CN105527165B - A kind of asphalt pavement crack load response relative displacement test method and test device - Google Patents
A kind of asphalt pavement crack load response relative displacement test method and test device Download PDFInfo
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- CN105527165B CN105527165B CN201610072543.3A CN201610072543A CN105527165B CN 105527165 B CN105527165 B CN 105527165B CN 201610072543 A CN201610072543 A CN 201610072543A CN 105527165 B CN105527165 B CN 105527165B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0037—Generation of the force using mechanical means involving a rotating movement, e.g. gearing, cam, eccentric, or centrifuge effects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0062—Crack or flaws
- G01N2203/0066—Propagation of crack
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a kind of asphalt pavement crack load response relative displacement test method and test devices.The test method includes：A, standard and sensor locating piece is respectively set in the both sides in crack to be measured, horizontal linearity displacement sensor and vertical linearity displacement sensor is fixedly installed on the sensor locating piece；B, test vehicle is made to be parked at the standard described in step a and sensor locating piece；C, start sensor, and test carriage is made slowly to move forward, pass through sensor locating piece, standard successively, after vehicle to be tested is driven out to suitable distance, closure sensor completes test.The test device is made of standard, sensor locating piece, horizontal linearity displacement sensor, vertical linearity displacement sensor and controller.Compared with prior art, method for testing of the invention and test device can accurately measure the horizontal and vertical relative displacement between the plate body of two, crack, and the origin cause of formation and development degree in crack are determined by the feature of displacement.
Description
Technical field
The present invention relates to a kind of bituminous paving detection method, specifically a kind of asphalt pavement crack load response is opposite
Displacement measurement method and test device.
Background technology
Crack is that the various diseases in road surface accelerate to generate, deteriorate the main inducing aggravated.Although Producing reason and performance are not
It is identical to the greatest extent.Undeniable to be, crack provides channel for the entrance of water, accelerates the diseases such as purt slurry, pit-hole, deformation and check crack
Generation, also seriously affected the stability of overlay after highway intermediate maintenance cover.Crack progressing different phase fracture into
Row handle measure appropriate, avoids it from developing upwards, is the key technical problem for being related to bituminous paving service life.
In the prior art, conventional fracture deflection testing is generally detected using drop hammer deflection meter (FWD), is not only tested
Precision is low, and it is even more impossible to differentiate the information such as the origin cause of formation in crack, developing stage, crack relative displacement well.It is split by test pit research
Although the origin cause of formation of seam and developing feasible, road pavement damage is excessively huge, thus study it is a kind of effectively, it is reliable, efficiently split
Seam detection detection method is necessary.
Invention content
The technical assignment of the present invention is in view of the above shortcomings of the prior art, to provide a kind of asphalt pavement crack load response
Relative displacement test method, this method can accurately measure the horizontal and vertical relative displacement between the plate body of two, crack, pass through position
The feature of shifting determines the origin cause of formation and development degree in crack.
The further technical assignment of the present invention is to provide the asphalt pavement crack load response for realizing the above method with respect to position
Move test device.
The technical assignment of the present invention is realized in the following manner：Asphalt pavement crack load response relative displacement test side
Method includes the following steps：
A, standard is set in the side in crack to be measured, sensor locating piece is set in the other side in crack to be measured, it is described
Horizontal linearity displacement sensor and vertical linearity displacement sensor are fixedly installed on sensor locating piece, horizontal linearity displacement passes
Sensor measurement end is vertical with a certain vertical plane of locating piece and contacts, vertical linearity displacement sensor end and locating piece certain
One horizontal plane and contact；
B, it is test vehicle with the bogie that rear axle bilateral 4 is taken turns, test vehicle is made to be parked in standard and biography described in step a
At sensor locating piece, test vehicle rear tread takes turns gap midpoint, standard, sensor locating piece one from crack suitable distance
On straight line；
C, start sensor, and test carriage is made slowly to move forward, pass through sensor locating piece, standard successively, it is to be measured
After test run is driven out to suitable distance, vehicle stops, closure sensor, completes test.
While carrying out above-mentioned test, surveyed crack road table temperature can be detected, and recorded, to facilitate pair
The origin cause of formation, the developing stage in crack etc. are further differentiated.
The crack measuring point of selection needs more straight.
Preferably, standard and the line of sensor locating piece are vertical with crack.
The standard can be the component that any one is capable of providing at least one vertical plane and at least one horizontal plane,
Such as cuboid, text body, but in order to reach best technique effect, the standard is preferably made of vertical plate, level board,
Vertical plate, level board are L-shaped to be vertically arranged, and horizontal linearity displacement sensor end is vertical with the vertical plane of vertical plate and connects
It touches, vertical linearity displacement sensor end and the horizontal plane of level board and contacts.
Preferably, the lower edge of standard and sensor locating piece close to crack side away from crack vertical range is 1-
3cm, optimum distance 1cm.
The load-carrying vehicles, preferably twin shaft bogie such as twin shaft in the prior art, three axis can be used in the test vehicle.
When crack is transverse joint, test vehicle heading is road travel direction.
Preferably, in step b, when test originates, test vehicle rear tread is from 10~30cm of crack, most preferably 15cm；
In step c, after vehicle to be tested is driven out to 2-5m with the speed of 5km/h, vehicle stops, closure sensor, completes test.
The horizontal linearity displacement sensor of controller and the sample frequency of vertical linearity displacement sensor are preferably 100Hz,
Acquisition precision is 0.01mm.
In order to preferably realize above-mentioned test method, preferably with the asphalt pavement crack load response relative displacement of lower structure
Test device is tested.
The asphalt pavement crack load response relative displacement test device by with the use of standard and sensor system
System is constituted, and has at least one vertical plane and at least one horizontal plane on the standard, the sensing system is mainly by sensing
Device locating piece, horizontal linearity displacement sensor, vertical linearity displacement sensor and controller are constituted, horizontal linearity displacement sensor
It is horizontally fixed on sensor locating piece front end, and its measurement end extends on the outside of sensor locating piece, with one vertical plane of standard
It is in contact；Vertical linearity displacement sensor is fixed on the outside of sensor locating piece front end, measurement end and standard one vertically
Horizontal plane is in contact；Controller is fixed on sensor locating piece rear end, horizontal linearity displacement sensor, vertical linearity displacement sensing
Device is connect by data line with controller.
Standard and vertical plane, the horizontal plane of sensor measurement end in contact are smooth, and sensor measurement end with it is vertical
In the middle part of face, horizontal plane, prevent load action lower sensor from deviating from the interface of standard.
Sensor locating piece bottom surface is provided with stabilizer blade.
The asphalt pavement crack load response relative displacement test method and test device of the present invention is compared with prior art
With advantageous effect following prominent：
(1) the horizontal and vertical relative displacement between the plate body of two, crack can be accurately measured under the conditions of lossless, passed through
The feature of displacement determines the origin cause of formation and development degree in crack；
(2) test method is simple and reliable, and crack maintenance program, which is formulated, in being conserved for medium-capital overhauling provides data support.
Description of the drawings
Attached drawing 1 is the structural schematic diagram of asphalt pavement crack load response relative displacement test device of the present invention；
Attached drawing 2 is the vertical view of test device shown in Fig. 1；
Attached drawing 3 is the bituminous paving original pavement structure figure in embodiment two；
Attached drawing 4 is the data acquisition pattern of two test device of embodiment.
Specific implementation mode
The asphalt pavement crack load response relative displacement of the present invention is tested with specific embodiment with reference to Figure of description
Method and test device are described in detail below.
Embodiment one：
As shown in attached drawing 1,2, asphalt pavement crack load response relative displacement test device of the invention is mainly by benchmark
Part 1, sensor locating piece 2, horizontal linearity displacement sensor 3, vertical linearity displacement sensor 4, controller 5 and holder 6 are constituted.
Wherein, sensor locating piece 2, horizontal linearity displacement sensor 3, vertical linearity displacement sensor 4 and controller 5 constitute sensor
System.
The standard 1 is " L " the shape component being made of vertical plate, level board, and vertical plate, level board are mutually perpendicular to.Base
Vertical plane, the horizontal plane of 1 inside of quasi- part are smooth, are used for and sensor measurement end in contact.
The sensor locating piece 2 is tabular, and holder 6 is fixed on 2 front end of sensor locating piece, and controller 5 is fixed on
2 rear end of sensor locating piece.2 bottom surface of sensor locating piece is fixed with stabilizer blade 9.
Horizontal linearity displacement sensor 3 is horizontally fixed on 2 front end of sensor locating piece by screw rod 7, and its measurement end is prolonged
2 outside of sensor locating piece is extended to, perpendicular contact is faced directly with the medial shaft of standard 1.Vertical linearity displacement sensor 4 passes through spiral shell
Bolt 8 is fixed on the outside of 2 front end of sensor locating piece vertically, and measurement end is contacted with the horizontal plane of 1 inside of standard.Water
Flat Linear displacement transducer 3 and vertical linearity displacement sensor 4 are connect by data line 10 with controller 5.
Controller 5 is collected data and is connected with mobile interchange equipment by Bluetooth wireless transmission technology.Controller 5
Interior charged lithium cells can be set, to meet equipment power demands.
LVDT sensors can be used in the horizontal linearity displacement sensor 3, vertical linearity displacement sensor 4.
Embodiment two：
The specific implementation step of asphalt pavement crack load response relative displacement test method is as follows：
(1) select a straight road surface transverse joint 11, former pavement structure as shown in Fig. 3；
(2) surveyed 25 DEG C of crack road table temperature is detected, and is recorded；
(3) one section that this crack 11 is more straight is selected, by the standard 1 of test device described in embodiment one by strong
Power glue is fixed to 11 side of crack, and 1 edge of standard is 1cm far from 11 vertical range of crack, and parallel with surveyed crack section；
(4) sensing system of test device is fixed on to the other side in crack 11 by seccotine, sensor is made to position
2 lower edge of part is parallel with crack 11 and is aligned with standard 1, and lower edge is 1cm away from 11 vertical range of crack.It is required that sensor locating piece
2 is vertical with crack 11 with the line of standard 1, and the measurement end and the medial shaft of standard 1 of horizontal linearity displacement sensor 3 are faced directly
Vertical and full contact；It the horizontal plane of 1 inside of the measurement end of vertical linearity displacement sensor 4 and standard and connects completely
It touches；
(5) test vehicle uses twin shaft, the bogie that rear axle bilateral 4 is taken turns.Test carriage should use rear axle 10T standard axle loads
The automobile of BZZ-l00, wheel clearance, which wants that test device can be met, to be passed freely through；
Standard axle load BZZ-l00 meets requirement below：
(6) test carriage trailing wheel is apart from the crack positions 15cm, and wheel gap midpoint, standard and sensing system are in straight line
On；
(7) start sensor, so that sensor reading is zeroed, data collector frequency is determined as 100Hz；
(8) tester commands test carriage slowly to move forward, and first passes through analyzer standard, passes through sensing system later
(if crack is transverse joint, and test carriage travel direction is direction of traffic), vehicle tyre is forbidden touching analyzer, vehicle traveling speed
5km/h is spent, after automobile is driven out to 3m, vehicle stops, and closes analyzer.
Data acquire pattern as shown in figure 4, specific data are as follows：
Claims (7)
1. a kind of asphalt pavement crack load response relative displacement test method, it is characterised in that include the following steps：
A, standard is set in the side in crack to be measured, sensor locating piece, the sensing is set in the other side in crack to be measured
Horizontal linearity displacement sensor and vertical linearity displacement sensor, horizontal linearity displacement sensor are fixedly installed on device locating piece
Measurement end is vertical with a certain vertical plane of locating piece and contacts, a certain water at vertical linearity displacement sensor end and locating piece
Plane is vertical and contacts；
B, it is test vehicle with the bogie that rear axle bilateral 4 is taken turns, test vehicle is made to be parked in standard and sensor described in step a
At locating piece, test vehicle rear tread is from crack suitable distance, and it is straight at one to take turns gap midpoint, standard, sensor locating piece
On line；
C, start sensor, and test carriage is made slowly to move forward, pass through sensor locating piece, standard, test run to be measured successively
After being driven out to suitable distance, vehicle stops, closure sensor, completes test.
2. asphalt pavement crack load response relative displacement test method according to claim 1, which is characterized in that benchmark
Part and the line of sensor locating piece are vertical with crack.
3. asphalt pavement crack load response relative displacement test method according to claim 1 or 2, which is characterized in that
The standard is made of vertical plate, level board, and vertical plate, level board are L-shaped to be vertically arranged, horizontal linearity displacement sensor
Measurement end is vertical with the vertical plane of vertical plate and contacts, the horizontal plane at vertical linearity displacement sensor end and level board
And it contacts.
4. asphalt pavement crack load response relative displacement test method according to claim 3, which is characterized in that benchmark
The lower edge of part and sensor locating piece close to crack side away from crack vertical range is 1-3cm.
5. asphalt pavement crack load response relative displacement test method according to claim 1, which is characterized in that described
Test vehicle is twin shaft bogie.
6. asphalt pavement crack load response relative displacement test method according to claim 1, which is characterized in that crack
For transverse joint when, test vehicle heading be road travel direction.
7. asphalt pavement crack load response relative displacement test method according to claim 1, which is characterized in that step
In b, when test originates, test vehicle rear tread is from 10~30cm of crack；
In step c, after vehicle to be tested is driven out to 2-5m with the speed of 5km/h, vehicle stops, closure sensor, completes test.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610072543.3A CN105527165B (en) | 2016-02-02 | 2016-02-02 | A kind of asphalt pavement crack load response relative displacement test method and test device |
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| CN201610072543.3A CN105527165B (en) | 2016-02-02 | 2016-02-02 | A kind of asphalt pavement crack load response relative displacement test method and test device |
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| CN105527165A CN105527165A (en) | 2016-04-27 |
| CN105527165B true CN105527165B (en) | 2018-07-24 |
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| CN106644336B (en) * | 2016-11-02 | 2019-02-22 | 西安建筑科技大学 | A kind of frame structure crosses over ground fissure experimental system and method |
| CN109804119B (en) * | 2016-12-30 | 2021-03-19 | 同济大学 | Asphalt pavement crack development degree detection method based on infrared thermography analysis |
| CN108952208B (en) * | 2018-09-25 | 2024-03-26 | 深圳市志纵四海科技有限公司 | Object crack repairing tool |
| CN110749296A (en) * | 2019-10-25 | 2020-02-04 | 杭州同圣土工材料有限公司 | Crack three-direction relative displacement measuring device with sensor and measuring method thereof |
| CN110702014B (en) * | 2019-11-26 | 2021-04-06 | 苏交科集团股份有限公司 | Crack monitoring device and method for road slope |
| CN112213391B (en) * | 2020-10-15 | 2022-05-27 | 山东省交通科学研究院 | Nondestructive excitation inspection device for anchor rod |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002296159A (en) * | 2001-03-30 | 2002-10-09 | Matsumura Gumi Corp | Test apparatus for loading flat plate and recording medium |
| CN202330192U (en) * | 2011-11-24 | 2012-07-11 | 长安大学 | Test device capable of simulating actual road surface cracks through reflection cracks |
| CN203462390U (en) * | 2013-09-13 | 2014-03-05 | 江苏苏科畅联科技有限公司 | Multi-point falling weight type deflection detecting vehicle |
| CN104458398A (en) * | 2014-11-25 | 2015-03-25 | 中交第二公路勘察设计研究院有限公司 | Semi-rigid base asphalt pavement reflection crack testing device |
| CN104915480A (en) * | 2015-05-22 | 2015-09-16 | 山东省交通科学研究院 | Determination method for semi-rigid base bituminous pavement crack damage state |
| CN205426670U (en) * | 2016-02-02 | 2016-08-03 | 山东省交通科学研究院 | Bituminous paving crack load response relative displacement tester |
-
2016
- 2016-02-02 CN CN201610072543.3A patent/CN105527165B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002296159A (en) * | 2001-03-30 | 2002-10-09 | Matsumura Gumi Corp | Test apparatus for loading flat plate and recording medium |
| CN202330192U (en) * | 2011-11-24 | 2012-07-11 | 长安大学 | Test device capable of simulating actual road surface cracks through reflection cracks |
| CN203462390U (en) * | 2013-09-13 | 2014-03-05 | 江苏苏科畅联科技有限公司 | Multi-point falling weight type deflection detecting vehicle |
| CN104458398A (en) * | 2014-11-25 | 2015-03-25 | 中交第二公路勘察设计研究院有限公司 | Semi-rigid base asphalt pavement reflection crack testing device |
| CN104915480A (en) * | 2015-05-22 | 2015-09-16 | 山东省交通科学研究院 | Determination method for semi-rigid base bituminous pavement crack damage state |
| CN205426670U (en) * | 2016-02-02 | 2016-08-03 | 山东省交通科学研究院 | Bituminous paving crack load response relative displacement tester |
Non-Patent Citations (1)
| Title |
|---|
| 基于相对位移法的铰缝破损程度检测;钱寅泉，周正茂，葛玮明，袁桂芳，韩光强2;《公路交通科技》;20120731;第29卷(第7期);第76-81页 * |
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