CN221124237U - Device for simulating saturated-unsaturated permeation damage experiment - Google Patents
Device for simulating saturated-unsaturated permeation damage experiment Download PDFInfo
- Publication number
- CN221124237U CN221124237U CN202323186902.2U CN202323186902U CN221124237U CN 221124237 U CN221124237 U CN 221124237U CN 202323186902 U CN202323186902 U CN 202323186902U CN 221124237 U CN221124237 U CN 221124237U
- Authority
- CN
- China
- Prior art keywords
- unsaturated
- sample tube
- saturated
- simulating
- permeation
- 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
- 238000002474 experimental method Methods 0.000 title claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 7
- 238000012360 testing method Methods 0.000 claims description 9
- 239000012780 transparent material Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 25
- 238000000034 method Methods 0.000 abstract description 17
- 230000008595 infiltration Effects 0.000 abstract description 9
- 238000001764 infiltration Methods 0.000 abstract description 9
- 230000035699 permeability Effects 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 230000003204 osmotic effect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005527 soil sampling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model provides a device for simulating a saturated-unsaturated permeation damage experiment, which comprises a sample tube, wherein one end of the sample tube is communicated with the atmosphere; the other end of the sample tube is connected to one end of the pressure gauge through the reducer tube; the other end of the pressure gauge is connected with a water delivery device and a pressurizing device; a camera is arranged in front of the sample tube. The experimental device has a simple structure, is convenient to observe, and can more vividly show the process of soil body infiltration damage and the mechanism of soil body infiltration damage.
Description
Technical Field
The utility model relates to the technical field of geotechnical engineering, in particular to a device for simulating a saturated-unsaturated permeation damage experiment.
Background
In many modern construction projects, soil stabilization is an important problem, the soil is a mixture of three phases of liquid, gas and solid, continuous pores exist among soil particles, and water in the soil particles can flow along the pores due to potential energy. Under the condition of rainfall, the surface of the slope on the slope surface forms an air sealing condition due to infiltration of rainwater, gas in soil particles in the slope cannot come out, the gas can squeeze water on the slope surface, so that pore water pressure gradient of the slope surface is increased, and permeation damage is caused.
The defects of the existing seepage damage experimental device are as follows:
1. The comparison document CN102749276B discloses a device and a method for measuring the permeability coefficient of unsaturated soil, wherein the upper end of a stainless steel tank body is provided with an upper reverse filtering device, and the lower end of the stainless steel tank body is provided with a lower reverse filtering device; the longer surface of the stainless steel groove body is provided with an open end surface, and toughened glass for sealing the open end surface is arranged on the open end surface; a plurality of soil moisture sensors and soil tensiometers are respectively arranged on at least one end face of the stainless steel tank body from top to bottom. Compared with the prior art, the device and the method for measuring the permeability coefficient of the unsaturated soil have the beneficial effects that: the method can directly obtain the unsaturated soil permeability coefficient by using a simple one-dimensional infiltration test and an iteration method, has simple instrument manufacture and high measurement precision, and can be used for measuring the unsaturated permeability coefficient of a sample and the soil-water characteristic curve of the sample. But the structure of the device can not record the mechanism of soil body infiltration damage and can not simulate the process of saturated-unsaturated infiltration damage.
Therefore, it is desirable to provide a device for simulating the saturated-unsaturated osmotic failure test, which can more visually demonstrate the process of osmotic failure of the soil body and the mechanism of osmotic failure of the soil body.
Disclosure of Invention
The utility model aims to overcome the defects and provide a device for simulating a saturated-unsaturated permeation damage experiment so as to solve the problems in the background technology.
The utility model aims to solve the technical problems, and adopts the technical scheme that: the device for simulating the saturated-unsaturated permeation damage experiment comprises a sample tube, wherein one end of the sample tube is communicated with the atmosphere, and the other end of the sample tube is connected with one end of a pressure gauge through a reducer tube; the other end of the pressure gauge is connected with a water delivery device and a pressurizing device, and a camera is erected in front of the sample tube.
Preferably, the reducer pipe is of a specification of 5 cm to 2 cm in diameter.
Preferably, the water delivery device comprises an internal water tank, a water outlet of the internal water tank is connected with a water delivery pipe, and the other end of the water delivery pipe is connected with a pressure gauge.
Preferably, the water outlet of the water tank is provided with a valve.
Preferably, the air outlet of the air tank in the pressurizing device is connected with one end of an air pipe, and the other end of the air pipe is connected with the pressure gauge.
Preferably, a valve is arranged on the air outlet of the air tank.
Preferably, the length of the sample tube is 50 cm, and the sample tube is made of transparent materials.
Preferably, the sample tube is provided with a graduated scale along the length direction.
The utility model has the following beneficial effects:
1. The sample tube is transparent, so that the soil infiltration process can be better observed;
2. according to the utility model, the graduated scale is arranged along the length direction of the sample tube, the soil sampling length can be rapidly read through the graduated scale, and the pressure gradient of the saturation region can be calculated, so that the permeation process can be better analyzed;
3. the utility model comprises a camera which can record the seepage process of soil mass so as to better analyze the seepage process;
4. The utility model has simple structure, is convenient for observation, and can fully simulate the process of saturated-unsaturated soil infiltration damage.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the experimental mechanism of the present utility model.
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
1-2, a device for simulating a saturated-unsaturated permeation damage experiment comprises a sample tube 1, wherein one end of the sample tube 1 is communicated with the atmosphere, and the other end of the sample tube 1 is connected to one end of a pressure gauge 2 through a reducer tube 6; the other end of the pressure gauge 2 is connected with a water delivery device 3 and a pressurizing device 4, and a camera 7 is arranged in front of the sample tube 1. The device can simulate the seepage damage of saturated-unsaturated soil body by the method.
Preferably, the diameter of the reducer pipe 6 is 5 cm to 2 cm, so that the experimental process can be controlled better.
Preferably, the water delivery device 3 comprises an inner water tank 302, a water outlet of the inner water tank 302 is connected with a water delivery pipe 301, and the other end of the water delivery pipe 301 is connected with the pressure gauge 2. The water pressure can be controlled in time.
Preferably, a valve 303 is installed at the water outlet of the water tank 302. The flow rate can be better controlled.
Preferably, the air outlet of the air tank 402 inside the pressurizing device 4 is connected with the air pipe 401, and the other end of the air pipe 401 is connected with the pressure gauge 2.
Preferably, a valve 403 is installed on the air outlet of the air tank 402. The air pressure can be better controlled.
Preferably, the sample tube 1 is 50 cm long and is made of transparent material. The infiltration process of the soil mass can be better observed, and the recording of the camera 7 is facilitated.
Preferably, the sample tube 1 is provided with a scale 5 along the length direction. The pressure gradient in the saturation region can be calculated to better analyze the permeation process.
The working principle of the embodiment is as follows:
step 1, filling soil with the length of 40 cm into a sample tube 1, wherein one side of the sample tube 1 is communicated with the atmosphere, and the other side is connected with a pressure gauge 2, a water delivery device 3 and a pressurizing device 4;
Step 2, opening a valve 303, injecting water into the soil body of the sample tube 1 until the soil body is completely saturated, and closing the valve 303;
step 3, opening a camera 7, and recording the soil seepage process;
And 4, opening a valve 403, pressurizing the sample tube 1, maintaining the air pressure of 6 meters, reading a specific pressure value through a pressure gauge 2, and closing the valve 403 after soil body permeation is damaged.
The above embodiments are only preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the scope of the present utility model should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.
Claims (8)
1. The device for simulating the saturated-unsaturated permeation damage experiment comprises a sample tube (1), and is characterized in that: one end of the sample tube (1) is communicated with the atmosphere, and the other end of the sample tube (1) is connected to one end of the pressure gauge (2) through the reducer tube (6); the other end of the pressure gauge (2) is connected with a water delivery device (3) and a pressurizing device (4), and a camera (7) is erected in front of the sample tube (1).
2. The apparatus for simulating a saturated-unsaturated permeation damage test of claim 1, wherein: the diameter of the reducer pipe (6) is 5 cm to 2 cm.
3. The apparatus for simulating a saturated-unsaturated permeation damage test of claim 1, wherein: the water delivery device (3) comprises an inner water tank (302), a water outlet of the inner water tank (302) is connected with a water delivery pipe (301), and the other end of the water delivery pipe (301) is connected with a pressure gauge (2).
4. A device for simulating a saturated-unsaturated permeation damage test according to claim 3, wherein: the water outlet of the water tank (302) is provided with a valve (303).
5. The apparatus for simulating a saturated-unsaturated permeation damage test of claim 1, wherein: an air outlet of an air tank (402) in the pressurizing device (4) is connected with one end of an air pipe (401), and the other end of the air pipe (401) is connected with the pressure gauge (2).
6. The apparatus for simulating a saturated-unsaturated permeation damage test of claim 5, wherein: the air outlet of the air tank (402) is provided with a valve.
7. The apparatus for simulating a saturated-unsaturated permeation damage test of claim 1, wherein: the length of the sample tube (1) is 50 cm, and the sample tube is made of transparent materials.
8. The apparatus for simulating a saturated-unsaturated permeation damage test of claim 1, wherein: the sample tube (1) is provided with a graduated scale (5) along the length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323186902.2U CN221124237U (en) | 2023-11-24 | 2023-11-24 | Device for simulating saturated-unsaturated permeation damage experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323186902.2U CN221124237U (en) | 2023-11-24 | 2023-11-24 | Device for simulating saturated-unsaturated permeation damage experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221124237U true CN221124237U (en) | 2024-06-11 |
Family
ID=91362721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323186902.2U Active CN221124237U (en) | 2023-11-24 | 2023-11-24 | Device for simulating saturated-unsaturated permeation damage experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221124237U (en) |
-
2023
- 2023-11-24 CN CN202323186902.2U patent/CN221124237U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201130143Y (en) | Porous medium material permeability coefficient determinator | |
| CN105588796B (en) | A kind of device of accurate quick measure soil permeability coefficient | |
| CN103776979B (en) | A kind of coal seam water infusion suppresses analog detection method and the device of desorption of mash gas effect | |
| CN204789161U (en) | A one -dimensional consolidation apparatus for testing soil body consolidation deformation and osmotic coefficient | |
| CN103728435B (en) | Rainfall and underground water coupling slope simulation test device and test method | |
| CN105043960B (en) | A kind of modified soil body joint consolidation permeameter | |
| CN2630839Y (en) | Coarse particle osmotic coefficient and soil body osmotic deformation measuring instrument | |
| CN106092853A (en) | A kind of soil mass water air humidity falls into consolidation infiltration simultaneous determination instrument | |
| CN106370580B (en) | Quick penetration test device suitable for low-permeability medium | |
| CN105606507B (en) | Cohesive soil critical hydraulic gradient tester and test method | |
| CN208224038U (en) | A kind of experimental provision for surveying permeability during the rock failure mechanism of rock in real time with constant flow | |
| CN110501272A (en) | The method for testing porous rock porosity and permeability simultaneously under the conditions of triaxial stress and pore pressure | |
| CN103792175A (en) | Unsaturated rock-earth mass constant head reverse penetration testing method | |
| CN105910973A (en) | Stress-related coarse-grained soil seepage deformation characteristic tester and test method | |
| CN101806701A (en) | Testing apparatus used for measuring osmotic potential of unsaturated soil | |
| CN106814017A (en) | Nano sol reinforces the permeability and modulus at rapid deformation relation test device and method of sand | |
| CN103293286A (en) | Testing device for testing soil phase transformation-constitutive coupling law, and method | |
| CN205175883U (en) | Quick measuring device of soil sample osmotic coefficient | |
| CN221124237U (en) | Device for simulating saturated-unsaturated permeation damage experiment | |
| Yin | A double cell triaxial system for continuous measurement of volume changes of an unsaturated or saturated soil specimen in triaxial testing | |
| CN206504983U (en) | A kind of easy device for measuring effective porosity of permeable concrete | |
| CN210953739U (en) | Geotextile performance test system for compacted grouting soil nails | |
| CN110736692A (en) | automatic device and method for measuring permeability coefficient of soil body | |
| CN114324104B (en) | Cement concrete coefficient of permeability test experimental apparatus | |
| CN207470190U (en) | It simulates slurry shield excavation face mud film forming and measures the device of mud film infiltration coefficient |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |