CN209459692U - A kind of temperature stress monitoring device of road surface structare layer - Google Patents
A kind of temperature stress monitoring device of road surface structare layer Download PDFInfo
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- CN209459692U CN209459692U CN201822121376.4U CN201822121376U CN209459692U CN 209459692 U CN209459692 U CN 209459692U CN 201822121376 U CN201822121376 U CN 201822121376U CN 209459692 U CN209459692 U CN 209459692U
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- road surface
- conducting wire
- structare layer
- surface structare
- temperature stress
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Abstract
The utility model relates to road monitoring technical fields, refer in particular to a kind of temperature stress monitoring device of road surface structare layer, including measuring box, pre- PE conducting wire fairlead, conducting wire and the data collector being embedded in road surface structare layer being embedded in road surface structare layer in advance, sensor is equipped in measuring box, sensor is connected to one end of conducting wire, and the other end of conducting wire is connected to data collector after passing through PE conducting wire fairlead.Using such structure setting, can simultaneously each road surface structare layer of real-time monitoring temperature and temperature stress variation, the temperature for capableing of accurate road pavement arbitrary structures layer is monitored with temperature stress, effective approach is provided to obtain temperature stress situation suffered by the road surface structare layer of different operating conditions and area, also the relationship between the temperature stress and temperature change of research road surface structare layer lays solid data basis, also provides data supporting further to correct existing road surface mechanical analysis and numerical simulation.
Description
Technical field
The utility model relates to road monitoring technical fields, refer in particular to a kind of temperature stress monitoring device of road surface structare layer.
Background technique
The road surface types in China are mainly asphalt concrete pavement and cement stabilized type base layer structure, and asphalt and
Cement treated material is temperature-sensitive material, especially cement stabilized soil material, these materials are easily by external environment temperature
Degree changes and generates heat expansion or shrinkage, and generates larger temperature stress due to pavement structure internal constraint, when the temperature of generation
Stress will make pavement structure generate destruction when excessive, unfavorable consequence is caused to the service performance of road.
Each structure sheaf in road surface since the performance for the temperature stress road pavement that temperature change generates has highly important influence,
The Temperature Distribution of practical road surface structare layer and generated stress situation are sufficiently complex, this makes the temperature that must obtain pavement structure
Stress is very difficult.Currently, the regularity of distribution in the temperature field of road pavement structure sheaf has carried out a large amount of research, but become for temperature
Change in terms of being confined to theoretical calculation analysis and numerical simulation with the relationship of road surface structare layer temperature stress more.In addition, being supervised in road
In terms of survey technology, the temperature humidity monitoring technology of road pavement structure is more mature at present, but existing in road surface structare layer temperature stress
The hardly seen development of field monitoring aspect, is not applicable to the monitoring instrument and method of road surface structare layer temperature stress specially yet.
Simultaneously as road structure layer is also influenced by front and back of constructing, if directlying adopt sensor measurement is not only not achieved monitoring effect,
Also easily cause sensor degradation.
Utility model content
In view of the above problems, the utility model provides a kind of temperature stress monitoring device of road surface structare layer, Ke Yitong
When each road surface structare layer of real-time monitoring temperature and temperature stress variation, be capable of the temperature and temperature of accurate road pavement arbitrary structures layer
Degree stress is monitored, and provides effective way to obtain temperature stress situation suffered by the road surface structare layer of different operating conditions and area
Diameter, also for study road surface structare layer temperature stress and temperature change between relationship lay solid data basis, also for into
One step corrects existing road surface mechanical analysis and numerical simulation provides data supporting.
To achieve the goals above, the technical solution of the utility model application is as follows:
A kind of temperature stress monitoring device of road surface structare layer, including the measuring box, pre-buried being embedded in road surface structare layer in advance
In being equipped with sensor in PE conducting wire fairlead, conducting wire and data collector in road surface structare layer, measuring box, sensor is connected to
One end of conducting wire, the other end of conducting wire are connected to data collector after passing through PE conducting wire fairlead.
Furthermore, the bottom plate of the measuring box is equipped with the vertical columns that can be inserted into road surface structare layer, measuring box
Top be equipped with arch-shaped steel plate, the both ends of arch-shaped steel plate are respectively equipped with scalable arch sheet, the bottom plate both ends difference of measuring box
Perpendicular side plate and vertical front and back are equipped with equipped with the base platform with slideway, between scalable arch sheet and the base platform with slideway
The bottom of plate, perpendicular side plate is equipped with bottom pulley.
Furthermore, light spring is equipped between the perpendicular side plate and the side plate of measuring box.
Furthermore, the sensor uses Multifunctional resistance type displacement meter, and one end of sensor is equipped with measuring probe,
Measuring probe contacts in the perpendicular side plate of measuring box side, and the other end of sensor is connected to one end of conducting wire, data acquisition
Device is equipped with connector, and the other end of conducting wire is connected to connecing on data collector by end plug after PE conducting wire fairlead
Head.
Furthermore, fixed bearing platform is equipped in the measuring box, fixed bearing platform is equipped with locating groove, covers disposed on sensor
There is fixed lobe, sensor is by fixed lobe in the locating groove in fixed bearing platform.
Furthermore, the sensor fixed bearing platform is equipped with the circular opening that can be convenient for cabling.
Furthermore, the PE conducting wire fairlead uses the Telescopic flexible pipe being made of more piece short tube.
Furthermore, the vertical columns use foldable thin steel column.
The utility model the utility model has the advantages that
1) compared with prior art, the measuring box of monitoring device described in the utility model can be direct by pre-buried mode
It is laid in pavement structure, the procedures of establishment is simple to operation；
2) by by sensor identical on two simultaneously be placed in measuring box, not only can to avoid in conventional measuring methods because
Destruction in pavement construction and after construction to sensor, caused by being also greatly reduced measurement process because of pavement structure environmental change
Monitoring variability, meanwhile, the data of two sensors each other in parallel monitoring experiment, mutually correction, checking computations, more guarantee
The validity and precision of monitoring；
3) compared with prior art, sensor described in the utility model is in such a way that strain gauge transducer measures stress
Difference carries out field monitoring by using Multifunctional resistance type displacement meter and makes measurement process variability small, and measurement result is by it
The influence of its factor is small, can measure the true stress situation of road surface structare layer generation well；
4) being connected with measuring box as conducting wire fairlead by managing scalable PE, being placed in conducting wire in protection pipe always,
Further improve the validity of sensor；
5) automatic collecting system is used, keeps data collection task more efficient, considerably reduces manpower when monitoring
Material resources expand the application scenarios of pavement monitoring work.
Detailed description of the invention
Fig. 1 is monitoring device overall structure diagram；
Fig. 2 is that monitoring device monitors diagram in pavement structure.
Fig. 3 is measuring box configuration diagram；
Fig. 4 is measuring box plan view；
Fig. 5 is PE conducting wire fairlead configuration diagram；
Fig. 6 is sensor structure diagram；
Fig. 7 is data collector configuration diagram.
1. measuring box；2.PE conducting wire fairlead；3. conducting wire；4. data collector；5. vertical columns；6. arch-shaped steel plate；7.
Fixed bearing platform；70. locating groove；8. sensor；9. scalable arch sheet；10. perpendicular side plate；11. vertical front and rear panel；12. band
The base platform of slideway；13. bottom pulley；14. light spring；15. circular opening；16. measuring probe；17. connector channel；
18. end plug；19. fixed lobe.
Specific embodiment
The technical solution of the utility model is illustrated with embodiment with reference to the accompanying drawing.
As shown in Figures 1 to 7, the temperature stress monitoring device of a kind of road surface structare layer described in the utility model, including it is pre-
The measuring box 1 being embedded in road surface structare layer, the PE conducting wire fairlead 2, conducting wire 3 and the data collector that are embedded in road surface structare layer in advance
4, measuring box 1 is interior to be equipped with sensor 8, and sensor 8 is connected to one end of conducting wire 3, and the other end of conducting wire 3 passes through PE conducting wire fairlead
Data collector 4 is connected to after 2.The above constitutes the utility model basic structure.
The utility model uses such structure setting, is measured by 1 road pavement structure sheaf of measuring box, the number of measurement
It is collected and stores according to data collector 4 is transmitted to by conducting wire 3, in practical application, data described in the utility model are adopted
Storage 4 can acquire and store the temperature of sensor 8 and stress variation situation in road surface structare layer, then by long-range reception system
The monitoring data at scene are obtained in real time, are provided with to obtain temperature stress situation suffered by the road surface structare layer of different operating conditions and area
The approach of effect, also the relationship between the temperature stress and temperature change to study road surface structare layer lays solid data basis,
Also data supporting is provided further to correct existing road surface mechanical analysis and numerical simulation.
More specifically, the bottom plate of the measuring box 1 is equipped with the vertical columns 5 that can be inserted into road surface structare layer, measurement
The top of box 1 is equipped with arch-shaped steel plate 6, and the both ends of arch-shaped steel plate 6 are respectively equipped with scalable arch sheet 9, the bottom plate two of measuring box 1
End is respectively equipped with the base platform 12 with slideway, is equipped with vertical side between scalable arch sheet 9 and base platform 12 with slideway
Plate 10 is equipped with bottom pulley 13 with vertical front and rear panel 11, the bottom of perpendicular side plate 10.Using such structure setting, pass through measurement
The steel plate outer wall of box 1, which plays, plays a protective role to the sensor 8 in measuring box 1, wherein the effect of vertical columns 5 be by
Measuring box 1 is fixed in road surface structare layer, prevents from being displaced, and avoids error occur when measurement.
In practical application, when road surface generates deformation situation because of temperature, the bottom pulley 13 of the base platform 12 with slideway
Under effect, scalable arch sheet 9 can generate displacement with perpendicular side plate 10, to realize measurement temperature and stress by sensor 8
The effect of variation.
More specifically, light spring 14 is equipped between the perpendicular side plate 10 and the side plate of measuring box 1.Using such
Structure setting, the contact that perpendicular side plate 10 can be made close and smooth with extraneous pavement structure at any time by light spring 14, thus
Keep the contact precision of sensor 8 higher.
More specifically, the sensor 8 uses Multifunctional resistance type displacement meter, and one end of sensor 8 is equipped with measurement and visits
First 16, measuring probe 16 contacts in the perpendicular side plate 10 of 1 side of measuring box, and the other end of sensor 8 is connected to the one of conducting wire 3
End, data collector 4 are equipped with connector 17, and the other end of conducting wire 3 is connected after passing through PE conducting wire fairlead 2 by end plug 18
In the connector 17 on data collector 4.In practical application, sensor 8 described in the utility model is two, two sensors 8
Measuring probe 16 contact in the perpendicular side plate 10 at 1 both ends of measuring box respectively, the movement by measuring perpendicular side plate 10 is surveyed
The deformation response of pavement structure is measured, to obtain the stress variation situation of road surface structare layer, efficiently solves tied on road surface in this way
Structure sensor 8 is influenced by different measuring points variation, provides biggish convenience for the embedded work of sensor 8, and can be same
Two groups of data are obtained simultaneously on one measuring point, can not only be provided for the check and correction and verifying of data conveniently, also enhance monitoring device
Validity.
In practical application, includes multiple connectors 17 in data collector 4 described in the utility model, can carry simultaneously multiple
Sensor 8, and the data of acquisition are transmitted in long-range reception system by GPRS.
More specifically, fixed bearing platform 7 is equipped in the measuring box 1, fixed bearing platform 7 is equipped with locating groove 70, sensing
Device 8 is equipped with fixed lobe 19, and sensor 8 is by fixed lobe 19 in the locating groove 70 in fixed bearing platform 7.Using this
The structure setting of sample is positioned at sensor 8 in fixed bearing platform 7, and installation and removal are very convenient.
More specifically, the sensor fixed bearing platform 7 is equipped with the circular opening 15 that can be convenient for cabling.Using such
Structure setting is through at after circular opening 15 convenient for conducting wire 3 and is connected to sensor 8.
In practical application, PE conducting wire fairlead 2 described in the utility model is just corresponding with circular opening 15 to be fitting to connection,
It is placed in conducting wire in protection pipe always, further improves the validity of sensor.
More specifically, the PE conducting wire fairlead 2 is using the Telescopic flexible pipe being made of more piece short tube.Using such
Structure setting, can according to pavement structure transverse width convert PE conducting wire fairlead 2 length so that the installation of device it is more flexible and
Disassembly is more convenient.
In practical application, the diameter of PE conducting wire fairlead 2 described in the utility model is 3~4 five times of 3 diameter of conducting wire.
More specifically, the vertical columns 5 use foldable thin steel column.Using such structure setting, make fixed vertical
Column 5 can be used on hard or soft ground.
The installation method of the utility model:
By taking certain highway as an example, the laterally wide 22.5m of the highway, the wide 11.25m of single width, wherein earth shoulder 0.75m,
Hardened verge 3m, runway 7.5m have upper layer, middle surface layer, cutting optimal, basis and underlayment in road surface structare layer, below with
Monitor the road surface base's temperature stress variation for installed；
1) when the base booth on road surface is caught, corresponding measuring point is first selected at hardened verge 0.5m in runway, it is then right
The lower part of specified point position carries out after clearing up smooth processing, then four vertical columns 5 of 1 bottom of measuring box are opened, by it
Keep measuring box 1 stable and smooth in insertion underlayment；
2) after fixing measuring box 1, the conducting wire 3 of sensor 8 is penetrated in PE conducting wire fairlead 2 and is worn from the other end
Out, then PE conducting wire fairlead 2 is arranged on the direction longitudinally perpendicular with measuring box 1, and adjusts pipe range and be longer than it and has a lot of social connections 1
~2m；
3) conducting wire 3 drawn by PE conducting wire fairlead 2 is connected on the connector 17 of data collector 4, and data is adopted
Storage 4 is scheduled to normal operating condition；
4) after data collector 4 is debugged, then compacting construction is carried out to base, after base has been compacted, checks sensor 8
It is whether normal, if carrying out the next step construction of pavement structure again in normal condition.
Ibid, installation method of the monitoring device when monitoring the temperature stress of road surface other structures layer is same as described above.
The technical scheme in the embodiment of the utility model is described above, but the utility model is not limited to
The specific embodiment stated, the above mentioned embodiment is only schematical, rather than restrictive, this field it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the protection scope of the utility model.
Claims (8)
1. a kind of temperature stress monitoring device of road surface structare layer, it is characterised in that: including the survey being embedded in road surface structare layer in advance
Amount box (1) is embedded in PE conducting wire fairlead (2) in road surface structare layer, conducting wire (3) and data collector (4), the measuring box in advance
(1) sensor (8) are equipped in, the sensor (8) is connected to one end of conducting wire (3), and the other end of the conducting wire (3) passes through PE
Data collector (4) are connected to after conducting wire fairlead (2).
2. a kind of temperature stress monitoring device of road surface structare layer according to claim 1, it is characterised in that: the measurement
The bottom plate of box (1) is equipped with the vertical columns (5) that can be inserted into road surface structare layer, and the top of the measuring box (1) is equipped with arch
The both ends of shape steel plate (6), the arch-shaped steel plate (6) are respectively equipped with scalable arch sheet (9), the bottom plate two of the measuring box (1)
End is respectively equipped with the base platform (12) with slideway, between the scalable arch sheet (9) and base platform (12) with slideway
Equipped with perpendicular side plate (10) and vertical front and rear panel (11), the bottom of the perpendicular side plate (10) is equipped with bottom pulley (13).
3. a kind of temperature stress monitoring device of road surface structare layer according to claim 2, it is characterised in that: described vertical
Light spring (14) are equipped between side plate (10) and the side plate of measuring box (1).
4. a kind of temperature stress monitoring device of road surface structare layer according to claim 1, it is characterised in that: the sensing
Device (8) uses Multifunctional resistance type displacement meter, and one end of the sensor (8) is equipped with measuring probe (16), the measuring probe
(16) it contacts in the perpendicular side plate (10) of measuring box (1) side, the other end of the sensor (8) is connected to conducting wire (3)
One end, the data collector (4) are equipped with connector (17), after the other end of the conducting wire (3) passes through PE conducting wire fairlead (2)
The connector (17) being connected to by end plug (18) on data collector (4).
5. a kind of temperature stress monitoring device of road surface structare layer according to claim 1, it is characterised in that: the measurement
Fixed bearing platform (7) are equipped in box (1), the fixed bearing platform (7) is equipped with locating groove (70), and the sensor (8) is equipped with
Fixed lobe (19), the sensor (8) is by fixed lobe (19) in the locating groove (70) on fixed bearing platform (7).
6. a kind of temperature stress monitoring device of road surface structare layer according to claim 5, it is characterised in that: the sensing
Device fixed bearing platform (7) is equipped with the circular opening (15) that can be convenient for cabling.
7. a kind of temperature stress monitoring device of road surface structare layer according to claim 1, it is characterised in that: the PE is led
Line fairlead (2) is using the Telescopic flexible pipe being made of more piece short tube.
8. a kind of temperature stress monitoring device of road surface structare layer according to claim 2, it is characterised in that: the fixation
Column (5) uses foldable thin steel column.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822121376.4U CN209459692U (en) | 2018-12-18 | 2018-12-18 | A kind of temperature stress monitoring device of road surface structare layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822121376.4U CN209459692U (en) | 2018-12-18 | 2018-12-18 | A kind of temperature stress monitoring device of road surface structare layer |
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| CN209459692U true CN209459692U (en) | 2019-10-01 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459163A (en) * | 2018-12-18 | 2019-03-12 | 中交第二航务工程勘察设计院有限公司 | A kind of temperature stress monitoring device of road surface structare layer |
| CN112097977A (en) * | 2020-08-25 | 2020-12-18 | 东南大学 | Fixing device and mounting method suitable for embedded sensor in cement concrete pavement |
| CN112160305A (en) * | 2020-09-22 | 2021-01-01 | 温州大学 | Device for monitoring internal deformation and fine particle loss of track roadbed |
| CN112176906A (en) * | 2020-09-10 | 2021-01-05 | 北京弋宸时代科技有限公司 | Fixing device of pavement sensor |
-
2018
- 2018-12-18 CN CN201822121376.4U patent/CN209459692U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459163A (en) * | 2018-12-18 | 2019-03-12 | 中交第二航务工程勘察设计院有限公司 | A kind of temperature stress monitoring device of road surface structare layer |
| CN109459163B (en) * | 2018-12-18 | 2023-09-29 | 中交第二航务工程勘察设计院有限公司 | Temperature stress monitoring device for pavement structural layer |
| CN112097977A (en) * | 2020-08-25 | 2020-12-18 | 东南大学 | Fixing device and mounting method suitable for embedded sensor in cement concrete pavement |
| CN112097977B (en) * | 2020-08-25 | 2022-03-11 | 东南大学 | Fixing device and mounting method suitable for embedded sensor in cement concrete pavement |
| CN112176906A (en) * | 2020-09-10 | 2021-01-05 | 北京弋宸时代科技有限公司 | Fixing device of pavement sensor |
| CN112176906B (en) * | 2020-09-10 | 2022-05-10 | 北京弋宸时代科技有限公司 | Fixing device of pavement sensor |
| CN112160305A (en) * | 2020-09-22 | 2021-01-01 | 温州大学 | Device for monitoring internal deformation and fine particle loss of track roadbed |
| CN112160305B (en) * | 2020-09-22 | 2021-08-31 | 温州大学 | Device for monitoring internal deformation and fine particle loss of track roadbed |
| US20220089201A1 (en) * | 2020-09-22 | 2022-03-24 | Wenzhou University | Monitoring device for internal deformation and fine particle loss of railway subgrade |
| US11628867B2 (en) * | 2020-09-22 | 2023-04-18 | Wenzhou University | Monitoring device for internal deformation and fine particle loss of railway subgrade |
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