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A test device and method for quantitatively studying water inrush from coal seam floor

A technology of coal seam floor water inrush and test device, which is applied in the direction of measuring device, using stable tension/pressure test material strength, instrument, etc. problem, to achieve the effect of simple structure

Active Publication Date: 2020-07-28
TAIYUAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to provide a test device and method for quantitatively studying water inrush from the coal seam floor, which solves the problems that the detailed evolution process of cracks cannot be observed visually and the water inrush from the coal seam floor cannot be quantitatively studied

Method used

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  • A test device and method for quantitatively studying water inrush from coal seam floor
  • A test device and method for quantitatively studying water inrush from coal seam floor

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Embodiment

[0028] Such as Figure 1~2 As shown, a test device for quantitatively researching coal seam floor water inrush, including a test box, the inside of the test box is a cylindrical cavity 3, the top of the test box is connected to a press 7, the top plate is provided with a hole 6, and the connecting pipe 10 is set in Above the hole, the other end of the connecting tube 10 is connected with the liquid collection bottle 11; the front end of the test box is provided with a viewing window 1, which can be connected with the cavity 3 by bolts 4; the data acquisition and monitoring system includes a high-speed camera 9 and a strain gauge 8. Rely on the high-speed camera 9 to take pictures of the test process. The pictures are taken for subsequent research and used as the basis of experimental data. The stress strain gauge 8 collects stress change information during the loading process.

[0029] In the above device, the visible window 1 is made of tempered glass, and the scale line 5 is pr...

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Abstract

The invention discloses a test device and method for quantitative research of water inrush from a coal seam floor. The test device comprises a test box and a data acquisition detection system, wherein a cylindrical cavity is formed in the test box, the top of the test box is connected with a pressure machine, a hole is formed in a top plate at the top, a connecting pipe is arranged above the hole, and the other end of the connecting pipe is connected with a liquid collecting bottle; a visual window is arranged at the front end of the test box and connected with the cavity through a bolt; the data acquisition detection system comprises a high-speed camera and a stress-strain gauge, the test process is shot by use of the high-speed camera, a shot picture is used for following research and used as a basis of experimental data, and the stress-strain gauge collects stress change information during loading. The test method is implemented as follows: the visual window is arranged on the test box, scales are marked on the visual window, and the water inrush condition of the coal seam floor is monitored through the high-speed camera. The purpose of quantitative description of an experiment achieved, and the high requirements for research on water inrush from the coal seam floor at the current stage are met.

Description

Technical field [0001] The invention relates to a test device and method for quantitatively studying water inrush from coal seam floor, and belongs to the field of water inrush test from coal seam floor. Background technique [0002] Nowadays, coal mining depth, mining intensity, mining speed and mining scale are increasing and expanding. Most coal mines have already entered deep mining, and the threat of water in the mine is also increasing. The water from the coal seam floor can easily enter the mine, causing serious Casualties and economic losses. [0003] In order to better prevent water inrush accidents, it is necessary to study the damage and evolution process of coal and rock mass structure during floor water inrush. At present, there are many researches on water inrush from coal seam floor at home and abroad, and the experimental devices used in the research also have many excellent technical features and effectively solve many technical problems. However, although these d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/02G01N3/12
CPCG01N3/02G01N3/12
Inventor 姜海纳牛小红张晶徐乐华冯国瑞胡胜勇崔家庆宋诚成雅彤李宣良汤宇郝晓燕黄丕森程佳琪马建
Owner TAIYUAN UNIV OF TECH
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