BIM based sideway construction planning method

Abstract

The invention discloses a BIM based sideway construction planning method. The method is characterized by comprising the following steps that 1) a sidewalk construction area is plotted; 2) a real-scenemodel and a digital elevation model are generated by using plotting data obtained in the step 1); 3) sideway arrangement is carried out in the digital elevation model based on the real-scene model and digital elevation model generated in the step 2); 4) a preferable sidewalk arrangement scheme is screened; and 5) a working drawing is generated from the digital elevation model of the preferable sidewalk arrangement scheme obtained in the step 4) to guide onsite construction. A unmanned aerial vehicle inclined photographing technology is used to analyze and compare performance and economic returns of the sideway in the different sideway arrangement schemes, the preferable sidewalk arrangement scheme can be screened, the construction cost can be reduced, the construction period is shortened,and the problems including that landform is not displayed in a visualized way, the slope ratio is inconvenient to set, and calculation of cubic meter of earth and stone is complex during constructionsideway planning are overcome.

Description

technical field [0001] The invention belongs to the technical field of highway construction, and in particular relates to a BIM-based construction access road planning method. Background technique [0002] At present, in highway construction, most of them are measured by GPS, total station and other equipment to form a contour topographic map, and CAD drawing is used to plan access roads on a plane. However, the temporary construction design of mountain roads is usually complicated in terrain, which makes surveying and mapping work difficult. The actual geographical environment has great restrictions, and the information such as slope rate cannot be directly displayed in the CAD drawing, which makes the construction of the access road unable to achieve the expected effect. However, the BIM visual design can effectively avoid the occupation of farmland, reduce the excavation of the mountain, and make the road less accessible. The road construction is economical and reasonable...

AI Technical Summary

Problems solved by technology

[0003] In view of the above problems, the present invention provides a BIM-based construction access road planning method, which analyzes and compares the access road performance and economic benefits under different access road layout schemes through UAV oblique photography technology, and can screen out better ones. Access road layout plan to save construction costs and shorten construction period, and at the same time solve the problems of unintuitive terrain display, inconvenient slope setting, and complicated earthwork calculation when planning access roads

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