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A method and device for automatically constructing a three-dimensional model of a geological body

A three-dimensional model and automatic construction technology, applied in the field of automatic construction of three-dimensional models of geological bodies, can solve the problems of low-efficiency automatic modeling, not considering constraints, and expanding the distribution range of strata, so as to improve the efficiency and quality of modeling and reduce construction costs. , Accurate effect of 3D model of geological body

Active Publication Date: 2021-11-26
广东省地震局 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing automatic modeling technology does not accurately consider the impact of the borehole missing a certain formation on the formation shape, but simply regards the thickness of the missing formation as 0, and the modeling results will significantly expand the distribution of the formation; The constraints of the geological map on the stratigraphic form are not considered, resulting in low modeling quality
[0004] 3D geological modeling requires quantitative analysis of stratum morphology based on interpolation algorithms, and the lack of strata is a kind of qualitative information, which cannot directly participate in modeling
Even if the existing human-computer interaction modeling technology considers the impact of missing formation holes and geological maps on the formation shape, it can construct a geological body model with high accuracy, but the modeling relies on manual operation, which is time-consuming and laborious, and the efficiency is far lower than that of automatic modeling

Method used

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  • A method and device for automatically constructing a three-dimensional model of a geological body
  • A method and device for automatically constructing a three-dimensional model of a geological body
  • A method and device for automatically constructing a three-dimensional model of a geological body

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Embodiment 1

[0050] In this embodiment, there are n strata in total from 1 to n according to the new and old order of the strata, wherein stratum No. 1 is the latest and No. n is the oldest, and the target stratum is represented by X, and the target stratum is the current geological body to be constructed in modeling strata in the area. This embodiment provides a method for automatically constructing a three-dimensional model of a geological body based on a formation thickness DEM (target formation X).

[0051] refer to figure 1 As shown, the method for automatically constructing a three-dimensional model of a geological body described in this embodiment includes the following steps:

[0052] S10. Obtain the drilling information of all holes in the mapping area. The drilling information includes point information and layer information, wherein the point information is the spatial coordinate of the drill hole, and the layer information includes stratum age, lithology, and buried depth. Wa...

Embodiment 2

[0087] An embodiment of the present invention provides a device for automatically building a three-dimensional model of a geological body, including:

[0088] The information acquisition module is used to obtain the drilling information of holes in the target layer and holes without the target layer in the mapping area. The drilling information includes point information and layer information; among them, the target layer is the current geological body that needs to be constructed in the modeling process. strata in the area;

[0089] The first calculation module is used to calculate the target layer thickness T 目+ , and calculate the average thickness of the target layer, denoted as "T 1 ";

[0090] The first thickness DEM building block is used to obtain the point information of all target layer holes and their corresponding target layer thickness values ​​T 目+ As point data, use the point data as discrete data, interpolate these discrete data, and construct a thickness DE...

Embodiment 3

[0098] An embodiment of the present invention provides a terminal device, including a processor and a memory, and the memory is used to store a computer program; the processor is used to execute the computer program and realize the automatic 3D model of the geological body provided in Embodiment 1 of the present invention when executing the computer program. build method.

[0099] It should be understood that the processor may be a central processing unit (Central Processing Unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Wherein, the general-purpose processor may be a microprocessor or the processor may be any conventional...

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Abstract

The invention discloses a method and a device for automatically constructing a three-dimensional model of a geological body. Through the method and device, the drilling information of all holes in the mapping area is obtained, the drilling holes are classified according to the drilling point and drilling layer information, and the thickness DEM is constructed by using the interpolation method of the thin plate spline function method, and the stratum Bottom surface DEM, thus obtaining accurate stratigraphic boundaries, and based on the stratum thickness DEM, the top and bottom of the target layer are obtained, and the top and bottom of the target layer and the boundary side of the entire model are automatically constructed to obtain the geological body of the target layer. The geological bodies of other strata are constructed by the above method, so as to complete the construction of the three-dimensional model of the geological body in the whole region.

Description

technical field [0001] The invention belongs to the field of site engineering geological analysis and evaluation, and in particular relates to a method and device for automatically constructing a three-dimensional model of a geological body. Background technique [0002] In recent years, the development form of underground space has gradually developed from single functions such as underground streets, street passages, and underground parking lots in the past to urban underground public spaces that carry comprehensive urban functions and have considerable scale and characteristics. The three-dimensional coordinated development, scale, integration, and depth of the above-ground space. How to use the underground space, it is very important to understand the underground structure. [0003] The construction of 3D model of geological body is an effective method to find out the underground structure. The existing automatic modeling technology does not accurately consider the inf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/05
CPCG06T17/05
Inventor 陈小芳马国玺潘声勇黄飞戚洪飞
Owner 广东省地震局