CN111579372A - Visual test device and method for shear seepage coupling failure process - Google Patents
Visual test device and method for shear seepage coupling failure process Download PDFInfo
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- CN111579372A CN111579372A CN202010475797.6A CN202010475797A CN111579372A CN 111579372 A CN111579372 A CN 111579372A CN 202010475797 A CN202010475797 A CN 202010475797A CN 111579372 A CN111579372 A CN 111579372A
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 230000008569 process Effects 0.000 title claims abstract description 34
- 230000008878 coupling Effects 0.000 title claims abstract description 32
- 238000010168 coupling process Methods 0.000 title claims abstract description 32
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 32
- 230000000007 visual effect Effects 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000011435 rock Substances 0.000 claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 230000006378 damage Effects 0.000 claims abstract description 14
- 238000010276 construction Methods 0.000 claims abstract 2
- 238000010008 shearing Methods 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 8
- 229920002907 Guar gum Polymers 0.000 claims description 7
- 229960002154 guar gum Drugs 0.000 claims description 7
- 235000010417 guar gum Nutrition 0.000 claims description 7
- 239000000665 guar gum Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000012800 visualization Methods 0.000 claims description 6
- 239000012466 permeate Substances 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000010998 test method Methods 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims 5
- 230000001808 coupling effect Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 description 14
- 239000011521 glass Substances 0.000 description 3
- 239000001023 inorganic pigment Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 229910000831 Steel Inorganic materials 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/068—Special adaptations of indicating or recording means with optical indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0026—Combination of several types of applied forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0236—Other environments
- G01N2203/0242—With circulation of a fluid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
- G01N2203/0652—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors using contrasting ink, painting, staining
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- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a visual test device of shear seepage coupling destruction process and method, belongs to teaching experiment instrument field, can provide experimental basis for the failure mechanism of rock bridge under the shear seepage coupling effect under the condition of studying high seepage force, including last shear box, cushion, lower shear box, goes up shear box and is located lower shear box upper end, is equipped with the cushion between last shear box and the lower shear box, and water inlet and delivery port are seted up to the cushion, and the curb plate of going up shear box and lower shear box has the transparent construction that is used for observing.
Description
Technical Field
The invention belongs to the field of teaching experimental instruments, and particularly relates to a visual test device and method for a shear-seepage coupling failure process.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In the projects such as oil mining, water conservancy and hydropower, coal mine production, traffic side slopes and the like, underground water has important influence on the stability of rock engineering. The failure and instability of a large number of engineered rock masses is usually caused by shear sliding of some structural surfaces in the rock mass under load or under changing conditions to create new shear sliding surfaces, the formation of which is significantly affected by groundwater. For a non-through jointed rock body, stress and damage characteristics of the rock bridge are greatly changed due to the existence of the rock bridge, the stress and deformation of the rock bridge can be changed by water pressure in a rock body joint crack, meanwhile, the structural characteristics of a rock bridge fracture surface can also influence the seepage of underground water, the rock bridge fracture surface and the underground water interact and influence each other, and a shear seepage coupling test is an important method for disclosing the influence relationship.
The inventor finds that, in the current common shear seepage test, the sealing performance of the shear box is poor, the bearable osmotic pressure is low, the shear seepage test can only be realized under the condition of low seepage pressure, the test cannot be carried out under the condition of high seepage pressure, the interior of the current common shear box is invisible, the specific damage process of the rock bridge in the shear seepage coupling test process cannot be observed, only the final damage result can be obtained, and the method is very unfavorable for researching the specific damage process of the rock bridge under the shear seepage coupling effect.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a visual test device and method for the shear-seepage coupling failure process of a non-through jointed rock mass, and provides a test basis for researching the failure mechanism of a rock bridge under the shear-seepage coupling action under the condition of high seepage force.
In order to achieve the purpose, the invention is realized by the following technical scheme:
in a first aspect, the invention provides a visual test device for a shear seepage coupling failure process, which comprises an upper shear box, a cushion block and a lower shear box, wherein the upper shear box is positioned at the upper end of the lower shear box, the cushion block is arranged between the upper shear box and the lower shear box, the cushion block is provided with a water inlet and a water outlet, and side plates of the upper shear box and the lower shear box are provided with transparent structures for observation.
As a further technical scheme, the shearing device further comprises a pressure loading mechanism, a penetrating fluid loading mechanism, a sensor and a controller, wherein the penetrating fluid loading mechanism is communicated with the water inlet and can pressurize the upper shearing box; the sensor is connected with the controller, and the sensor is arranged on the pressure loading mechanism, the penetrating fluid loading mechanism and the lower end of the cushion block.
As a further technical scheme, the upper shearing box and the lower shearing box respectively comprise two side plates capable of moving relatively, a sample is placed between the two side plates, and a transparent structure is arranged in the middle of each side plate; and a polyurethane thin plate is arranged between the side plate and the sample.
As a further technical scheme, the sensors comprise a lateral stress sensor installed on a lateral shearing pressure head, a normal stress sensor installed on a normal pressure head, a hydraulic pressure sensor installed at a water outlet and a hydraulic pressure sensor installed at a seepage pressurization device.
In a second aspect, the present invention further provides a test method for visualization of a shear-seepage coupling failure process, where the test apparatus for visualization of a shear-seepage coupling failure process according to any one of the technical solutions of the first aspect is used, and the test method includes the following steps:
1) building a visual test device of the shear seepage coupling failure process;
2) manufacturing a non-through jointed rock mass by using a rock-like material, and maintaining after the manufacturing is finished;
3) and fixing the shear box on a test platform, putting the non-through jointed rock mass sample into the test platform, and carrying out a shear seepage coupling test.
As a further technical scheme, the penetrating fluid used for carrying out the shear seepage coupling test is guar gum liquid.
The beneficial effects of the above-mentioned embodiment of the present invention are as follows:
1) in the invention, the middle parts of the two side plates of the shearing box are transparent, and the polyurethane thin plate is also transparent, so that the damage process of the sample rock bridge can be clearly observed, the visualization of the damage process of the rock bridge is achieved, and the damage mechanism of the rock bridge under the shearing seepage coupling action under the condition of high seepage force can be further analyzed.
2) According to the invention, the sealing rubber sheet is arranged between the shearing box and the cushion block, and the polyurethane thin plate is arranged between the side plate and the sample, so that the shearing box has good sealing property, and can meet the test requirements of high confining pressure and high seepage pressure.
3) According to the invention, the guar gum liquid has certain viscosity, the guar gum liquid is used as seepage liquid in a test, the mobility of the seepage liquid in the shear box can be reduced, the sealing property of the shear box is further improved, and the internal seepage path of the broken rock bridge can be observed by adding the environment-friendly inorganic pigment, so that the internal damage visualization of the sample rock bridge is achieved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Figure 1 is a schematic diagram of a system according to one or more embodiments of the invention,
figure 2 is a schematic front cross-sectional view of a shear box according to one or more embodiments of the present invention,
figure 3 is a front view of a shear box side plate according to one or more embodiments of the present invention,
FIG. 4 is a side view of a shear box according to one or more embodiments of the present invention.
In the figure: 1. a shear box device, 2, a normal pressure head, 3, a lateral shear pressure head, 4, a lateral stress sensor, 5, a normal stress sensor, 6, a hydraulic sensor at a water outlet, 7, a hydraulic sensor at a seepage pressure device, 8, a seepage pressure device, 9, a control panel, 10, a server, 11, a beaker with scales, 12, an upper shear box, 13a, a sealing rubber sheet at a water inlet side, 13b, a sealing rubber sheet at a water outlet side, 14a, a water inlet, 14b, a water outlet, 15a, a fixing bolt at a right lower position of a side plate, 15b, a fixing bolt at a left lower position of the side plate, 15c, a fixing bolt at a right upper position of the side plate, 15d, a fixing bolt at a left upper position of the side plate, 16a, a first cushion block, 16b, a second cushion block, 17a, a fixing bolt at a lower bottom plate at a water inlet side, 17b, a fixing bolt at a lower bottom, 20. organic glass, 21a, a side plate right lower positioning bolt hole, 21b, a side plate left lower positioning bolt hole, 21c, a side plate right upper positioning bolt hole, 21d, a side plate left upper positioning bolt hole.
The spacing or dimensions between each other are exaggerated to show the location of the various parts, and the illustration is for illustrative purposes only.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Term interpretation section: the terms "mounted," "connected," "fixed," and the like in the present invention are to be understood in a broad sense, and for example, the terms "mounted," "connected," and "fixed" may be fixed, detachable, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and the terms used in the present invention should be understood as having specific meanings to those skilled in the art.
As introduced by the background art, aiming at the defects in the prior art, the invention aims to provide a test device and a method for visualizing the shear-seepage coupling failure process of a non-through jointed rock mass, and provide a test basis for researching the failure mechanism of a rock bridge under the shear-seepage coupling action under the condition of high seepage force.
Example 1
In a typical embodiment of the present invention, as shown in fig. 1, a visual test apparatus for shear-seepage coupling failure process is provided, which includes an upper shear box 12, a pad, a lower shear box, a pressure loading mechanism, a penetrant loading mechanism, a sensor and a controller, wherein the bottom end of the upper shear box 12 is attached to the pad, and the bottom end of the pad is attached to the lower shear box, that is, the upper shear box 12 is located at the upper end of the lower shear box, the pad is arranged between the upper shear box 12 and the lower shear box, a water inlet 14a and a water outlet 14b are arranged on the surface of the pad attached to the upper shear box 12 or the lower shear box, the penetrant loading mechanism is communicated with the water inlet 14a, and the pressure loading mechanism can push the upper shear box 12 to shear practice; the sensor is connected with the controller and is arranged at the lower ends of the pressure loading mechanism, the penetrating fluid loading mechanism and the cushion block.
It will be appreciated that the upper shear box 12 and the lower shear box together form the shear box assembly 1.
The pressure loading mechanism in this embodiment is further connected with a power source, and the power source can be a hydraulic machine.
It will be appreciated that the pressure loading mechanism is capable of urging the upper shear box 12 in a fixed direction for shearing purposes.
The device in this embodiment is designed for loading a sample in a loading box, and after the sample is placed in the loading box, the pressure loading device is used to apply shear pressure to the sample and simultaneously permeate the sample, and the change of the sample is observed through a transparent area on the side plate 19.
Go up and cut box 12 and cut the box whole by steel and make down, go up the middle part of two relative curb plates 19 that set up of cutting box 12 and be transparent organic glass 20, with the transparent adhesive tape at the inboard seamless transparent polyurethane thin slice of laminating of 19 organic glass 20 parts of both sides board, can clearly observe the destruction process of sample rock bridge, reach the visual purpose of rock bridge destruction process.
The upper shear box 12 and the lower shear box are used for placing samples.
In order to adjust the distance between the two side plates 19, in this embodiment, a screw hole is formed in one side plate 19, a through hole corresponding to the screw hole is formed in the other side plate 19, the bolt penetrates through the screw hole through threaded connection, the two side plates 19 can be close to each other by screwing in the bolt, and the two side plates 19 can be far away from each other by screwing out the bolt.
It can be understood that, in the present embodiment, there are 4 bolts, which are respectively the side plate 19 right lower fixing bolt 15a, the side plate 19 left lower fixing bolt 15b, the side plate 19 right upper fixing bolt 15c, and the side plate 19 left upper fixing bolt 15d, there are 4 through holes for passing the bolts, and there are 4 screw holes for passing the connecting bolts; the side plate is provided with a side plate right lower positioning bolt hole 21a, a side plate left lower positioning bolt hole 21b, a side plate right upper positioning bolt hole 21c and a side plate left upper positioning bolt hole 21d for threaded connection bolts.
The pressure loading mechanism comprises a lateral shearing pressure head 3 and a normal pressure head 2, the lateral shearing pressure head 3 can push the right side face of the upper shearing box 12, and the normal pressure head 2 can extrude the upper end face of the upper shearing box 12.
The bottom end of the lower shearing box is installed on the base 18, specifically, the bottom end of the lower shearing box is connected with the base 18 through a bolt, the water inlet 14a side of the lower shearing box is connected with the base 18 through a water inlet side lower plate fixing bolt 17a, and the water outlet side of the lower shearing box is connected with the base 18 through a water outlet side lower plate fixing bolt 17 b.
The water outlet is also connected with a graduated beaker 11 through a pipeline.
In this embodiment, the cushion blocks include a first cushion block 16a and a second cushion block 16b, a first end of the bottom end of the upper shear box 12 is attached to the first cushion block 16a, and a second end of the bottom end of the upper shear box 12 is attached to the second cushion block 16 b; the first cushion block 16a is attached to the end face of the upper shearing box 12 and provided with a water inlet 14a, and the second cushion block 16b is attached to the end face of the upper shearing box 12 and provided with a water outlet 14 b.
The cushion block is attached to the end face of the shearing box, a cavity is formed between the end face of the shearing box and the shearing box, and the cavity is used for storing water. The sealing rubber sheet is located between the upper shearing box 12 and the first cushion block and the second cushion block 16b, in order to enable seepage liquid to enter a sample joint, a gap needs to be reserved between the upper shearing box 12 and the first cushion block and the second cushion block 16b to form a hollow water storage chamber, the sealing rubber sheet is used for plugging the hollow water storage chamber, the periphery of the sealing shearing box is sealed, and the seepage liquid is prevented from flowing out of the gap.
The sensors comprise a lateral stress sensor 4 arranged on a lateral shearing pressure head 3, a normal stress sensor 5 arranged on a normal pressure head 2, a hydraulic sensor 6 arranged at a water outlet 14b, and a hydraulic sensor 76 arranged at a seepage pressurization device 8.
It will be appreciated that the lateral stress sensor 4, the normal stress sensor 5, the hydraulic pressure sensor 6 are all connected to the server 10 to facilitate the collection and analysis of data by the server 10.
The permeate loading mechanism in this embodiment is a water pump that communicates with a container for storing permeate.
In this embodiment, the controller is a control panel, and the control panel includes a PLC and a switch button led out by the PLC.
Example 2
In a typical embodiment of the present invention, a visual test method for a shear-seepage coupling failure process of a non-through jointed rock mass is further provided, where the visual test apparatus for a shear-seepage coupling failure process described in embodiment 1 is used, and the method includes the following steps:
1) building a visual test device for the shear-seepage coupling failure process as described in example 1;
2) manufacturing a non-through jointed rock mass by using a rock-like material, and maintaining after the manufacturing is finished;
3) and fixing the upper shear box 12 and the lower shear box on a test bed, putting the non-through jointed rock mass sample into the test bed, and carrying out a shear seepage coupling test.
The main components of the rock-like material are gypsum and cement, water is added and uniformly mixed according to a certain proportion, the mixture is placed into a corresponding mold to complete sample preparation, and the sample is maintained in a maintenance box to meet the test requirements.
Referring to the attached drawing 1, in the test, the shear box is placed on a test bed to be fixed, after a sample is installed, the shear box can be connected with a multifunctional control panel 9 through a server 10, and meanwhile, a pressure loading mechanism and a seepage pressurizing device 8 are controlled to perform a non-through jointed rock mass shear seepage coupling test.
Referring to the attached drawings 1-2, in the test process, confining pressure and axial pressure are simultaneously applied to a shear box, normal pressure is applied to the upper top surface of an upper shear box 12 by a pressure head 2, lateral pressure is applied to the side of a water inlet 14a of the upper shear box 12 by a lateral shear pressure head 3, seepage liquid is injected into the water inlet 14a by a seepage pressure device 8, and after a sample joint is damaged, the seepage liquid is discharged through a water outlet 14b and flows into a beaker 11 with scales to measure seepage flow.
The seepage liquid of the shear seepage coupling test is guar gum liquid, and the environment-friendly inorganic pigment is added into the guar gum liquid, so that the mobility of the seepage liquid in the shear box can be reduced to a certain extent due to the fact that the guar gum liquid has certain viscosity, the sealing performance of the shear box is further enhanced, the internal seepage path of a sample after being damaged can be observed by adding the environment-friendly inorganic pigment, and the internal damage visualization of the sample rock bridge is achieved.
Referring to fig. 1-2, a hydraulic sensor 6 is arranged at the water outlet 14b of the shear box, and a hydraulic sensor 7 is arranged at the seepage pressurizing device 8, so that the seepage pressure difference between the water inlet 14a and the water outlet 14b can be calculated.
Referring to fig. 1, the seepage pressure device 8 can realize multi-stage controllable constant seepage pressure and seepage flow control, and can reduce errors caused by unstable seepage pressure during testing.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a visual test device of shear seepage coupling destruction process which characterized in that, includes upper shear box, cushion, lower shear box, and upper shear box is located lower shear box upper end, is equipped with the cushion between upper shear box and the lower shear box, and water inlet and delivery port are seted up to the cushion, and the curb plate of upper shear box and lower shear box has the transparent construction that is used for observing.
2. The visual test device of the shear-coupled fluid damage process of claim 1, further comprising a pressure loading mechanism, a permeate loading mechanism, a sensor and a controller, wherein the permeate loading mechanism is connected to the water inlet, and the pressure loading mechanism is capable of pressurizing the upper shear box; the sensor is connected with the controller, and the sensor is arranged on the pressure loading mechanism, the penetrating fluid loading mechanism and the lower end of the cushion block.
3. The visual testing device of the shear-seepage coupling failure process of claim 2, wherein the sensors comprise a lateral stress sensor mounted on the lateral shear ram, a normal stress sensor mounted on the normal ram, a hydraulic sensor mounted at the water outlet, and a hydraulic sensor mounted at the seepage pressurization device.
4. The visual testing device of the shear-seepage coupling failure process of claim 2, wherein the pressure loading mechanism comprises a lateral shear ram and a normal ram, the lateral shear ram is used for pushing the right side face of the upper shear box, and the normal ram is used for pushing the upper end face of the upper shear box.
5. The visual test device for the shear-seepage coupling failure process of claim 1, wherein the upper shear box and the lower shear box each comprise two side plates capable of moving relatively, a sample is placed between the two side plates, and a transparent structure is installed in the middle of the side plates; and a polyurethane thin plate is arranged between the side plate and the sample.
6. The visual testing device of shear-seepage coupling failure process of claim 1, wherein the spacer blocks comprise a first spacer block and a second spacer block, the first end of the bottom end of the upper shear box is attached to the first spacer block, and the second end of the bottom end of the upper shear box is attached to the second spacer block; the first cushion block is attached to the end face of the upper shearing box and provided with a water inlet, and the second cushion block is attached to the end face of the upper shearing box and provided with a water outlet.
7. The visual test device of the shear-seepage coupling failure process of claim 1, wherein a cavity is formed between the end face of the cushion block, which is attached to the upper shear box, and the shear box, and is used for storing water.
8. The visual testing apparatus for the shear-seepage coupling failure process of claim 7, wherein a sealing rubber sheet is disposed around the cavity.
9. A visual test method for a shear-seepage coupling failure process, which uses the visual test device for the shear-seepage coupling failure process according to any one of claims 1 to 8, and is characterized by comprising the following steps:
1) building a visual test device of the shear seepage coupling failure process;
2) manufacturing a non-through jointed rock mass by using a rock-like material, and maintaining after the manufacturing is finished;
3) and fixing the shear box on a test platform, putting the non-through jointed rock mass sample into the test platform, and carrying out a shear seepage coupling test.
10. A method for testing visualization of shear-coupled fracture processes as in claim 9, wherein the shear-coupled fluid is guar gum.
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| CN202010475797.6A CN111579372A (en) | 2020-05-29 | 2020-05-29 | Visual test device and method for shear seepage coupling failure process |
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| CN202010475797.6A CN111579372A (en) | 2020-05-29 | 2020-05-29 | Visual test device and method for shear seepage coupling failure process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112834407A (en) * | 2021-01-09 | 2021-05-25 | 西安石油大学 | Device and method for measuring core seepage force |
| CN112858044A (en) * | 2021-03-15 | 2021-05-28 | 中南大学 | Test device and test method for shear seepage test |
| CN114279940A (en) * | 2022-03-03 | 2022-04-05 | 中国矿业大学(北京) | Visual teaching system for shear seepage characteristics of fractured rock mass |
-
2020
- 2020-05-29 CN CN202010475797.6A patent/CN111579372A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112834407A (en) * | 2021-01-09 | 2021-05-25 | 西安石油大学 | Device and method for measuring core seepage force |
| CN112834407B (en) * | 2021-01-09 | 2023-07-21 | 西安石油大学 | Device and method for measuring core seepage force |
| CN112858044A (en) * | 2021-03-15 | 2021-05-28 | 中南大学 | Test device and test method for shear seepage test |
| CN112858044B (en) * | 2021-03-15 | 2022-02-15 | 中南大学 | Test device and test method for shear seepage test |
| CN114279940A (en) * | 2022-03-03 | 2022-04-05 | 中国矿业大学(北京) | Visual teaching system for shear seepage characteristics of fractured rock mass |
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