CN110296929A - A kind of device and method of the permeable mixture transverse drainage ability of Lab-evaluation - Google Patents
A kind of device and method of the permeable mixture transverse drainage ability of Lab-evaluation Download PDFInfo
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- CN110296929A CN110296929A CN201910672926.8A CN201910672926A CN110296929A CN 110296929 A CN110296929 A CN 110296929A CN 201910672926 A CN201910672926 A CN 201910672926A CN 110296929 A CN110296929 A CN 110296929A
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- 239000000203 mixture Substances 0.000 title claims abstract description 23
- 238000011156 evaluation Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 105
- 238000012360 testing method Methods 0.000 claims abstract description 58
- 150000001875 compounds Chemical class 0.000 claims abstract description 43
- 230000002093 peripheral effect Effects 0.000 claims abstract description 21
- 239000007921 spray Substances 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 5
- 239000012466 permeate Substances 0.000 claims description 4
- 238000005325 percolation Methods 0.000 claims description 3
- 239000008400 supply water Substances 0.000 claims 1
- 230000008595 infiltration Effects 0.000 description 5
- 238000001764 infiltration Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000009666 routine test Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- JLQUFIHWVLZVTJ-UHFFFAOYSA-N carbosulfan Chemical compound CCCCN(CCCC)SN(C)C(=O)OC1=CC=CC2=C1OC(C)(C)C2 JLQUFIHWVLZVTJ-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 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
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a kind of device and methods of the permeable mixture transverse drainage ability of Lab-evaluation, permeable compound test specimen to be measured is between upper cover plate and lower cover plate, the two sides of permeable compound test specimen to be measured are provided with the first water gap and gap of catchmenting between the inner wall of lower die cylinder respectively, there is the second water gap between a part of upper cover plate outer peripheral surface and the inner wall of lower die cylinder, second water gap is connected with the first water gap, it is tightly connected between the other parts of upper cover plate outer peripheral surface and the inner wall of lower die cylinder, there is water outlet gap between a part of lower cover plate outer peripheral surface and the inner wall of lower die cylinder, wherein, the water outlet gap is connected with gap of catchmenting, it is tightly connected between the other parts of lower cover plate outer peripheral surface and the inner wall of lower die cylinder, the device and method can accurately evaluate the transverse drainage ability of permeable mixture.
Description
Technical field
The invention belongs to field of civil engineering, be related to a kind of permeable mixture transverse drainage ability of Lab-evaluation device and
Method.
Background technique
With the development of " sponge city " theory, the application of porous pavement is also more and more.In porous pavement with " sponge
What city " directly contacted is permeable, i.e. infiltration coefficient.And infiltration coefficient is ground as asphalt paving and water-permeable cement concrete
The important indicator studied carefully, infiltration coefficient is under study for action in occupation of very important status.Work as in the test of seepy material infiltration coefficient
In, almost all of device is all to measure the infiltration coefficient of test specimen vertical direction, and remove in practice of construction kind, and most of rainwater is
It is laterally discharged into edge collecting gutter by road horizontal slope, it is therefore necessary to which the transverse drainage ability of seepy material is done further
Test and exploration, therefore the device for studying a kind of permeable mixture transverse drainage ability of Lab-evaluation is very necessary.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, it is horizontal to provide a kind of permeable mixture of Lab-evaluation
To the device and method of drainability, which can accurately evaluate the transverse drainage energy of permeable mixture
Power.
In order to achieve the above objectives, the device of the permeable mixture transverse drainage ability of Lab-evaluation of the present invention includes upper
Mould cylinder, lower die cylinder, spray head, water system, flowmeter and measuring cup；
The lower openings of upper mold cylinder are connected with the top opening of lower die cylinder, and upper cover plate and lower cover are provided in lower die cylinder
Plate, permeable compound test specimen to be measured is between upper cover plate and lower cover plate, and the two sides of permeable compound test specimen to be measured are respectively under
The first water gap is provided between the inner wall of mould cylinder and gap of catchmenting, a part of upper cover plate outer peripheral surface and the inner wall of lower die cylinder
Between have the second water gap, second water gap is connected with the first water gap, other portions of upper cover plate outer peripheral surface
Divide and be tightly connected between the inner wall of lower die cylinder, there is water outlet to stitch between a part of lower cover plate outer peripheral surface and the inner wall of lower die cylinder
Gap, wherein the water outlet gap is connected with gap of catchmenting, between the other parts of lower cover plate outer peripheral surface and the inner wall of lower die cylinder
It is tightly connected；
Several overflow ports are provided on the side wall of upper mold cylinder, spray head is located in upper mold cylinder and face upper cover plate, water system
It is connected through flowmeter with the water inlet of spray head；
The top opening of measuring cup is located at the underface of lower die cylinder outlet at bottom.
Water outlet and water inlet are provided on the side wall of lower die cylinder, wherein the water outlet face on lower die cylinder side wall is catchmented
Gap, the water inlet on lower die cylinder side wall are located at the lower section of lower cover plate, lead between the water outlet and water inlet on lower die cylinder side wall
It crosses hose to be connected, tachograph is provided on hose.
Water system includes water pump, water storage barrel and valve, wherein water pump is located in water storage barrel, and the outlet of water pump is through valve
And flowmeter is connected with spray head.
It further include pivoting support, wherein lower die cylinder is fixed on pivoting support.
It is connected between upper mold cylinder and lower die cylinder by bolt.
Each overflow port is sequentially distributed from top to bottom.
It is sealed between the inner wall of lower die cylinder and the outer peripheral surface of lower cover plate and the outer peripheral surface of upper cover plate by sealing rubber strip.
The height adjustment for adjusting angle between permeable compound test specimen to be measured and horizontal plane is provided on pivoting support
Screw.
The method of the permeable mixture transverse drainage ability of Lab-evaluation of the present invention the following steps are included:
1) permeable compound test specimen to be measured is prepared；
2) permeable compound test specimen to be measured is placed between upper cover plate and lower cover plate, and will be to be measured permeable by upper cover plate
Compound test specimen is pressed between upper cover plate and lower cover plate；
3) water system is opened, the water of water system output is sprayed on upper cover plate through spray head, then through the second watering slot
Gap enters in the first water gap, and permeates from the first water gap to permeable compound test specimen to be measured, and in gap of catchmenting
Measuring cup is placed at this time until the water surface of upper mold cylinder is flushed with overflow port through water outlet gap discharge lower die cylinder after middle collection
The underface of lower die cylinder bottom water outlet records and is flowed into the water Q of measuring cup in time t, then permeable compound test specimen to be measured
Transverse drainage ability k are as follows:
Wherein, L is percolation path, and A is seepage area, and △ h is between overflow port and permeable compound test specimen bottom to be measured
Distance.
The invention has the following advantages:
The device and method of the permeable mixture transverse drainage ability of Lab-evaluation of the present invention when specific operation, to
It surveys permeable compound test specimen to be held between upper cover plate and lower cover plate, between lower die cylinder and the two sides of permeable compound test specimen to be measured
It is provided with the first water gap and gap of catchmenting, the water that spray head sprays out is introduced into the first water gap, then permeates
It is flowed into gap of catchmenting across permeable compound test specimen to be measured, and eventually passes through measuring cup collection, by being flowed into record time t
The water Q of measuring cup, it is simple, convenient to calculate the transverse drainage ability k of permeable compound test specimen to be measured, with routine test
Be tightly combined, do not need that die trial is fabricated separately to make test specimen, using routine test test specimen can complete field measurement, do not have to test specimen
Any damage does not influence continuing to use for test specimen.
Further, the inclined degree of permeable compound test specimen to be measured is adjusted by height adjustment screw, is not gone the same way with test
The transverse drainage ability for encircleing permeable compound test specimen to be measured under the conditions of horizontal slope, makes test result be more in line with true road surface.
Detailed description of the invention
Fig. 1 is schematic diagram of the invention；
Fig. 2 is the top view of the invention when permeable compound test specimen 15 to be measured is cylindrical structure；
Fig. 3 is the top view of the invention when permeable compound test specimen 15 to be measured is cube structure.
Wherein, 1 it is upper mold cylinder, 2 be overflow port, 3 be bolt, 4 be lower die cylinder, 5 be upper cover plate, 6 be lower cover plate, 7 is stream
Fast table, 8 be hose, 9 be measuring cup, 10 be spray head, 11 be flowmeter, 12 be valve, 13 be water storage barrel, 14 be water pump, 15 for
Survey permeable compound test specimen, 16 be sealing rubber strip, 17 be height adjustment screw, 18 be pivoting support.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
With reference to Fig. 1, the device of the permeable mixture transverse drainage ability of Lab-evaluation of the present invention include upper mold cylinder 1,
Lower die cylinder 4, spray head 10, water system, flowmeter 11 and measuring cup 9；The lower openings of upper mold cylinder 1 and the top opening of lower die cylinder 4
It is connected, upper cover plate 5 and lower cover plate 6 is provided in lower die cylinder 4, permeable compound test specimen 15 to be measured is located at upper cover plate 5 and lower cover
Between plate 6, the two sides of permeable compound test specimen 15 to be measured be provided between the inner wall of lower die cylinder 4 respectively the first water gap and
It catchments gap, there is the second water gap, second water inlet between a part of 5 outer peripheral surface of upper cover plate and the inner wall of lower die cylinder 4
Gap is connected with the first water gap, is tightly connected between the other parts of 5 outer peripheral surface of upper cover plate and the inner wall of lower die cylinder 4,
There is water outlet gap between a part of 6 outer peripheral surface of lower cover plate and the inner wall of lower die cylinder 4, wherein the water outlet gap and the seam that catchments
Gap is connected, and is tightly connected between the other parts of 6 outer peripheral surface of lower cover plate and the inner wall of lower die cylinder 4；It is set on the side wall of upper mold cylinder 1
Several overflow ports 2 are equipped with, spray head 10 is located in upper mold cylinder 1 and face upper cover plate 5, and water system is through flowmeter 11 and spray head 10
Water inlet is connected；The top opening of measuring cup 9 is located at the underface of 4 outlet at bottom of lower die cylinder.
Water outlet and water inlet are provided on the side wall of lower die cylinder 4, wherein the water outlet face collection on 4 side wall of lower die cylinder
Water gap, the water inlet on 4 side wall of lower die cylinder are located at the lower section of lower cover plate 6, the water outlet and water inlet on 4 side wall of lower die cylinder it
Between be connected by hose 8, tachograph 7 is provided on hose 8.
Water system includes water pump 14, water storage barrel 13 and valve 12, wherein water pump 14 is located in water storage barrel 13, water pump 14
Outlet be connected through valve 12 and flowmeter 11 with spray head 10；The invention also includes pivoting supports 18, wherein lower die cylinder 4 is solid
Due on pivoting support 18.
It is connected between upper mold cylinder 1 and lower die cylinder 4 by bolt 3；Each overflow port 2 is sequentially distributed from top to bottom；Lower die cylinder 4
Inner wall and lower cover plate 6 outer peripheral surface and upper cover plate 5 outer peripheral surface between sealed by sealing rubber strip 16；On pivoting support 18
It is provided with the height adjustment screw 17 for adjusting angle between permeable compound test specimen 15 to be measured and horizontal plane.
Permeable compound test specimen 15 to be measured be marshal piece, gyratory compaction test specimen or hydrostatic profile test specimen, upper mold cylinder 1 with
It is provided with rubber seal between lower die cylinder 4, while sealing is tightened by bolt 3 between upper mold cylinder 1 and lower die cylinder 4；Upper cover plate 5
It is closely knit waterproof plate body with lower cover plate 6, wherein upper cover plate 5 is detachable.
With reference to Fig. 2 and Fig. 3, the shape and size of upper mold cylinder 1 and lower die cylinder 4 are carried out according to permeable compound test specimen 15 to be measured
It determines, permeable compound test specimen 15 to be measured can be rectangular or cylindrical structure, and permeable compound test specimen 15 to be measured is porous
Concrete test block.
The method of the permeable mixture transverse drainage ability of Lab-evaluation of the present invention the following steps are included:
1) permeable compound test specimen 15 to be measured is prepared；
2) permeable compound test specimen 15 to be measured is placed between upper cover plate 5 and lower cover plate 6, and will be to by upper cover plate 5
Permeable compound test specimen 15 is surveyed to be pressed between upper cover plate 5 and lower cover plate 6；
3) water system is opened, the water of water system output is sprayed on upper cover plate 5 through spray head 10, then through the second water inlet
Gap enters in the first water gap, and permeates from the first water gap to permeable compound test specimen 15 to be measured, and catchmenting
Lower die cylinder 4 is discharged through water outlet gap after collecting in gap, until the water surface of upper mold cylinder 1 is flushed with overflow port 2, at this time by measuring cup
9 are placed into the underface of 4 bottom water outlet of lower die cylinder, record the water Q that measuring cup 9 is flowed into time t, then permeable mixing to be measured
Expect the transverse drainage ability k of test specimen 15 are as follows:
Wherein, L is percolation path, and A is seepage area, △ h be overflow port 2 and permeable 15 bottom of compound test specimen to be measured it
Between distance, when permeable compound test specimen 15 to be measured is cylindrical structure, then L is V/A, and A=π dD/2, d are to be measured permeable mixed
The diameter of material test specimen 15 is closed, D is the height of permeable compound test specimen 15 to be measured；When permeable compound test specimen 15 to be measured is cube
When structure, then L is side length, A=L2。
The foregoing is merely the application methods of the application, are not intended to limit this application, for the technology of this field
For personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (9)
1. a kind of device of the permeable mixture transverse drainage ability of Lab-evaluation, which is characterized in that including upper mold cylinder (1), lower die
Cylinder (4), spray head (10), water system, flowmeter (11) and measuring cup (9)；
The lower openings of upper mold cylinder (1) are connected with the top opening of lower die cylinder (4), are provided with upper cover plate (5) in lower die cylinder (4)
And lower cover plate (6), permeable compound test specimen (15) to be measured are located between upper cover plate (5) and lower cover plate (6), permeable mixture to be measured
The two sides of test specimen (15) are provided with the first water gap and gap of catchmenting between the inner wall of lower die cylinder (4) respectively, upper cover plate (5)
There are the second water gap, second water gap and the first water inlet between a part of outer peripheral surface and the inner wall of lower die cylinder (4)
Gap is connected, and is tightly connected between the other parts of upper cover plate (5) outer peripheral surface and the inner wall of lower die cylinder (4), lower cover plate (6) is outside
There is water outlet gap between a part of circumferential surface and the inner wall of lower die cylinder (4), wherein the water outlet gap is connected with gap of catchmenting
It is logical, it is tightly connected between the other parts of lower cover plate (6) outer peripheral surface and the inner wall of lower die cylinder (4)；
It is provided on the side wall of upper mold cylinder (1) several overflow ports (2), spray head (10) is located in upper mold cylinder (1) and face upper cover plate
(5), water system is connected through flowmeter (11) with the water inlet of spray head (10)；
The top opening of measuring cup (9) is located at the underface of lower die cylinder (4) outlet at bottom.
2. the device of the permeable mixture transverse drainage ability of Lab-evaluation according to claim 1, which is characterized in that lower die
Water outlet and water inlet are provided on the side wall of cylinder (4), wherein the water outlet face on lower die cylinder (4) side wall is catchmented gap, under
Water inlet on mould cylinder (4) side wall is located at the lower section of lower cover plate (6), between the water outlet and water inlet on lower die cylinder (4) side wall
It is connected by hose (8), tachograph (7) is provided on hose (8).
3. the device of the permeable mixture transverse drainage ability of Lab-evaluation according to claim 1, which is characterized in that supply water
System includes water pump (14), water storage barrel (13) and valve (12), wherein water pump (14) is located in water storage barrel (13), water pump (14)
Outlet be connected through valve (12) and flowmeter (11) with spray head (10).
4. the device of the permeable mixture transverse drainage ability of Lab-evaluation according to claim 1, which is characterized in that also wrap
Include pivoting support (18), wherein lower die cylinder (4) is fixed on pivoting support (18).
5. the device of the permeable mixture transverse drainage ability of Lab-evaluation according to claim 1, which is characterized in that upper mold
It is connected between cylinder (1) and lower die cylinder (4) by bolt (3).
6. the device of the permeable mixture transverse drainage ability of Lab-evaluation according to claim 1, which is characterized in that each to overflow
Head piece (2) is sequentially distributed from top to bottom.
7. the device of the permeable mixture transverse drainage ability of Lab-evaluation according to claim 1, which is characterized in that lower die
It is sealed between the inner wall of cylinder (4) and the outer peripheral surface of lower cover plate (6) and the outer peripheral surface of upper cover plate (5) by sealing rubber strip (16).
8. the device of the permeable mixture transverse drainage ability of Lab-evaluation according to claim 1, which is characterized in that hinged
The height adjustment screw for adjusting angle between permeable compound test specimen (15) to be measured and horizontal plane is provided on support (18)
(17)。
9. a kind of method of the permeable mixture transverse drainage ability of Lab-evaluation, which comprises the following steps:
1) permeable compound test specimen (15) to be measured is prepared；
2) permeable compound test specimen (15) to be measured is placed between upper cover plate (5) and lower cover plate (6), and passes through upper cover plate (5)
Permeable compound test specimen (15) to be measured is pressed between upper cover plate (5) and lower cover plate (6)；
3) water system is opened, the water of water system output is sprayed on upper cover plate (5) through spray head (10), then through the second water inlet
Gap enters in the first water gap, and permeates from the first water gap to permeable compound test specimen (15) to be measured, and collecting
Through water outlet gap discharge lower die cylinder (4) after being collected in water gap, until the water surface of upper mold cylinder (1) is flushed with overflow port (2), this
When measuring cup (9) is placed into the underface of lower die cylinder (4) bottom water outlet, record the water Q that measuring cup (9) is flowed into time t,
The then transverse drainage ability k of permeable compound test specimen (15) to be measured are as follows:
Wherein, L is percolation path, and A is seepage area, △ h be overflow port (2) and permeable compound test specimen (15) bottom to be measured it
Between distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910672926.8A CN110296929B (en) | 2019-07-24 | 2019-07-24 | Device and method for indoor evaluation of transverse drainage capacity of water-permeable mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910672926.8A CN110296929B (en) | 2019-07-24 | 2019-07-24 | Device and method for indoor evaluation of transverse drainage capacity of water-permeable mixture |
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| Publication Number | Publication Date |
|---|---|
| CN110296929A true CN110296929A (en) | 2019-10-01 |
| CN110296929B CN110296929B (en) | 2024-08-23 |
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| CN201910672926.8A Active CN110296929B (en) | 2019-07-24 | 2019-07-24 | Device and method for indoor evaluation of transverse drainage capacity of water-permeable mixture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112394021A (en) * | 2021-01-20 | 2021-02-23 | 西南交通大学 | Indoor testing arrangement of permeable pavement structure osmotic coefficient |
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| Publication number | Publication date |
|---|---|
| CN110296929B (en) | 2024-08-23 |
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