Gas-based heat-fluid-solid coupling coal body true triaxial shear seepage experimental device and its experimental method
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, inaccuracy, and inability to study coal body, and achieves flexible and simple adjustment, The experimental results are real and the device structure is simple.
Active Publication Date: 2018-01-16
SHANDONG UNIV OF SCI & TECH
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[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
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[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 thermal-fluid-solid coupled coal body true triaxial shear seepage experimental device and its experimental method based on gas. The shaft test box and the rubber tray with a special structure adapted to the test box make the authenticity, accuracy and reliability of the simulation greatly improved during the shear deformation operation of the test piece, and are convenient for monitoring; the present invention The experimental device is a real "true triaxial" shear seepage experimental device because the test piece to be tested simultaneously exerts force on the "three axes" of the three-dimensional coordinate system. Compared with the prior art, the experimental method has the characteristics of high degree of simulation, real, accurate and reliable detection results, 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....
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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