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Method and system for evaluating the stability of weak structural planes based on ultrasonic imaging features

A weak structural surface, ultrasonic imaging technology, applied in the analysis of solids using sonic/ultrasonic/infrasonic waves, material analysis using sonic/ultrasonic/infrasonic waves, processing response signals of detection, etc. It can solve imaging detection, visualization and stability assessment. There is no better method, etc.

Inactive Publication Date: 2021-03-23
INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In recent years, with the vigorous development of advanced technologies such as ultrasonic technology, laser technology, computer technology and image processing technology, various portable detection technologies have achieved rapid development; The earth facilitates the survey and application of engineering geology; in the prior art, there is still no good method for imaging detection, visualization and stability assessment of internal weak structural surfaces of rock and soil

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  • Method and system for evaluating the stability of weak structural planes based on ultrasonic imaging features
  • Method and system for evaluating the stability of weak structural planes based on ultrasonic imaging features
  • Method and system for evaluating the stability of weak structural planes based on ultrasonic imaging features

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Embodiment 1

[0035] An embodiment of the present invention provides a method for evaluating the stability of a weak structural plane based on ultrasonic imaging features, and a schematic diagram of the process, as shown in figure 1 As shown, the method includes the following steps:

[0036] Use ultrasonic waves of different frequencies to obtain ultrasonic scanning images corresponding to weak rock and soil structures at different angles;

[0037] According to the ultrasonic scanning images of the weak rock-soil structures at different angles, the reflection attenuation characteristics corresponding to the ultrasonic scanning images of the weak rock-soil structures at different angles are obtained;

[0038] Obtaining difference images corresponding to the ultrasonic scanning images of weak rock-soil structures at different angles, and obtaining gradient features of the difference images according to the difference images;

[0039] According to the reflection attenuation feature and the gr...

Embodiment 2

[0065]An embodiment of the present invention provides a system for evaluating the stability of a weak structural surface based on ultrasonic imaging features, including an ultrasonic scanning imager, a reflection attenuation feature acquisition module, a gradient feature acquisition module, and a weak structural surface stability assessment module;

[0066] The ultrasonic scanning imager is used to use ultrasonic probes to emit ultrasonic waves of different frequencies to obtain ultrasonic scanning images corresponding to weak rock and soil structures at different angles;

[0067] The reflection attenuation feature acquisition module is used to acquire the reflection attenuation features corresponding to the ultrasonic scan images of rock and soil weak structures at different angles according to the ultrasonic scan images of rock and soil weak structures at different angles;

[0068] The gradient feature acquisition module is used to acquire the difference image corresponding t...

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Abstract

The invention discloses a weak structural plane stability evaluation method and system based on ultrasonic imaging characteristics, belongs to the technical field of geological exploration and measurement, and solves the problem that imaging detection and stability evaluation of a weak structural plane in a rock-soil body cannot be realized in the prior art. The weak structural plane stability evaluation method based on the ultrasonic imaging characteristics comprises the following steps: acquiring ultrasonic scanning images corresponding to a rock-soil weak structure at different angles by using ultrasonic waves with different frequencies; acquiring reflection attenuation characteristics corresponding to the ultrasonic scanning images of the rock-soil weak structure at different angles; obtaining difference images corresponding to the ultrasonic scanning images of the rock-soil weak structure at different angles, and obtaining gradient characteristics of the difference images according to the difference images; and judging the stability of the rock-soil weak structural plane according to the reflection attenuation characteristics and the gradient characteristics of the differenceimages. Imaging detection and stability evaluation of the weak structural plane in the rock-soil body are realized.

Description

technical field [0001] The invention relates to the technical field of geological survey and measurement, in particular to a method and system for evaluating the stability of weak structural planes based on ultrasonic imaging features. Background technique [0002] In many aspects such as geotechnical engineering, water conservancy and hydropower engineering, petroleum exploration engineering, and geological disaster prevention and control, it is often necessary to understand the morphological and structural characteristics of underground rock mass. Since the structural characteristics of the rock mass play an important role in controlling the deformation and failure mode and strength characteristics of the rock mass under certain load conditions, the weak structural plane in the rock mass often becomes the control plane that determines the stability of the rock mass; for example, in large In the analysis of the anti-sliding stability of the dam abutment, the determination o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/06G01N29/11G01N29/24G01N29/44
CPCG01N29/0654G01N29/11G01N29/24G01N29/44G01N2291/015G01N2291/0232
Inventor 邹先坚宋欢
Owner INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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