Road fine design method

Abstract

The invention provides a road fine design method. A plurality of digital cameras are carried on an unmanned aerial vehicle flight platform at high altitude above a road to generate a centimeter-levelthree-dimensional live-action model of the road; then the digital terrain model is extracted and imported into a BIM design platform for terrain visual analysis, horizontal and longitudinal geometricanalysis, road subgrade and pavement design and scheme comparison and selection, the design accuracy is improved, field survey work is reduced, the advantages of intelligence, high flexibility and visualization are achieved, field environment live-action simulation is achieved, and the safety of the design scheme is ensured; the survey efficiency and precision are improved while the labor intensity is reduced; schemes are quantitatively compared and selected, so that the engineering cost is reduced; three-dimensional visual service is provided for shortcut line decision making, accurate simulation is achieved, disordered phenomena such as disordered digging, disordered filling, disordered building and environment damage are avoided, and the method is green, energy-saving and environmentally friendly; the method can be used for road design, and can also be used for construction process monitoring, accurate calculation of engineering quantity change, potential safety hazard investigationand the like.

Description

technical field [0001] The invention relates to the field of civil engineering construction, in particular to a road refinement design method. Background technique [0002] Road engineering projects are different from individual construction projects of the construction site type. They are generally distributed in a belt shape and are closely related to the geology, hydrology, and topography along the line. Measurement data such as terrain and landform features are inherently three-dimensional. In the conventional two-dimensional design process, these three-dimensional images are converted into two-dimensional graphics such as plane points and contour lines for storage and representation, which will lead to inaccurate information expression and communication. Especially at present, the construction of construction access roads at home and abroad is extremely random, and there are no relevant design and construction specifications. Random excavation, random filling, random c...

AI Technical Summary

Problems solved by technology

In the conventional two-dimensional design process, these three-dimensional images are converted into two-dimensional graphics such as plane points and contour lines for storage and representation, which will lead to inaccurate information expression and communication

Especially at present, the construction of construction access roads at home and abroad is extremely random, and there are no relevant design and construction specifications. Random excavation, random filling, random construction, and environmental damage are common, resulting in construction access roads in terms of safety, environmental protection and cost control. Seriously insufficient

At the same time, the traditional road planning adopts the method of on-site line selection and point selection, which consumes a lot of manpower and material resources, and the cost is difficult to control. At the same time, it is relatively passive in terms of overall control of the entire survey area.

In addition, in areas with complex terrain, there is a large difference in elevation within a short distance, steep slopes, rapid currents, and intricate terrain, which cause difficulties such as inconvenient transportation, limited sites, and many sources of danger in the construction environment. However, the design of construction access roads at home and abroad is extensive and random. , did not adopt refined design for complex terrain areas, and there were many problems such as rework, damage to the environment, high safety risks, and inaccurate calculation of engineering quantities

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