CN105784546B - A kind of steep slope road section asphalt roller compaction process flow behavior indoor test device - Google Patents
A kind of steep slope road section asphalt roller compaction process flow behavior indoor test device Download PDFInfo
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- CN105784546B CN105784546B CN201610277949.5A CN201610277949A CN105784546B CN 105784546 B CN105784546 B CN 105784546B CN 201610277949 A CN201610277949 A CN 201610277949A CN 105784546 B CN105784546 B CN 105784546B
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- idler wheel
- thermally conductive
- flow behavior
- paves
- hopper
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
Abstract
The present invention discloses a kind of steep slope road section asphalt roller compaction process flow behavior test device, including support, thermally conductive, the hopper that paves, idler wheel, roller fixing device, idler wheel device of rotation driving, control pressurer system and hydraulic system；Thermally conductive upper surface is provided with the hopper that paves；On the support, the other end is arranged in hydraulic system for thermally conductive one end setting；Hydraulic system pushes thermally conductive to be at an angle to the horizontal surface；Idler wheel is movably arranged on thermally conductive platform by roller fixing device；Idler wheel device of rotation driving is connected with idler wheel and idler wheel is driven to roll in the hopper that paves；Control pressurer system way roller applies pressure, and the direction of pressure is always perpendicular to plane where thermally conductive.The present invention can be simulated under different gradient steep slope road section, flow behavior of the asphalt under different paving materials and under the effect of different Compaction Efforts by changing the gradient, thermally conductive temperature and the vertical pressure in vertical heat transfer platform direction.
Description
Technical field
The invention belongs to field of road, it is related to a kind of road engineering structural behaviour research equipment, more particularly to a kind of
Steep slope road section asphalt roller compaction process flow behavior indoor test device.
Background technique
With the rapid development of the national economy, it has been essential for building high-grade highway in Freeway of Mountain Range, but due to
There is track, elapse and gather around the diseases such as packet in the inclement conditions such as landform, environment, traffic, Asphalt Pavement on Large Longitudinal Slope.There are these
The reason of disease, in addition to the shear resistance and shearing strength at intersection performance deficiency and structure with large longitudinal slope section asphalt
It is related to design the factors such as unreasonable, it is also related with the construction technology in large longitudinal slope section.In large longitudinal slope section, asphalt
The flowing of isolation, mixture that thickness is gathered materials easily occurs in large longitudinal slope section and in roller compaction process Asphalt Mixture
Passage deformation etc..Therefore, flow behavior of the research steep slope road section asphalt in construction work and propose that a set of science is closed
The construction technology of reason extends the pavement structure service life with important meaning for reducing and preventing and treating Asphalt Pavement on Large Longitudinal Slope disease
Justice.
In large longitudinal slope section, generally use two methods for the simulation of asphalt flow behavior: one is objects
Model is managed, mainly describes material internal physical characteristic, such as molecular motion and crack extesion are to the shadow of material flowing deformation performance
It rings；Another kind is mechanics rheological model, mainly passes through the stress-strain characteristic of material, and prediction becomes in any stress and temperature
Material deformation under changing.It can be in microcosmic upper Research on Asphalt Mixture under the conditions of different stress and temperature by both methods
The deformation characteristic of material.It constructs in large longitudinal slope or steep slope road section, the flow behavior of mixture is by temperature, the gradient, construction machine
Tool type rolls that function, to roll the factors such as direction, rolling layer related, and comprehensive all these influence factors study mixture
Flow behavior is than more comprehensive.
Currently, mainly simulating large longitudinal slope section work progress Asphalt Mixture using finite element software in temperature
Degree, the gradient roll working condition under the influence of the factors such as function and compaction speed, currently, indoor test relevant not yet is set
Standby or test device.
Based on the above reasons, a kind of steep slope road section asphalt work progress flow behavior indoor test dress is developed
It sets, for working condition of the Research on Asphalt Mixture in steep slope road section work progress, proposes that some truly feasible technologies are arranged
It applies, provides reference for the construction of Asphalt Pavement on Large Longitudinal Slope.
Summary of the invention
In order to solve the above technical problems in background technology, the purpose of the present invention is to provide a kind of easy to be steep
Slope section asphalt roller compaction process flow behavior indoor test device, it is contemplated that temperature, the gradient roll function, rolling speed
Etc. influence of the factors to asphalt characteristic, mainly by after rolling, different location mixture in the hopper that paves
Compactness in conjunction with the gradient, rolls temperature, pressure in conjunction with the distribution character of image processing techniques research different location mixture mineral aggregate
The factors such as real function analyze flow behavior of mixture under the influence of these factors jointly.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of steep slope road section asphalt roller compaction process flow behavior indoor test device, it is characterised in that: abrupt slope road
Section asphalt roller compaction process flow behavior indoor test device include support, thermally conductive, the hopper that paves, idler wheel, idler wheel it is solid
Determine device, idler wheel device of rotation driving, control pressurer system and hydraulic system；Thermally conductive upper surface is provided with the material that paves
Slot；On the support, the other end is arranged in hydraulic system for thermally conductive one end setting；Hydraulic system push thermally conductive horizontal by
Certain angle；Idler wheel is movably arranged on thermally conductive platform by roller fixing device；Idler wheel device of rotation driving is connected simultaneously with idler wheel
Driving idler wheel rolls in the hopper that paves；Control pressurer system way roller applies pressure, and the direction of pressure is always perpendicular to thermally conductive
Plane where platform.
Preferably, one end fixed setting of movable plate of the present invention is on the support, the other end passes sequentially through shifting
Dynamic formula bracket and movable support are connect with idler wheel.
Preferably, being provided with rotation axis on movable support of the present invention；Roller housing dress on the rotating shaft and around
The axial-rotation of rotation axis；Control pressurer system applies pressure to rotation axis, and the direction of the pressure is always perpendicular to thermally conductive institute
In plane；Idler wheel device of rotation driving is connected with rotation axis and drives idler wheel to roll in the hopper that paves by rotation axis.
Preferably, idler wheel device of rotation driving of the present invention includes hawser, pulley and coiling；Hawser
One end is connected with rotation axis, and the other end is wrapped on coiling by pulley；Hawser drives idler wheel in the material that paves by rotation axis
It is rolled in slot.
Preferably, the temperature controller for being provided with heating tube on thermally conductive platform of the present invention and being connected with heating tube.
Preferably, idler wheel of the present invention is one or two；When idler wheel is two, two idler wheels are arranged same
On one axis；The spacing no more than 2cm is provided between two idler wheels.
Preferably, the spacing between the outer edge of idler wheel of the present invention and the inward flange for the hopper that paves is
0.5cm。
Preferably, the height of the hopper of the present invention that paves is 3~10cm.
The invention has the advantages that
The present invention provides a kind of steep slope road section asphalt roller compaction process flow behavior indoor test devices, including branch
Seat, thermally conductive, the hopper that paves, idler wheel, roller fixing device, idler wheel device of rotation driving, control pressurer system and hydraulic pressure system
System；Thermally conductive upper surface is provided with the hopper that paves；On the support, the other end is arranged in hydraulic system for thermally conductive one end setting
On；Hydraulic system pushes thermally conductive to be at an angle to the horizontal surface；Idler wheel is movably arranged on thermally conductive by roller fixing device
On；Idler wheel device of rotation driving is connected with idler wheel and idler wheel is driven to roll in the hopper that paves；Control pressurer system way roller is applied
Plus-pressure, the direction of pressure is always perpendicular to plane where thermally conductive.The present invention simulates different slopes by thermally conductive lifting
The road surface of degree, rolling simulation rolling device of the idler wheel on thermally conductive platform apply different pressures on idler wheel and represent difference and roll function, lead
Thermal station is heating, and adjustable asphalt rolls temperature, after the completion of rolling, by testing different positions in the hopper that paves
The compactness for setting asphalt paves in hopper asphalt mineral aggregate at different location in conjunction with image processing techniques analysis
The distribution characteristics of grain, the stream of asphalt under the overall merit gradient, the factors style of work such as roll function, temperature, rolling layer
Dynamic characteristic.The present invention can be simulated by changing the gradient, thermally conductive temperature and the vertical pressure in vertical heat transfer platform direction
Under different gradient steep slope road section, flow behavior of the asphalt under different paving materials and under the effect of different Compaction Efforts is
Large longitudinal slope or the construction technology of steep slope road section provide the theory support of science.
Detailed description of the invention
Fig. 1 is the knot of steep slope road section asphalt roller compaction process flow behavior indoor test device provided by the present invention
Structure schematic diagram；
Label is described as follows in Fig. 1:
1- support；2- thermally conductive；3- paves hopper；4- idler wheel；5- rotation axis；6- movable plate；7- removable support；8- is living
Dynamic bracket；9- hawser；10- pulley；11- power supply line；12- hydraulic system；13- coiling；14- control pressurer system.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, and unknown place is shown in Summary.
Referring to Fig. 1, the present invention provides a kind of steep slope road section asphalt roller compaction process flow behavior indoor test dresses
Set, the steep slope road section asphalt roller compaction process flow behavior indoor test device include support 1, thermally conductive 2, pave hopper
3, idler wheel 4, roller fixing device, idler wheel device of rotation driving, control pressurer system 14 and hydraulic system 12；Thermally conductive 2
Upper surface is provided with the hopper 3 that paves；Thermally conductive 2 one end are arranged on support 1, and the other end is arranged in hydraulic system 12；It is hydraulic
System 12 pushes thermally conductive 2 to be at an angle to the horizontal surface；Idler wheel 4 is movably arranged on thermally conductive 2 by roller fixing device；
Idler wheel device of rotation driving is connected with idler wheel 4 and idler wheel 4 is driven to roll in the hopper 3 that paves；14 way roller 4 of control pressurer system
Apply pressure, the direction of pressure is always perpendicular to thermally conductive 2 place planes.
One end of movable plate 6 is fixed on support 1, and the other end passes sequentially through removable support 7 and movable support 8
It is connect with idler wheel 4.
Rotation axis 5 is provided on movable support 8；Idler wheel 4 is sleeved in rotation axis 5 and around the axial-rotation of rotation axis 5；Pressure
Force control system 14 applies pressure to rotation axis 5, and the direction of the pressure is always perpendicular to thermally conductive 2 place planes；Idler wheel rotation
Driving device is connected with rotation axis 5 and drives idler wheel 4 to roll in the hopper 3 that paves by rotation axis 5.
Idler wheel device of rotation driving includes hawser 9, pulley 10 and coiling 13；One end of hawser 9 and 5 phase of rotation axis
Even, the other end is wrapped on coiling 13 by pulley 10；Hawser 9 drives idler wheel 4 to roll in the hopper 3 that paves by rotation axis 5
It is dynamic.
It is provided with heating tube on thermally conductive 2 and passes through the temperature controller that power supply line 11 is connected with heating tube.
Idler wheel 4 is one or two；When idler wheel 4 is two, two settings of idler wheel 4 are on the same axis；Two idler wheels 4 it
Between be provided with spacing no more than 2cm.
Spacing between the outer edge of idler wheel 4 and the inward flange for the hopper 3 that paves is 0.5cm.
Pave hopper 3 height be 3~10cm.
Embodiment 1:
First with mixing and stirring a pot mixing asphalt, and poured into the hopper that paves after the quality of material is weighed up, and by its
It shakeouts.It is in advance 140 DEG C by thermally conductive temperature setting, and idler wheel is placed on to thermally conductive bottom of slope position, rope will be pulled and be straightened,
The thermally conductive gradient is raised to 50 degree or so, load pressure on the rotating shaft is adjusted, the temperature of mixture is tested with thermometer,
When temperature reaches 140 DEG C, idler wheel rotation is pulled with certain speed with rope is pulled, according to research needs, idler wheel can be set and existed
Rolling number on thermally conductive platform back and forth.After being completed, the compactness of asphalt at different location in the hopper that paves is tested,
The distribution character of mineral aggregate at different location in the hopper that paves is observed in conjunction with image processing technique.Above-mentioned specific embodiment is this
One preferred embodiment of invention, be not for limiting implementation and scope of the claims of the invention, it is all according to the present invention
The equivalence changes and modification that content described in patent protection range is made should all include within the scope of present patent application.
Claims (7)
1. a kind of steep slope road section asphalt roller compaction process flow behavior indoor test device, it is characterised in that: the abrupt slope
Section asphalt roller compaction process flow behavior indoor test device include support (1), thermally conductive (2), the hopper that paves (3),
Idler wheel (4), roller fixing device, idler wheel device of rotation driving, control pressurer system (14) and hydraulic system (12)；It is described to lead
The upper surface of thermal station (2) is provided with the hopper that paves (3)；Described thermally conductive (2) one end is arranged on support (1), other end setting
On hydraulic system (12)；The hydraulic system (12) pushes thermally conductive (2) to be at an angle to the horizontal surface；The idler wheel (4)
It is movably arranged on thermally conductive (2) by roller fixing device；The idler wheel device of rotation driving is connected and drives with idler wheel (4)
Idler wheel (4) rolls in the hopper that paves (3)；Control pressurer system (14) way roller (4) applies pressure, and the direction of pressure is begun
Eventually perpendicular to plane where thermally conductive (2)；
The steep slope road section asphalt roller compaction process flow behavior indoor test device further includes movable plate (6), the work
One end of movable plate (6) is fixed on support (1), the other end pass sequentially through removable support (7) and movable support (8) with
Idler wheel (4) connection.
2. steep slope road section asphalt roller compaction process flow behavior indoor test device according to claim 1, special
Sign is: being provided with rotation axis (5) on the movable support (8)；The idler wheel (4) is sleeved on rotation axis (5) and around rotation
The axial-rotation of axis (5)；The control pressurer system (14) applies pressure to rotation axis (5), and the direction of the pressure is vertical always
The plane where thermally conductive (2)；The idler wheel device of rotation driving is connected with rotation axis (5) and drives rolling by rotation axis (5)
(4) are taken turns to roll in the hopper that paves (3).
3. steep slope road section asphalt roller compaction process flow behavior indoor test device according to claim 2, special
Sign is: the idler wheel device of rotation driving includes hawser (9), pulley (10) and coiling (13)；The one of the hawser (9)
End is connected with rotation axis (5), and the other end is wrapped on coiling (13) by pulley (10)；The hawser (9) passes through rotation axis
(5) idler wheel (4) are driven to roll in the hopper that paves (3).
4. steep slope road section asphalt roller compaction process flow behavior indoor test device according to claim 3, special
Sign is: the temperature controller for being provided with heating tube on thermally conductive (2) and being connected with heating tube.
5. steep slope road section asphalt roller compaction process flow behavior indoor test dress according to claim 1 to 4
It sets, it is characterised in that: the idler wheel (4) is one or two；When the idler wheel (4) is two, two idler wheels (4) are arranged same
On one axis；The spacing no more than 2cm is provided between two idler wheels (4).
6. steep slope road section asphalt roller compaction process flow behavior indoor test device according to claim 5, special
Sign is: the spacing between the outer edge of the idler wheel (4) and the inward flange of the hopper that paves (3) is 0.5cm.
7. steep slope road section asphalt roller compaction process flow behavior indoor test device according to claim 6, special
Sign is: the height of the hopper that paves (3) is 3 ~ 10cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610277949.5A CN105784546B (en) | 2016-04-30 | 2016-04-30 | A kind of steep slope road section asphalt roller compaction process flow behavior indoor test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610277949.5A CN105784546B (en) | 2016-04-30 | 2016-04-30 | A kind of steep slope road section asphalt roller compaction process flow behavior indoor test device |
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| Publication Number | Publication Date |
|---|---|
| CN105784546A CN105784546A (en) | 2016-07-20 |
| CN105784546B true CN105784546B (en) | 2019-02-26 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201196645Y (en) * | 2008-04-25 | 2009-02-18 | 长安大学 | Multifunctional track test apparatus |
| CN201199219Y (en) * | 2008-03-20 | 2009-02-25 | 山东省交通科学研究所 | Pouring type instrument for determining asphalt mixture flow degree |
| CN103323300A (en) * | 2013-05-14 | 2013-09-25 | 山西省交通科学研究院 | Test mold for realization of bottom constant temperature of rutting test piece |
| CN204855305U (en) * | 2015-07-29 | 2015-12-09 | 长沙矿冶研究院有限责任公司 | Fluid mobility tester |
| CN205719861U (en) * | 2016-04-30 | 2016-11-23 | 山西省交通科学研究院 | A kind of steep slope road section asphalt roller compaction process flow behavior indoor test device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7937246B2 (en) * | 2007-09-07 | 2011-05-03 | Board Of Regents Of The University Of Nebraska | Vertical track modulus trending |
-
2016
- 2016-04-30 CN CN201610277949.5A patent/CN105784546B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201199219Y (en) * | 2008-03-20 | 2009-02-25 | 山东省交通科学研究所 | Pouring type instrument for determining asphalt mixture flow degree |
| CN201196645Y (en) * | 2008-04-25 | 2009-02-18 | 长安大学 | Multifunctional track test apparatus |
| CN103323300A (en) * | 2013-05-14 | 2013-09-25 | 山西省交通科学研究院 | Test mold for realization of bottom constant temperature of rutting test piece |
| CN204855305U (en) * | 2015-07-29 | 2015-12-09 | 长沙矿冶研究院有限责任公司 | Fluid mobility tester |
| CN205719861U (en) * | 2016-04-30 | 2016-11-23 | 山西省交通科学研究院 | A kind of steep slope road section asphalt roller compaction process flow behavior indoor test device |
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| CN105784546A (en) | 2016-07-20 |
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