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Three-dimensional sound wave testing device and testing method for rock sample damage determination

A technology for testing devices and testing methods, which is applied to measuring devices, using sound waves/ultrasonic waves/infrasonic waves to analyze solids, and using sound waves/ultrasonic waves/infrasonic waves for material analysis, etc., which can solve the problems of time-consuming, complicated test processes, and inability to quantitatively analyze rock samples. And other issues

Pending Publication Date: 2021-09-14
ANSTEEL GRP MINING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing testing technology for the internal damage of rock samples is mainly: the acoustic wave test on the rock sample on a single axis, and the one-dimensional damage quantitative analysis can be completed through the propagation characteristics of the sound wave. The defect of this method is: only for the rock sample Quantitative analysis of local damage in the transverse or longitudinal direction, not qualitative analysis of defect characteristics
Or in the acoustic wave testing technology on a single axis, the rock sample is divided into multiple sections, and the acoustic wave test is carried out step by step, and then the damage of the rock sample is quantitatively analyzed. The test process is complicated and time-consuming
Therefore, whether it is a single-axis or section-based acoustic wave test, it is relatively one-sided to measure the damage of the rock sample. Not only cannot the overall quantitative analysis of the rock sample be performed, but also the qualitative analysis of the internal defect characteristics of the rock sample cannot be performed. Present the complete structural characteristics of the internal defects of the rock sample

Method used

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  • Three-dimensional sound wave testing device and testing method for rock sample damage determination

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A three-dimensional acoustic wave testing apparatus for measuring the damage to the rock sample, comprising a test chamber, the test chamber is provided on the acoustic transmitter and the acoustic wave receiver 7 8, the acoustic transmitters transmit via the connection line 9, and the sonic receivers by 10 sonicator receiving cable 12, and a sonicator connected data processing terminal 11 is connected by data transmission lines 12 13;

[0029] The test chamber is a hollow cylinder, is provided between the casing 2 and the cover seal; sealing cover 2 is provided a plurality of acoustic transmitters 7, the sealing plate 3 is provided a plurality of acoustic receivers 8, the test chamber sidewall along the longitudinal axis direction divided into two parts, the sealing insert half several acoustic transmitters 7, the other half of the sealing insert several acoustic receivers 8, the bottom plate and the upper cover acoustic transmitter and acoustic receiver arranged symmetric...

Embodiment 2

[0038] A three-dimensional acoustic wave testing apparatus for measuring the damage to the rock sample, comprising a test chamber, the base, disposed on the test box acoustic transmitter and acoustic receiver and the acoustic wave generator is connected to the acoustic wave receiver sonicator, the acoustic wave and data processing apparatus connected to a terminal;

[0039] The test chamber is a sphere, half sphere of the cover, next to a hemisphere box, the box is located on the base, a seal between the cover and the casing; sonic transmitter provided in the sealing cover, a sealing sonic receivers disposed in the housing, and the acoustic transmitter and acoustic receiver disposed symmetrically and uniformly; the test set top box sealable vent hole, the bottom end of the test the tank is provided a coupling medium input and output aperture;

[0040] The data processing terminal may construct a waveform diagram showing the rock sample and damage the internal structure.

[0041] A...

Embodiment 3

[0043] In Example 1, except that the sample is a preform containing rock cracks and holes like;

[0044] Experimental tests were performed before and after the acoustic impact damage, injury dimensional visual model of the internal structure of the internal crack growth model and analyze a sample.

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Abstract

The invention relates to a three-dimensional sound wave testing device and a testing method for rock sample damage determination. The three-dimensional sound wave testing device for rock sample damage determination comprises a testing box, a sound wave emitter and a sound wave receiver which are arranged on the testing box, a sound wave instrument connected with the sound wave emitter and the sound wave receiver, and a data processing terminal connected with the sound wave instrument. The device is mainly an indoor test device, data can be stored after sound wave testing is carried out on the rock sample outdoors, an internal structure model is built in combination with ANSYS modeling software, and the device is used for scientific research between sound waves and rock sample structure damage.

Description

Technical field [0001] The present invention belongs to the technical field sonic testing, in particular, relates to a three-dimensional acoustic wave testing apparatus and a test method for determination of rock-like lesions. Background technique [0002] Sonic technology has been tested in recent years a large number of applications in the determination of injury, the use of acoustic technology can be a good test of the extent of damage Analysis of rock samples, and then a series of physical and mechanical properties of rock samples for analysis. Ultrasonic waves in a solid medium having a highly directional propagation, attenuation, scattering, and other characteristics of the waveform conversion occurs when the propagation medium in the solid heterogeneous medium, with these characteristics, changes according to the acoustic parameters characteristic velocity, amplitude, wave form, Analyzing the defect can be well characterized in the interior of the solid medium. [0003] Te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04G01N29/22G01N29/28G01N29/44
CPCG01N29/043G01N29/22G01N29/28G01N29/4472G01N2291/0232G01N2291/0289
Inventor 栾辉吴春阳崔志平王海齐张宇翔孙铭辰刘震宇衣瑛
Owner ANSTEEL GRP MINING CO LTD