Water-based heat-fluid-solid coupling true triaxial shear seepage test apparatus for coal body and test method using apparatus

An experimental device, true triaxial technology, applied in the field of thermal-fluid-solid coupled coal body true triaxial shear seepage experimental device, can solve problems such as misalignment, shear distortion, and inability to study coal bodies, so as to achieve realistic and accurate experimental results. The effect of flexible and convenient adjustment and simple device structure

Active Publication Date: 2015-11-25
SHANDONG UNIV OF SCI & TECH
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  • Abstract
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Problems solved by technology

[0003] The simulation experiment devices in the prior art have one thing in common, that is, the test boxes used for the test pieces are all integrated structures, and only a single normal stress is considered. There is a large degree of distortion or misalignment in the shearing effect generated; moreover, only the simulation experiment research of liquid seepage can be carried out, but the gas research cannot be carried out, so there are great limitations in use, and it is impossible to study the seepage of coal bodies. A comprehensive and systematic study of the situation

Method used

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  • Water-based heat-fluid-solid coupling true triaxial shear seepage test apparatus for coal body and test method using apparatus
  • Water-based heat-fluid-solid coupling true triaxial shear seepage test apparatus for coal body and test method using apparatus
  • Water-based heat-fluid-solid coupling true triaxial shear seepage test apparatus for coal body and test method using apparatus

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Embodiment Construction

[0091] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0092] Such as figure 1 , figure 2As shown, the water-based heat-fluid-solid coupling coal body true triaxial shear seepage experimental device of the present invention is used with a hydraulic station 6 and a detection system 7, which includes a frame 2, a first hydraulic cylinder 5, and a second hydraulic cylinder 3. The third hydraulic cylinder 4. True triaxial pressure chamber 1. Specimen holding device; among them:

[0093] The above-mentioned frame 2 is a frame structure, including a top plate 21, a bottom plate 22 and a column;

[0094] The above-mentioned top plate and bottom plate are both rectangular steel plates, and the four corners of the above-mentioned rectangular steel plates are respectively provided with through holes;

[0095] There are four above-mentioned columns, and each column respectively passes through the corresponding through holes on ...

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Abstract

The invention discloses a water-based heat-fluid-solid coupling true triaxial shear seepage test apparatus for coal body and a test method using the apparatus. According to the test apparatus, on the basis of the prior art, a true triaxial test box with a separated structure is employed, and two rubber pallets each possessing a special structure matched with the test box are employed, so that the simulation authenticity, accuracy and reliability are substantially improved during shear deformation operation of a test piece, and monitoring is facilitated. According to the test apparatus, because the to-be tested test piece is subjected to the force along the three axial directions of a stereo coordinate system, the test apparatus is a true triaxial shear seepage test apparatus in a real sense. Compared with the prior art, the test method using the test apparatus is high in simulation degree, and possesses the characteristics of true and accurate result, good reliability and the like.

Description

technical field [0001] The invention relates to a shear seepage device and an experimental method thereof, in particular to a water-based thermal-fluid-solid coupled coal body true triaxial shear seepage experimental device and an experimental method thereof. Background technique [0002] Coal permeability is the basic parameter to study the migration of gas or water in coal, and its simulation experiment research is the most common research method at present. [0003] The simulation experiment devices in the prior art have one thing in common, that is, the test boxes used for the test pieces are all integrated structures, and only a single normal stress is considered. There is a large degree of distortion or misalignment in the shearing effect generated; moreover, only the simulation experiment research of liquid seepage can be carried out, but the gas research cannot be carried out, so there are great limitations in use, and it is impossible to study the seepage of coal bo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
Inventor 王刚程卫民杜文州孙路路张孝强黄启铭武猛猛
Owner SHANDONG UNIV OF SCI & TECH
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