CN107328696A - A kind of novel road-face creepage instrument and its measuring method - Google Patents
A kind of novel road-face creepage instrument and its measuring method Download PDFInfo
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- CN107328696A CN107328696A CN201710017652.XA CN201710017652A CN107328696A CN 107328696 A CN107328696 A CN 107328696A CN 201710017652 A CN201710017652 A CN 201710017652A CN 107328696 A CN107328696 A CN 107328696A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000011888 foil Substances 0.000 claims abstract description 16
- 238000012360 testing method Methods 0.000 claims abstract description 14
- 230000011664 signaling Effects 0.000 claims description 9
- 239000002390 adhesive tape Substances 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 238000011156 evaluation Methods 0.000 claims description 6
- 238000001764 infiltration Methods 0.000 claims description 4
- 230000008595 infiltration Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000005030 aluminium foil Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 2
- 241001274660 Modulus Species 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 7
- 230000003111 delayed effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002699 waste material 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
-
- 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
- G01N2015/0853—Investigating permeability, pore-volume, or surface area of porous materials by electrical capacitance measurement
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- Chemical & Material Sciences (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)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses a kind of novel road-face creepage instrument and its measuring method, including water creep appearance body, capacitance type liquid level sensing unit, message handler unit；Water creep appearance body includes base, at least two supports, upper plate, lower roof plate, graduated cylinder, conduit and valve；Support sequentially runs through upper plate and lower roof plate from top to bottom in vertical direction, and the bottom of support is connected with base, and the bottom of base is provided with cavity；The bottom of graduated cylinder is fixed on lower roof plate；The bottom of conduit connection graduated cylinder and the cavity of base bottom；Valve is on conduit；Capacitance type liquid level sensing unit includes foil electrode and capacitance level transducer, and foil electrode is on the side wall of graduated cylinder, and capacitance level transducer is connected with foil electrode and message handler unit respectively by wire.The present invention need not artificially read the reading of liquid level scale and stopwatch in detection process, can be prevented effectively from artificial reading it is delayed caused by error, and testing staff's digital independent caused detected artifacts again not in time.
Description
Technical field
The present invention relates to a kind of pavement seepage coefficient detecting instrument, and in particular to a kind of novel road-face creepage instrument.
Background technology
In general bituminous paving should be closely knit and fluid-tight, but if bituminous paving infiltration is excessive, road surface
Water will penetrate into basic unit or roadbed downwards, cause road surface bearing capacity reduction, cause pavement structure to destroy, therefore, to make
Asphalt pavement structure has good water stability, should strictly control the seepage of water of bituminous paving.According to China's related specifications, drip
The permeability performance on blue or green road surface is weighed by infiltration coefficient, and bituminous paving infiltration coefficient method of testing（T0971-2008）
Middle regulation need to be down at 100ml scales in liquid level starts timing, and, if liquid level decrease speed is very fast, every 60s records once
500ml graduation marks are reached in 180s, then need to record time when reaching 500ml graduation marks.
In whole detection process：Liquid level starts timing, records a liquid level reading every 60s when reaching 100ml graduation marks
Stop watch figures when counting, reaching 500ml graduation marks, these readings are carried out during manual time-keeping and liquid level decline, can not
The presence hysteresis quality avoided, introduces larger human error, causes testing result distortion.If in addition, a certain process reading is not timely
Recorded, then need to re-start experiment, because detection early stage has the processes such as road cleaning, sealing, exhaust, detected again
When inevitably waste more time, reduce detection efficiency.
The content of the invention
In view of problems faced in above-mentioned detection process, the invention provides a kind of novel road-face creepage instrument, in actual inspection
During survey, only testing inspection just need to can be completed by sub-screen associated button, it is not necessary to artificial in detection process to read liquid level
The reading of scale and stopwatch, can be prevented effectively from the delayed caused error of artificial reading, and testing staff's digital independent is not in time
Caused detected artifacts again, with accuracy it is high, easy to operate, it is quick the features such as, with preferable application prospect.
Above-mentioned technical purpose is realized, above-mentioned technique effect is reached, the present invention is achieved through the following technical solutions：
A kind of novel road-face creepage instrument, including water creep appearance body, capacitance type liquid level sensing unit, message handler unit, be used for
The power subsystem of power supply；The water creep appearance body include base, at least two supports, upper plate, lower roof plate, graduated cylinder, conduit and
Valve；The support sequentially runs through upper plate and lower roof plate from top to bottom in vertical direction, and the bottom of support is connected with base, bottom
The bottom of seat is provided with cavity；The bottom of the graduated cylinder is fixed on lower roof plate；Under the bottom and base of the conduit connection graduated cylinder
The cavity in portion；The valve controls the circulation of liquid in conduit on conduit；The capacitance type liquid level sensing unit includes aluminium
Foil electrode and capacitance level transducer, foil electrode is on the side wall of graduated cylinder, and capacitance level transducer is located at upper plate
On, and capacitance level transducer is connected with foil electrode and message handler unit respectively by wire.
Further, described information processor unit include display device, programmable logic controller (PLC) PLC chip and
The first singlechip chip, second singlechip chip, the first A/D analog-digital converters, the 2nd A/D moulds in display device
Number converter and the 3rd A/D analog-digital converters, display device be arranged on upper plate on, and with programmable logic controller (PLC) PLC
Chip is connected by wire, and button area and viewing area are divided on display device, and button area includes shift knob, first threshold
Button, Second Threshold button and testing button；The shift knob is connected by wire with power subsystem, controls novel pavement
The electrical condition of water creep appearance；Input and electricity of the first threshold button by wire respectively with the first A/D analog-digital converters
The output end of appearance formula level sensing unit is connected, the output ends of the first A/D analog-digital converters respectively with the first singlechip chip
It is connected with programmable logic controller (PLC) PLC chip；The Second Threshold button by wire respectively with the 2nd A/D analog-digital converters
Input and the output end of capacitance type liquid level sensing unit be connected, the output ends of the 2nd A/D analog-digital converters is respectively with
Two singlechip chips are connected with programmable logic controller (PLC) PLC chip；The testing button by wire respectively with the 3rd A/D moulds
The input of number converter is connected with the output end of capacitance type liquid level sensing unit, the output end of the 3rd A/D analog-digital converters
It is connected with the first singlechip chip；The signal value that first singlechip chip receives the output of the 3rd A/D analog-digital converters is low
When the first threshold H of setting, the signal value is sent to programmable logic controller (PLC) PLC chip and second singlechip chip；
When the signal value that the second singlechip chip receives the output of the first chip is equal to the Second Threshold L values of setting, by the signal
Value is sent to programmable logic controller (PLC) PLC chip, and control programmable logic controller (PLC) PLC chip is stopped；It is programmable to patrol
The output end for collecting controller PLC chip is connected with display device.
Further, the first threshold H is liquid level corresponding capacitance signalling values when higher than 100ml graduation marks；Second
L liquid levels of threshold value corresponding capacitance signalling values when less than 500ml graduation marks；Wherein, liquid level is more than 100ml graduation marks
When（When i.e. liquid level value is between 0-100ml）, the value all same that capacitance type liquid level sensing unit is collected, liquid level is low
In after 500ml graduation marks, the value all same that capacitance type liquid level sensing unit is collected.The scale value on graduated cylinder in the present invention is
100ml is located above 500ml scale values, i.e., scale value becomes larger from the top of graduated cylinder to bottom.
Further, the viewing area includes and 60s water percolating capacities, 120s water percolating capacities, 180s water percolating capacities and 100ml-500ml
Used time corresponding four viewing areas, wherein 60s water percolating capacities, 120s water percolating capacities, the corresponding viewing area of 180s water percolating capacities is used for
Water percolating capacity when starting 60s, 120s and 180s after metering is shown in, the corresponding viewing areas of 100ml-500ml are used to show liquid
Face from 100ml drop to 500ml when the time used.
Further, the upper plate is annular, and its material is steel moulding material, is fixed on cantilever tip；The upper top
Plate is provided with through hole, for being passed through for graduated cylinder, and the size of through hole is more than the size of graduated cylinder.
Further, the foil electrode includes two aluminum foil and adhesive tapes, and the length of aluminum foil and adhesive tape is equal to 100ml on graduated cylinder and carved
To the length at 500ml scales at degree, two aluminum foil and adhesive tapes are symmetrically close to graduated cylinder on the wall of side by the adhesive sticker that insulate, institute
State the bottom that capacitance level transducer is arranged on upper plate.
Further, one end of the aluminum foil and adhesive tape is overlapping with the 100ml graduation marks on graduated cylinder, on the other end and graduated cylinder
500ml graduation marks at it is overlapping.
A kind of measuring method of novel road-face creepage instrument, comprises the following steps：
S1：Liquid is passed through into graduated cylinder；
S2：Threshold value setting is carried out to water creep appearance, is specially：When the height of liquid is reached at the 100ml graduation marks of graduated cylinder, start
First threshold button, the capacitance signalling values of capacitance type liquid level sensing unit output pass through the first A/D moulds as first threshold H
Number converter is respectively transmitted to the first singlechip chip and programmable logic controller (PLC) PLC chip, the first singlechip chip and can
Programmed logic controller PLC chip preserves first threshold H；When the height of liquid is reached at the 500ml graduation marks of graduated cylinder, start
Second Threshold button, the capacitance signalling values of capacitance type liquid level sensing unit output pass through the 2nd A/D moulds as Second Threshold L
Number converter is respectively transmitted to second singlechip chip and programmable logic controller (PLC) PLC chip, second singlechip chip and can
Programmed logic controller PLC chip preserves Second Threshold L；
S3：Start testing button, being raised to 500ml from 100ml graduation marks using the real-time monitoring variable of capacitance type liquid level sensing unit carves
The height and output capacitance signal value of liquid level in the graduated cylinder between line are spent, and passes through the 3rd A/D analog-digital converters and the first monolithic
Movement piece is respectively transmitted to second singlechip chip and programmable logic controller (PLC) PLC chip；Programmable logic controller (PLC) PLC cores
Piece carries out calculating water percolating capacity Y according to following formula：
Y=400/(H-L)*(H-X)
Wherein, X be test process in capacitance type liquid level sensing unit output capacitance signalling values, 400 be liquid level under 100ml
It is down to water percolating capacity during 500ml；
S4：After programmable logic controller (PLC) PLC chip receives the signal that the first singlechip chip is sent, automatic start timing
Program, and once automatic evaluation, and evaluation is respectively displayed on display device is carried out to Y value every the time of setting, when
Programmable logic controller (PLC) PLC chip receives the signal value of second singlechip chip output for after Second Threshold L, timing is temporary
Stop, display device show liquid level from 100ml drop to 500ml when the time used.
Further, the step S4 also includes：First singlechip chip receives the output of the 3rd A/D analog-digital converters
When signal value is less than first threshold H values, the signal value is sent to programmable logic controller (PLC) PLC device and second singlechip core
Piece, now programmable logic controller (PLC) PLC device start timing；The second singlechip chip receives the first singlechip chip
When the signal value of output is equal to Second Threshold L values, the signal value is sent to programmable logic controller (PLC) PLC chip, timing is temporary
Stop.
Further, the time set is 60s, and preceding 180s evaluation is respectively displayed on 60s on display device
Water percolating capacity, 120s water percolating capacities, at the corresponding viewing area of 180s water percolating capacities；When programmable logic controller (PLC) PLC chip is received
After the signal value of second singlechip chip output is Second Threshold L, timing pause TP, and in the 100ml-500ml of display device
Shown at corresponding viewing area liquid level from 100ml drop to 500ml when the time used.
Beneficial effects of the present invention：
A kind of novel road-face creepage instrument of the present invention, during actually detected, just need to can only be completed by sub-screen associated button
Testing inspection, it is not necessary to the artificial reading for reading liquid level scale and stopwatch in detection process, can be prevented effectively from artificial reading stagnant
Caused error afterwards, and testing staff's digital independent caused detected artifacts again not in time.Therefore, the present invention has accurate
The features such as property is high, easy to operate, quick, with preferable application prospect.
Brief description of the drawings
Fig. 1 is novel road-face creepage instrument apparatus structure schematic diagram；
Fig. 2 is the upper plate structural representation of novel road-face creepage instrument device；
Fig. 3 is the screen display schematic diagram of novel road-face creepage instrument device；
Fig. 4 is novel road-face creepage instrument each unit circuit connection diagram.
Claims (10)
1. a kind of novel road-face creepage instrument, it is characterised in that：At water creep appearance body, capacitance type liquid level sensing unit, information
Manage device unit, the power subsystem for power supply；The water creep appearance body includes base, at least two supports, upper plate, lower tops
Plate, graduated cylinder, conduit and valve；The support sequentially runs through upper plate and lower roof plate, the bottom of support from top to bottom in vertical direction
End is connected with base, and the bottom of base is provided with cavity；The bottom of the graduated cylinder is fixed on lower roof plate；The conduit connects graduated cylinder
Bottom and base bottom cavity；The valve controls the circulation of liquid in conduit on conduit；The capacitance type liquid level
Sensing unit includes foil electrode and capacitance level transducer, and foil electrode is on the side wall of graduated cylinder, and capacitance type liquid level is passed
Sensor on the upper plate, and capacitance level transducer by wire respectively with foil electrode and message handler unit phase
Even.
2. a kind of novel road-face creepage instrument according to claim 1, it is characterised in that：Described information processor unit includes
Display device, programmable logic controller (PLC) PLC chip and the first singlechip chip in display device, second
Singlechip chip, the first A/D analog-digital converters, the 2nd A/D analog-digital converters and the 3rd A/D analog-digital converters, display device
It is connected on upper plate, and with programmable logic controller (PLC) PLC chip by wire, button is divided on display device
Area and viewing area, button area include shift knob, first threshold button, Second Threshold button and testing button；The switch is pressed
Button is connected by wire with power subsystem, controls the electrical condition of novel road-face creepage instrument；The first threshold button passes through
Wire is connected with the input of the first A/D analog-digital converters and the output end of capacitance type liquid level sensing unit respectively, the first A/D
The output end of analog-digital converter is connected with the first singlechip chip and programmable logic controller (PLC) PLC chip respectively；Described second
Input and the output end phase of capacitance type liquid level sensing unit of the threshold button by wire respectively with the 2nd A/D analog-digital converters
Connection, the output ends of the 2nd A/D analog-digital converters respectively with second singlechip chip and programmable logic controller (PLC) PLC chip phase
Even；The testing button by wire respectively with the inputs of the 3rd A/D analog-digital converters and capacitance type liquid level sensing unit
Output end is connected, and the output end of the 3rd A/D analog-digital converters is connected with the first singlechip chip；First singlechip chip
When receiving the signal value of the 3rd A/D analog-digital converters output less than the first threshold H set, the signal value, which is sent to, to be compiled
Journey logic controller PLC chip and second singlechip chip；The second singlechip chip receives the letter of the first chip output
Number value equal to setting Second Threshold L values when, the signal value is sent to programmable logic controller (PLC) PLC chip, control can be compiled
Journey logic controller PLC chip is stopped；The output end of programmable logic controller (PLC) PLC chip is connected with display device.
3. a kind of novel road-face creepage instrument according to claim 2, it is characterised in that：The first threshold H is that liquid level exists
Corresponding capacitance signalling values during higher than 100ml graduation marks；Second Threshold L is liquid level corresponding electricity when less than 500ml graduation marks
Hold signal value；Wherein, when liquid level is more than 100ml graduation marks, the value all same that capacitance type liquid level sensing unit is collected,
Liquid level is less than after 500ml graduation marks, the value all same that capacitance type liquid level sensing unit is collected.
4. a kind of novel road-face creepage instrument according to claim 2, it is characterised in that：The viewing area includes oozing with 60s
Water, 120s water percolating capacities, 180s water percolating capacities and 100ml-500ml used times corresponding four viewing areas, wherein 60s water percolating capacities,
120s water percolating capacities, the corresponding viewing area of 180s water percolating capacities are used to be shown in infiltration when starting 60s, 120s and 180s after metering
Amount, the corresponding viewing areas of 100ml-500ml be used for show liquid level from 100ml graduation marks drop to 500ml graduation marks when it is used
Time.
5. a kind of novel road-face creepage instrument according to claim 1, it is characterised in that：The upper plate is annular, its
Material is steel moulding material, is fixed on cantilever tip；The upper plate is provided with through hole, for being passed through for graduated cylinder, the size of through hole
More than the size of graduated cylinder.
6. a kind of novel road-face creepage instrument according to claim 1, it is characterised in that：The foil electrode includes two aluminium
Foil belt, the length of aluminum foil and adhesive tape is equal on graduated cylinder at 100ml scales to the length at 500ml scales, two aluminium foil glue band logicals
Cross insulation adhesive sticker and be symmetrically close to graduated cylinder on the wall of side, the capacitance level transducer is arranged on the bottom of upper plate.
7. a kind of novel road-face creepage instrument according to claim 6, it is characterised in that：One end of the aluminum foil and adhesive tape and amount
Overlapping at 100ml graduation marks on cylinder, the other end is overlapping with the 500ml graduation marks on graduated cylinder.
8. a kind of measuring method of novel road-face creepage instrument, it is characterised in that：Comprise the following steps：
S1：Liquid is passed through into graduated cylinder, shift knob is pressed；
S2：Threshold value setting is carried out to water creep appearance, is specially：When 100ml graduation mark of the liquid level in graduated cylinder, start the first threshold
It is worth button, the capacitance signalling values of capacitance type liquid level sensing unit output pass through the first A/D analog-to-digital conversions as first threshold H
Device is respectively transmitted to the first singlechip chip and programmable logic controller (PLC) PLC chip, and the first singlechip chip is patrolled with programmable
Collect controller PLC chip and preserve first threshold H；When the height of liquid is reached at the 500ml graduation marks of graduated cylinder, start the second threshold
It is worth button, the capacitance signalling values of capacitance type liquid level sensing unit output pass through the 2nd A/D analog-to-digital conversions as Second Threshold L
Device is respectively transmitted to second singlechip chip and programmable logic controller (PLC) PLC chip, and second singlechip chip is patrolled with programmable
Collect controller PLC chip and preserve Second Threshold L；
S3：Tested, be specially：Start testing button, carved using the real-time monitoring variable of capacitance type liquid level sensing unit from 100ml
Degree line drops to the height and output capacitance signal value of liquid level in the graduated cylinder between 500ml graduation marks, and passes through the 3rd A/D moduluses
Converter and the first singlechip chip are respectively transmitted to second singlechip chip and programmable logic controller (PLC) PLC chip；It can compile
Journey logic controller PLC chip carries out calculating water percolating capacity Y according to following formula：
Y=400/(H-L)*(H-X)
Wherein, X be test process in capacitance type liquid level sensing unit output capacitance signalling values, 400 be liquid level under 100ml
It is down to water percolating capacity during 500ml；
S4：After programmable logic controller (PLC) PLC chip receives the signal that the first singlechip chip is sent, automatic start timing
Program, and once automatic evaluation, and evaluation is respectively displayed on display device is carried out to Y value every the time of setting, when
Programmable logic controller (PLC) PLC chip receives the signal value of second singlechip chip output for after Second Threshold L, timing is temporary
Stop, display device show liquid level from 100ml drop to 500ml when the time used.
9. a kind of measuring method of novel road-face creepage instrument according to claim 8, it is characterised in that：The step S4 is also
Including：When the signal value that first singlechip chip receives the output of the 3rd A/D analog-digital converters is less than first threshold H values, by this
Signal value is sent to programmable logic controller (PLC) PLC device and second singlechip chip, and now programmable logic controller (PLC) PLC is filled
Put beginning timing；The signal value that the second singlechip chip receives the output of the first singlechip chip is equal to Second Threshold L values
When, the signal value is sent to programmable logic controller (PLC) PLC chip, timing pause TP.
10. a kind of measuring method of novel road-face creepage instrument according to claim 8, it is characterised in that：The setting
Time is 60s, and preceding 180s evaluation is respectively displayed on 60s water percolating capacities on display device, 120s water percolating capacities, 180s water percolating capacities
At corresponding viewing area；When the signal value that programmable logic controller (PLC) PLC chip receives the output of second singlechip chip is
After Second Threshold L, timing pause TP, and show at the corresponding viewing areas of 100ml-500ml of display device liquid level from
100ml drops to the time used during 500ml.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710017652.XA CN107328696B (en) | 2017-01-11 | 2017-01-11 | Novel pavement water seepage instrument and measuring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710017652.XA CN107328696B (en) | 2017-01-11 | 2017-01-11 | Novel pavement water seepage instrument and measuring method thereof |
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| CN107328696A true CN107328696A (en) | 2017-11-07 |
| CN107328696B CN107328696B (en) | 2023-09-05 |
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| CN108572130A (en) * | 2018-04-20 | 2018-09-25 | 江苏燕宁工程咨询有限公司 | A kind of pavement seepage instrument for road construction monitoring |
| CN110687031A (en) * | 2019-10-25 | 2020-01-14 | 郑卫华 | Intelligent pavement water seepage detection vehicle |
| CN112240862A (en) * | 2020-09-28 | 2021-01-19 | 广东冠粤路桥有限公司 | Detection device and detection method for detecting drainage coefficient of drainage asphalt pavement |
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| CN108572130A (en) * | 2018-04-20 | 2018-09-25 | 江苏燕宁工程咨询有限公司 | A kind of pavement seepage instrument for road construction monitoring |
| CN108572130B (en) * | 2018-04-20 | 2021-04-06 | 江苏燕宁工程咨询有限公司 | A road surface infiltration appearance for road construction monitoring |
| CN110687031A (en) * | 2019-10-25 | 2020-01-14 | 郑卫华 | Intelligent pavement water seepage detection vehicle |
| CN112240862A (en) * | 2020-09-28 | 2021-01-19 | 广东冠粤路桥有限公司 | Detection device and detection method for detecting drainage coefficient of drainage asphalt pavement |
| CN112240862B (en) * | 2020-09-28 | 2022-06-17 | 广东冠粤路桥有限公司 | Detection device and detection method for detecting drainage coefficient of drainage asphalt pavement |
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