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Comprehensive test method for rock dry-wet cycle dissolution

A dry-wet cycle, comprehensive test technology, applied in the direction of weather resistance/light resistance/corrosion resistance, instruments, measuring devices, etc.

Active Publication Date: 2021-06-25
中铁十一局集团第五工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the research method of static water dissolution, especially for the mechanical properties of gypsum rocks, has great limitations.

Method used

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  • Comprehensive test method for rock dry-wet cycle dissolution
  • Comprehensive test method for rock dry-wet cycle dissolution
  • Comprehensive test method for rock dry-wet cycle dissolution

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Experimental program
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Embodiment Construction

[0027] Below by embodiment and in conjunction with accompanying drawing, the present invention will be further described:

[0028] to combine figure 2 — Figure 5 As shown, the dynamic water environment simulation test device is mainly composed of a constant pressure water tank 1, a water flow stop valve 2, a sample loading container 3, a float flowmeter 4, a flow rate control valve 5, a sample filter holder 6, a test sample 7, a film Composed of packages and outlet pipes.

[0029] The constant pressure water tank 1 is mainly composed of a water storage tank 1a and a water level control valve 1b, and its main function is to provide a constant water flow velocity for the entire dynamic water flow device.

[0030] The water level control valve 1b is installed at the water inlet on the top of the water storage tank 1a, its purpose is to maintain a stable water level in the water storage tank and provide a stable flow rate for the dynamic water flow device, without artificially...

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Abstract

The invention discloses a comprehensive test method for rock dry-wet cycle dissolution. Step A: use a dynamic water environment simulation test device to conduct a rock dynamic water dissolution simulation test; step B: use a static water environment simulation test device to perform a rock static water dissolution simulation test; Step C: Use the drying simulation test device to dry the rock for dehydration; Step D: Repeat steps A to C for the test sample 7 of the same rock sample, and complete 3 dry-wet cycles, 6 dry-wet cycles, and 10 dry-wet cycles respectively. After the wet cycle test, the deteriorated test sample 7 was sealed with a plastic wrap and stored in a dry box for use in subsequent rock mechanics tests. This method can carry out a comprehensive test of dry-wet cycle dissolution on rocks, combined with the parameters in each specific step, can truly simulate the natural water-rock dissolution process, and accurately reveal the dissolution law between rock and water.

Description

technical field [0001] The invention relates to a rock dissolution test method, in particular to a comprehensive test method for water-rock dry-wet cycle corrosion. Background technique [0002] Dissolution is the reaction between minerals in rock and acid or formation water. Among them, the reaction between the minerals in the rock and the formation water is called "water-rock dissolution". In the prior art, most of the water-to-rock dissolution experiments use static water dissolution as a research method, and the dissolution effects on rocks are different. But in reality, the action of water on rocks includes dynamic water in the form of flow and still water in the form of immersion. In areas where groundwater is mostly recharged by seasonal rainwater, the interaction between water and rock often presents the joint action of flow erosion, static water immersion, and repeated drying and wetting. Therefore, the research method of water-rock dissolution using static water...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N17/00
CPCG01N17/00
Inventor 靳贵晓张开顺刘志国黄明陈泽峰熊晓辉邹福林
Owner 中铁十一局集团第五工程有限公司
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