Refined three-dimensional geological modeling method based on boundary representation method
A technology for refined 3D and geological modeling, applied in the field of refined 3D geological modeling based on boundary representation, which can solve problems such as poor model graphics, inaccurate representation of geological information, and difficulty in model modification. The effect of improving accuracy and rationality
Pending Publication Date: 2022-04-01
SHANGHAI GEOTECHN INVESTIGATIONS & DESIGN INST
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[0005] Aiming at the deficiencies in the above-mentioned prior art, the present invention provides a refined three-dimensional geological modeling method based on the boundary representation method, which combines data processing, manual intervention, Interpolation calculation, surface algorithm, etc. are integrated into each level to ensure that the model expression of each level is correct, and then enter the creation of the next level, and finally realize the creation of the entire 3D geological information model; solve the geological problems existing in the 3D geological information model Inaccurate information expression, insufficient integration of expert experience, difficulty in model modification, and poor model graphics
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[0038] Below according to the accompanying drawings figure 1 , give a preferred embodiment of the present invention, and give a detailed description, so that the functions and characteristics of the present invention can be better understood.
[0039] see figure 1 , a refined three-dimensional geological modeling method based on boundary representation in an embodiment of the present invention, comprising the steps of:
[0040] S1: Multi-source data generalization and processing, creating a point model of the stratum;
[0041] The data sources of the 3D geological information model are various, including literature data of relevant departments, field survey, field in-situ test, indoor rock and soil test, engineering surveying and mapping, aerial remote sensing and geophysical exploration, etc. There are differences in the focus, form, and accuracy of these data, and it is necessary to eliminate interference and errors and reduce redundant information.
[0042] The S1 step f...
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The invention provides a refined three-dimensional geological modeling method based on a boundary representation method, and the method comprises the steps: S1, carrying out the generalization and processing of multi-source data, and creating a point model of a stratum; s2, creating a line model, and establishing geological modeling constraints; s3, creating a ring model, and obtaining a pinching range of the stratum; s4, fitting and generating a geological interface, and creating a surface model; and S5, surrounding a geological interface into a body and carrying out attribute assignment to complete creation of the three-dimensional geological information model. According to the refined three-dimensional geological modeling method based on the boundary representation method, data processing, manual intervention, interpolation calculation, a curved surface algorithm and the like are integrated into each level, after it is ensured that the model expression of each level is correct, the next level is established, and finally establishment of the whole three-dimensional geological information model is achieved; the problems that in a three-dimensional geological information model, geological information expression is inaccurate, expert experience fusion is insufficient, model modification is difficult, and the model graphic effect is poor are solved.
Description
technical field [0001] The invention relates to the technical field of three-dimensional geological modeling, in particular to a refined three-dimensional geological modeling method based on a boundary representation method. Background technique [0002] With the promotion and application of building information modeling (BIM) technology in the field of civil engineering, its application in the field of engineering geology is gradually deepening, and the concept of 3D geological information model is also proposed. In the recent urban information modeling (CIM) technology, the urban three-dimensional geological model is an important part of the urban information model, and it is an effective means to realize the fusion and visualization of multi-element information in underground space and the rational utilization of urban underground space resources. [0003] The 3D geological information model contains geological geometric information, topological information, and attribute...
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IPC IPC(8): G06T17/05G06T19/00
Inventor 邰俊许杰蔡国栋尚颖霞徐良义彭艾鑫朱文杰刘天伦
Owner SHANGHAI GEOTECHN INVESTIGATIONS & DESIGN INST