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Real-time measuring method for rock sample damage in circulation loading process

A cyclic loading, real-time measurement technology, used in measurement devices, using repetitive force/pulse force to test material strength, suspension and porous material analysis, etc. Real-time testing of rock damage status and other issues to achieve the effect of rapid diffusion radius, intuitive expressiveness, and accurate results

Active Publication Date: 2014-01-15
泰州市海通资产管理有限公司
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Problems solved by technology

Nowadays, more non-destructive testing methods use ultrasonic speed to obtain whether there is damage inside the rock, but it cannot reflect the corresponding location of the damage in the rock sample, and the testing method is relatively cumbersome, and the damage status of the rock cannot be tested in real time.

Method used

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  • Real-time measuring method for rock sample damage in circulation loading process
  • Real-time measuring method for rock sample damage in circulation loading process
  • Real-time measuring method for rock sample damage in circulation loading process

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Embodiment Construction

[0037] A method for real-time measurement of rock sample damage during cyclic loading, the method consists of the following steps:

[0038] 1) After the quantitative solution is titrated on the rock sample, the diffusion radius formed on the surface of the solution is used as an index to evaluate the rock sample penetration process, and the experiment is carried out to draw the relationship between the rock porosity and the titration diffusion radius, and the internal damage of the rock is represented from the figure .

[0039] Step 1) consists of the following steps:

[0040] 1-1) Use a thermometer to measure the indoor temperature and use the air conditioner to adjust the temperature to a suitable temperature (generally, the indoor temperature is 20°C-23°C), and use a hygrometer to measure the indoor humidity, and use an air humidifier and lime to adjust the humidity at a suitable temperature. scope;

[0041] 1-2) Take three rock samples to be tested and screened (such as ...

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Abstract

The invention discloses a real-time measuring method for rock sample damage in a circulation loading process. The real-time measuring method comprises the following steps: 1) drawing a relational graph of rock porosity and titration diffusion radius of rock through experiment, and representing internal damage of the rock from the graph; 2) drawing a relational graph of the titration diffusion radius and an axial pressure value of the rock sample in the loading process; 3) obtaining the change of the porosity of the rock sample in the loading process from the relational graph of the titration diffusion radius and the axial pressure value of the rock sample in the loading process, obtained in the step 2), and the relational graph of the rock porosity and the titration diffusion radius of rock, obtained in the step 1), so as to obtain the damage degree in different positions of the rock sample, and realize real-time measurement on the damage of the rock sample in the circulation loading process. Due to the adoption of the real-time measuring method for rock sample damage in the circulation loading process, the change of the porosity of the rock in the stress process is reflected through the appearance phenomenon of the rock surface through a nondestructive testing technique, so that the damage degree of the rock in the stress process is represented.

Description

technical field [0001] The invention relates to a method for measuring rock sample damage, in particular to a real-time method for measuring rock sample damage during cyclic loading. Background technique [0002] The process of rock failure under stress is a damage accumulation process from micro-damage to rock sample failure, and the damage of rock reflects the damage of rock during the stress process. The damage process has become a difficult problem in engineering. Nowadays, more non-destructive testing methods are used to obtain whether there is damage inside the rock at ultrasonic speed, but it cannot reflect the corresponding location of the damage in the rock sample, and the testing method is relatively cumbersome, and the damage status of the rock cannot be tested in real time. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a real-time measurement method for rock sample damage during cyclic loading, usi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/32G01N15/08
Inventor 刘杰郭金龙李建林唐亮
Owner 泰州市海通资产管理有限公司
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