CN112525740A - Rut test device and double-wheel dynamic stability calculation method - Google Patents
Rut test device and double-wheel dynamic stability calculation method Download PDFInfo
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- CN112525740A CN112525740A CN202010699673.6A CN202010699673A CN112525740A CN 112525740 A CN112525740 A CN 112525740A CN 202010699673 A CN202010699673 A CN 202010699673A CN 112525740 A CN112525740 A CN 112525740A
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- 238000012360 testing method Methods 0.000 title claims abstract description 97
- 238000004364 calculation method Methods 0.000 title abstract description 6
- 239000010426 asphalt Substances 0.000 claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000000203 mixture Substances 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 16
- 238000012935 Averaging Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000002474 experimental method Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 abstract description 3
- 239000002344 surface layer Substances 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/36—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by pneumatic or hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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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
- G01N3/56—Investigating resistance to wear or abrasion
- G01N3/567—Investigating resistance to wear or abrasion by submitting the specimen to the action of a fluid or of a fluidised material, e.g. cavitation, jet abrasion
-
- 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
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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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
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
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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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
-
- 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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0228—Low temperature; Cooling means
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention aims to provide a rut test device and a double-wheel dynamic stability calculation method, which comprise a box body, a test mold, a liftable test component matched with the test mold and a water supply component, wherein the box body is provided with a plurality of grooves; the test die and the liftable test component are arranged in the box body; the method is characterized in that: the test mold comprises a baffle plate and an asphalt mixture; wherein the baffle is disposed at one end of the bituminous mixture; the output end of the water supply assembly is connected with one end of the baffle; wherein, a gap is arranged between the baffle and the end part of the asphalt mixture, and the gap is used for uniformly arranging the liquid pressure at the output end of the water supply assembly at the end part of the asphalt mixture. According to the invention, water movement in asphalt is formed through the water pressure difference formed by the cavity and the waterproof layer on the surface layer, and then a rutting experiment with different pressures causes a two-dimensional pressure effect, so that the experimental effect of the fatigue damage condition of the asphalt is improved.
Description
Technical Field
The invention relates to the technical field of rut test devices, in particular to a rut test device and a double-wheel dynamic stability calculation method.
Background
Ruts are an important form of failure in asphalt pavements. With the increase of temperature in summer and the increase of automobile load and the influence of traffic canalization, the rutting of the asphalt pavement, particularly at intersections and BRT special lanes, is particularly serious. Generally, in China, the anti-rutting capability of an asphalt pavement is evaluated through a rutting test, but the anti-rutting capability of an actual asphalt pavement material is difficult to accurately simulate through a conventional rutting test.
For this purpose, document No. 201820026893.0, which uses sand bath heating, makes it possible to analyze the damage of the pavement at different temperatures. The speed of the wheels can be measured by controlling the dc motor to measure the effect of road damage at different speeds. And the wheel pressure can be controlled by adding a balance weight on the vertical rod, and is used for researching the influence of the wheel pressure on the road surface damage.
Application number is 201720290756.3's file, discloses a rut test base of adjustable height, and this utility model is equipped with the spiral support, its distance between regulation roof and the bottom plate that can be free for there is sufficient space to satisfy the requirement of different thickness rut board experiments on the roof, accomplishes the unity of actual road surface structure and experimental rut board thickness, and the accuracy is high, improves experimental research's scientificity and rigidness.
The rut experimental instrument improves the accuracy of the rut test, but because the actually used asphalt pavement is in a complex external environment, the water flow in the asphalt pavement can aggravate the rut diseases of the asphalt pavement; in addition, at intersections and other positions, the track diseases of the asphalt pavement are relatively serious, and the braking of the vehicle mainly generates larger horizontal shearing force on the asphalt pavement.
Therefore, a rut test device meeting complex conditions needs to be researched and developed urgently.
Disclosure of Invention
The invention aims to provide a rut testing device and a double-wheel dynamic stability calculating method, which can effectively solve the technical problems.
The technical scheme adopted by the invention for solving the technical problems is as follows: a rut test device comprises a box body, a test mold, a liftable test component and a water supply component, wherein the liftable test component is matched with the test mold; the test die and the liftable test component are arranged in the box body; the method is characterized in that: the test mold comprises a baffle plate and an asphalt mixture;
wherein the baffle is disposed at one end of the bituminous mixture; the output end of the water supply assembly is connected with one end of the baffle; wherein, a gap is arranged between the baffle and the end part of the asphalt mixture, and the gap is used for uniformly arranging the liquid pressure at the output end of the water supply assembly at the end part of the asphalt mixture.
And a temperature unit for heating/refrigerating is also arranged in the test mould.
The water supply assembly comprises a water supply pump and a water outlet pipeline; wherein the output end of the water supply pump is connected with one end of the asphalt mixture provided with the baffle; wherein the water outlet pipeline is arranged at the other end of the asphalt mixture.
The rutting test device also comprises 2 or more than 3 inclination adjusting assemblies arranged below the asphalt mixture; wherein, the inclination adjusting component comprises a hydraulic cylinder, a base and a connecting rod; the hydraulic cylinder is arranged on the ground through a base; a piston rod of the hydraulic cylinder is connected with one end of the connecting rod; the other end of the connecting rod is rotatably connected with the asphalt mixture.
A rut test device also comprises a control assembly; wherein, the control component comprises a computer end and a sensor; the computer end is electrically connected with the liftable test component and is used for controlling the lifting of the liftable test component; the computer end is electrically connected with the sensor and used for detecting the temperature of the test mold.
A method for calculating double-wheel dynamic stability comprises the following steps:
s1, carrying out single-wheel track test through a single-wheel track fixing mechanism;
s2, recording the rut depths Sa and Sb of T1 and T2 respectively; averaging Sa and Sb to obtain the average depth H1 of the single wheel rut;
s3, under the same condition, carrying out double-wheel track test through a double-wheel track fixing mechanism;
s4, recording the rutting depths Sc at the time of T1, and recording the rutting depths Se and Sf at the time of Sd and T2 respectively;
then, respectively averaging the Sc, Sd, Se and Sf to obtain Sm and Sn, and then averaging the Sm and Sn to obtain the double-wheel rut average depth H2;
s5, constructing a rut influence coefficient:
a=H2/H1；
wherein the rutting influence coefficient a is inversely proportional to the stability of the asphalt mixture.
The invention has the beneficial effects that: the invention has the following advantages:
the method simulates the actual state of the asphalt pavement in the rainwater through the gaps; asphalt pavement can form the relevant running water effect at the in-process of rainwater scouring, especially the in-process of slope, the scouring in-process of groundwater and rainwater, can form certain dynamic loading effect to pitch inner structure, causes the fatigue damage of pitch. According to the invention, water movement in asphalt is formed through the water pressure difference formed by the cavity and the waterproof layer on the surface layer, and then a rutting experiment with different pressures causes a two-dimensional pressure effect, so that the experimental effect of the fatigue damage condition of the asphalt is improved.
2. The different slopes can be adjusted to the examination mould of the rut in the rut experimentation, and then can effectively detect the vehicle and meet under the condition of different slopes, because the acceleration of car and the problem of the pitch rut on the slope that the land fertility of grabbing causes is different.
3. The experimental analysis can be carried out on the braking distance of the asphalt brake of the pavement with different pore water pressures and the braking abrasion degree of the asphalt in the braking process.
4. The asphalt pavement is processed by utilizing the refrigerating and heating elements, and the asphalt pavement damage structure under the temperature action and the water two-phase change action can be researched.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the baffle plate in fig. 1.
Fig. 3 is a top view of fig. 2.
Fig. 4 is a block diagram of the control unit.
FIG. 5 is a flow chart of a method of dual-wheel dynamics stability calculation.
Fig. 6 is a schematic view of the connection between the pin shaft and the connecting rod.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
At present, a certain gap exists in the asphalt mixture 203, and if high-pressure water is used for directly supplying water, the pressure of water flow at the input end of the asphalt mixture 203 is unbalanced due to different sizes of the gap in the asphalt mixture 203, so that the water flow at the output end of the asphalt mixture 203 is uneven, and the actual application scene cannot be simulated.
Referring to fig. 1, a rut test device comprises a box body 1, a test mold 2, a liftable test component 3 matched with the test mold 2, a water supply component 4, 2 or more than 3 inclination adjusting components 5 and a control component 6. The test mould 2 and the liftable test component 3 are arranged in the box body 1 and used for carrying out a rutting test.
The test mold 2 comprises a baffle 202 and an asphalt mixture 203; the box body 1 can enable the rut meter to simulate the rut resistance of the asphalt mixture under the conditions of high temperature, severe cold and freeze thawing; wherein the baffle 202 is disposed at one end of the asphalt mixture 203; the output end of the water supply assembly 4 is connected with one end of the baffle plate 203.
Preferably, as shown in fig. 2 to 4, in order to equalize the water flow pressure, a gap 201 is provided between the baffle 202 and the end of the asphalt mixture 203, the gap 201 is provided at the end of the asphalt mixture 203 or at both ends of the asphalt mixture 203 for equalizing the liquid pressure at the output end of the water supply assembly 4, and the water input into the asphalt mixture 203 and the water output from the asphalt mixture 203 are equalized.
Preferably, the test mold 2 is a rectangular steel test mold, and the size is a rectangle with the length of 300mm, the width of 500 mm and the height of 50-100 mm.
For waterproofing, a waterproof layer is provided on the outer surface of the side of the asphalt mixture 203 close to the liftable test member 3.
In order to simulate cold winter and hot summer, a temperature unit 204 for heating/cooling is also arranged in the test mold 2;
the temperature unit 204 is composed of independently arranged heating pipes and cooling pipes, a plurality of rows of independent cooling pipes and heating pipes can be arranged on the periphery and the bottom of the test mold 2, and the lower the refrigeration control temperature of the cooling pipes is along with the increase of the depth of the test mold 2, so that the rutting test of the asphalt pavement under the freeze-thaw condition from the bottom to the different temperature fields of the asphalt pavement can be simulated.
Preferably, the heating pipe and the cooling pipe can be electrically connected with the control component 6 and controlled by a computer.
The water supply assembly 4 comprises a water supply pump 401 and a water outlet pipeline 402; wherein, the output end of the water supply pump 401 provides high-pressure water flow to be connected with one end of the asphalt mixture 203 provided with the baffle 203; wherein the water outlet line 402 is arranged at the other end of the bituminous mixture 203. Due to the presence of the void 201, the water pressure strokes an equalized pressure across the pitch mixture 203.
The liftable test assembly 3 comprises a vertical lifting support 301, a single-wheel rut fixing mechanism 302 and a double-wheel rut fixing mechanism 303; wherein, single-wheel rut fixing mechanism 302 and double-wheel rut fixing mechanism 303 set up on vertical lift bracket 301 simultaneously. The vertical lifting bracket 301 may be a hydraulic mechanism, and the hydraulic mechanism may also be electrically connected to the control assembly 6 and controlled by a computer.
The tilt adjustment assembly 5 comprises a hydraulic cylinder 501, a base 502 and a connecting rod 503; the hydraulic cylinder 501 is arranged on the ground through a base 502; a piston rod of the hydraulic cylinder 501 is connected with one end of a connecting rod 503; the other end of the connecting rod 503 is rotatably connected to the asphalt mixture 203.
The hydraulic cylinder 501 can adjust the height, so that the test die 2 can adjust the transverse gradient and the longitudinal gradient, wherein the adjustment range of the transverse gradient is 0-13%, and the adjustment range of the longitudinal gradient is 0-11%.
The control component 6 comprises a computer terminal 601 and a sensor 602; the computer end 601 is electrically connected with the liftable test component 3 and is used for controlling the liftable test component 3 to ascend and descend; wherein, the computer end 601 is electrically connected with the sensor 602 and is used for detecting the temperature of the test mold 2; the test model is provided with more than 2 sensors 602 at different heights for detecting the temperature field of the test piece from the bottom to the face.
As shown in fig. 5, a method for calculating a dual-wheel dynamics stability includes the following steps:
s1, carrying out a single-wheel rut test through a single-wheel rut fixing mechanism 302;
s2, recording the rut depths Sa and Sb of T1 and T2 respectively; averaging Sa and Sb to obtain the average depth H1 of the single wheel rut;
s3, under the same condition, carrying out double-wheel rut test through a double-wheel rut fixing mechanism 303;
s4, recording the rutting depths Sc at the time of T1, and recording the rutting depths Se and Sf at the time of Sd and T2 respectively;
then, respectively averaging the Sc, Sd, Se and Sf to obtain Sm and Sn, and then averaging the Sm and Sn to obtain the double-wheel rut average depth H2;
s5, constructing a rut influence coefficient:
a=H2/H1；
wherein the rutting influence coefficient a is inversely proportional to the stability of the bituminous mixture 203.
The method is closer to the actual vehicle double-wheel load of the asphalt pavement, can test the wheel braking anti-lock system, has the slippage rate of the test wheel of 0-100 percent, can complete the rut test under different slippage rates, and can realize the simulation of ruts caused by the vehicle braking at the road intersection.
Specific example I: as shown in fig. 6, a plurality of pins 201A are welded on the outer side of the asphalt mixture 203; the top of the connecting rod 503 is provided with a groove matched with the pin shaft 201A; in use, the pin 201A is placed in the groove to form the rotatable test mold 2.
The invention can also be used for:
1. designing the slopes of a longitudinal slope and a transverse slope of the road surface, adjusting the slope of a rut test through calculation, and installing a test mold for testing;
2. setting the slip rate of the test wheel, and carrying out a rut test under the set slip rate;
3. and setting the output of the water pump, and performing a rut test under the action of different flowing water.
The invention can realize the rutting test of the asphalt mixture under different cross slopes and longitudinal slopes, the rutting test of the asphalt mixture under the action of different flowing water flows and the rutting test of the asphalt mixture under different slippage rate test wheel conditions.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily change or replace the present invention within the technical scope of the present invention, and the present invention is within the scope of the present invention. Therefore, the protection scope of the present invention is subject to the protection scope of the claims.
Claims (10)
1. A rut test device comprises a box body, a test mold, a liftable test component and a water supply component, wherein the liftable test component is matched with the test mold; the test die and the liftable test component are arranged in the box body; the method is characterized in that:
the test mold comprises a baffle plate and an asphalt mixture;
wherein the baffle is disposed at one end of the bituminous mixture; the output end of the water supply assembly is connected with one end of the baffle;
wherein, a gap is arranged between the baffle and the end part of the asphalt mixture, and the gap is used for uniformly arranging the liquid pressure at the output end of the water supply assembly at the end part of the asphalt mixture.
2. The rut testing device according to claim 1, wherein a temperature unit for heating/cooling is further provided in the test mold.
3. The rut testing apparatus according to claim 1, wherein the water supply assembly comprises a water supply pump and a water outlet pipeline;
wherein the output end of the water supply pump is connected with one end of the asphalt mixture provided with the baffle;
wherein the water outlet pipeline is arranged at the other end of the asphalt mixture.
4. The rut testing device according to claim 1, wherein the liftable testing component comprises a vertical lifting bracket, a single-wheel rut fixing mechanism and a double-wheel rut fixing mechanism;
the single-wheel track fixing mechanism and the double-wheel track fixing mechanism are arranged on the vertical lifting support simultaneously.
5. A rut testing apparatus according to claim 1, 2, 3 or 4, further comprising 2 or more than 3 pitch adjustment assemblies disposed below the asphalt mixture;
wherein, the inclination adjusting component comprises a hydraulic cylinder, a base and a connecting rod;
the hydraulic cylinder is arranged on the ground through a base; a piston rod of the hydraulic cylinder is connected with one end of the connecting rod; the other end of the connecting rod is rotatably connected with the asphalt mixture.
6. The rut testing device according to claim 5, wherein the outer side of the asphalt mixture is provided with a pin; the top of the connecting rod is provided with a groove matched with the pin shaft.
7. The rut testing apparatus of claim 1, further comprising a control assembly;
wherein, the control component comprises a computer end and a sensor;
the computer end is electrically connected with the liftable test component and is used for controlling the lifting of the liftable test component;
the computer end is electrically connected with the sensor and used for detecting the temperature of the test mold.
8. The rut testing device according to claim 7, wherein the test mold is provided with more than 2 sensors at different heights for detecting the temperature field from the bottom to the face of the test piece.
9. The rut test device according to claim 1, wherein a waterproof layer is disposed on the outer surface of the asphalt mixture on the side close to the liftable test assembly.
10. A method for calculating the double-wheel dynamic stability is characterized by comprising the following steps:
s1, carrying out single-wheel track test through a single-wheel track fixing mechanism;
s2, recording the rut depths Sa and Sb of T1 and T2 respectively; averaging Sa and Sb to obtain the average depth H1 of the single wheel rut;
s3, under the same condition, carrying out double-wheel track test through a double-wheel track fixing mechanism;
s4, recording the rutting depths Sc at the time of T1, and recording the rutting depths Se and Sf at the time of Sd and T2 respectively;
then, respectively averaging the Sc, Sd, Se and Sf to obtain Sm and Sn, and then averaging the Sm and Sn to obtain the double-wheel rut average depth H2;
s5, constructing a rut influence coefficient:
a=H2/H1；
wherein the rutting influence coefficient a is inversely proportional to the stability of the asphalt mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010699673.6A CN112525740A (en) | 2020-07-20 | 2020-07-20 | Rut test device and double-wheel dynamic stability calculation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010699673.6A CN112525740A (en) | 2020-07-20 | 2020-07-20 | Rut test device and double-wheel dynamic stability calculation method |
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| CN112525740A true CN112525740A (en) | 2021-03-19 |
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| CN202010699673.6A Pending CN112525740A (en) | 2020-07-20 | 2020-07-20 | Rut test device and double-wheel dynamic stability calculation method |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6125685A (en) * | 1997-09-30 | 2000-10-03 | The Board Of Trustees Of The University Of Arkansas | Apparatus and method for the evaluation of asphalt mixes |
| CN201045608Y (en) * | 2007-06-05 | 2008-04-09 | 西安公路养护技术工程研究中心有限公司 | Heavy duty slope asphalt mixture rut tester |
| CN101281190A (en) * | 2008-04-25 | 2008-10-08 | 长安大学 | Multifunctional wheel rutting test |
| CN101666727A (en) * | 2009-10-19 | 2010-03-10 | 哈尔滨工业大学 | Track testing apparatus of indoor small-size annular asphalt pavement structure |
| CN102279253A (en) * | 2011-03-31 | 2011-12-14 | 长沙理工大学 | Multifunctional rut testing machine used for simulating road surface actual state |
| CN103323381A (en) * | 2013-06-09 | 2013-09-25 | 河海大学 | Method for evaluating attenuation degree of porous asphalt mixture void |
| JP2015190203A (en) * | 2014-03-28 | 2015-11-02 | 株式会社Ｎｉｐｐｏ | Asphalt pavement body and construction method therefor |
| WO2016088469A1 (en) * | 2014-12-05 | 2016-06-09 | 株式会社堀場製作所 | Drive train testing apparatus |
| CN105784518A (en) * | 2016-04-26 | 2016-07-20 | 长安大学 | Experiment device and method for evaluating furrow resistant properties of structural layer of asphalt pavement |
| CN106093360A (en) * | 2016-08-01 | 2016-11-09 | 山西省交通科学研究院 | The asphalt pavement rut tester of a kind of simulated rainfall and test method thereof |
| CN108614094A (en) * | 2018-05-12 | 2018-10-02 | 张中华 | The experimental rig and method of performance of asphalt mixture under load-osmotic pressure coupling |
-
2020
- 2020-07-20 CN CN202010699673.6A patent/CN112525740A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6125685A (en) * | 1997-09-30 | 2000-10-03 | The Board Of Trustees Of The University Of Arkansas | Apparatus and method for the evaluation of asphalt mixes |
| CN201045608Y (en) * | 2007-06-05 | 2008-04-09 | 西安公路养护技术工程研究中心有限公司 | Heavy duty slope asphalt mixture rut tester |
| CN101281190A (en) * | 2008-04-25 | 2008-10-08 | 长安大学 | Multifunctional wheel rutting test |
| CN101666727A (en) * | 2009-10-19 | 2010-03-10 | 哈尔滨工业大学 | Track testing apparatus of indoor small-size annular asphalt pavement structure |
| CN102279253A (en) * | 2011-03-31 | 2011-12-14 | 长沙理工大学 | Multifunctional rut testing machine used for simulating road surface actual state |
| CN103323381A (en) * | 2013-06-09 | 2013-09-25 | 河海大学 | Method for evaluating attenuation degree of porous asphalt mixture void |
| JP2015190203A (en) * | 2014-03-28 | 2015-11-02 | 株式会社Ｎｉｐｐｏ | Asphalt pavement body and construction method therefor |
| WO2016088469A1 (en) * | 2014-12-05 | 2016-06-09 | 株式会社堀場製作所 | Drive train testing apparatus |
| CN105784518A (en) * | 2016-04-26 | 2016-07-20 | 长安大学 | Experiment device and method for evaluating furrow resistant properties of structural layer of asphalt pavement |
| CN106093360A (en) * | 2016-08-01 | 2016-11-09 | 山西省交通科学研究院 | The asphalt pavement rut tester of a kind of simulated rainfall and test method thereof |
| CN108614094A (en) * | 2018-05-12 | 2018-10-02 | 张中华 | The experimental rig and method of performance of asphalt mixture under load-osmotic pressure coupling |
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