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Three-dimensional roughness description method for rock mass structural surface based on borehole camera technology

A structural surface and roughness technology, which is applied in the field of three-dimensional roughness description of rock mass structural surfaces, can solve problems such as inaccuracy and achieve the effect of ensuring authenticity and sampling data is true and reliable

Active Publication Date: 2019-10-22
INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen from this that it is not accurate enough to use core data as the source of rock mass structural plane information. Therefore, it is necessary to propose an in-situ measurement technology to directly measure the structural plane on the borehole wall to obtain the Structural information

Method used

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  • Three-dimensional roughness description method for rock mass structural surface based on borehole camera technology
  • Three-dimensional roughness description method for rock mass structural surface based on borehole camera technology
  • Three-dimensional roughness description method for rock mass structural surface based on borehole camera technology

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Embodiment 1

[0052] A method for describing the three-dimensional roughness of a rock mass discontinuity surface based on borehole imaging technology. The specific steps are as follows on the premise that borehole images have been acquired, and the actual measured borehole image data is taken as an example to illustrate in detail.

[0053] A method for describing the three-dimensional roughness of rock mass structural surfaces based on borehole camera technology, the steps of which are:

[0054] Step 1. Use the digital drilling camera system to obtain a panoramic view of the hole wall;

[0055] The digital drilling camera system is a new set of advanced intelligent exploration equipment. The digital drilling camera system integrates electronic technology, video technology, digital technology and computer technology, and performs undisturbed in-situ camera recording and analysis on the inner wall of the hole from a panoramic perspective. By directly studying the borehole wall, the disturbi...

Embodiment 2

[0118] The present invention will be further described by taking the general application as an example below.

[0119] A method for describing the three-dimensional roughness of a structural surface of a rock mass by drilling camera technology, comprising the following steps:

[0120] Step 1. Use the digital drilling camera system to obtain a panoramic view of the hole wall;

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Abstract

The invention discloses a three-dimensional roughness description method for a rock mass structural surface based on borehole camera technology. The method comprises the steps of obtaining a hole walldeveloped panoramic view; obtaining the contour line of the lower wall surface of the rock mass structural surface; fitting a structural surface fitted line, and obtaining the reference plane of thelower wall surface of the rock mass structural surface, and the inclination orientation and the inclination angle of the rock mass structural surface; acquiring a contour line developed curve; acquiring a spliced contour line; obtaining the reference contour line of the set sampling length and the set sampling precision; according to the fractal dimension of each reference contour line segment, forming a structural surface roughness coefficient rose diagram and describing the three-dimensional roughness of the rock mass structural surface based on the same. The method can well describe the three-dimensional roughness information of the rock mass structural surface, and solves the problem that the three-dimensional roughness information of a deep rock mass structural surface is difficult toobtain.

Description

technical field [0001] The invention belongs to the technical field of rock mass engineering and image recognition, and in particular relates to a method for obtaining a hole wall rock mass structural surface image and describing the three-dimensional roughness of the rock mass structural surface by using a drilling camera technology. This method can well describe the three-dimensional roughness information of rock mass structural planes, and solves the difficult problem of obtaining three-dimensional roughness information of deep rock mass structural planes. Background technique [0002] With the rapid development of economic construction, the living space of the earth in the traditional sense can no longer meet the needs of human activities, and seeking development and living space deep in the earth has become a common trend in geotechnical engineering construction and development worldwide. In recent years, the state has paid more and more attention to the use of three-di...

Claims

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Application Information

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IPC IPC(8): G01B11/30G01B11/24
CPCG01B11/24G01B11/30
Inventor 邹先坚王川婴王益腾
Owner INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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