CN216387050U - Test device for simulating rainfall-freeze thawing composite erosion soil body - Google Patents
Test device for simulating rainfall-freeze thawing composite erosion soil body Download PDFInfo
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- CN216387050U CN216387050U CN202122858055.4U CN202122858055U CN216387050U CN 216387050 U CN216387050 U CN 216387050U CN 202122858055 U CN202122858055 U CN 202122858055U CN 216387050 U CN216387050 U CN 216387050U
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- Prior art keywords
- soil
- tank
- freezing
- freeze thawing
- test device
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- 239000002689 soil Substances 0.000 title claims abstract description 93
- 230000003628 erosive effect Effects 0.000 title claims abstract description 25
- 238000010257 thawing Methods 0.000 title claims abstract description 22
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 238000007710 freezing Methods 0.000 claims abstract description 40
- 230000008014 freezing Effects 0.000 claims abstract description 40
- 239000007921 spray Substances 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 229910052742 iron Inorganic materials 0.000 claims description 15
- 239000005341 toughened glass Substances 0.000 claims description 7
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 3
- 239000011496 polyurethane foam Substances 0.000 claims description 3
- 238000011160 research Methods 0.000 abstract description 5
- 238000004162 soil erosion Methods 0.000 abstract description 4
- 238000005303 weighing Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model discloses a test device for simulating rainfall-freeze thawing composite erosion soil, which comprises freezing boxes in a square frame shape, soil grooves arranged between the freezing boxes and a spray head arranged at the top of the freezing boxes; the soil tank is of a square structure with an opening at the top; the soil tank comprises a horizontal soil tank and an inclined soil tank; the bottom of the inclined soil tank is provided with a sample collecting box; the bottom of the horizontal soil tank is provided with a lifter; the utility model can reasonably arrange the test in the room to carry out the test research, and is basically not interfered by other uncertain environments outside during the test; the test can be repeatedly carried out, and the obtained conclusion can be verified or checked; by changing a single variable; and finally, observing the phenomenon of soil erosion, and weighing the soil generated after the soil erosion to obtain the proportion of the silt generated by the soil with a certain mass.
Description
Technical Field
The utility model relates to the technical field of test devices, in particular to a test device for simulating rainfall-freeze thawing composite erosion soil.
Background
In temperate regions, more than 50% of soil loss occurs in a frozen soil layer thawing period, which is caused by excessive soil surface moisture content, and a waterproof core soil layer in the soil is the main reason for high soil surface moisture content; 2) the influence of the impervious bed on the soil dispersivity under the precipitation condition; therefore, rainfall has a great influence on the dispersing power of soil with a impervious bed; however, due to the fact that the natural environment and the actual conditions of the soil body are complex and changeable, people research and study the erosion process of the soil body under the combined erosion of rainfall and freeze thawing to further obtain the erosion mechanism of the soil body and the condition that the soil producing and sand producing capability of the soil body under different rainfall intensity, freeze thawing cycle times and temperatures hardly achieves a single variable.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a test device for simulating rainfall-freeze thawing composite erosion soil to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme:
a test device for simulating rainfall-freeze thawing composite erosion soil comprises freezing boxes in a square frame shape, soil grooves arranged between the freezing boxes and spray heads arranged at the tops of the freezing boxes; the soil tank is of a square structure with an opening at the top; the soil tank comprises a horizontal soil tank and an inclined soil tank; the bottom of the inclined soil tank is provided with a sample collecting box; the bottom of the horizontal soil tank is provided with a lifter; a water tank is arranged on one side of the freezing box; the water tank is connected with the spray head through a water pump and a pipeline; the interior of the freezing box is also provided with a compressor, an exhaust fan and a temperature control plate; the exhaust fan is arranged on the upper side of the temperature control plate; the temperature control plate extends to the outer side of the freezing box; and a compressed air pipe is arranged on the front side of the exhaust fan.
As a still further scheme of the utility model: the horizontal soil tank is hinged with the inclined soil tank.
As a still further scheme of the utility model: the compressed air pipe is connected with a compressor, and the compressor is arranged on the outer side of the freezing box.
As a still further scheme of the utility model: the soil tank comprises a threaded iron plate at the bottom, fixed rods connected with the threaded iron plate are arranged on the side edge of the threaded iron plate at intervals, an iron frame is arranged at the top of each fixed rod, and toughened glass is arranged between the inner walls of the fixed rods.
As a still further scheme of the utility model: the side wall of the freezing box is provided with a through hole; a door is arranged inside the through hole.
As a still further scheme of the utility model: a freezing constant temperature layer is wrapped on the outer side of the wall of the freezing box; the freezing constant-temperature layer is made of polyurethane foam.
As a still further scheme of the utility model: and a flow meter is arranged on a pipeline connecting the water tank and the spray head.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model can reasonably arrange the test in the room to carry out the test research, and is basically not interfered by other uncertain environments outside during the test; the test can be repeatedly carried out, and the obtained conclusion can be verified or checked; by changing a single variable; and finally, observing the phenomenon of soil erosion, and weighing the soil generated after the soil erosion to obtain the proportion of the silt generated by the soil with a certain mass.
Drawings
Fig. 1 is a schematic structural diagram of a main view of a test device for simulating rainfall-freeze thawing composite erosion soil.
Fig. 2 is a left-side view structural schematic diagram of a test device for simulating rainfall-freeze thawing composite erosion soil.
In the figure: the device comprises a freezing box 1, a soil tank 2, a threaded bottom plate 3, toughened glass 4, a spray head 5, a sample collecting box 6, a lifter 7, a water tank 8, a flowmeter 9, a water pump 10, an exhaust fan 11, a temperature control plate 12, a freezing constant temperature layer 13 and a door 14.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, in the embodiment of the present invention, a test apparatus for simulating rainfall-freeze thawing composite erosion soil includes a freezing box 1 in a square frame shape, a soil tank 2 disposed between the freezing boxes 1, and a nozzle 5 disposed at the top of the freezing box 1; the soil tank 2 is of a square structure with an opening at the top; the soil tank 3 comprises a horizontal soil tank and an inclined soil tank; the bottom of the inclined soil tank is provided with a sample collecting box 6; the bottom of the horizontal soil tank is provided with a lifter 7; a water tank 8 is arranged on one side of the freezing box 1; the water tank 8 is connected with the spray head 5 through a water pump and a pipeline; the interior of the freezing box 1 is also provided with a compressor, an exhaust fan 11 and a temperature control plate 12; the exhaust fan 11 is arranged on the upper side of the temperature control plate 12; the temperature control plate 12 extends to the outer side of the freezer 1; a compressed air pipe is arranged on the front side of the exhaust fan 11; the exhaust fan is not used for eroding the soil sample wind, but is matched with the compressor to perform gas conversion so as to achieve the cooling effect of the freezing box.
The horizontal soil tank is hinged with the inclined soil tank.
The compressed air pipe is connected with a compressor, and the compressor is arranged on the outer side of the freezing box 1.
The soil tank 2 comprises a threaded iron plate 3 at the bottom, fixing rods connected with the threaded iron plate 3 are arranged at the side edges of the threaded iron plate 3 at intervals, an iron frame is arranged at the top of each fixing rod, and toughened glass 4 is arranged between the inner walls of the fixing rods.
The side wall of the freezing box 1 is provided with a through hole; a door 14 is provided inside the through hole.
A freezing constant temperature layer 13 is wrapped on the outer side of the wall of the freezing box 1; the freezing constant temperature layer 13 is made of polyurethane foam.
And a flow meter is arranged on a pipeline connecting the water tank 8 and the spray head 5.
The temperature control board 12 is connected with the compressor and the exhaust fan through a lead, and the temperature control board 12 with keys can adjust the temperature of the freezer through the compressor and the exhaust fan and can display the real-time temperature.
The positions where the inclined sections of the horizontal section of the soil tank are connected are hinged, namely the horizontal section and the inclined sections of the soil tank can rotate mutually. The height of the horizontal section of the soil tank can be adjusted through the elevator, and then the angle of the inclined section of the soil tank can be adjusted.
A soil tank model is designed according to research requirements, the total length of the soil tank of the model is 4.0m, the width of the soil tank is 0.8m, and the depth of the soil tank is 0.6m, a threaded iron plate is welded at the bottom of the water tank, and transparent toughened glass with the thickness of 8mm is arranged on the periphery of the soil tank, so that the soil body compactness can be controlled by making marks in a layering mode in the soil filling process, and the processes of water infiltration and wetting peak descending can be conveniently observed in the test process. The toughened glass junction and the toughened glass and bottom screw iron plate, iron stand junction use glass to glue fixedly and can prevent the infiltration, also can increase the overall stability of model safe and reliable more.
The utility model mainly researches the erosion process of the soil body under the combined erosion of rainfall and freeze thawing to further obtain the erosion mechanism of the soil body and the mud and sand production capacity of the soil body under different rainfall intensity, freeze thawing cycle times and temperature. The rainfall condition is applied to the soil body after the soil body is naturally settled for a certain time, a switch of a freezing box is opened after the soil body is wet, the temperature is controlled, the rainfall intensity is controlled through the switch, the rainfall is recorded through a rain gauge, different temperatures and freezing and thawing cycle times are adjusted through a temperature control plate, the phenomenon of soil body erosion is finally observed, and soil generated after the soil body erosion is weighed to obtain the sediment proportion generated by the soil body with certain mass.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A test device for simulating rainfall-freeze thawing composite erosion soil is characterized by comprising freezing boxes (1) in a square frame shape, soil tanks (2) arranged between the freezing boxes (1) and spray heads (5) arranged at the tops of the freezing boxes (1); the soil tank (2) is of a square structure with an opening at the top; the soil tank (2) comprises a horizontal soil tank and an inclined soil tank; the bottom of the inclined soil tank is provided with a sample collecting box (6); the bottom of the horizontal soil tank is provided with a lifter (7); a water tank (8) is arranged on one side of the freezing box (1); the water tank (8) is connected with the spray head (5) through a water pump and a pipeline; a compressor, an exhaust fan (11) and a temperature control plate (12) are also arranged in the freezing box (1); the exhaust fan (11) is arranged on the upper side of the temperature control plate (12); the temperature control plate (12) extends to the outer side of the freezing box (1); and a compressed air pipe is arranged on the front side of the exhaust fan (11).
2. The device for simulating a rainfall-freeze thawing combined erosion soil body of claim 1, wherein the horizontal soil tank is hinged with the inclined soil tank.
3. A test device for simulating rainfall-freeze thawing composite erosion soil according to claim 1, wherein the compressed air pipe is connected with a compressor, and the compressor is arranged outside the freezing box (1).
4. The test device for simulating rainfall-freeze thawing composite erosion soil body according to claim 1, wherein the soil tank (2) comprises a threaded iron plate (3) at the bottom, fixing rods connected with the threaded iron plate (3) are arranged at intervals at the side edges of the threaded iron plate, an iron frame is arranged at the top of the fixing rods, and toughened glass (4) is arranged between the inner walls of the fixing rods.
5. The test device for simulating rainfall-freeze thawing composite erosion soil body according to claim 1, wherein the side wall of the freezing box (1) is provided with a through hole; a door (14) is arranged in the through hole.
6. The test device for simulating rainfall-freeze thawing composite erosion soil body according to claim 1, wherein the outer side of the wall of the freezing box (1) is wrapped with a freezing constant temperature layer (13); the freezing constant-temperature layer (13) is made of polyurethane foam.
7. The test device for simulating rainfall-freeze thawing composite erosion soil body according to claim 1, wherein a flow meter is arranged on a pipeline connecting the water tank (8) and the spray head (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122858055.4U CN216387050U (en) | 2021-11-22 | 2021-11-22 | Test device for simulating rainfall-freeze thawing composite erosion soil body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122858055.4U CN216387050U (en) | 2021-11-22 | 2021-11-22 | Test device for simulating rainfall-freeze thawing composite erosion soil body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216387050U true CN216387050U (en) | 2022-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122858055.4U Expired - Fee Related CN216387050U (en) | 2021-11-22 | 2021-11-22 | Test device for simulating rainfall-freeze thawing composite erosion soil body |
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| Country | Link |
|---|---|
| CN (1) | CN216387050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115236115A (en) * | 2022-06-24 | 2022-10-25 | 吉林大学 | Testing device and method for simulating slope erosion in freeze-thaw cycle |
-
2021
- 2021-11-22 CN CN202122858055.4U patent/CN216387050U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115236115A (en) * | 2022-06-24 | 2022-10-25 | 吉林大学 | Testing device and method for simulating slope erosion in freeze-thaw cycle |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220426 |