True triaxial test device and method with CT (Computed Tomography) real-time scanning based on water seepage

An experimental device, CT scanning technology, applied in the field of physical simulation experiment research, to achieve a rich effect of research

Pending Publication Date: 2019-12-06
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of equipment, CT scanning is often carried out after the coal and rock mass are unloaded from the true triaxial gas seepage test bench, and it is impossible to observe

Method used

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  • True triaxial test device and method with CT (Computed Tomography) real-time scanning based on water seepage
  • True triaxial test device and method with CT (Computed Tomography) real-time scanning based on water seepage
  • True triaxial test device and method with CT (Computed Tomography) real-time scanning based on water seepage

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Experimental program
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Embodiment Construction

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation examples.

[0038] like figure 1 , figure 2 Shown is a true triaxial fluid-solid coupling coal-rock mass gas seepage experimental system with CT real-time scanning, including a triaxial pressure chamber 1, a support 2, a loading device 3, a loading device 4, a water supply device 5, a CT scanning system 6 and Control monitoring device 7 . The true triaxial pressure chamber 1 is composed of a cover plate 11 and a barrel body 13. The cover plate is provided with an oil inlet 12 and a center hole. The upper part of the barrel body 13 is open, and a center hole is left at the bottom symmetrical to the cover plate 11. An oil discharge port 14 is preset in the lower part of the barrel body 13 .

[0039]The above-mentioned support is composed of a column 21, a top plate 22, and a bottom plate 23; the column runs through preset through hole...

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PUM

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Abstract

The invention provides a true triaxial test device and method with CT (Computed Tomography) real-time scanning based on water seepage. The device comprises a true triaxial pressure chamber, a bracket,a loading device, a water supply device, a CT scanning system, and a control / monitoring device, wherein the true triaxial pressure chamber comprises a cover plate and a barrel body; the bracket comprises a top plate, a bottom plate and a stand column; the devices located in a CT scanning area are made of carbon fiber materials; the loading device comprises an axial pressure, lateral pressure andconfining pressure loading device, and provides an axial pressure, a lateral pressure and a confining pressure required by an experiment; the water supply device controls water passing through a coalbody and obtains the discharged water flow to study the change in permeability; the CT scanning device comprises a CT radioactive source and a CT detector to observe the internal changes of the specimen in real time. Real-time matching of true triaxial stress-strain-seepage and CT is implemented, the device and the method are of great significance for studying the expansion of pore cracks and permeability evolution laws of coal and rock masses in the true triaxial stress state.

Description

technical field [0001] The invention relates to a physical simulation experiment research, and is especially suitable for a true triaxial experiment device and method based on water seepage with CT real-time scanning. Background technique [0002] The research on the deformation and failure characteristics and permeability of coal and rock mass is of great significance for preventing and controlling various dynamic disasters in underground mining work. Laboratory simulation experiments. [0003] In this aspect of the research, the existing experimental equipment and experimental methods have a common feature, that is, the research carried out is relatively simple, and only the gas seepage or mechanical parameters of the coal sample can be studied. However, for coal and rock mass, the fluid in the well is not only gas, but also the seepage of groundwater plays an extremely important role in well mining and disaster prevention, which cannot be ignored. [0004] The damage of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12G01N3/06G01N15/08
CPCG01N3/06G01N3/12G01N15/08G01N15/0806G01N15/0826G01N15/088G01N2015/0846G01N2203/0019G01N2203/0048G01N2203/0066G01N2203/0075G01N2203/0256G01N2203/0647
Inventor 王凯杜锋郭阳阳董虎子王亮徐超辛程鹏
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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