Seepage testing apparatus and method for rock with single fracture

A test device and rock technology, applied in the direction of measurement device, permeability/surface area analysis, suspension and porous material analysis, etc., can solve the problem of inability to truly simulate the seepage process of natural fractured rock mass, small pressure adjustment range, and uncontrollable pressure and other problems, to achieve the effect of increasing the range of water pressure that can be applied, ensuring accuracy, and accurate data

Inactive Publication Date: 2016-08-17
LIAONING TECHNICAL UNIVERSITY
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Problems solved by technology

[0003] At present, most studies on the permeability characteristics of single fracture rocks are based on the cubic theorem, and the applicable condition of the cubic theorem is that the upper and lower surfaces of the fracture are basically parallel and the roughness is small; The cracks are studied; and most of the research tests use the fixture to clamp the specimen, a

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  • Seepage testing apparatus and method for rock with single fracture
  • Seepage testing apparatus and method for rock with single fracture
  • Seepage testing apparatus and method for rock with single fracture

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[0035] An embodiment of the present invention will be further described below in conjunction with the accompanying drawings.

[0036] In the embodiment of the present invention, such as figure 1 As shown, the single fracture rock seepage test device includes a water tank 1, a frequency conversion self-priming booster pump 3, a water storage tank 6, a digital display water pressure gauge 7, a detachable test piece loading sealed cavity 11, a water collector 14 and four A tripod 12, wherein the water tank 1 is connected to a variable frequency self-priming booster pump 3 through a conduit 2, and a variable frequency self-priming booster pump 3 is connected to a water storage tank 6 through a conduit 4. The water storage tank 6 is set on the upper end of the quadruped 12 and the water storage tank 6 The lower end is connected to the detachable test piece loading sealed cavity 11 through the conduit 15, the water collector 14 is placed at the lower end of the detachable test piece loa...

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Abstract

The invention provides a seepage testing apparatus and method for rock with a single fracture, belonging to the technical field of laboratory rock seepage measurement equipment. According to the invention, the real three-dimensional morphology of the surface of a rock fracture is obtained through scanning, and authenticity of the single fracture included in a test piece is realized through 3D printing technology, so data obtained through experiments is more accurate, scientific and real; a detachable test piece loading seal chamber is designed in the invention and the contact surfaces of the test piece and the seal chamber are bonded via an epoxy resin adhesive, so sealing surrounding the test piece is guaranteed, water is only allowed to penetrate through the fracture of the test piece, and accuracy and authenticity of fracture seepage testing are guaranteed; adjustability of the fracture of the test piece in testing is realized by dismounting and replacing a sealing device loaded with test pieces with different fracture openness; and since the designed sealing device has the characteristic of compression resistance, the range of applicable hydraulic pressure of the apparatus can be greatly improved, so the change trend of penetration characteristics of fracture seepage under different hydraulic pressures can be accurately obtained.

Description

technical field [0001] The invention belongs to the technical field of measuring equipment for a rock seepage laboratory, and in particular relates to a single crack rock seepage test device and method. Background technique [0002] For rock mass with fractures, when there is water in the cracks, the pressure of the water will lead to the gradual instability and failure of the rock mass; on the macro scale, the existence and change of the seepage field will lead to the instability of the fractured rock mass engineering, and even lead to large One of the important reasons for large-scale geological disasters; therefore, to study the impact of fractures on rock mass engineering requires understanding the permeability characteristics of fractured rocks; [0003] At present, most studies on the permeability characteristics of single fracture rocks are based on the cubic theorem, and the applicable condition of the cubic theorem is that the upper and lower surfaces of the fractur...

Claims

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Application Information

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IPC IPC(8): G01N15/08
CPCG01N15/082
Inventor 王来贵任彦锦李喜林杨建林赵国超
Owner LIAONING TECHNICAL UNIVERSITY
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