CN106769785A - A kind of instrument for measuring permeability coefficient device of water-permeable brick - Google Patents
A kind of instrument for measuring permeability coefficient device of water-permeable brick Download PDFInfo
- Publication number
- CN106769785A CN106769785A CN201710080133.8A CN201710080133A CN106769785A CN 106769785 A CN106769785 A CN 106769785A CN 201710080133 A CN201710080133 A CN 201710080133A CN 106769785 A CN106769785 A CN 106769785A
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- China
- Prior art keywords
- water
- test cartridge
- permeable brick
- brace
- gap
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Classifications
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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
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
Abstract
A kind of instrument for measuring permeability coefficient device of water-permeable brick, belongs to field of civil engineering.Including water supply container, test cartridge, adjustable jack post and water receiver, the water supply container gives test cartridge water delivery by feed pipe, the test cartridge upper side is provided with gap, the adjustable jack post is provided with four support columns, each support column is provided with cross-brace, the water receiver upper side has seepage mouth, and seepage mouth bottom sets a graduated cylinder.The present invention is the measure suitable for variously-shaped water permeability coefficient of water permeable brick, the support Design of sample is made up of four moveable support columns, and the cross-brace of support column can be moved up and down along support column scale, to adjust the water-head of test, test cartridge is wrapped in each side of water-permeable brick, it is ensured that water is only from the upper table of water-permeable brick surface penetration downwards.Present apparatus application method is simple, and certainty of measurement is high, can be used for the measure of variously-shaped water permeability coefficient of water permeable brick.
Description
Technical field
The invention belongs to field of civil engineering, it is related to a kind of instrument for measuring permeability coefficient device, the more particularly to permeable system of water-permeable brick
Several determining instruments.
Background technology
With the quickening of economic fast-developing and urbanization process, urban surface is by increasing cement pavement, drip
The impermeable materials such as blue or green road surface are covered.Impermeability road surface, milliosmolarity greatly reduces under on the one hand causing urban rainwater, causes underground
Water cannot be supplemented, level of ground water continuous decrease, or even cause surface subsidence, the problems such as seawater invasion；On the other hand, road surface rain
Water enters river by sewerage system, increases the pressure of sewerage system, and the rainwater that row does not walk then produces big on road surface
Amount ponding, urban flooding occurs again and again.Numerous studies show, compared with waterproof pavement, permeable brick paving has alleviates earth's surface
Under runoff, charging point, rainwater on road surface is purified, is improved urban Heat Environment, is absorbed city noise, improves urban surface soil ecology ring
Border etc. acts on.
Water-permeable brick as a kind of new road pavement material, due to its high water-permeability and the design feature of high porosity,
On the one hand surface gathered water is eliminated, timely recharge of groundwater resource reduces setting of ground, alleviates city flood fighting draining with pipe
The pressure of road dredging；On the other hand by the evaporation of moisture in brick inside aperture, reduce urban ground heat absorption and " heat island is imitated
Should ", and the noise pollution in city is effectively reduced, it has been largely overcoming the waterproofing types such as conventional concrete or bituminous paving
The inferior position of ground pavement material.Coefficient of permeability is used as an index for characterizing water-permeable brick water permeability, so being tested in engineering
The coefficient of permeability tool of water-permeable brick has very important significance.
But water permeability coefficient of water permeable brick measure device in the market is also few at present, and there are many defects, such as the precision of measurement
Not enough, it is impossible to many experiments under different hydraulic gradients, can only typically be tested under a fixed constant head；Survey
Determining sample has limitation, and determination sample only is fashioned into fixed shape can just measure；Water-permeable brick side wall has seepage, to surveying
The side wall for determining sample is not processed, and continuous mode reclaimed water has vertically to permeate also horizontal infiltration, and measurement result can be caused
Error.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the purpose of the present invention is to there are provided that a kind of principle is simple, be easy to
The determining instrument of operation, certainty of measurement water permeability coefficient of water permeable brick high, it is saturating that the determining instrument is applied to variously-shaped water-permeable brick
The measure of water coefficient.
The technical problem to be solved in the present invention, is to provide a kind of simple structure, the permeable system of certainty of measurement water-permeable brick high
Number determining instrument.
What the technical problem was realized in：A kind of instrument for measuring permeability coefficient of pervious brick device, it is characterised in that：Including supplying water
Container (8), test cartridge (1), adjustable jack post (5) and water receiver (3), water supply container is by feed pipe (9) to test suite
Cylinder water delivery, the upper and lower end face opening of test cartridge (1), and test cartridge (1) is in water receiver (3), test cartridge upper side
Face is provided with gap (2), and the adjustable jack post is provided with four support columns, and each support column is provided with can be upper and lower along support column
The cross-brace of slip, the water receiver upper side has seepage mouth (4), and seepage mouth bottom sets a graduated cylinder (7)；Four branch
Dagger is located in water receiver (3) and positioned at test cartridge (1) outward；The seepage mouth of the gap (2) higher than water receiver of test cartridge
(4)；The gap (2) of test cartridge is connected to water receiver (3) outward by pipeline；Water-permeable brick to be tested is located at test cartridge
(1) the surrounding side of water-permeable brick in and to be tested and test cartridge (1) fixing seal, the cross-brace of support column are held and are treated
The water-permeable brick and test cartridge (1) of test.
Support column is provided with scale, and cross-brace causes that cross-brace can be moved up and down and consolidated along support column by knob
It is fixed.Cross-brace is triangle, and support column is cylindric.
Four support columns can be moved along water receiver (3) bottom surface to all directions.
Feed pipe (9) is provided with tongs, can be used for regulating water flow.
The position of water supply container (8) is higher than test cartridge (1).
Test cartridge (1) is sealed to form for cystosepiment, and the cystosepiment of test cartridge (1) wraps the surrounding of water-permeable brick.
Its operating process of method of testing is as follows：Comprise the following steps：
(1) with the glue that modulates, each side of water-permeable brick sample (11) to be measured is applied to, makes the water can only be from upper surface
Downward surface penetration, will not horizontal infiltration, the cystosepiment that size will have been cut out afterwards pastes to be formed around water-permeable brick sample and surveys
Examination sleeve (1), in test cartridge periphery, adhesive tape is wound reinforcing；And will be formed between water-permeable brick sample surrounding and cystosepiment
Gap and cystosepiment connection gap sealed；
(2) height of the cross-brace (6) of adjustment adjustable jack post (5) is consistent, by water-permeable brick sample and test
Sleeve (1) is held so that gap (2) center of test cartridge (1) is with the distance at seepage mouth (4) center of water receiver (3)
Fixed head difference H；
(3) water is injected from water supply container (8) to test cartridge (1) by feed pipe (9), adjusts water injection rate, water is by saturating
Water brick sample is penetrated into water receiver (3), and remaining water is from seepage mouth after the water level in water receiver (3) reaches seepage mouth (4)
(4) flow out, continuing adjustment water injection rate makes the water level in test cartridge (1) reach gap (2), finally makes total water yield and water filling
Amount stabilization, total water yield is the outflow of the seepage mouth (4) of the outflow water and water receiver (3) of the gap (2) of measuring set of cylinder (1)
Water sum；
(4) after total water yield and water injection rate stabilization, starting startup stopwatch carries out timing t, while metering is oozed in time t
The water yield Q at the mouth of a river (4), and by formula KT=QL/ (AHt), calculates the coefficient of permeability K of water-permeable brickT, unit cm/s,
Wherein Q is to ooze out water, units/ml in time t seconds；L is water-permeable brick sample thickness, unit cm；A is water-permeable brick
Sample top surface area, unit cm2；H is water-head, unit cm；T times, unit s.
(5) height of the cross-brace (6) of adjustment adjustable jack post (5) changes water-head H, and its adjustment number of times is many
The step of Yu Sanci, repeat step (3)-(4), the coefficient of permeability K of the water-permeable brick sample (11) that will repeatedly calculateTPut down
, average as last coefficient of permeability measured value.
The invention has the advantages that：The present invention includes water supply container, test cartridge, adjustable jack post and water receiver,
Water supply container gives test cartridge water delivery by feed pipe, and test cartridge upper side is provided with gap, and water receiver upper side has
Seepage mouth, gap is provided with four support columns, support column with the water-head that the centre-to-centre spacing of seepage mouth is test, adjustable jack post
Can be to all directions movement to be applied to the measure of variously-shaped water-permeable brick sample, the cross-brace of each support column can
The height for moving up and down to adjust test cartridge with the graduation mark along support column (changes the height of measuring set of cylinder gap
Degree), such that it is able to adjust the water-head of test so that water-permeable brick sample can be in the different hydraulic gradient (water in testing
Potential difference/sample thickness) under measure its permeable situation.Its simple structure, scientific and reasonable, test operation are convenient, certainty of measurement is high, can
With the measure suitable for variously-shaped water permeability coefficient of water permeable brick.
Brief description of the drawings
Fig. 1 are the instrument for measuring permeability coefficient device structural representations of water-permeable brick；
Wherein 1. test cartridges, 2. gap, 3. water receiver, 4. seepage mouth, 5. adjustable jack post, 6. cross-brace,
7. graduated cylinder, 8. water supply container, 9. feed pipe, 10. tongs, 11 water-permeable brick samples.
Fig. 2 are the detail drawings of adjustable jack post in the present invention；
Wherein cross-brace can be made to be moved up and down along support column with adjusting knob, support column is marked with scale.
Specific embodiment
With reference to embodiment, the invention will be further described, but the present invention is not limited to following examples.
Embodiment 1
Refer to shown in Fig. 1, be an a kind of embodiment of instrument for measuring permeability coefficient of pervious brick device of the invention, including by steeping
Test cartridge 1 that foam plate is made, water receiver 3, adjustable jack post 5 and the water supply container 8 being made up of transparency glass plate, the survey
The examination upper side of sleeve 1 is provided with gap 2；The upper side of the water receiver 3 has seepage mouth 4；Its gap 2 and seepage mouth 4 are common
Same-action can ensure that the test of water permeability coefficient of water permeable brick is carried out in the presence of water-head H, and its seepage mouth 4 can be collected
Water percolating capacity Q；There is a graduated cylinder 7 lower section of the seepage mouth 4；The adjustable jack post 5 is provided with four support columns；Each support column can
Moved with to all directions, to be applied to variously-shaped test sample；Each of which support column is provided with columned laterally branch
Support 6 is directly acted on test sample；The bottom delivery port of the water supply container 8 gives test cartridge water delivery by feed pipe 9；It supplies water
Pipe 9 is provided with tongs 10.
Embodiment of the present invention operating procedure is illustrated with reference to Fig. 1.Its operating process is as follows：
1st, with the glue for modulating, each side of water-permeable brick sample 11 to be measured is applied to, and cause that its side is relatively flat
It is sliding and waterproof, make water can only from upper table surface penetration downwards, will not horizontal infiltration, the cystosepiment of size will have been cut out afterwards
Formation test cartridge 1 around water-permeable brick sample is pasted, reinforcing is wound in the periphery adhesive tape of test cartridge 1.
2nd, it is embedded into sealing marine glue in the gap formed between the surrounding of water-permeable brick sample 11 and cystosepiment and cystosepiment
In the gap of connection.
3rd, the height of the cross-brace 6 of adjustment adjustable jack post 5 is selected numerical value and keeps highly consistent so that surveyed
The distance for trying the center of gap 2 of sleeve 1 and the center of seepage mouth 4 of water receiver 3 is fixed head difference H.
4th, will solidify, seal after test sample 11 be placed in the cross-brace of adjustable jack post 5, adjust it is adjustable
Four positions of support column of support 5, make test device firm stable.
5th, water is injected from water supply container 8 to test cartridge 1 by feed pipe 9, adjusts tongs 10 to adjust water injection rate, water
In penetrating into water receiver 3 by water-permeable brick sample, remaining water is from seepage mouth 4 after the water level in water receiver 3 reaches seepage mouth 4
Outflow, continue adjust water injection rate the water level in test cartridge 1 is reached gap 2, finally make water yield (measuring set of cylinder 1 overflow
The outflow water sum of the outflow water at the mouth of a river 2 and the seepage mouth 4 of water receiver 3) it is stable with water injection rate；
6th, after water yield and water injection rate stabilization, starting startup stopwatch carries out timing t, while metering is seeped water in time t
The water yield Q of mouth 4, and by formula KT=QL/ (AHt) (1), calculates the coefficient of permeability K of water-permeable brickT, unit cm/s, wherein Q
It is the water of oozing out in time t seconds, units/ml；L is water-permeable brick sample thickness, unit cm；A is water-permeable brick sample top surface area,
Unit cm2；H is water-head, unit cm；T times, unit s.
7th, adjust the height of the cross-brace 6 of adjustable jack post 5 to change water-head H, its adjustment number of times is no less than three times,
The step of repeat step 4-6, the coefficient of permeability K of the water-permeable brick sample 11 that will repeatedly calculateTAveragely, average
As last coefficient of permeability measured value.
Claims (7)
1. a kind of instrument for measuring permeability coefficient of pervious brick device, it is characterised in that：Including water supply container (8), test cartridge (1), adjustable
Frame (5) and water receiver (3), water supply container give test cartridge water delivery by feed pipe (9), test cartridge (1) it is upper and lower
End face opening, and test cartridge (1) is in water receiver (3), test cartridge upper side is provided with gap (2), described adjustable
Frame is provided with four support columns, and each support column is provided with the cross-brace that can be slided up and down along support column, the water storage
Device upper side has seepage mouth (4), and seepage mouth bottom sets a graduated cylinder (7)；Four support columns are located in water receiver (3) and position
In test cartridge (1) outward；Seepage mouth (4) of the gap (2) of test cartridge higher than water receiver；The gap (2) of test cartridge
Water receiver (3) is connected to outward by pipeline；Water-permeable brick to be tested water-permeable brick in test cartridge (1) and to be tested
Surrounding side and test cartridge (1) fixing seal, the cross-brace of support column hold water-permeable brick and test cartridge to be tested
(1)。
2. according to a kind of instrument for measuring permeability coefficient of pervious brick device described in claim 1, it is characterised in that：Support column is provided with quarter
Degree, cross-brace causes that cross-brace can be moved up and down and fixed along support column by knob；Cross-brace is triangle, branch
Dagger is cylindric.
3. according to a kind of instrument for measuring permeability coefficient of pervious brick device described in claim 1, it is characterised in that：Four support columns can edge
Moved to all directions water receiver (3) bottom surface.
4. according to a kind of instrument for measuring permeability coefficient of pervious brick device described in claim 1, it is characterised in that：Feed pipe sets on (9)
There is tongs, can be used for regulating water flow.
5. according to a kind of instrument for measuring permeability coefficient of pervious brick device described in claim 1, it is characterised in that：Water supply container (8)
Position is higher than test cartridge (1).
6. according to a kind of instrument for measuring permeability coefficient of pervious brick device described in claim 1, it is characterised in that：Test cartridge (1) is
Cystosepiment is sealed to form, and the cystosepiment of test cartridge (1) wraps the surrounding of water-permeable brick.
7. the method that water permeability coefficient of water permeable brick is determined using the determining instrument described in claim any one of 1-6, it is characterised in that
Comprise the following steps：
(1) with the glue that modulates, each side of water-permeable brick sample (11) to be measured is applied to, makes the water can only be from upper table downwards
Surface penetration, will not horizontal infiltration, the cystosepiment that size will have been cut out afterwards to paste and form test suite around water-permeable brick sample
Cylinder (1), in test cartridge periphery, adhesive tape is wound reinforcing；And the seam that will be formed between water-permeable brick sample surrounding and cystosepiment
The gap of gap and cystosepiment connection is sealed；
(2) height of the cross-brace (6) of adjustment adjustable jack post (5) is consistent, by water-permeable brick sample and test cartridge
(1) hold so that gap (2) center of test cartridge (1) is fixation with the distance at seepage mouth (4) center of water receiver (3)
Head difference H；
(3) water is injected from water supply container (8) to test cartridge (1) by feed pipe (9), adjusts water injection rate, water passes through water-permeable brick
Sample is penetrated into water receiver (3), and remaining water flows from seepage mouth (4) after the water level in water receiver (3) reaches seepage mouth (4)
Go out, continuing adjustment water injection rate makes the water level in test cartridge (1) reach gap (2), finally makes total water yield steady with water injection rate
Fixed, total water yield is the outflow water of the seepage mouth (4) of the outflow water and water receiver (3) of the gap (2) of measuring set of cylinder (1)
Sum；
(4) after total water yield and water injection rate stabilization, starting startup stopwatch carries out timing t, while metering seepage mouth in time t
(4) water yield Q, and by formula KT=QL/ (AHt), calculates the coefficient of permeability K of water-permeable brickT, unit cm/s,
Wherein Q is to ooze out water, units/ml in time t seconds；L is water-permeable brick sample thickness, unit cm；A is water-permeable brick sample
Top surface area, unit cm2；H is water-head, unit cm；T times, unit s；
(5) height of the cross-brace (6) of adjustment adjustable jack post (5) changes water-head H, and its adjustment number of times is no less than three
It is secondary, the step of repeat step (3)-(4), the coefficient of permeability K of the water-permeable brick sample (11) that will repeatedly calculateTCarry out averagely,
Average as last coefficient of permeability measured value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710080133.8A CN106769785A (en) | 2017-02-15 | 2017-02-15 | A kind of instrument for measuring permeability coefficient device of water-permeable brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710080133.8A CN106769785A (en) | 2017-02-15 | 2017-02-15 | A kind of instrument for measuring permeability coefficient device of water-permeable brick |
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| Publication Number | Publication Date |
|---|---|
| CN106769785A true CN106769785A (en) | 2017-05-31 |
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ID=58957118
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710080133.8A Pending CN106769785A (en) | 2017-02-15 | 2017-02-15 | A kind of instrument for measuring permeability coefficient device of water-permeable brick |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709832A (en) * | 2018-05-08 | 2018-10-26 | 中山大学 | A kind of measurement device and method of the effective penetration depth of organic stabilizer |
| CN111982777A (en) * | 2020-08-18 | 2020-11-24 | 盐城工学院 | Measuring device and measuring method for permeability of porous electrode of flow battery |
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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 |
| CN202330232U (en) * | 2011-11-15 | 2012-07-11 | 山东大学 | Device for testing permeability coefficient of pervious concrete |
| CN203732408U (en) * | 2014-03-12 | 2014-07-23 | 江苏省建筑工程质量检测中心有限公司 | Testing device for permeation coefficient of pervious concrete |
| CN105738269A (en) * | 2016-05-10 | 2016-07-06 | 核工业湖州工程勘察院 | Device for measuring permeability coefficient of concrete |
| CN205620278U (en) * | 2016-05-10 | 2016-10-05 | 核工业湖州工程勘察院 | Concrete coefficient measurement device that permeates water |
-
2017
- 2017-02-15 CN CN201710080133.8A patent/CN106769785A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN202330232U (en) * | 2011-11-15 | 2012-07-11 | 山东大学 | Device for testing permeability coefficient of pervious concrete |
| CN203732408U (en) * | 2014-03-12 | 2014-07-23 | 江苏省建筑工程质量检测中心有限公司 | Testing device for permeation coefficient of pervious concrete |
| CN105738269A (en) * | 2016-05-10 | 2016-07-06 | 核工业湖州工程勘察院 | Device for measuring permeability coefficient of concrete |
| CN205620278U (en) * | 2016-05-10 | 2016-10-05 | 核工业湖州工程勘察院 | Concrete coefficient measurement device that permeates water |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709832A (en) * | 2018-05-08 | 2018-10-26 | 中山大学 | A kind of measurement device and method of the effective penetration depth of organic stabilizer |
| CN111982777A (en) * | 2020-08-18 | 2020-11-24 | 盐城工学院 | Measuring device and measuring method for permeability of porous electrode of flow battery |
| CN111982777B (en) * | 2020-08-18 | 2024-01-16 | 盐城工学院 | Measuring device and measuring method for permeability of porous electrode of flow battery |
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Application publication date: 20170531 |