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Multifunctional visual cylindrical surface crack permeation device and use method thereof

A permeation device and multi-functional technology, which is applied in the field of multi-functional visual cylindrical fissure permeation devices, can solve problems such as inability to simulate, and achieve the effects of reducing experimental errors, small gap width increments, and small sealing pressure

Active Publication Date: 2021-09-03
LUDONG UNIVERSITY
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Problems solved by technology

Existing planar single-fracture permeameters cannot simulate such fractures with gradually changing gap widths, so a permeation device with a new structure is needed to solve the above problems

Method used

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  • Multifunctional visual cylindrical surface crack permeation device and use method thereof
  • Multifunctional visual cylindrical surface crack permeation device and use method thereof
  • Multifunctional visual cylindrical surface crack permeation device and use method thereof

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Embodiment

[0043] see Figure 1 to Figure 6, the present invention provides a multi-functional visual cylindrical fissure infiltration device, comprising: a cylindrical fissure infiltration instrument 100 , a collection and analysis unit 200 and a gas-liquid supply unit 300 . Wherein, the cylindrical fissure permeameter 100 includes an inner cylinder 105 and a transparent outer cylinder 104; a continuous cylindrical fissure is formed between the outer cylinder 104 and the inner cylinder 105; the cylindrical fissure permeameter 100 is capable of injecting Fluid is simulated rock mass fissure to carry out seepage experiment through cylindrical fissure; And collection and analysis unit 200 is used for detecting the pressure data of the fluid in the cylindrical fissure and the flow rate of fluid; Provide fluid and regulate the pressure and flow rate of fluid; here fluid is gas or liquid.

[0044] As an embodiment of the present invention, the position of the outer cylinder 104 can be adjust...

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Abstract

The invention relates to the technical field of geotechnical engineering, in particular to a multifunctional visual cylindrical surface crack permeation device which comprises a cylindrical surface crack permeameter, an acquisition and analysis unit and a gas-liquid supply unit, wherein the cylindrical surface crack permeameter comprises an inner cylinder and a transparent outer cylinder, a cylindrical space between the outer cylinder and the inner cylinder is a cylindrical surface crack, and the cylindrical surface crack is used for simulating a rock mass crack; a plurality of pressure sensors are arranged in the inner cylinder in the height direction; the position of the inner cylinder can be adjusted relative to the outer cylinder; when the inner cylinder and the outer cylinder are coaxial, the cylindrical surface cracks are parallel plate cracks; when the inner cylinder and the outer cylinder are not coaxial, the cylindrical surface crack is a crack with gradually changed gap width; the gas-liquid supply unit can inject fluid into the cylindrical surface crack, transmits pressure data in the cylindrical surface crack through the pressure sensor, transmits flow velocity data when the fluid is input through the flow sensor, and performs state adjustment according to data processing. Therefore, seepage conditions under different crack conditions are simulated, the structure is simple, the osmotic pressure difference is high, and the deformation is small.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to a multi-functional visual cylindrical fissure penetration device and an application method thereof. Background technique [0002] Rock is a porous medium with a complex pore-fracture structure, in which the pore structure is the main storage space for fluids, and the fracture structure is the main flow space for fluids, so the fracture structure is the main factor affecting the permeability characteristics of rocks. Single fracture is the basic element of rock fracture network, and the permeability characteristics of rock are closely related to its geometric characteristics, such as opening, roughness and filling. Therefore, to predict the seepage state in complex engineering rock mass, it is necessary to start with the seepage characteristics of a single fracture surface. [0003] The cracks in the rock can be regarded as parallel cracks approximately. The exis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
CPCG01N15/0826G01N15/0806
Inventor 姜广辉刘玥曾万富赵宗强
Owner LUDONG UNIVERSITY
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