Borehole-wall image based adjacent drill hole structural surface connectivity analysis method

An analysis method and technology of structural plane, applied in image analysis, image enhancement, image data processing, etc., can solve the problems of unfavorable analysis method programming, lack of derivation process, and complicated steps.

Inactive Publication Date: 2016-07-06
INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

At present, the connectivity analysis of structural planes mainly relies on the correlation comparison of occurrence, position depth, and rock mas

Method used

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  • Borehole-wall image based adjacent drill hole structural surface connectivity analysis method
  • Borehole-wall image based adjacent drill hole structural surface connectivity analysis method
  • Borehole-wall image based adjacent drill hole structural surface connectivity analysis method

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Embodiment Construction

[0061] A method for analyzing the connectivity of adjacent borehole structural planes based on hole wall images. On the premise that the hole wall images have been obtained, the specific steps are as follows: Figure 4 shown, and combined with the measured hole wall images for detailed description.

[0062] A method for analyzing the connectivity of structural surfaces of adjacent boreholes based on hole wall images, the steps of which are:

[0063] (1) Obtain structural surface parameter information

[0064] In the image of the hole wall, the structural surface appears in the form of a standard sinusoid, such as figure 1 shown. The hole wall image is a plane expansion diagram of the drilled hole wall. The original orientation information of the hole wall is described directly above the hole wall image. There is a depth scale on the left side of the hole wall image, which describes the depth information of the hole wall. Therefore, according to the definition of structural ...

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Abstract

The present invention discloses a borehole-wall image based adjacent drill hole structural surface connectivity analysis method. The method comprises the steps of: obtaining structural surface parameter information; calculating coordinates of structural surface feature points in a local coordinate system; carrying out normalization processing on coordinates of structural surface feature points in a global coordinate system; calculating a distance between each two feature points, and carrying out preliminary analysis on structural surface connectivity; and judging connectivity again. The method disclosed by the present invention is simple and easy to implement, stable and reliable, easy to operate, and high in working efficiency, and can carry out connectivity analysis on the structural surface between drill holes rapidly and accurately.

Description

technical field [0001] The invention belongs to the field of geotechnical engineering and spatial analytic geometry, and more specifically relates to a method for analyzing the connectivity of adjacent borehole structural surfaces based on hole wall images. The working efficiency of structural plane connectivity analysis between holes has promoted the development of structural plane analysis technology in hole wall images, and is suitable for digital description and connectivity analysis of structural planes between adjacent boreholes. Background technique [0002] Rock mass is a geological body composed of rock blocks and structural planes (also known as discontinuous planes) that divide rock blocks. The spatial distribution and combination of structural planes constitute the structure of rock mass, which determines the engineering geological characteristics and characteristics of rock mass. key factor in mechanical properties. Only a small part of the structural planes de...

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Application Information

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IPC IPC(8): G06T7/40
CPCG06T7/40G06T2207/30181
Inventor 韩增强王川婴邹先坚
Owner INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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