking is facilitated, and according to report result feedback, beam manufacturing and construction are guided, and a scheme is adjusted in time. Based on the BIM technology, detection is carried out through sorting, collecting, modeling and design model comparison, detection results are precise and visual, detection is quick, and the real state of the space of a beam body can be reflected.
Description
technical field [0001] The invention relates to the construction field of curved PC track beams, in particular to a precise three-dimensional detection method for curved PC track beams based on BIM technology. Background technique [0002] In the straddle rail transit system, the train uses rubber tires filled with inert gas to walk on concrete beams. The beam body is both a load-bearing structure and a vehicle running track. Once prefabricated, it cannot be adjusted. If before the track beam leaves the factory, it is inaccurately detected whether the manufacturing accuracy of the beam body meets the requirements, it will have an impact on the erection of the offline track beam, ranging from affecting the installation efficiency of the track beam to rework, causing huge economic losses . Track girder detection technology is a necessary means to ensure that all track girders that leave the factory meet the manufacturing precision requirements, and it is also an important gua...
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Login to View More IPC IPC(8): G01B11/00
CPCG01B11/002
Inventor郭庄李军民严郑应蔡跃龙何晓东王立鹏李康
OwnerTHE SECOND CONSTR OF CTCE GROUP