Multifunctional true triaxial flow solid coupling test system

A technology of fluid-solid coupling and test system, which is applied to the test system of seepage mechanics and mine disaster science, to study the field of rock mechanics, and can solve the problems of not considering the stress environment, not forming parameter equations, and failing to meet the test requirements, etc.

Active Publication Date: 2012-10-17
CHONGQING UNIV
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Problems solved by technology

Deep high temperature and a series of problems caused by it have become a difficult problem in deep mining. At present, the research on the influence of temperature in deep mining is still in the initial and qualitative stage. The main problems are as follows: the real stress environment is not considered; In the constitutive equation of the rock rheological model established under the coupling of temperature and pressure, the consideration of temperature as a linear factor needs to be proved and improved when the temperature field distribution and temperature change have not been specifically clarified; The influence of temperature on transformation lacks quantitative analysis, and no specific parameter equation with general significance has been formed. There is...

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  • Multifunctional true triaxial flow solid coupling test system
  • Multifunctional true triaxial flow solid coupling test system
  • Multifunctional true triaxial flow solid coupling test system

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Embodiment Construction

[0100] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0101] Such as Figure 1 to Figure 19 As shown, a multifunctional true triaxial fluid-solid coupling test system includes a frame 100 and a pressure chamber 200 in which coal and rock samples can be placed. The frame 100 includes a support 1 on which a frame 2 is fixedly connected.

[0102] The upper part of the frame 2 is provided with the first bushing 3, the top of the frame 2 is fixedly connected with the first end cover 4, and the outer side of the first end cover 4 is fixed with the first oil cylinder 5, the first oil cylinder 5 and the first servo oil circuit 6 connections. A first oil cylinder piston 7 and a first oil cylinder piston rod 8 are integrally arranged in the first oil cylinder 5 , and a first oil cylinder displacement sensor 10 is arranged in the first oil cylinder piston 7 and the first oil cylinder piston rod 8 .

[0103] The lower par...

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Abstract

The invention discloses a multifunctional true triaxial flow solid coupling test system which comprises a frame (100) and a pressure chamber (200) capable of arranging a coal rock sample, wherein the frame (100) comprises a support (1); the support (1) is fixedly connected with a frame (2), and a pressurizing system and a sensing system which are independent are arranged in each of X, Y and Z directions of the pressure chamber. Therefore, according to the multifunctional true triaxial flow solid coupling test system, a real work condition can be really simulated, and a theoretical basis is provided for solving on-site problems.

Description

technical field [0001] The invention relates to a test system for studying rock mechanics, seepage mechanics and mine disaster science. Background technique [0002] Coal and gas outburst is an extremely complex dynamic phenomenon that occurs underground in coal mines. It can eject a large amount of coal and gas from the coal body to the mining space in a very short period of time, which seriously threatens the safety and security of coal mines in my country. Miners' lives are safe. Therefore, it is very important to strengthen the research on the mechanism of coal and gas outburst. Studies have shown that coal and gas outburst is the process of shear failure of coal body under the cyclical action of internal and external stress, that is, the internal and external stress induced by changes in the ground stress field, coal rock structure, and gas state and flow due to mining activities. Under the action of external forces, when the coal body is partially fractured and damage...

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Application Information

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IPC IPC(8): G01N3/12G01N3/02G01N15/08
Inventor 许江尹光志王倩彭守建张东明蒋长宝程立朝黄滚李波波李文璞刘东王维忠
Owner CHONGQING UNIV
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