CN216955634U - Equipment for simulating permeability coefficient of fractured rock mass - Google Patents
Equipment for simulating permeability coefficient of fractured rock mass Download PDFInfo
- Publication number
- CN216955634U CN216955634U CN202220455779.6U CN202220455779U CN216955634U CN 216955634 U CN216955634 U CN 216955634U CN 202220455779 U CN202220455779 U CN 202220455779U CN 216955634 U CN216955634 U CN 216955634U
- Authority
- CN
- China
- Prior art keywords
- permeability coefficient
- simulating
- rock mass
- transparent
- fractured rock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses equipment for simulating the permeability coefficient of a fractured rock mass, which comprises a pressure measurement and control cabinet and a glass cylinder, wherein the pressure measurement and control cabinet is communicated with the glass cylinder; an organic glass block and a drainage tubule are arranged in the glass cylinder, a first transparent stone layer and a second transparent stone layer are respectively arranged at the top and the bottom of the organic glass block, and a transparent disc is arranged between the first transparent stone layer and the top cover; an iron base is arranged below the second permeable stone layer, and a circular pore channel is formed in the base part of the iron base; the transparent disc is communicated with a drainage thin tube, and the drainage thin tube is communicated with a drainage pipe through a circular pore passage; the side surface of the bottom of the glass cylinder is provided with a round hole, and the glass cylinder is communicated with the confining pressure pipe through the round hole. The utility model can change the ambient pressure of the sample through the pressure measurement and control cabinet, thereby changing the permeability of the model, and the permeability coefficient of the model is converted through calculation by measuring the water discharge of the physical model sample in the preset time.
Description
Technical Field
The utility model relates to the technical field of engineering construction, in particular to experimental equipment for simulating the permeability coefficient of a fractured rock mass by changing confining pressure of a transparent physical model.
Background
The transparent physical simulation test is an effective means for researching the internal deformation damage characteristic and the seepage characteristic of the rock-soil mass, and has incomparable advantages compared with other methods. At present, in practical experiments, most of transparent physical models are made by adopting pure silicon powder as aggregate and preparing cementing materials with the mass ratio of liquid paraffin to silica gel powder being 0.855, and the transparent physical models are similar to actual rock masses and mainly have the aspects of basic physical and mechanical properties such as density, uniaxial compressive strength, elastic modulus, cohesive force, internal friction angle and the like; the main research content is deformation destruction characteristic inside rock-soil body.
For fractured rock mass, the permeability coefficient is an extremely important parameter, and has great influence on the strength and deformation of the fractured rock mass. But the existing research lacks a transparent physical model test for simulating the permeability coefficient of the fractured rock mass.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides equipment for simulating the permeability coefficient of the fractured rock mass, and solves the problem of lack of a transparent physical model test for simulating the permeability coefficient of the fractured rock mass.
In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model is as follows:
the equipment for simulating the permeability coefficient of the fractured rock mass comprises a pressure measurement and control cabinet and a glass cylinder, wherein the pressure measurement and control cabinet is communicated with the glass cylinder;
an organic glass block and a drainage tubule are arranged in the glass cylinder, a first transparent stone layer and a second transparent stone layer are respectively arranged at the top and the bottom of the organic glass block, and a transparent disc is arranged between the first transparent stone layer and the top cover;
an iron base is arranged below the second permeable stone layer, and a circular pore channel is formed in the base part of the iron base;
the transparent disc is communicated with a drainage thin tube, and the drainage thin tube is communicated with a drainage pipe through a circular pore passage;
a round hole is formed in the side face of the bottom of the glass cylinder, and the glass cylinder is communicated with the confining pressure pipe through the round hole;
the drain pipe communicates with the measuring cylinder that the inside is used for surveing the sample displacement of pressure measurement and control cabinet, and the confining pressure pipe is connected with the inside confining pressure table of pressure measurement and control cabinet, is provided with the pressure regulating hand wheel that is used for adjusting the ambient pressure of sample in the pressure measurement and control cabinet.
According to the utility model, the pressure regulating hand wheel is adjusted to control the ambient pressure of the model sample, the pressure measuring and controlling cabinet can automatically control the pressure regulating hand wheel to rotate, so that the pressure is kept stable at a preset value, and the water discharge of the physical model sample in a preset time is measured and then converted into the permeability coefficient of the model through calculation.
Further, the center of iron base is equipped with the bulge, and annular basin is seted up at the top of bulge.
Further, the protrusion is concentric with the iron base.
The bulge is ensured to be positioned in the center of the iron base.
Further, the organic glass piece passes through second permeable stone layer fixed mounting on the bulge.
The position of the organic glass block in the glass cylinder is fixed.
Further, the organic glass block comprises a plurality of organic glass plates which are stacked.
A plurality of organic glass board can set up the shaping in advance for the organic glass piece.
Furthermore, a transparent rubber film is attached to the organic glass block.
The transparent rubber film has good waterproof performance.
Furthermore, a waterproof nut is arranged on the top cover.
The waterproof nut prevents the water in the glass jar from overflowing.
Furthermore, a drain valve and a confining pressure valve are respectively arranged on the drain pipe and the confining pressure pipe.
The drain valve and the confining pressure valve respectively control the closing of the drain pipe and the confining pressure pipe, and further the surrounding pressure of the model sample is controlled.
Furthermore, the transparent disc is respectively in close contact with the first permeable stone layer and the top cover, and the iron base is in close contact with the second permeable stone layer.
The transparent disc, the first transparent stone layer and the second transparent stone layer are guaranteed to be fixed after the glass cylinder is filled with water.
Furthermore, both edges of the iron base are fixedly connected with the glass cylinder through fixing bolts.
The iron base is guaranteed to be fixed at the bottom of the glass jar.
The utility model has the beneficial effects that:
the utility model can change the ambient pressure of the sample through the pressure measurement and control cabinet, thereby changing the permeability of the model, and the permeability coefficient of the model is converted through calculation by measuring the water discharge of the physical model sample in the preset time.
Drawings
FIG. 1 is a schematic structural diagram of an apparatus for simulating the permeability coefficient of a fractured rock mass.
FIG. 2 is a schematic structural diagram of a transparent physical model for simulating permeability coefficient of a fractured rock mass.
FIG. 3 is a schematic diagram of a plexiglas block structure of an apparatus for simulating permeability coefficient of a fractured rock mass.
FIG. 4 is a schematic diagram of an iron base structure of an apparatus for simulating permeability coefficient of a fractured rock mass.
Wherein, 1, a glass jar; 2. a waterproof nut; 3. a transparent disc; 4. a fine drainage pipe; 5. a first water-permeable stone layer; 6. an organic glass block; 7. a transparent rubber film; 8. an iron base; 9. fixing the bolt; 10. an annular water tank; 11. a drain pipe; 12. a drain valve; 13. enclosing and pressing the pipe; 14. a pressure surrounding valve; 15. a measuring cylinder; 16. a confining pressure meter; 17. a pressure regulating hand wheel; 18. a pressure measurement and control cabinet; 19. a top cover; 20. a second water-permeable stone layer; 21. a projection; 22. a circular duct; 23. a circular hole; 24. a base part.
Detailed Description
The embodiments of the present invention are described so as to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the utility model as defined and defined in the appended claims, and all matters produced by the utility model using the inventive concept are protected.
As shown in figures 1, 2 and 3, the utility model provides equipment for simulating the permeability coefficient of a fractured rock mass, which comprises a glass cylinder 1 with a top cover 19, wherein the top cover 19 is provided with a round hole for connecting with a waterproof nut 2, the height of the glass cylinder 1 is 17cm, and the diameter of the waterproof nut 2 is 1 cm.
The inside organic glass piece 6 and the drainage tubule 4 that sets up of glass jar 1, the top of organic glass piece 6 sets up the first permeable stone layer 5 of in close contact with, and the bottom sets up the second permeable stone layer 20 of in close contact with, and the iron base 8 of in close contact with is installed to second permeable stone layer below, and the transparent disc 3 of in close contact with is set up to 5 tops on first permeable stone layer.
The organic glass block 6 is formed by stacking and cutting a plurality of organic glass plates together to form a transparent physical model for simulating a cracked rock body, a transparent rubber film 7 is arranged on the organic glass block 6, the transparent rubber film 7 is sleeved on the transparent physical model formed by the organic glass blocks 6 to be molded, and the diameter and the height of the organic glass block 6 are 50cm and 100cm respectively.
The edge of the iron base 8 is provided with 2 fixing bolts 9 used for being connected with the glass cylinder 1 with the top cover 19, each bolt is provided with a gasket and a nut, and when the test is started, the glass fiber reinforced plastic cylinder 1 with the top cover 19 and the iron base 8 can be fixed together through the 2 fixing bolts 9 to form a closed pressure chamber.
A convex part 21 is arranged at the center of the iron base 8, an annular water tank 10 is arranged at the top of the convex part 21, a round hole passage 22 is arranged on a base part 24 on the iron base 8, the center of the convex part is the same as the center of the iron base 8, the diameter of the iron base 8 is 15cm, the thickness of the iron base 8 is 2.2cm, and the purpose is to stabilize the whole device during the test; the height of the convex part is 2 cm; the diameter of the inner ring of the annular water tank 10 is 2.3cm, and the diameter of the outer ring is 3.9cm, so that permeation can be ensured to occur along the whole end face of the sample.
The drain pipe 11 communicates with a measuring cylinder 15 inside the pressure measurement and control cabinet 18 for measuring the sample displacement, the measuring cylinder 15 has volume scales (0-75 ml), and the scale unit is accurate to ml.
The round hole 23 is seted up to the side of glass jar 1, and glass jar 1 passes through the round hole and communicates with confined pressure pipe 13, sets up on the confined pressure pipe 13 and encloses pressure valve 14, and confined pressure pipe 13 is connected with the inside confined pressure table 16 of pressure measurement and control cabinet 18, encloses pressure table 16 and is the electronic display table, can show the pressure value around the sample.
A pressure regulating hand wheel 17 is arranged in the pressure measurement and control cabinet 18, and the pressure regulating hand wheel 17 is used for regulating the surrounding pressure of the sample.
A test preparation stage:
firstly, sleeving a transparent rubber film 7 on a transparent physical model consisting of a plurality of organic glass blocks 6, then respectively arranging a first transparent stone layer 5 and a second transparent stone layer 20 at two ends of a model sample, fixing the second transparent stone layer 20 on an iron base 8 through a rubber band, and fixing the first transparent stone layer 5 on a transparent disc 3 through the rubber band; then the glass jar 1 with the top cover 19 and the iron base 8 are fixed together through 2 fixing bolts 9; the screw cap on the top cover 19 is unscrewed, water is injected into the pressure chamber through the siphon principle, after the water is filled, the screw cap is screwed down to form a closed pressure chamber, and the test preparation stage is completed at this time.
The working principle of the utility model is as follows:
the method comprises the steps of closing a drain valve 12, opening a confining pressure valve 14, controlling the ambient pressure of a model sample through a pressure regulating hand wheel 17, stopping rotating the pressure regulating hand wheel 17 when a confining pressure meter 16 reaches a preset pressure value, and automatically controlling the pressure regulating hand wheel 17 to rotate by a pressure measuring and controlling cabinet 18 so as to keep the ambient pressure stable at a preset value;
and then, opening the drain valve 12, measuring the water discharge of the physical model sample within the preset time, converting the water discharge into the permeability coefficient of the model through a related formula, continuously adjusting the ambient pressure of the model sample through repeated tests, and changing the permeability coefficient of the model sample, so that the purpose of simulating the permeability coefficient of the fractured rock mass can be finally achieved.
While the present invention has been described in detail with reference to the embodiments, the scope of the present invention should not be limited to the embodiments. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.
Claims (10)
1. An apparatus for simulating the permeability coefficient of a fractured rock mass, comprising: comprises a pressure measurement and control cabinet (18) and a glass cylinder (1) provided with a top cover (19) which are communicated with each other;
an organic glass block (6) and a water drainage tubule (4) are arranged in the glass cylinder (1), a first transparent stone layer (5) and a second transparent stone layer (20) are respectively arranged at the top and the bottom of the organic glass block (6), and a transparent disc (3) is arranged between the first transparent stone layer (5) and a top cover (19);
an iron base (8) is arranged below the second permeable stone layer, and a circular pore passage (22) is formed in a base part (24) of the iron base (8);
the transparent disc (3) is communicated with a fine drainage pipe (4), and the fine drainage pipe (4) is communicated with a drainage pipe (11) through a circular pore passage (22);
a round hole (23) is formed in the side face of the bottom of the glass cylinder (1), and the glass cylinder (1) is communicated with the confining pressure pipe (13) through the round hole (23);
the drain pipe (11) with graduated flask (15) intercommunication that pressure measurement and control cabinet (18) inside was used for surveing the sample displacement, enclose press pipe (13) with the inside confined pressure table (16) of pressure measurement and control cabinet (18) are connected, be provided with pressure regulating hand wheel (17) that are used for adjusting the ambient pressure of sample in pressure measurement and control cabinet (18).
2. An apparatus for simulating the permeability coefficient of a fractured rock mass according to claim 1, wherein: the iron base (8) is characterized in that a protruding portion (21) is arranged at the center of the iron base, and an annular water tank (10) is arranged at the top of the protruding portion (21).
3. An apparatus for simulating the permeability coefficient of a fractured rock mass according to claim 2, wherein: the convex part (21) and the iron base (8) are concentric circles.
4. An apparatus for simulating the permeability coefficient of a fractured rock mass according to claim 1, wherein: the organic glass block (6) is fixedly arranged on the protruding part (21) through a second transparent stone layer (20).
5. An apparatus for simulating the permeability coefficient of a fractured rock mass according to claim 4, wherein: the organic glass block (6) comprises a plurality of organic glass plates which are stacked.
6. Apparatus for simulating the permeability coefficient of a fractured rock mass according to claim 5, wherein: and a transparent rubber film (7) is attached to the organic glass block (6).
7. An apparatus for simulating the permeability coefficient of a fractured rock mass according to claim 1, wherein: and a waterproof nut (2) is arranged on the top cover (19).
8. An apparatus for simulating the permeability coefficient of a fractured rock mass according to claim 1, wherein: the drain pipe (11) and the confining pressure pipe (13) are respectively provided with a drain valve (12) and a confining pressure valve (14).
9. An apparatus for simulating the permeability coefficient of a fractured rock mass according to claim 1, wherein: transparent disc (3) respectively with first layer of permeable rock (5) and top cap (19) in close contact with, iron base (8) and second layer of permeable rock (20) in close contact with.
10. An apparatus for simulating the permeability coefficient of a fractured rock mass according to claim 1, wherein: and the two edges of the iron base (8) are fixedly connected with the glass cylinder (1) through fixing bolts (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220455779.6U CN216955634U (en) | 2022-03-02 | 2022-03-02 | Equipment for simulating permeability coefficient of fractured rock mass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220455779.6U CN216955634U (en) | 2022-03-02 | 2022-03-02 | Equipment for simulating permeability coefficient of fractured rock mass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216955634U true CN216955634U (en) | 2022-07-12 |
Family
ID=82293303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220455779.6U Active CN216955634U (en) | 2022-03-02 | 2022-03-02 | Equipment for simulating permeability coefficient of fractured rock mass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216955634U (en) |
-
2022
- 2022-03-02 CN CN202220455779.6U patent/CN216955634U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103389249B (en) | A kind of clay core wall Hydraulic fracturing test device and test method | |
| CN109883925B (en) | Variable-opening rough crack for visual experiment and manufacturing method thereof | |
| CN108612073A (en) | A kind of high-speed railway foundation expansion soil expansion potentiality analyzer | |
| CN102353624B (en) | Plastic concrete permeability test device and its test method | |
| WO2023040492A1 (en) | Device for indoor test of clogging characteristics of gravel pile drainage anti-liquefaction channel | |
| CN113533157B (en) | Variable-opening detachable fracture device for visual experiment | |
| CN108375532A (en) | Infiltration experiment device and test method | |
| CN110887738A (en) | Unsaturated soil collapsibility true triaxial apparatus capable of measuring substrate suction force and test method | |
| CN110389100A (en) | Temperature Control Type permeameter and its experimental method | |
| WO2022135222A1 (en) | Device and method for preparing sandy soil sample using water method | |
| CN109323902A (en) | A kind of experimental rig and test method of microorganism gelling Stabilization of Loess sample | |
| CN103454127A (en) | Similar material for small and medium solid-fluid coupled model test and preparation method thereof | |
| CN204630786U (en) | A kind of sludge consolidating sample making apparatus | |
| CN216955634U (en) | Equipment for simulating permeability coefficient of fractured rock mass | |
| CN204924802U (en) | Simple and easy consolidation test device that clay layer warp is sent to indoor simulation extraction pressure -bearing water | |
| CN209745717U (en) | triaxial hydraulic fracture test device | |
| CN111474326A (en) | Karst grouting simulation experiment device and karst grouting visual simulation experiment method based on 3D printing | |
| CN203101231U (en) | Fast testing device for seepage coefficient of macroporous concrete | |
| CN209167305U (en) | A kind of full-automatic constant head Seep- Solidifying cross matching device | |
| CN103033460B (en) | The determinator of soil body horizontal osmotic coefficient and method thereof | |
| CN111999142B (en) | MICP solidified calcareous sand bidirectional grouting cylindrical sample preparation instrument | |
| CN206348241U (en) | The measurement apparatus of vacuum preloading soil under action body consolidation deformation | |
| CN206787994U (en) | A kind of concrete permeable factor detection device | |
| CN211466784U (en) | A test piece making devices for measuring do not disperse concrete compressive strength under water | |
| CN108387497A (en) | A kind of bentonite waterproof blanket osmotic coefficient investigating method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |