CN208239268U - A kind of laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating - Google Patents
A kind of laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating Download PDFInfo
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- CN208239268U CN208239268U CN201820729606.2U CN201820729606U CN208239268U CN 208239268 U CN208239268 U CN 208239268U CN 201820729606 U CN201820729606 U CN 201820729606U CN 208239268 U CN208239268 U CN 208239268U
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- loading box
- rainfall
- anisotropic
- water
- unsaturated soil
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Abstract
The utility model discloses a kind of laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating, wherein, described device includes that the drawable demarcation plate for loading the soil sample point side of different permeability energy is provided in the loading box for providing the adjustable rainfall simulation structure, the loading box for loading soil sample and the rainwater-collecting measurement structure being connected to by pipeline with the loading box of varying strength rainfall.Apparatus structure provided by the utility model is simple, easy to use, can clearly observe the water percolating capacity that infiltrates path and quantitatively measure unsaturated soil of the rainwater inside unsaturated soil by the device.
Description
Technical field
The utility model relates to unsaturated soils theory application fields, more particularly to a kind of laterally abutted anisotropic unsaturated soil drop
Rain infiltrates apparatus for demonstrating.
Background technique
The a variety of soil encountered in engineering practice are mostly unsaturated soil, the change of the unsaturation soil body caused by precipitation
The variation of shape, intensity etc. is clearly distinguishable from saturated soil, this is confirmed by experience and theory.In the relative constant situation in temperature field
Under, the seepage field of the unsaturation soil body is also influenced by factors such as stress field, air-water migrations.Rock And Soil internal void water
Being pressed in rain infiltration can change in the process because of the migration of moisture, this shows as the drop of soil body matric suction inside unsaturated soil
It is low；The raising of saturated surface (level of ground water) is shown as inside saturated soil.For characterizing rainwater in unsaturated soil internal penetration speed
The parameter of rate --- infiltration coefficient is not only influenced by the soil bodys basic physical property such as mineral composition, porosity, can also be because of volume
The variation of water content and change.The soil body of nature is usual and inhomogenous, when there are the laterally abutted soil body, because of its permeability
It can have differences, the soil body infiltrates path and can change because of the change of rainfall intensity.
In recent years, with the development and application of the improvement of test method and testing equipment, the gas permeability measurement of unsaturated soil
Technology has obtained tremendous development.However, at present most of unsaturated soil infiltration experiment devices be merely able to realize quantitatively measure it is non-full
With the water percolating capacity of soil, but they can not make people intuitively recognize the permeation pathway of unsaturated soil, i.e., cannot be from outward appearance to inner essence
Cognition unsaturated soil Penetration Signature.
In view of the reality of unsaturated soils theory teaching demonstration and research work needs, currently need to develop a kind of test dress
It sets, acts on lower rainwater in the permeation pathway problem of laterally abutted inside soil body, to reach direct to simulate different rainfall intensities
It observes percolation path and quantitative determines the dual purpose of unsaturated soil water percolating capacity.
Therefore, the existing technology needs to be improved and developed.
Utility model content
In view of above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a kind of laterally abutted anisotropic unsaturation
Native rainfall infiltration apparatus for demonstrating, it is intended to which directly observation seepage flow road cannot be realized simultaneously by solving existing unsaturated soil infiltration experiment device
The problem of diameter and quantitative determination unsaturated soil water percolating capacity.
The technical solution of the utility model is as follows:
A kind of laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating, wherein including for providing varying strength drop
It the adjustable rainfall simulation structure of rainfall, the loading box for loading soil sample and is connected to by pipeline with the loading box
Rainwater-collecting measurement structure, be provided in the loading box for by different permeability can load drawable point of soil sample point side
Partition.
The laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating, wherein the adjustable rainfall simulation
Structure includes the water feeding tank being sequentially communicated by pipeline, water pump and rainfall spray head, and the rainfall spray head hangs on the loading
The upper end of case.
The laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating, wherein the connection water pump and rainfall are sprayed
The water adjusting valve for regulating and controlling water flow is provided on the pipeline of head.
The laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating, wherein the loading box bottom is located at can
The position for detaching demarcation plate two sides is provided with several apopores.
The laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating, wherein the loading box outer wall upper end is also
Several water collection sheets are provided with, several water collection sheets form sealing structure around loading box, and the sealing structure bottom is provided with
Leakage hole.
The described laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating, wherein the water collection sheet include perpendicular to
First water fender of level ground and it is connect and is formed the second flap of 20-60 ° of angle with the first water blocking board bottom end,
The second flap is fixed on the outer wall of the loading box.
The laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating, wherein what the loading box was square
Transparent glass container is provided with scale on the transparent glass container side wall.
The laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating, wherein the loading box bottom is provided with
One layer of full water permeable stone is equipped with wet filter paper on the permeable stone.
The laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating, wherein the rainwater-collecting measurement structure
It is leaked including the graduated cylinder being connect by pipeline with loading box bottom apopore and by pipeline and the sealing structure bottom
The rainwater collection header of water hole connection.
A kind of laterally abutted anisotropic unsaturated soil rainfall infiltration demenstration method, wherein comprising steps of
Drawable demarcation plate two sides load the different soil sample of permeance property respectively in the loading box, when soil sample is loaded into
When with flushing at the top of the loading box, the drawable demarcation plate is taken out；
Dyestuff water is added in water feeding tank, starts water pump, water transfer valve regulation rainfall density is passed through according to experiment demand；
It observes under specific condition of raining, the soil sample storm seepage situation of two kinds of different permeability energy, and passes through soil sample color
Variation observation rain penetration path；
Rain infiltration depth is quantitatively recorded according to loading box side wall scale, and rainwater is measured completely through soil sample by graduated cylinder
When water percolating capacity.
The utility model has the advantages that laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating provided by the utility model includes being used for
The adjustable rainfall simulation structure of varying strength rainfall, the loading box for loading soil sample are provided and pass through pipeline and institute
The rainwater-collecting measurement structure of loading box connection is stated, the apparatus structure is simple, easy to use, can clearly see by the device
It examines rainwater and infiltrates path inside unsaturated soil, and can quantitatively measure the water percolating capacity of unsaturated soil.
Detailed description of the invention
Fig. 1 is a kind of knot of laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating preferred embodiment of the utility model
Structure schematic diagram.
Fig. 2 is the side viewing angle constructions schematic diagram of the utility model loading box preferred embodiment.
Fig. 3 is the structural schematic diagram at the vertical view visual angle of the utility model loading box preferred embodiment.
Fig. 4 is a kind of stream of laterally abutted anisotropic unsaturated soil rainfall infiltration demenstration method preferred embodiment of the utility model
Cheng Tu.
Specific embodiment
The utility model provides a kind of laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating, to make the utility model
Purpose, technical solution and effect it is clearer, clear, the utility model is further described below.It should be appreciated that this
Locate described specific embodiment to be only used to explain the utility model, is not used to limit the utility model.
Referring to Fig. 1, Fig. 1 is the laterally abutted anisotropic unsaturated soil rainfall infiltration demonstration dress of one kind provided by the utility model
Set, as shown, described device include for provide the adjustable rainfall simulation structure (not shown) of varying strength rainfall,
Rainwater-collecting measurement structure (not shown) for loading the loading box 10 of soil sample and being connected to by pipeline with the loading box,
The drawable demarcation plate 11 for loading the soil sample point side of different permeability energy is provided in the loading box 10.
Specifically, the adjustable rainfall simulation structure includes the water feeding tank 2 being placed in first support 1 and institute
State the water pump 3 and the rainfall spray head 5 being connected to by pipeline with the water pump that water feeding tank is connected to by pipeline, the connection water pump
3 with the water adjusting valve 4 for regulating and controlling water flow is provided on the pipeline of rainfall spray head 5.
Further, as shown in Figure 1, the rainfall spray head 5 is fixed in second support 6, the rainfall spray head is located at institute
State the surface of loading box.Preferably, the rainfall spray head is detachably connected with the pipeline by screw thread, different by replacement
The rainfall spray head of flow, different pore size, the various workings environment such as analog Atomized Rain, light rain, moderate rain, heavy rain or heavy rain.
Preferably, the water feeding tank is provided with dyestuff water, when the dyestuff water is equipped with by water pump from the penetrating of rainfall spray head
When the loading box of soil sample, it can be understood by observation soil sample color and intuitively go out the infiltration path in soil sample.
As a wherein embodiment, as Figure 1-Figure 2, the loading box 10 is that the transparent glass of a square holds
Device is provided with scale on the surrounding side wall of the transparent glass container, is provided in the loading box 10 for by different infiltrations
The drawable demarcation plate 11 that the soil sample of permeability energy divides side to load, the loading box bottom is located at the position of drawable demarcation plate two sides
It is provided with several apopores 12.Preferably, the drawable demarcation plate is the rigid plastic sheet that thickness is less than 5mm, described hard
The loading box is simultaneously divided into identical two compartments of volume by plastic plate vertical loading bottom portion；The loading chamber interior wall is also set
It is equipped with the card slot for being positioned to the drawable demarcation plate.It is highly preferred that the loading box bottom is located at drawable point
The position of partition two sides is provided with 3 apopores.
Further, as shown in Fig. 2, the loading box bottom is provided with one layer of full water permeable stone 13, on the permeable stone
It is equipped with wet filter paper 14, by the way that full water permeable stone and wet filter paper is arranged in loading box bottom, loading box can be effectively prevent
The apopore of the loading box bottom is blocked when loading soil sample.
Further, as shown in Figure 1-Figure 3, the 10 outer wall upper end of loading box is additionally provided with several water collection sheets 20, institute
It states several water collection sheets 20 and forms sealing structure 30 around loading box, the sealing structure bottom is provided with leakage hole.Preferably, institute
Stating water collection sheet 20 includes connecting and being formed perpendicular to the first water fender 21 of level ground and with the first water blocking board bottom end
The second flap 22 of 20-60 ° of angle, the second flap 22 is fixed on the outer wall of the loading box, and makes institute
State the outside wall parallel of the first water fender Yu the loading box.In the present embodiment, the sealing structure being made of the water collection sheet
The rainwater that rainfall spray head is sprayed onto outside loading box can be effectively collected, to effectively calculate the water sprayed into inside loading box.
As a wherein embodiment, as shown in Figure 1, the rainwater-collecting measurement structure includes by pipeline and the dress
Carry the graduated cylinder 31 that bottom portion apopore 12 connects and the rainwater collection connecting by pipeline with sealing structure bottom leakage hole
Header 32.It is provided with scale on the outside of the graduated cylinder and rainwater collection header, the rainwater being collected by graduated cylinder and rainwater collection header,
Can with quantitative measurment rainwater completely through the soil body when water percolating capacity.
Based on above-mentioned apparatus, the utility model also provides a kind of laterally abutted anisotropic unsaturated soil rainfall infiltration demonstration side
Method, wherein as shown in figure 4, comprising steps of
S10, drawable demarcation plate two sides load the different soil sample of permeance property respectively in the loading box, when soil sample fills
When being downloaded to flushing at the top of the loading box, the drawable demarcation plate is taken out；
S20, dyestuff water is added in water feeding tank, starts water pump, water transfer valve regulation rainfall density is passed through according to experiment demand；
Under S30, the specific condition of raining of observation, the soil sample storm seepage situation of two kinds of different permeability energy, and pass through soil sample
Color variation observation rain penetration path；
S40, quantitatively record rain infiltration depth according to loading box side wall scale, and by graduated cylinder measure rainwater completely through
Water percolating capacity when soil sample.
Specifically, in the step S10, drawable demarcation plate two sides load permeance property not respectively in loading box
With soil sample, need compaction in layers in loading process, rainwater when water spray avoided directly to flow out from loading box side wall and pass through water outlet
Hole enters in graduated cylinder, leads to the result inaccuracy for measuring soil sample water percolating capacity.Further, in the process of compaction in layers soil sample
In, drawable demarcation plate is raised therewith, when soil sample is finally loaded into flushing at the top of the loading box, then take out institute completely
State drawable demarcation plate.
Further, in the step S20, being added in the water feeding tank has dyestuff water, and the rainfall spray head is located at institute
It states at the top of loading box, when needing to carry out rain infiltration demonstration to the soil sample in the loading box, then starts water pump, according to experiment
Demand can also switch different rainfall modes by replacing rainfall spray head by water transfer valve regulation rainfall density, such as Atomized Rain, small
Rain, moderate rain, heavy rain, heavy rain isotype.
It in the step S30, observes under specific rainfall mode, the soil sample storm seepage feelings of two kinds of different permeability energy
Condition, since the rainwater is dyestuff water, can be changed by soil sample color to observe infiltration road of the rainwater in above-mentioned soil sample
Diameter.
Further, in the step S40, rain infiltration depth is quantitatively recorded according to loading box side wall scale, and
Water percolating capacity of the rainwater completely through soil sample when is measured by graduated cylinder.After the rainwater permeates soil sample completely, it can switch off the pump, and
The final moisture content that the soil body is calculated according to the formula in soil test technique regulation, obtains more accurate measurement result.
In conclusion laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating provided by the utility model includes being used for
The adjustable rainfall simulation structure of varying strength rainfall, the loading box for loading soil sample are provided and pass through pipeline and institute
The rainwater-collecting measurement structure of loading box connection is stated, the apparatus structure is simple, easy to use, can clearly see by the device
It examines rainwater and infiltrates path inside unsaturated soil, and can quantitatively measure the water percolating capacity of unsaturated soil.
It should be understood that the application of the utility model is not limited to above-mentioned citing, those of ordinary skill in the art are come
It says, it can be modified or changed according to the above description, and all these modifications and variations all should belong to the appended power of the utility model
The protection scope that benefit requires.
Claims (9)
1. a kind of laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating, which is characterized in that including different strong for providing
It spends the adjustable rainfall simulation structure of rainfall, the loading box for loading soil sample and is connected by pipeline and the loading box
Logical rainwater-collecting measurement structure, be provided in the loading box for by different permeability can taking out of loading of soil sample point side
From demarcation plate.
2. laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating according to claim 1, which is characterized in that described
Adjustable rainfall simulation structure includes the water feeding tank being sequentially communicated by pipeline, water pump and rainfall spray head, the rainfall spray
Head suspension is in the upper end of the loading box.
3. laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating according to claim 2, which is characterized in that described
The water adjusting valve for regulating and controlling water flow is provided on the pipeline of connection water pump and rainfall spray head.
4. laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating according to claim 1, which is characterized in that described
The position that loading box bottom is located at drawable demarcation plate two sides is provided with several apopores.
5. laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating according to claim 4, which is characterized in that described
It loads box outer wall upper end and is additionally provided with several water collection sheets, several water collection sheets form sealing structure around loading box, described close
Seal structure bottom is provided with leakage hole.
6. laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating according to claim 5, which is characterized in that described
Water collection sheet includes the first water fender perpendicular to level ground and connect with the first water blocking board bottom end and form 20-60 °
The second flap of angle, the second flap are fixed on the outer wall of the loading box.
7. laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating according to claim 5, which is characterized in that described
The transparent glass container that loading box is square is provided with scale on the transparent glass container side wall.
8. laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating according to claim 5, which is characterized in that described
Loading box bottom is provided with one layer of full water permeable stone, is equipped with wet filter paper on the permeable stone.
9. laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating according to claim 5, which is characterized in that described
Rainwater-collecting measurement structure includes the graduated cylinder being connect by pipeline with loading box bottom apopore and by pipeline and institute
State the rainwater collection header of sealing structure bottom leakage hole connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820729606.2U CN208239268U (en) | 2018-05-16 | 2018-05-16 | A kind of laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating |
Applications Claiming Priority (1)
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| CN201820729606.2U CN208239268U (en) | 2018-05-16 | 2018-05-16 | A kind of laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating |
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| CN208239268U true CN208239268U (en) | 2018-12-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801875A (en) * | 2018-05-16 | 2018-11-13 | 东华理工大学 | The laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating of one kind and method |
-
2018
- 2018-05-16 CN CN201820729606.2U patent/CN208239268U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801875A (en) * | 2018-05-16 | 2018-11-13 | 东华理工大学 | The laterally abutted anisotropic unsaturated soil rainfall infiltration apparatus for demonstrating of one kind and method |
| CN108801875B (en) * | 2018-05-16 | 2024-01-23 | 东华理工大学 | Device and method for demonstrating rainfall infiltration of unsaturated soil adjacent to different types transversely |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181214 Termination date: 20190516 |
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| CF01 | Termination of patent right due to non-payment of annual fee |