CN108007844A - A kind of road surface water-permeable brick permeability coefficient tester - Google Patents
A kind of road surface water-permeable brick permeability coefficient tester Download PDFInfo
- Publication number
- CN108007844A CN108007844A CN201711406695.3A CN201711406695A CN108007844A CN 108007844 A CN108007844 A CN 108007844A CN 201711406695 A CN201711406695 A CN 201711406695A CN 108007844 A CN108007844 A CN 108007844A
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- water
- permeable brick
- framework
- road surface
- pipeline
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- 239000011449 brick Substances 0.000 title claims abstract description 74
- 230000035699 permeability Effects 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- 230000008595 infiltration Effects 0.000 claims description 16
- 238000001764 infiltration Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 230000003204 osmotic effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004567 concrete Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011707 mineral Substances 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
- 238000012806 monitoring device Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011380 pervious concrete Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010257 thawing Methods 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
Abstract
The invention discloses a kind of road surface water-permeable brick permeability coefficient tester, it solves the problems, such as that water-permeable brick osmosis system is complicated in the prior art, has the high beneficial effect of testing efficiency, its scheme is as follows：A kind of road surface water-permeable brick permeability coefficient tester, including framework, framework bottom are equipped with the opening for being used for containing water-permeable brick, are connected at the top of framework with transparent or semitransparent pipeline, and the hollow setting of pipeline top or top set dismountable lid.
Description
Technical field
The present invention relates to sponge city field, more particularly to a kind of road surface water-permeable brick permeability coefficient tester.
Background technology
Porous pavement is also referred to as porous pavements, including permeable brick paving and pervious concrete pavement etc., in coarse aggregate skeleton
Inside has substantial amounts of connectivity hole to cause road surface to have good water permeability, can quickly allow substantial amounts of rainwater to penetrate into ground
Under, so as to effectively reduce or eliminate urban storm flood.However, contain in the rainwash produced due to rainfall a large amount of
Suspended particulate (such as silt particle, chip), these mineral or organic fine grained can constantly enter seepy material hole with current, cause
Pore plugging, seepy material and basic unit's permeance property constantly reduce, and cause porous pavement to be difficult to play drain function, final to develop
Into non-porous pavement, service life shortens, and increases the possibility that urban flooding and freezing-thawing disaster occur.In practice, mostly
Its permeable energy is assessed using the change to a certain piece of water-permeable pavement continuous monitoring (usually more than several years) its coefficient of permeability
Power, and the usual volume of existing apparatus is big, using complex steps, before use, need to fill brickwork joint leak stopping putty, it is specific to survey
It is ineffective to measure the infiltration rate of one piece of water-permeable brick, and is set on road surface, usually influences the normal pass of pedestrian or vehicle, this
Outside, existing monitoring device is chiefly used in interior, and installing and dismounting process is complicated, time-consuming.
It would therefore be desirable to have a kind of instrument for monitoring the change of porous pavement infiltration coefficient, and long-term original position can be carried out with road pavement
Monitoring.
The content of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of road surface water-permeable brick permeability coefficient tester, the survey
Examination instrument is simple in structure, convenient and efficient can realize determining for road pavement infiltration coefficient.
A kind of concrete scheme of road surface water-permeable brick permeability coefficient tester is as follows：
A kind of road surface water-permeable brick permeability coefficient tester, including：
Framework, framework bottom are equipped with the opening for being used for containing water-permeable brick, are connected at the top of framework with transparent or semitransparent pipeline,
The hollow setting of pipeline top or top set dismountable lid, facilitate the injection of rainwater or water, and pipeline L-shaped can be set, and
It is hollow to facilitate injection water source at the top of pipeline horizontal segment.
Alternative plan provided by the invention is：
A kind of road surface water-permeable brick permeability coefficient tester, including：
Framework, framework bottom, which is equipped with, is used to containing the opening of water-permeable brick, at the top of framework by transparent or semitransparent pipeline with
Water tank connects, and the bottom of storage tank sets valve, when needing to be built into water to pipeline, opens valve, carries out water filling.
In the two schemes, framework contains water-permeable brick and sets, by determining that pipeline memory in setting time drops under water
Highly, you can determine the infiltration coefficient of water-permeable brick.
Further, the height of water after setting time is drawn for convenience, and the pipeline, which is equipped with, to be used to check water in pipeline
The graduation mark of height.
Further, the framework opening shape is identical with the shape of the water-permeable brick, and framework edge of opening is set
For rubber ring to be bonded with water-permeable brick, it is to improve leakproofness to flowing down by water-permeable brick to ensure water.
Further, the framework opening size is more than or equal to the size of water-permeable brick, it is preferable that is equal to.
Further, annular mouth is set at the top of the framework, and the bottom of the pipeline is arranged in annular mouth, in order to ensure to seal
Performance, annular mouth size is set more than the bottom of the pipeline, and further includes a retainer ring, after pipeline is placed on annular mouth, by retainer ring
It is placed on the outside of annular mouth and sets.
Alternatively, being threaded on the inside of annular mouth, pipeline sets external screw thread, the two realizes close connection by screw thread.
Further, size gradually increases the framework from the top to the bottom, and lateral surface is the conical surface.
Further, a circle sealing ring is set on the inside of the annular mouth.
Further, in order to simulate actual condition, infiltration selects rainwater with wet concentration, larger miscellaneous because that may contain in rainwater
Matter, therefore at least one layer of filter screen is set in the pipeline, so when research impurity influences permeance property, remove filtering
Net, it is necessary to when, then filter screen is set, pipeline includes two sections, and filter screen is arranged between two sections.
For overcome the deficiencies in the prior art, present invention also offers a kind of method of definite water-permeable brick infiltration coefficient, adopt
It is as follows using step with a kind of road surface water-permeable brick permeability coefficient tester：
1) a kind of road surface water-permeable brick permeability coefficient tester is contained water-permeable brick to set；
2) rainwater or water of setting volume are injected into pipeline and framework, water level is higher than initial rainwater or the height h of water1,
cm；
3) when water level decreasing to specified initial water level h1When, start timing, after setting time t, record rainwater in pipeline
Or the height h of water2, cm；
4) osmotic coefficient k of water-permeable brick is determined by formula (1)s：
Wherein, ksIt is the infiltration coefficient of water-permeable brick, cm/s；α is the area of framework top cross-section, cm2；A is that framework bottom is cut
The area in face, cm2；L is the thickness of water-permeable brick, cm；T is the time of seepage flow, s.
Compared with prior art, the beneficial effects of the invention are as follows：
1) overall structure of the present invention is simple, can quickly realize installation and dismounting, by measuring height change, is by formula
The infiltration coefficient of water-permeable brick can be obtained, measurement efficiency is high.
2) setting of the invention by framework, effectively contains water-permeable brick, and the conveniently connection with pipeline.
Brief description of the drawings
The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are used to explain the application, do not form the improper restriction to the application.
Fig. 1 is apparatus of the present invention top view；
Fig. 2 is framework side view of the present invention；
Fig. 3 is the schematic diagram of single unit system of the present invention；
Wherein：1. pipeline, 2. openings, 3. annular mouths.
Embodiment
It is noted that described further below is all illustrative, it is intended to provides further instruction to the application.It is unless another
Indicate, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
Embodiment 1
As background technology is introduced, the deficiencies in the prior art, in order to solve technical problem as above, this Shen
It please propose a kind of road surface water-permeable brick permeability coefficient tester.
In a kind of typical embodiment of the application, as shown in Figure 1, a kind of road surface water-permeable brick permeability coefficient tester,
Including framework, framework bottom is equipped with the opening 2 for being used for containing water-permeable brick, is connected at the top of framework with transparent or semitransparent pipeline 1, manages
The hollow setting in the top of road 1 or top set dismountable lid, facilitate the injection of rainwater or water, alternatively, pipeline L-shaped can be set
Put, and it is hollow to facilitate injection water source at the top of pipeline horizontal segment.
Framework contains water-permeable brick and sets, by determining 1 memory of pipeline drops under water in setting time height, you can determines
The infiltration coefficient of water-permeable brick.
The height of water after setting time is drawn for convenience, and pipeline 1 is equipped with the scale for being used for checking water height in pipeline 1
Line.
2 shape of framework opening is identical with the shape of water-permeable brick, can be cuboid shape or cylindrical shape, and frame
2 edge of body opening sets rubber ring to be bonded with water-permeable brick, and it is to improve leakproofness to flowing down by water-permeable brick to ensure water, in addition,
One circle rubber ring is set in framework opening inner side, to improve the leakproofness of framework and water-permeable brick, such tester can be used for list
Block brick, can be used for the road surface of outdoor.
2 size of framework opening is more than or equal to the size of water-permeable brick, it is preferable that is equal to.
Annular mouth 3 is set at the top of framework, 1 bottom of pipeline is arranged in annular mouth 3, in order to ensure sealing performance, annular
3 sizes of mouth are set more than 1 bottom of pipeline.The inner side of annular mouth 3 sets a circle sealing ring.
Size gradually increases framework from the top to the bottom, and lateral surface is the conical surface.
In order to simulate actual condition, infiltration selects rainwater with wet concentration, because larger impurity may be contained in rainwater, therefore it is described
At least one layer of filter screen is set in pipeline.
Embodiment 2
A kind of road surface water-permeable brick permeability coefficient tester, including：
Framework, framework bottom, which is equipped with, is used to containing the opening of water-permeable brick, at the top of framework by transparent or semitransparent pipeline with
Water tank connects, and the bottom of storage tank sets valve, when needing to inject water into pipeline, opens valve, carries out water filling.
Annular mouth is set at the top of the framework, the bottom of the pipeline is arranged in annular mouth, in order to ensure sealing performance, annular
Mouth size is set more than the bottom of the pipeline, and further includes a retainer ring, after pipeline is placed on annular mouth, by Fixing shrink ring in annular mouth
Outside is set.Size gradually increases the framework from the top to the bottom, and lateral surface is the conical surface.
Alternatively, being threaded on the inside of annular mouth, pipeline sets external screw thread, the two realizes close connection by screw thread.
Embodiment 3
For overcome the deficiencies in the prior art, present invention also offers a kind of method of definite water-permeable brick infiltration coefficient, adopt
A kind of road surface water-permeable brick permeability coefficient tester described in embodiment 1 or embodiment 2, it is as follows using step：
1) a kind of road surface water-permeable brick permeability coefficient tester is contained water-permeable brick to set；
2) rainwater or water of setting volume are injected into pipeline and framework, water level is higher than initial rainwater or the height h of water1,
cm；
3) when water level decreasing to specified initial water level h1When, start timing, after setting time t, record rainwater in pipeline
Or the height h of water2, cm；
4) osmotic coefficient k of water-permeable brick is determined by formula (1)s：
Wherein, ksIt is the infiltration coefficient of water-permeable brick, cm/s；α is the area of framework top cross-section, cm2；A is that framework bottom is cut
The area in face, cm2；L is the thickness of water-permeable brick, cm；T is the time of seepage flow, s.
The formulation process is as follows：
First according to Darcy formula
V=ki
Wherein v is flow velocity, and k is infiltration coefficient, and i is hydraulic slope
Obtain the seepage discharge dQ that the dt times flow through water-permeable brick
Wherein h is the head at dt moment, and L is the thickness of water-permeable brick, and A is the sectional area of water-permeable brick.
According to flow equal principle, that is, the flow of water-permeable brick is flowed out equal to the seepage discharge in pipe, can be obtained：
Wherein a is the area of the circular cross-section of glass tube, and dh is the height of water level decreasing in dt inner tubes.
Above formula is deformed, the left side of formula integrates the time from 0 to t, and the right of formula is to head from h1To h2Integration, obtains
The formula of infiltration coefficient is as follows：
The foregoing is merely the preferred embodiment of the application, the application is not limited to, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Claims (10)
- A kind of 1. road surface water-permeable brick permeability coefficient tester, it is characterised in that including：Framework, framework bottom are equipped with the opening for being used for containing water-permeable brick, are connected at the top of framework with transparent or semitransparent pipeline, pipeline The hollow setting in top or top set dismountable lid.
- A kind of 2. road surface water-permeable brick permeability coefficient tester, it is characterised in that including：Framework, framework bottom are equipped with the opening for being used for containing water-permeable brick, pass through transparent or semitransparent pipeline and water storage at the top of framework Case connects.
- A kind of 3. road surface water-permeable brick permeability coefficient tester according to claim 1 or 2, it is characterised in that the pipeline Equipped with the graduation mark for checking water height in pipeline.
- A kind of 4. road surface water-permeable brick permeability coefficient tester according to claim 1 or 2, it is characterised in that the framework Opening shape is identical with the shape of the water-permeable brick.
- A kind of 5. road surface water-permeable brick permeability coefficient tester according to claim 1 or 2, it is characterised in that the framework Opening size is more than or equal to the size of water-permeable brick.
- A kind of 6. road surface water-permeable brick permeability coefficient tester according to claim 1 or 2, it is characterised in that the framework Top sets annular mouth, and the bottom of the pipeline is arranged in annular mouth.
- A kind of 7. road surface water-permeable brick permeability coefficient tester according to claim 1 or 2, it is characterised in that the framework Size gradually increases from the top to the bottom.
- 8. a kind of road surface water-permeable brick permeability coefficient tester according to claim 6, it is characterised in that in the annular mouth Side sets a circle sealing ring.
- A kind of 9. road surface water-permeable brick permeability coefficient tester according to claim 1 or 2, it is characterised in that the pipeline It is interior that at least one layer of filter screen is set.
- A kind of 10. method of definite water-permeable brick infiltration coefficient, it is characterised in that using any one of claim 1-9 A kind of road surface water-permeable brick permeability coefficient tester, it is as follows using step：1) a kind of road surface water-permeable brick permeability coefficient tester is contained water-permeable brick to set；2) rainwater or water of setting volume are injected into pipeline and framework, water level is higher than initial rainwater or the height h of water1, cm；3) when water level decreasing to specified initial water level h1When, start timing, after setting time t, record rainwater or water in pipeline Height h2, cm；4) osmotic coefficient k of water-permeable brick is determined by formula (1)s：<mrow> <msub> <mi>k</mi> <mi>s</mi> </msub> <mo>=</mo> <mfrac> <mrow> <mi>a</mi> <mi>l</mi> </mrow> <mrow> <mi>A</mi> <mi>t</mi> </mrow> </mfrac> <mi>l</mi> <mi>n</mi> <mrow> <mo>(</mo> <mfrac> <msub> <mi>h</mi> <mn>1</mn> </msub> <msub> <mi>h</mi> <mn>2</mn> </msub> </mfrac> <mo>)</mo> </mrow> </mrow>Wherein, ksIt is the infiltration coefficient of water-permeable brick, cm/s；A is the area of framework top cross-section, cm2；A is framework bottom section Area, cm2；L is the thickness of water-permeable brick, cm；T is the time of seepage flow, s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711406695.3A CN108007844A (en) | 2017-12-22 | 2017-12-22 | A kind of road surface water-permeable brick permeability coefficient tester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711406695.3A CN108007844A (en) | 2017-12-22 | 2017-12-22 | A kind of road surface water-permeable brick permeability coefficient tester |
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| Publication Number | Publication Date |
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| CN108007844A true CN108007844A (en) | 2018-05-08 |
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| CN201711406695.3A Pending CN108007844A (en) | 2017-12-22 | 2017-12-22 | A kind of road surface water-permeable brick permeability coefficient tester |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342290A (en) * | 2018-11-09 | 2019-02-15 | 北京建筑大学 | A kind of permeable pavement apparatus for measuring permeability coefficient |
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| US2310111A (en) * | 1940-09-21 | 1943-02-02 | Gen Electric | Method of determining the porosity of materials |
| US4164139A (en) * | 1978-08-09 | 1979-08-14 | The Gilsabind Company | Asphalt penetration indicator |
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| CN102183445A (en) * | 2011-03-07 | 2011-09-14 | 福建工程学院 | Instrument and method for testing permeability coefficient of water-permeable cement concrete |
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| CN206459935U (en) * | 2017-02-15 | 2017-09-01 | 北京工业大学 | A kind of instrument for measuring permeability coefficient device of water-permeable brick |
| CN206638555U (en) * | 2017-04-18 | 2017-11-14 | 北京科技大学 | A kind of water permeability coefficient of water permeable brick test device simple to operate |
| CN207586097U (en) * | 2017-12-22 | 2018-07-06 | 山东大学 | A kind of road surface water-permeable brick permeability coefficient tester |
-
2017
- 2017-12-22 CN CN201711406695.3A patent/CN108007844A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2310111A (en) * | 1940-09-21 | 1943-02-02 | Gen Electric | Method of determining the porosity of materials |
| US4164139A (en) * | 1978-08-09 | 1979-08-14 | The Gilsabind Company | Asphalt penetration indicator |
| CN101738363A (en) * | 2009-12-28 | 2010-06-16 | 上海嘉洁环保工程有限公司 | Instrument and method for testing permeability coefficient |
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| CN206638555U (en) * | 2017-04-18 | 2017-11-14 | 北京科技大学 | A kind of water permeability coefficient of water permeable brick test device simple to operate |
| CN207586097U (en) * | 2017-12-22 | 2018-07-06 | 山东大学 | A kind of road surface water-permeable brick permeability coefficient tester |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342290A (en) * | 2018-11-09 | 2019-02-15 | 北京建筑大学 | A kind of permeable pavement apparatus for measuring permeability coefficient |
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