Method for converting slope three-dimensional geologic model into two-dimensional calculation slope surface

Abstract

The invention discloses a method for converting a slope three-dimensional geologic model into a two-dimensional calculation slope surface. The method comprises the following steps: acquiring the slopethree-dimensional geologic model; carrying out attribute assignment on the geological surface of the slope three-dimensional geological model; creating a profile line, and obtaining a vertical planeequation where the profile line is located and a maximum elevation value and a minimum elevation value according to the slope line coordinates; constructing a space cube to obtain a new grid surface of the surface object; carrying out intersection calculation on the triangular mesh and the section of the new mesh surface to obtain all intersection point coordinates of the mesh surface and the section; extracting coordinates of all intersection points of the current surface object and coordinates of section line end points, and drawing line segments on a two-dimensional section through the converted coordinates; repeating the above steps on other surface objects of the slope three-dimensional geologic model to generate a slope two-dimensional calculation profile. According to the method, the defect that secondary assignment is carried out on the two-dimensional line segment after the two-dimensional line segment is imported originally is overcome, the efficiency can be improved, repeated operation is avoided, the error probability is avoided, and the accuracy is improved.

Description

technical field [0001] The invention belongs to the field of geotechnical engineering BIM, and in particular relates to a method for converting a three-dimensional geological model of a slope into a two-dimensional calculation section of the slope. Background technique [0002] 3D geoscientific simulation currently has strong 3D geological modeling capabilities, and can realize spatial operations such as sectioning and cutting of models. The three-dimensional geological model of the slope is based on the actual geological data, through the spatial data information management system, using the geological knowledge and experience of the geological modelers to interpret the geological characteristics, and then using the geological modeling technology to establish. The model can truly reflect the actual geological conditions to the greatest extent, especially for complex geological structures. [0003] At present, the means of using 3D geological models are relatively limited, ...

AI Technical Summary

Problems solved by technology

The entire implementation process requires frequent human-computer interaction, the attribute data of the 3D geological model is not well inherited, the workload of data editing is heavy, and the work efficiency cannot be guaranteed

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