Gas-based heat-fluid-solid coupled coal body true-triaxial shearing percolation experimental device and experimental method thereof

An experimental device, the technology of true triaxial, is applied in the field of true triaxial shear seepage experimental device of heat-fluid-solid coupling coal body, which can solve the problems of shearing distortion, misalignment, inability to study coal body, etc. Flexible and easy adjustment, real effect of experimental results

Active Publication Date: 2015-11-04
SHANDONG UNIV OF SCI & TECH
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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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  • Gas-based heat-fluid-solid coupled coal body true-triaxial shearing percolation experimental device and experimental method thereof
  • Gas-based heat-fluid-solid coupled coal body true-triaxial shearing percolation experimental device and experimental method thereof
  • Gas-based heat-fluid-solid coupled coal body true-triaxial shearing percolation experimental device and experimental method thereof

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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 gas-based thermal-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, a second hydraulic Cylinder 3, third hydraulic cylinder 4, true triaxial pressure chamber 1, specimen holding device; where:

[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 the above-me...

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Abstract

The invention discloses a gas-based heat-fluid-solid coupled coal body true-triaxial shearing percolation experimental device and its experimental method. Based on the prior art, the experimental device adopts a separate-structured true-triaxial experimental box and a special-structured rubber tray which matches the experimental box. Thus, during the test-piece shear deformation operation, authenticity, accuracy and reliability of simulation will be greatly raised, and it is convenient to monitor. According to the experimental device, a test-piece to be detected exerts a force simultaneously in triaxial directions of a three-dimensional coordinate system. Therefore, the experimental device is truly a true-triaxial shearing percolation experimental device. In comparison with the prior art, the experimental method has characteristics of high simulation degree, real and accurate detection 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 gas-based heat-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 bodies....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/24G01N3/02G01N15/08
Inventor 王刚程卫民杜文州孙路路张孝强颜国强李文鑫
Owner SHANDONG UNIV OF SCI & TECH
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