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Specific corrodibility-based karst three-dimensional model optimization method

A technology of 3D model and optimization method, applied in 3D modeling, details involving processing steps, image data processing, etc., can solve problems such as limited measured data, and achieve the effect of correcting errors, improving accuracy and rationality

Active Publication Date: 2017-09-08
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology

Due to the limited available measured data for the spatial distribution of underground karst, the traditional three-dimensional processing method of smooth transition at the lithological interface has large errors

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  • Specific corrodibility-based karst three-dimensional model optimization method
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  • Specific corrodibility-based karst three-dimensional model optimization method

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] A method for optimizing a three-dimensional karst model based on specific solubility, comprising the following steps:

[0025] 1. To collect relevant measured data of A cave, see figure 1 . Among them, sections 1 and 5 are boundary sections of the cave obtained by geophysical prospecting or other means, section 3 is the lithological interface, the left side is fine mesocrystalline dolomite, and the right side is micritic limestone. image 3 is a three-dimensional section based on these data (since there is no other measured data available between sections 1 and 5, there is generally a smooth transition between the ...

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Abstract

The present invention discloses a specific corrodibility-based karst three-dimensional model optimization method. The method comprises the steps of 1) collecting the relevant actual measurement data of a karst system, obtaining a lithology interface and the boundary cross-sections at the two sides of the lithology interface; 2) obtaining the specific corrodibility of the soluble rocks at the two sides of the lithology interface, and obtaining the specific corrodibility ratio of the rocks; 3) translating the first cross-section to the lithology interface coaxially to obtain a coaxial translation cross-section of the first cross-section close to the lithology interface; 4) according to the specific corrodibility ratio, amplifying and correcting the position of the coaxial translation cross-section to obtain a scaling cross-section of the coaxial translation cross-section; 5) translating the scaling cross-section to the other side of the lithology interface coaxially to obtain a coaxial translation cross-section of the scaling cross-section close to the lithology interface; 6) modeling to obtain a karst three-dimensional model. The method of the present invention corrects a smooth transition error by taking the specific corrodibility ratio of the soluble rocks at the two sides of the lithology interface as the basis, and enables the precision and the reasonability of the karst three-dimensional model to be improved.

Description

technical field [0001] The invention relates to three-dimensional geological modeling technology, in particular to a karst three-dimensional model optimization method based on specific dissolution rate. Background technique [0002] Karst and karst collapse: karst, also known as karst, is mainly the chemical dissolution of water on soluble rocks (carbonate rock, gypsum, rock salt, etc.), and the mechanical effects of flowing water erosion, submerged erosion and collapse. A general term for auxiliary geological processes and the phenomena produced by these processes. Karst landforms are distributed in areas of soluble rocks (carbonate rocks, sulfate rocks and halogen salt rocks) all over the world, and karst landforms develop from tropical to cold zones, from continents to islands. Karst collapse refers to the general term for collapse or subsidence of roof instability due to the expansion of the cave itself or the instability of the roof of the karst caves in the lower solu...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/05
CPCG06T17/05G06T2200/08
Inventor 刘军旗林晨唐辉明吴冲龙刘刚胡新丽王亮清翁正平刘清秉欧阳春姚梦辉龚松林张卫曾雯杜鹃张抒封瑞雪
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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