CN109342286A - A kind of permeable pavement ground water permeability on-the-spot test method and device - Google Patents
A kind of permeable pavement ground water permeability on-the-spot test method and device Download PDFInfo
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- CN109342286A CN109342286A CN201811079005.2A CN201811079005A CN109342286A CN 109342286 A CN109342286 A CN 109342286A CN 201811079005 A CN201811079005 A CN 201811079005A CN 109342286 A CN109342286 A CN 109342286A
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- 238000010998 test method Methods 0.000 title claims abstract description 21
- 230000035699 permeability Effects 0.000 title claims abstract description 19
- 239000003673 groundwater Substances 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- 238000005259 measurement Methods 0.000 claims abstract description 54
- 238000012360 testing method Methods 0.000 claims abstract description 46
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 23
- 239000000440 bentonite Substances 0.000 claims abstract description 23
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 18
- 230000008595 infiltration Effects 0.000 claims abstract description 16
- 238000001764 infiltration Methods 0.000 claims abstract description 16
- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007924 injection Substances 0.000 claims abstract description 13
- 238000002788 crimping Methods 0.000 claims abstract description 10
- 239000003550 marker Substances 0.000 claims abstract description 10
- 238000009738 saturating Methods 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000011449 brick Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
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
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Road Repair (AREA)
Abstract
The present invention relates to a kind of permeable pavement ground water permeability on-the-spot test methods, comprising: the round test zone of certain diameter is chosen on permeable pavement ground；On round test zone boundary, crimping is carried out to loop wire gap using dry bentonite and squeezes sealing；Measurement ring identical with round test zone diameter is fixed along loop wire, and along the periphery of measurement ring, is sealed at the contact portion between measurement ring and permeable pavement ground using wet bentonite, wherein measurement ring is formed with scale marker on its inner wall；The water injection of known volume is measured in ring within a certain period of time, and reads water level depth in measurement ring when filling the water and stopping；It is read when filling the water and stopping in measurement ring after water level depth, continues to read water level depth in measurement ring according to certain time interval；Utilize calculating formula: ponding process infiltration rate is calculated using matched curve to calculate the injecting process infiltration rate in (water injection rate-stopping water level depth * anchor ring product)/water injection time.
Description
Technical field
The present invention relates to hydraulic engineerings and field of environmental technology, and it is existing to be more particularly to a kind of permeable pavement ground water permeability
Field test method and device.
Background technique
In recent years, the stagnant infiltration effect disquisition of permeable pavement at home and abroad attracts wide attention.The urban waterlogging that heavy rain causes
Increasingly frequently, to alleviate urban waterlogging, the low construction for influencing development facility need to be accelerated, infiltration is mated formation as more typical low influence
Development facility, permeance property are to measure the important parameter of permeable pavement performance.Such as China's building material industry standard " water-permeable brick "
The infiltration rate of (JC/T 945-2005) regulation water-permeable brick should be not less than 0.1mm/s.Beijing's provincial standard " urban rainwater benefit
With engineering technical regulation " (DB11/T 685-2009) regulation " permeable pavement ground design repetition period of rainfall should be not less than 2 years ".
But the measurement method of the prior art as many as there are problems that, such as measuring device is complicated, and it is inconvenient for operation, it is not suitable for outdoor
Operation, measurement result deviation are big etc..
Accordingly, there exist to new measuring technique and device requirement.
Summary of the invention
More existing in the prior art in order to solve the problems, such as, the purpose of the present invention is to provide a kind of permeable pavement ground
Water permeability on-the-spot test method.This method is easy to operate, can preferably serve the mankind and grind to the science of pervious surface runoff
Study carefully.Another object of the present invention is to provide a kind of permeable pavement ground water permeability on-site testing device, which can be
Scene directly measure, and it is at low cost, safeguard less, be easily portable, measurement result is accurate.
According to an aspect of the present invention, a kind of permeable pavement ground water permeability on-the-spot test method is provided, including following
Step:
The round test zone of certain diameter is chosen on permeable pavement ground；
On the round test zone boundary, crimping is carried out to loop wire gap using dry bentonite and squeezes sealing；
Measurement ring identical with round test zone diameter is fixed along the loop wire, and along the periphery of measurement ring, is adopted
It is sealed at the contact portion between measurement ring and permeable pavement ground with wet bentonite, wherein measurement ring is in its inner wall
On be formed with scale marker；
The water injection of known volume is measured in ring within a certain period of time, and reads water in measurement ring when filling the water and stopping
Bit depth；
Utilize calculating formula: (water injection rate-stopping water level depth * anchor ring product)/water injection time calculates above-mentioned filled the water
Journey infiltration rate.
In preferred embodiments of the present invention, wherein round test zone diameter is 50cm, such as with measurement iron hoop diameter
Identical, the selection of round test zone should for example avoid T-shaped seam as far as possible.
In preferred embodiments of the present invention, wherein multiple round test zones is selected to carry out test and two test points
Spacing is not less than 3cm, and infiltration rate takes the average value of multiple round test zones.
In preferred embodiments of the present invention, wherein carrying out crimping to loop wire gap using dry bentonite squeezes sealing
Gap sealing crimping is no more than 0.5cm.
In preferred embodiments of the present invention, wherein using wet bentonite between measurement ring and permeable pavement ground
The thickness being sealed at contact portion is no more than 0.5cm.
In preferred embodiments of the present invention, the test method further includes that water in measurement ring is read when filling the water and stopping
After bit depth, continues to read water level depth in measurement ring according to certain time interval, the Fitting Calculation ponding process is recycled to seep
Saturating rate.
In preferred embodiments of the present invention, wherein the high 200mm of the measurement ring, inner wall scale marker measurement accuracy are
1mm。
In preferred embodiments of the present invention, wherein read when filling the water and stopping in measurement ring after water level depth, according to
30s, 1min, 2min, 4min, 10min carry out water level depth reading.
In preferred embodiments of the present invention, wherein 30L water is injected in measurement ring within the 30s time.
According to another aspect of the present invention, a kind of above-mentioned permeable pavement ground water permeability on-the-spot test method of implementation is provided
Device, including water filling device, time set, measurement ring and bentonite sealing ring, wherein shape on the inner wall of the measurement ring
At there is scale marker, the periphery of with permeable pavement the face contact of the measurement ring is arranged in the bentonite sealing ring.
Method of the invention is simple, convenient quick accurate, and the device structure that the present invention uses is simple, is convenient for
Scene is tested.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is to be illustrated according to the process of the permeable pavement ground water permeability on-the-spot test method of one embodiment of the invention
Figure.
Fig. 2 is the schematic diagram according to the round test zone on the permeable pavement ground of one embodiment of the invention.
Fig. 3 is the permeable pavement ground water permeability on-site testing device structural schematic diagram according to one embodiment of the invention.
Description of symbols: 10- permeable pavement ground；11- measures ring；12- scale marker；13- bentonite sealing ring；
14- circle test zone；15- loop wire gap
Specific embodiment
Detailed description of the preferred embodiments with reference to the accompanying drawing, but be not intended to limit the invention
Protection scope.
Fig. 1 is to be illustrated according to the process of the permeable pavement ground water permeability on-the-spot test method of one embodiment of the invention
Figure.Fig. 2 is the schematic diagram according to the round test zone on the permeable pavement ground of one embodiment of the invention.Fig. 3 is according to this hair
The permeable pavement ground water permeability on-site testing device structural schematic diagram of a bright embodiment.
With reference to Fig. 1-3, water permeability on-the-spot test method in permeable pavement ground according to the present invention may include following step
It is rapid:
The round test zone 14 of certain diameter is chosen on permeable pavement ground 10, as shown in Figure 2.Then in the circle
Shape test zone boundary carries out crimping to loop wire gap 15 using dry bentonite and squeezes sealing, and when to avoid test, water passes through
The loop wire gap 15 penetrates into except test zone 14, thus influences test result.The research of the invention finds that bentonite is with good
Good wet Expansion sealing, can satisfy the requirement of test, and be easy to get, at low cost and pollution-free.Therefore, of the invention
Selection bentonite is sealed.Sealing is completed remaining bentonite sweeping out loop wire.
Round test zone diameter of the invention, which for example can according to need, carrys out selection appropriate, such as can be 50cm,
60cm etc., the selection of round test zone can for example avoid T-shaped seam as far as possible.Can reduce in this way sealing difficulty and
The infiltration of unnecessary water when measurement.
In preferred embodiments of the present invention, above-mentioned circle test zone boundary, using dry bentonite to loop wire gap
The gap sealing crimping for carrying out crimping extruding sealing is preferably generally no more than 0.5cm, and sealing is completed to cleaning in region, will
Remaining bentonite sweeps out loop wire.
Then, measurement ring 11 identical with round 14 diameter of test zone is fixed along the loop wire, and along measurement ring
11 periphery is sealed at the contact portion between measurement ring and permeable pavement ground 10, thus using wet bentonite
Form bentonite sealing ring 13.In preferred embodiments of the present invention, wherein using wet bentonite in measurement ring and permeable paving
The thickness being sealed at contact portion between dress ground is preferably generally no more than 0.5cm.
Measurement ring 11 such as can be by metal such as iron, stainless steel, aluminium or other suitable materials are made, in
Diameter is consistent with round test zone, such as can be 50cm, 60cm etc..Its height appropriate can select, to meet injection
The capacity of water, such as can a high position 200mm, 250mm etc..
It is formed with scale marker 12 on the inner wall of measurement ring 11, such as its measurement accuracy can be 1mm, even
It is higher.
Then, the water injection of known volume is measured in ring 11 within a certain period of time, and reads and surveys at the end of water filling
Measure water level depth (scale marker) in ring.Such as in preferred embodiments of the present invention, 30L water can be infused within the 30s time
Enter to measure in ring.The mode of reading can be in such a way that range estimation be read, can also be by the way of photograph shooting, such as is controlled
Start camera shooting at the end of water filling, those skilled in the art can easily realize such control.
In preferred embodiments of the present invention, the test method further includes that water level in measurement ring is read when filling the water and stopping
After depth, continues to read water level depth in measurement ring according to certain time interval, curve matching is recycled to calculate ponding process
Infiltration rate.Such as can be read when filling the water and stopping in measurement ring after water level depth, according to 30s, 1min, 2min, 4min,
The time interval of 10min carries out water level depth reading.
Finally, utilizing calculating formula: (water injection rate-stopping water level depth * anchor ring product)/water injection time calculates above-mentioned note
Water process infiltration rate.Ponding process infiltration rate then utilizes the above-mentioned water level and flow read in each stage and corresponding record
Time between relationship carry out the Fitting Calculation.
In preferred embodiments of the present invention, it can choose multiple round test zones and carry out test and two test points
Spacing is not less than 3cm, and infiltration rate takes the average value of multiple round test zones.In addition, above-mentioned manually by certain volume
Water is infused into during measurement iron hoop, measurement iron hoop and water-permeable brick contact position can be observed in real time, if leak.If leak,
Measurement can be terminated, sealing is reset.
As shown in figure 3, the present invention provides the device for implementing above-mentioned permeable pavement ground water permeability on-the-spot test method,
The apparatus may include measurement ring 11 and bentonite sealing rings 13, wherein being formed with scale marker on the inner wall of the measurement ring
12, the periphery of with permeable pavement to be measured the face contact of the measurement ring is arranged in the bentonite sealing ring 13.
Method of the invention is simple, convenient quick, and the device structure used is simple, convenient for being tested at the scene.
Method testing result of the invention is more accurate, through overtesting, as a result with thank to the research method testing result basic one added et al.
Cause: " road often uses the water permeability of water-permeable brick to study " is thanked and is added, traffic standardization, and 2011, the 3/4th phase.
Specific embodiment: utilizing method of the invention, mats formation in 5 demonstration projects of Haidian District Beijing and carries out at 12 at 36 points
Water permeability monitoring, it is specific monitor environment and the result is as follows:
1 detection project of table and content
2 testing result of table
Water permeability field test is carried out to 12 groups of permeable pavement ground of 5 rainwater utilization demonstration projects.According to
The related specification requirements such as GB50400, DB11/685, DB11/686, in permeable pavement ground, permeable surface layer infiltration coefficient should be big
In 1 × 10-2Cm/s, other each layer infiltration coefficients such as porous base course are not less than surface layer.Determine through field test, part engineering is not up to
To code requirement, water permeability is undesirable, and integrated criterion ratio is only 75%.
It is provided for the embodiments of the invention technical solution above to be described in detail, specific case used herein
The principle and embodiment of the embodiment of the present invention are expounded, the explanation of above embodiments is only applicable to help to understand this
The principle of inventive embodiments；Simultaneously those of ordinary skill in the art, according to an embodiment of the invention, specific embodiment with
And there will be changes in application range, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (8)
1. a kind of permeable pavement ground water permeability on-the-spot test method, comprising the following steps:
The round test zone of certain diameter is chosen on permeable pavement ground；
On the round test zone boundary, crimping is carried out to loop wire gap using dry bentonite and squeezes sealing；
Measurement ring identical with round test zone diameter is fixed along the loop wire, and along the periphery of measurement ring, use is wet
Profit bentonite is sealed at the contact portion between measurement ring and permeable pavement ground, wherein measurement ring shape on its inner wall
At there is scale marker；
The water injection of known volume is measured in ring within a certain period of time, and reads water level depth in measurement ring when filling the water and stopping
Degree；
It is read when filling the water and stopping in measurement ring after water level depth, continues to read water level in measurement ring according to certain time interval
Depth；With
Utilize calculating formula: (water injection rate-stopping water level depth * anchor ring product)/water injection time seeps to calculate above-mentioned the injecting process
Saturating rate, and ponding process infiltration rate is calculated using matched curve.
2. test method according to claim 1, which is characterized in that round test zone diameter is 50cm.
3. test method according to claim 1, which is characterized in that the multiple round test zones of selection carry out test and
Two test point spacing are not less than 3cm, and infiltration rate takes the average value of multiple round test zones.
4. test method according to claim 1, which is characterized in that carry out crimping to loop wire gap using dry bentonite
The gap sealing crimping for squeezing sealing is no more than 0.5cm.
5. test method according to claim 1, which is characterized in that using wet bentonite in measurement ring and permeable pavement
The thickness being sealed at contact portion between ground is no more than 0.5cm.
6. test method according to claim 1, which is characterized in that the high 200mm of the measurement ring, inner wall scale marker are surveyed
Accuracy of measurement is 1mm.
7. test method according to claim 1, which is characterized in that read water level depth in measurement ring when filling the water and stopping
Later, water level depth reading is carried out according to 30s, 1min, 2min, 4min, 10min.
8. test method according to claim 1 or 2, which is characterized in that 30L water is injected measurement ring within the 30s time
It is interior.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811079005.2A CN109342286A (en) | 2018-09-17 | 2018-09-17 | A kind of permeable pavement ground water permeability on-the-spot test method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811079005.2A CN109342286A (en) | 2018-09-17 | 2018-09-17 | A kind of permeable pavement ground water permeability on-the-spot test method and device |
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| CN109342286A true CN109342286A (en) | 2019-02-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031380A (en) * | 2019-05-21 | 2019-07-19 | 科利尔环保科技有限责任公司 | A kind of method of scene nondestructive measurement celluar concrete infiltration rate |
| 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 |
| CN113624664A (en) * | 2021-09-16 | 2021-11-09 | 北京市水科学技术研究院 | Simple and rapid on-site determination method for water permeable pavement performance |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110031380A (en) * | 2019-05-21 | 2019-07-19 | 科利尔环保科技有限责任公司 | A kind of method of scene nondestructive measurement celluar concrete infiltration rate |
| 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 |
| CN113624664A (en) * | 2021-09-16 | 2021-11-09 | 北京市水科学技术研究院 | Simple and rapid on-site determination method for water permeable pavement performance |
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