CN105784564B - Improved double-ring infiltration process visualization test device and method - Google Patents
Improved double-ring infiltration process visualization test device and method Download PDFInfo
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- CN105784564B CN105784564B CN201610176000.6A CN201610176000A CN105784564B CN 105784564 B CN105784564 B CN 105784564B CN 201610176000 A CN201610176000 A CN 201610176000A CN 105784564 B CN105784564 B CN 105784564B
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- arc plate
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- methyl methacrylate
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- 230000008595 infiltration Effects 0.000 title claims abstract description 35
- 238000001764 infiltration Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000012360 testing method Methods 0.000 title claims abstract description 18
- 238000012800 visualization Methods 0.000 title claims description 7
- 239000002689 soil Substances 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 24
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 24
- 125000002619 bicyclic group Chemical group 0.000 claims description 15
- 230000035699 permeability Effects 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229940099259 vaseline Drugs 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 230000002452 interceptive effect Effects 0.000 claims 1
- 238000009736 wetting Methods 0.000 abstract description 5
- 239000011521 glass Substances 0.000 abstract description 4
- 230000000007 visual effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000005273 aeration Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000209202 Bromus secalinus Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
An improved double-ring infiltration process visual test device relates to a soil infiltration process measuring instrument. The device of the invention comprises: the inner arc plate and the outer arc plate, and a horizontal fixed plate, a vertical fixed plate and a vertical connecting plate which are respectively connected with the inner arc plate and the outer arc plate, and a transparent perforated organic glass plate. The invention aims to observe the progress of the wetting front of the double-ring infiltration test in the infiltration process, and solves the problems that the vertical water content distribution test is insufficient and the influence of preferential flow on the infiltration test cannot be considered. The double-ring infiltration device is simple in structure and low in manufacturing cost, and the change of the wetting front and the change of the water content at different positions can be observed by combining the double-ring infiltration device with the organic glass plate.
Description
Technical field
The present invention relates to field soil infiltration characters to test field, more particularly to improves Infiltration mistake in double-ring infiltration instrument
Journey visual test device.
Background technique
Infiltrating is process that the moisture such as rainfall, irrigation, flood enter soil, is an important composition portion of soil water circulation
Point.Soil permeability power affects rainwash and the recharge of ground water.Permeability intensity in situ is one kind in field measuring aeration zone
The important method of soil layer vertical hydraulic conductivity, Insitu permeation test because precision high (compared with laboratory test), it is simple and easy to do and it is economical at
This is low and occupies an important position in the seeking of aeration zone parameter, and commonly uses bicyclic method.Bicyclic method is ensuring that inner ring water infiltration
For it is vertical it is one-dimensional infiltrate, to solve the vertical saturation permeability coefficient of soil layer.Bicyclic is two concentric loops, inner loop control experiment
Area, outer ring guarantee to infilter under the solution of inner ring is vertical and reduce side seepage.
Current bicyclic method is mainly to monitor Infiltration to infiltrate time, average infiltration rate and infiltration capacity into ground
Deng.
Field soil permeability intensity at present, has not been able to preferably while measuring infiltration capacity, soil each section moisture content and
Its a whole set of experimental rig changed.
Field soil permeability intensity at present fails the traveling process for observing wetting front.
Field soil permeability intensity at present can not eliminate influence of the preferential stream to permeability intensity.
Summary of the invention
The present invention cannot measure infiltration capacity, soil to solve the above-mentioned current field soil permeability intensity mentioned simultaneously
Each section moisture content and its deficiency of variation propose a kind of improvement double-ring infiltration process visualization experimental rig, can be simultaneously
Measure infiltration capacity, soil each section moisture content and its variation.It is another object of the present invention to can be realized field soil
The traveling process that wetting front is observed in permeability intensity eliminates influence of the preferential stream to permeability intensity.
To achieve the goals above, the present invention provides a kind of improvement double-ring infiltration process visualization experimental rig, the dresses
Setting includes: inner arc plate and outer arc plate, and the horizontal fixed plate that is connect respectively with outer arc plate and inner arc plate and vertical fixed plate with
And vertical connecting plates, transparent perforation poly (methyl methacrylate) plate, the inner arc plate and outer arc plate are by horizontal fixed plate and vertical fixed plate
It is welded and fixed, the outer arc plate and inner arc board ends are welded by vertical connecting plates, form improved double-ring infiltration device, described
Vertical connecting plates lower edge connect transparent perforation poly (methyl methacrylate) plate and sealing, so that transparent perforation poly (methyl methacrylate) plate is close to observe and is cheated side
Wall carries out permeability intensity.
The inner arc plate, outer arc plate, vertical fixed plate and vertical connecting plates lower edge are set as facilitating access for the saw of the soil body
Dentation.
The bicyclic inner ring and outer rings bottom of the improvement is uniformly laid with iron wire strainer.
The vertical connecting plates are sealed with lower transparent perforation poly (methyl methacrylate) plate with mackintosh.
The transparent perforation poly (methyl methacrylate) plate needs to be arranged the number of holes according to test, and upper lower opening should be staggered a spacing
From, prevent test in interfere between each other.
The transparent perforation poly (methyl methacrylate) plate and improved bicyclic interior survey are uniformly smeared with soil contact position with vaseline,
Prevent occurring influence of the preferential stream to infiltrating in test.
The transparent perforation poly (methyl methacrylate) plate and observation hole needs bracket to do supporting, in order to fix perforation poly (methyl methacrylate) plate
It collapses with preventing observation from cheating.
Advantages of the present invention is as described below:
By improving bicyclic shape, it is allowed to connect with perforation transparent glass organic plates, in conjunction with soil water measuring instrument, not only
It is capable of measuring and infiltrates section soil each section moisture content, moreover it is possible to observe the traveling process of wetting front.
It can observe whether outer ring in improved bicyclic device plays the role of control survey infiltration through poly (methyl methacrylate) plate.
Detailed description of the invention
Fig. 1 is the overall structure diagram of apparatus of the present invention；
Fig. 2 is the horizontal fixed plate top view of improved double-ring infiltration device；
Fig. 3 is the vertical fixed plate top view of improved double-ring infiltration device.
Specific embodiment
Specific structure and embodiment of the invention are further explained with reference to the accompanying drawing.Following embodiment is for saying
The bright present invention, but cannot be used to limit practical range of the invention.
Embodiment:
The main structure of the present embodiment includes inner arc plate 1, outer arc plate 2, vertical fixed plate 3, horizontal fixed plate 4, connects vertically
Fishplate bar 5, transparent perforation poly (methyl methacrylate) plate 6；Inner arc plate, outer arc plate, vertical fixed plate, horizontal fixed plate and vertical connecting plates are
Metal material；Inner arc plate radius 50cm, outer arc plate radius 70cm, equal 270 ° of central angle, Gao Junwei 40cm；Vertical fixed plate is long
20cm, high 10cm；Horizontal fixed plate and the wide 7cm in outer arc plate junction, with the wide 5cm in inner arc plate junction, long 20cm；Vertical connection
Plate long 121cm, high 40cm；Transparent perforation poly (methyl methacrylate) plate long 120cm, high 100cm；After observing that infiltrating bicyclic strike buries
Following water infiltration process in ring, the present invention provides a kind of improvement double-ring infiltration process visualization experimental rigs；The dress
It sets and is made of improved double-ring infiltration device and the perforation poly (methyl methacrylate) plate that can be had an X-rayed；Improved double-ring infiltration device is placed in
The depth of test requirements document places transparent perforation poly (methyl methacrylate) plate in observation and cheats side wall, make on poly (methyl methacrylate) plate edge with connect vertically
Plate connection sealing, for carrying out the Visualization of water infiltration process, observation ring type infiltrates the moisture fortune of pit slot section
Dynamic process.
Apparatus of the present invention specific implementation process is as follows:
1. by inner arc plate and outer arc plate, and the horizontal fixed plate being connect respectively with inner arc plate and outer arc plate and vertical fixation
Plate and vertical connecting plates, transparent perforation poly (methyl methacrylate) plate weld together, and form improved double-ring infiltration device；
2. equal with soil contact position vaseline by being surveyed in transparent perforation poly (methyl methacrylate) plate and improved double-ring infiltration device
Even smearing；
3. improved bicyclic device is slowly pressed into depth needed for permeability intensity with jack；
4. being laid with iron wire strainer, then the plastic cloth that tiles in bicyclic bottom respectively；
5. the observation hole of test requirements document is dug on the outside of vertical connecting plates, it will be with section at the transparent organic contact glass sheet of perforation
Shaving makes poly (methyl methacrylate) plate abutting seepage pit side wall of perforating, and makes on transparent perforation poly (methyl methacrylate) plate under abutting vertical connecting plates
Edge is sealed the joint with mackintosh；
6. drimeter is inserted into corresponding hole, sealed with sealing adhesive plaster；
7. being respectively bicyclic water supply with two Markov bottles, reach test water level, be consistent inner and outer ring water level, until entering
Until infiltration reaches steady seepage；
8. being infiltrated the time during infiltrating beginning with stopwatch record, while the SEA LEVEL VARIATION of Markov bottle is recorded, soil moisture is surveyed
The variation for determining instrument record soil moisture, is obtained by calculation the infiltrating performance of soil.
Claims (1)
1. a kind of double-ring infiltration process visualization experimental rig, which is characterized in that the device includes: inner arc plate and outer arc plate, with
And the horizontal fixed plate being connect respectively with inner arc plate and outer arc plate and vertical fixed plate, transparent perforation poly (methyl methacrylate) plate it is described
Inner arc plate is connected with outer arc plate by vertical connecting plates, inner arc plate before testing, outer arc plate, horizontal fixed plate, vertical fixed plate, vertically
Connecting plate is welded to form improved double-ring infiltration device, and lower part connects transparent perforation poly (methyl methacrylate) plate and carries out permeability intensity；
The inner arc plate (1) is fixedly connected by several horizontal fixed plates (4) with vertical fixed plate (3) with outer arc plate (2),
It can prevent from shifting when improving bicyclic merging soil when test, the position of horizontal fixed plate (4) and vertical fixed plate (3) is equal
It is even to be distributed at 30 ° or 45 ° of inner arc plate (1) and outer arc plate (2) central angle difference, vertical fixed plate (3) bottom and inner arc plate
(1) concordant with outer arc plate (2) bottom；
The inner arc plate (1), outer arc plate (2), vertical fixed plate (3) and vertical connecting plates (5) lower edge be disposed as convenient for into
Enter the zigzag of the soil body；
The bicyclic inner ring and outer rings bottom of the improvement is uniformly laid with iron wire strainer, when preventing from quickly detaching plastic cloth, water body
It washes away surface infrastructure caused by earth's surface and breaks ring；
The vertical connecting plates (4) are sealed with lower transparent perforation poly (methyl methacrylate) plate (6) with mackintosh；
The transparent perforation poly (methyl methacrylate) plate (6) needs to be arranged the number of holes according to test, and upper lower opening should be staggered certain distance,
It prevents from interfering between each other in test；
The transparent perforation poly (methyl methacrylate) plate (6) and bicyclic interior survey are smoothened with soil contact position with vaseline, in order to prevent water
Stream is infiltrated along wall short circuit；
The transparent perforation poly (methyl methacrylate) plate (6) needs bracket to do supporting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610176000.6A CN105784564B (en) | 2016-03-24 | 2016-03-24 | Improved double-ring infiltration process visualization test device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610176000.6A CN105784564B (en) | 2016-03-24 | 2016-03-24 | Improved double-ring infiltration process visualization test device and method |
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| Publication Number | Publication Date |
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| CN105784564A CN105784564A (en) | 2016-07-20 |
| CN105784564B true CN105784564B (en) | 2019-04-19 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340215A (en) * | 2016-12-26 | 2017-11-10 | 江苏苏博特新材料股份有限公司 | A kind of test device and method of testing for testing pervious concrete pavement coefficient of permeability |
| AU2018358089A1 (en) * | 2017-11-06 | 2020-05-28 | Grains Research And Development Corporation (Grdc) | Indicating soil additives for improving soil water infiltration and/or modulating soil water repellence |
| CN108982322A (en) * | 2018-07-20 | 2018-12-11 | 天津绿茵景观生态建设股份有限公司 | A kind of soil infiltration capability measurement device |
| CN108918391B (en) * | 2018-08-17 | 2021-05-28 | 北京建筑大学 | Pavement permeability measuring device and method |
| CN112730189B (en) * | 2020-12-10 | 2021-12-17 | 湖南大学 | Sponge city facility water penetration and storage characteristic double-ring synchronous permeameter and detection method |
| CN113295590A (en) * | 2021-04-29 | 2021-08-24 | 兰州大学 | Improved double-ring penetration test method for ensuring vertical infiltration of inner ring moisture |
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Inventor after: Wu Guizhi Inventor after: Lu Chenggang Inventor after: Feng Zengshuai Inventor after: Yang Fan Inventor before: Feng Zengshuai Inventor before: Wu Guizhi Inventor before: Yang Fan Inventor before: Lu Chenggang |
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