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A modeling method of large geological building information model

A technology of building information model and modeling method, applied in 3D modeling, image data processing, instruments, etc., to achieve the effect of improving management level, advanced methods, and facilitating decision-making

Active Publication Date: 2019-03-15
SICHUAN INST OF GEOLOGICAL ENG INVESTIGATION
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for constructing a large geological building information model, thereby effectively solving the three-dimensional display and three-dimensional spatial analysis of hydrogeology, engineering geology, environmental geology, ecological geology, and tourism geology in geological survey, survey, design, and construction stages. Analysis and other issues

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  • A modeling method of large geological building information model
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  • A modeling method of large geological building information model

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[0046] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0047] A modeling method of a large geological building information model, comprising the following steps:

[0048] Step 1. Obtain the real scene data of the working area through oblique photography and 3D laser scanning technology, and construct the 3D real scene model and point cloud data set of the working area surface;

[0049] Step 2. Using the virtual grid filter algorithm based on slope correction, the extraction of DEM data is realized through computer programming, which specifically includes the following steps:

[0050] (1) First construct the structure PStrut of the point cloud={x, y, z} (wherein, PStrut: the structure data of the point cloud; x: the x coordinate of the point cloud point; y: the y coordinate of the point cloud point; z : the z coordinate of the point cloud point), standardize all point cloud data within the working ...

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Abstract

The invention discloses a modeling method of a large geological building information model, which comprises the following steps: 1. Acquiring onsite scene data of a work area through tilt photographyand three-dimensional laser scanning technology, and constructing a three-dimensional scene model of the surface of the work area and a data set of point clouds; 2, extract DEM data and obtaining an optimal DEM model by fitting a curved surface; 3, primary drill restrict; 4, secondary terrain constraint; 5, plane geological constraint of the third time; 6, constrain that law of four geological evolution; 7, combine that surface three-dimensional real scene model and the underground three-dimensional geological body model and integrally displaying them to obtain a large geological build information model. The method of the invention is advanced, which combines the underground three-dimensional geological body and the three-dimensional real scene model of the ground surface for display, andhas the advantages of visualization, synergy, operability and the like. The method is Widely used, can effectively improve the management level.

Description

technical field [0001] The invention relates to a modeling method, in particular to a modeling method of a large geological building information model. Background technique [0002] The informatization level of the traditional geological industry is generally low. At present, the informatization of the geological industry is mostly about the database construction of geological data and the informatization display of two-dimensional map data. The 3D information research in geological survey, geological survey, design and construction is still in its infancy. The traditional geological survey, survey and design methods are connected with the 3D visualization, collaborative and intelligent working mode in BIM technology. Research on means to improve efficiency and reduce costs is rarely involved. [0003] The research and application of BIM technology in the geological industry is still in the embryonic stage of exploration, and the GBIM technology (Geology-Building Informatio...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/05
Inventor 唐侨潘国耀安世泽钱江澎吴森薛廉陈渠波邓晶彭朝洪王向东王成锋袁伟谭超王蕾陈超吴瑶张芳
Owner SICHUAN INST OF GEOLOGICAL ENG INVESTIGATION
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