Air-sealing fully-transparent test device for mud film formation under effect of high pressure
A technology of test equipment and pressurization equipment, which is applied in the direction of soil material testing, material inspection products, etc., and can solve the problems of observing mud film formation, etc.
Inactive Publication Date: 2019-07-05
SUN YAT SEN UNIV
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Problems solved by technology
At present, self-made full-permeable air-tight test devices are mostly used in indoor tests of mud film formation, but most of the working gas pressures are within 1MPa, and higher requirements are placed on the pressure chamber under the condition of greater than 1MPa. It is difficult for existing devices to operate Real-time observation of the whole process of mud film formation under high pressure (>1MPa) conditions
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[0021] Below in conjunction with accompanying drawing, the operation process of the present invention will be further described:
[0022] 1. Unscrew the four pressure chamber C. screws, and open the A. upper end cover;
[0023] 2. First slowly pour D3. filter layer material into D. transparent cylinder, evenly compact and level it, with a thickness of 5cm, then slowly pour D2. formation material, evenly compact and level it, with a thickness of 5cm;
[0024] 3. Reverse water injection to the B2. outlet, so that the D3. filter layer material and the D2. formation material are saturated, and the surface of the saturated formation material is flush with the liquid level in the measuring cylinder;
[0025] 4. Slowly pour D1. mud material evenly onto D2. formation material, with a thickness of 3cm;
[0026] 5. Align the A4. positioning ring of the A. upper end cover with the D. transparent cylinder, slowly place the A. upper end cover on the D. transparent cylinder, snap into the ...
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Abstract
The invention relates to an air-sealing fully-transparent test device for mud film formation under the effect of high pressure, which belongs to the technical field of rock and soil mechanics test instrument manufacturing. The air-sealing fully-transparent test device is composed of a fully-transparent pressure chamber and a measurement and pressurization device, wherein the fully-transparent pressure chamber is combined by an upper end cover, a lower end cover and a transparent cylinder, and the measurement and pressurization device is combined by a measuring cylinder and an air compressor. The main values of the air-sealing fully-transparent test device are as follows: 1, in order to realize observation of mud film formation under the high pressure conditions (<5 MPa), the fully-transparent pressure chamber can be used for carrying out an air-sealing test; 2, and the dynamic whole process observation of the mud film formation can be realized.
Description
[0001] Technical field: [0002] The invention relates to a full-permeability test device for mud film-forming and gas-holding under high pressure, and belongs to the technical field of rock and soil mechanics test equipment manufacturing. It is suitable for carrying out the test of mud film-forming gas-holding performance under high-pressure conditions (<5MPa). [0003] Background technique: [0004] Mud film-forming support is an important method of excavation support in underground engineering. It is mainly used to maintain the stability of the excavation surface and ensure the smooth progress of construction. At present, self-made full-permeable air-tight test devices are mostly used in indoor tests of mud film formation, but most of the working gas pressures are within 1MPa, and higher requirements are placed on the pressure chamber under the condition of greater than 1MPa, and the existing devices are difficult to operate Real-time observation of the whole process of ...
Claims
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IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 周翠英梁彦豪刘春辉刘镇
Owner SUN YAT SEN UNIV