Rapid tunnel modeling method based on bim technology

Abstract

The invention relates to a rapid tunnel modeling method based on BIM technology, which is used for shield construction design. The steps are: 1) Create the tunnel skeleton line, that is, the central design axis of the tunnel; 2) Generate the lining ring UDF and the central axis; 3) )Create a "skeleton-driven parameterization" tunnel model: define a list for recording the center point and center axis that are consistent with the input conditions of the lining ring UDF, and use knowledge engineering sentences, 4) Select the tunnel model features and associated parameters , to generate a super copy of the tunnel, the condition is the centerline of the horizontal and longitudinal sections of the tunnel: just import or draw any centerline of the horizontal and longitudinal sections of the tunnel, and apply the super copy of the tunnel to realize the rapid generation of the tunnel model. In shield tunneling construction, with the progress of progress and the deepening of construction, the working conditions are constantly changing. By modifying the key parameter dimensions, the design results consistent with the actual engineering requirements can be obtained, which can greatly improve the working speed and modeling. quality.

Description

technical field [0001] The invention relates to a tunnel engineering BIM technology, in particular to a method for rapidly establishing a shield tunnel by parameterization of a "skeleton-driven model". Background technique [0002] Municipal engineering has its unique professional fields, including: geographic information, engineering geology, lines, roadbeds, bridges, tunnels, electromechanical and so on. The introduction of BIM technology has been promoted and applied. Among them, CATIA is developed by the French Dassault Company and is the world's leading CAD / CAE / CAM integrated software. It covers the whole process of engineering design, product design, 3D modeling, stress analysis, simulation, engineering drawing generation to blanking and processing, and is widely used in automobile manufacturing, aerospace, shipbuilding, plant design, power and electronics, Consumer goods and general machinery manufacturing industries. The BIM working environment of CATIA concurrent...

AI Technical Summary

Problems solved by technology

In actual engineering applications, engineering information is changing rapidly, and the maintenance and repeated revisions of BIM models are unavoidable

In the past, CAD modeling used fixed values ​​to define geometry. Each geometry has its fixed characteristics. If you want to modify it, you need to find its position and element information in the structure and redraw it. This repetition greatly affects work efficiency.

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