CN105784564A - Improved double-ring infiltration process visual test device and test method thereof - Google Patents
Improved double-ring infiltration process visual test device and test method thereof Download PDFInfo
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- CN105784564A CN105784564A CN201610176000.6A CN201610176000A CN105784564A CN 105784564 A CN105784564 A CN 105784564A CN 201610176000 A CN201610176000 A CN 201610176000A CN 105784564 A CN105784564 A CN 105784564A
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- 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
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- 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
Abstract
The invention relates to a soil infiltration process measuring instrument, in particular to an improved double-ring infiltration process visual test device. The device comprises an inner arc plate and an outer arc plate, a horizontal fixed plate and a vertical fixed plate which are respectively connected with the inner arc plate and the outer arc plate, a vertical connecting plate, and a transparent perforated organic glass plate. In order to observe an advancing process of a wetting front in an infiltration process of a double-ring infiltration test, the device solves the problems that a vertical moisture content distribution test has defects and the influence of preferential flow on the infiltration test is not considered. The improved double-ring infiltration process visual test device is simple in structure and low in manufacturing cost; a double-ring infiltration device is combined with the organic glass plate, so that the change of the wetting front can be observed, and the change of moisture contents of different positions can be measured.
Description
Technical field
The present invention relates to field soil infiltration character test field, particularly relate to Infiltration process visualization assay device in improvement double-ring infiltration instrument.
Background technology
Infiltrating is the moisture such as rainfall, irrigation, the flood process that enters soil, is an important component part of soil water circulation.Soil permeability power affects rainwash and the recharge of ground water.Original position permeability intensity is a kind of important method measuring soil horizon in aerated zone vertical hydraulic conductivity in the wild, Insitu permeation test because of precision high (relatively laboratory test), simple and easy to do and Financial cost is low and occupies critical role in the asking for of aeration zone parameter, conventional dicyclo method.Dicyclo method is ensuring that internal ring water infiltration is vertical one-dimensional infiltrates, thus solving the vertical saturation permeability coefficient of soil layer.Dicyclo is two donuts, internal ring Control release area, and outer shroud ensures that the solution of internal ring infilters and reduces side seepage under vertical.
Current dicyclo method mainly monitoring Infiltration is to the time of infiltrating in ground, average infiltration rate and infiltration capacity etc..
Current field soil permeability intensity, can not measure infiltration capacity, a whole set of assay device of soil each several part moisture and change thereof preferably simultaneously.
Current field soil permeability intensity, fails to observe the traveling process of wetting front.
Current field soil permeability intensity, it is impossible to eliminate the impact preferentially flowed permeability intensity.
Summary of the invention
The present invention is to solve that the above-mentioned current field soil permeability intensity mentioned can not measure infiltration capacity simultaneously, the deficiency of soil each several part moisture and change thereof, propose one and improve double-ring infiltration process visualization assay device, infiltration capacity, soil each several part moisture and change thereof can be measured simultaneously.Further object is that the traveling process being capable of observing wetting front in field soil permeability intensity, eliminate the impact preferentially flowed permeability intensity.
To achieve these goals, the invention provides a kind of improvement double-ring infiltration process visualization assay device, this device includes: inner arc plate and outer arc plate, and the horizontal fixed plate being connected with outer arc plate and inner arc plate respectively and vertically fixing plate and vertically connecting plate, transparent perforation poly (methyl methacrylate) plate, described inner arc plate and outer arc plate are welded and fixed by horizontal fixed plate and vertical fixing plate, described outer arc plate and inner arc plate two ends are welded by vertical connecting plate, the double-ring infiltration device that composition improves, along connecting transparent perforation poly (methyl methacrylate) plate and sealing under described vertical connecting plate, transparent perforation poly (methyl methacrylate) plate is made to be close to observation hole sidewall, carry out permeability intensity.
Described inner arc plate, outer arc plate, vertically fix under plate and vertical connecting plate along being set to facilitate access for the zigzag of the soil body.
The described internal ring improving dicyclo and outer shroud bottom even lay iron wire filter screen.
Described vertical connecting plate seals with lower transparent perforation poly (methyl methacrylate) plate mackintosh.
Described transparent perforation poly (methyl methacrylate) plate needs to arrange the number of holes according to test, and upper lower opening should stagger certain distance, it is prevented that disturbs each other in test.
Survey and soil contact position vaseline uniform application in described transparent perforation poly (methyl methacrylate) plate and the dicyclo of improvement, it is prevented that test occurs preferentially flow the impact infiltrated.
Described transparent perforation poly (methyl methacrylate) plate and observation hole need support to do supporting, in order to fix perforation poly (methyl methacrylate) plate and prevent observation hole from caving in.
Advantages of the present invention is as described below:
By improving dicyclo shape, so as to is connected with perforation clear glass organic plates, in conjunction with soil water measuring instrument, can not only measure and infiltrate section soil each several part moisture, moreover it is possible to the traveling process of observation wetting front.
Whether the dicyclo device outer-loop that can observe improvement through poly (methyl methacrylate) plate plays the effect that control survey is oozed.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of apparatus of the present invention；
Fig. 2 is the horizontal fixed plate top view of the double-ring infiltration device improved；
Fig. 3 is the vertically fixing plate top view of the double-ring infiltration device improved.
Detailed description of the invention
It is further explained below in conjunction with the accompanying drawing concrete structure to the present invention and embodiment.Following example are used for illustrating the present invention, but can not be used for limiting the practical range of the present invention.
Embodiment:
The agent structure of the present embodiment includes inner arc plate 1, outer arc plate 2, vertically fixing plate 3, horizontal fixed plate 4, vertical connecting plate 5, transparent perforation poly (methyl methacrylate) plate 6；Inner arc plate, outer arc plate, vertically fix plate, horizontal fixed plate and vertically connecting plate be metal material；Inner arc plate radius 50cm, outer arc plate radius 70cm, equal 270 ° of central angle, height is 40cm；The vertically fixing long 20cm of plate, high 10cm；Horizontal fixed plate and outer arc plate junction width 7cm, with inner arc plate junction width 5cm, long 20cm；The long 121cm of vertical connecting plate, high 40cm；The transparent long 120cm of perforation poly (methyl methacrylate) plate, high 100cm；For observe infiltrate dicyclo hit bury after following water infiltration process in ring, the invention provides and a kind of improve double-ring infiltration process visualization assay device；This device is made up of the double-ring infiltration device improved and the perforation poly (methyl methacrylate) plate that can have an X-rayed；The double-ring infiltration device of improvement is inserted the degree of depth of test requirements document, place transparent perforation poly (methyl methacrylate) plate and observe hole sidewall, make on poly (methyl methacrylate) plate along being connected sealing with vertical connecting plate, for carrying out the Visualization of water infiltration process, observe ring type and infiltrate the moisture movement process of pit section.
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 connected with inner arc plate and outer arc plate respectively and vertically fixing plate and vertically connecting plate, transparent perforation poly (methyl methacrylate) plate welds together, the double-ring infiltration device that composition improves；
2. will survey and soil contact position vaseline uniform application in the double-ring infiltration device of transparent perforation poly (methyl methacrylate) plate and improvement；
3. the dicyclo device jack of improvement is slowly pressed into permeability intensity desired depth；
4. bottom dicyclo, lay iron wire filter screen then the Polypropylence Sheet that tiles respectively；
5. outside vertical connecting plate, dig the observation hole of test requirements document, will with transparent perforation poly (methyl methacrylate) plate contact position section shaving, make perforation poly (methyl methacrylate) plate be close to seepage pit sidewall, make on transparent perforation poly (methyl methacrylate) plate along being close to edge under vertical connecting plate, be tightly connected place with mackintosh；
6. drimeter is inserted in corresponding hole, seal with sealing adhesive plaster；
7. supply water with two geneva bottle respectively dicyclos, reach test water level, make inner and outer ring water level keep consistent, till infiltrating and reaching steady seepage；
8. infiltrating and infiltrate the time with stopwatch record during starting, record the SEA LEVEL VARIATION of geneva bottle simultaneously, the change of soil nmoisture content analyser record soil moisture, by calculating the performance of infiltrating obtaining soil.
Claims (8)
1. one kind is improved double-ring infiltration process visualization assay device, it is characterized in that, this device includes: inner arc plate and outer arc plate, and the horizontal fixed plate being connected with inner arc plate and outer arc plate respectively and vertical fixing plate, transparent perforation poly (methyl methacrylate) plate, described inner arc plate and outer arc plate are connected by vertical connecting plate, inner arc plate before test, outer arc plate, horizontal fixed plate, vertically fixing plate, vertical connecting plate is all welded to form the double-ring infiltration device of improvement, and bottom connects transparent perforation poly (methyl methacrylate) plate and carries out permeability intensity.
2. a kind of improvement double-ring infiltration process visualization assay device according to claim 1, it is characterized in that, described inner arc plate (1) and outer arc plate (2) are by several horizontal fixed plate (4) and the vertically fixing connection of fixing plate (3), improve when dicyclo inserts soil when being prevented from testing and offset, the position of horizontal fixed plate (4) and vertically fixing plate (3) is evenly distributed on inner arc plate (1) and outer arc plate (2) central angle 30 ° or 45 ° places respectively, vertically fixing plate (3) bottom is concordant with inner arc plate (1) and outer arc plate (2) bottom.
3. a kind of improvement double-ring infiltration process visualization assay device according to claim 2, it is characterized in that: described inner arc plate (1), outer arc plate (2), vertically fixes under plate (3) and vertical connecting plate (5) along the zigzag being disposed as facilitating access for the soil body.
4. a kind of improvement double-ring infiltration process visualization assay device according to claim 3, it is characterized in that: the described internal ring improving dicyclo and outer shroud bottom even lay iron wire filter screen, when preventing quickly detaching Polypropylence Sheet, water body washes away the broken ring of surface infrastructure that earth's surface causes.
5. a kind of improvement double-ring infiltration process visualization assay device according to claim 4, it is characterised in that: described vertical connecting plate (4) seals with mackintosh with lower transparent perforation poly (methyl methacrylate) plate (6).
6. a kind of improvement double-ring infiltration process visualization assay device according to claim 5, it is characterized in that: described transparent perforation poly (methyl methacrylate) plate (6) needs to arrange the number of holes according to test, upper lower opening should stagger certain distance, it is prevented that disturbs each other in test.
7. a kind of improvement double-ring infiltration process visualization assay device according to claim 6, it is characterized in that: survey in described transparent perforation poly (methyl methacrylate) plate (6) and dicyclo and smoothen with soil contact position vaseline, in order to prevent current from infiltrating along wall short circuit.
8. a kind of improvement double-ring infiltration process visualization assay device according to claim 7, it is characterised in that: described transparent perforation poly (methyl methacrylate) plate (6) needs support to do supporting, in order to prevent observation hole from caving in.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610176000.6A CN105784564B (en) | 2016-03-24 | 2016-03-24 | A kind of improvement double-ring infiltration process visualization experimental rig and method |
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| CN201610176000.6A CN105784564B (en) | 2016-03-24 | 2016-03-24 | A kind of improvement double-ring infiltration process visualization experimental rig and method |
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| CN105784564B CN105784564B (en) | 2019-04-19 |
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Cited By (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 |
| CN108918391A (en) * | 2018-08-17 | 2018-11-30 | 北京建筑大学 | One kind is mated formation permeability measurement apparatus and measurement method |
| 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 |
| CN112730189A (en) * | 2020-12-10 | 2021-04-30 | 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 |
| US11307130B2 (en) * | 2017-11-06 | 2022-04-19 | Basf Se | Indicating soil additives for improving soil water infiltration and/or modulating soil water repellence |
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Cited By (7)
| 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 |
| US11307130B2 (en) * | 2017-11-06 | 2022-04-19 | Basf Se | 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 |
| CN108918391A (en) * | 2018-08-17 | 2018-11-30 | 北京建筑大学 | One kind is mated formation permeability measurement apparatus and measurement method |
| CN108918391B (en) * | 2018-08-17 | 2021-05-28 | 北京建筑大学 | Pavement permeability measuring device and method |
| CN112730189A (en) * | 2020-12-10 | 2021-04-30 | 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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