CN2800265Y - Tester for anti-shear performance of bituminous pavement structural layer - Google Patents
Tester for anti-shear performance of bituminous pavement structural layer Download PDFInfo
- Publication number
- CN2800265Y CN2800265Y CN 200520078763 CN200520078763U CN2800265Y CN 2800265 Y CN2800265 Y CN 2800265Y CN 200520078763 CN200520078763 CN 200520078763 CN 200520078763 U CN200520078763 U CN 200520078763U CN 2800265 Y CN2800265 Y CN 2800265Y
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- supporting seat
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Abstract
The utility model discloses an anti-shear tester for a structure layer of an asphalt road surface, which comprises a bottom supporting seat, a rolling test die which is arranged on the bottom supporting seat, spring frames which are connected with both ends of the bottom supporting seat, a platform which is supported on the spring frames, a bearing pressure frame which is connected with both ends of the platform, a counter-force frames which is connected with both ends of the bearing pressure frame, a rubber plate which is connected with the lower bottom surface of the platform, and a jack which is connected with the upper bottom surface of the platform, an intelligent program controller which is connected with the jack, a sliding connecting rail which is connected with one side of the bottom supporting seat, a motor which is connected with the other side of the bottom supporting seat, and a connector which leads the motor and the rolling test die to be connected, wherein the motor is connected with the intelligent program controller. The utility model is connected with the program controller and the motor through a data wire. The shearing force of the motor, which is used for pulling a road surface is input to the intelligent program controller through a connecting wire and the vertical pressure of the jack is input to the intelligent program controller through the connecting wire. The utility model has the advantages of simple and convenient operation and high reliability of test results. The utility model can well reacts the skid resistant performance of an actual road surface.
Description
Technical field
The utility model relates to a kind of road surface structare layer testing device for friction coefficient, detects friction factor newly-built, the reconstruction road deck, particularly a kind of asphalt pavement structural layer shear testing maschine.
Background technology
China is also resting on the structural behaviour stage that lays stress on the road surface aspect road (comprising highway, urban road and airfield runway and the hardstand etc.) construction, and road pavement security etc. are paid little attention to, and the research aspect pavement skid resistance condition is less relatively.Trace it to its cause: be because China's economic level is relatively low on the one hand, highway is built level and required relative also lower; On the other hand, China lacks advanced pavement skid resistance condition detection technique and equipment, lacks the technological means that the road pavement cling property is made accurate evaluation, is unfavorable for carrying out the research of this respect.Aspect pavement skid resistance condition detection and evaluation, the integrity problem of friction factor testing apparatus performance is had outstanding performance at present.It is many to be used for the number of devices that road surface and airfield pavement friction factor detect at present, and also each is different for type.The fixed-point type testing apparatus is arranged, as portable pendulum tester: the continous way testing apparatus is arranged, as SCRIM, Saab etc.But, factor affecting such as test result tested person condition, environment and operating process of some equipment and show relatively poor stability wherein, and the test result of some equipment can not reflect the actual cling property in road surface truly.
Summary of the invention
The purpose of this utility model is to provide a kind of asphalt pavement structural layer shear test machine, and its stability is strong, measures accurately the degree of accuracy height.
The technical solution adopted in the utility model is: the utility model comprises end bearing, on the end bearing rolling test mould is arranged, and the two ends of end bearing connect spring(-supported) mount, spring(-supported) mount upper support platform, the platform two ends connect branching rack, connect reaction frame on the branching rack, and the platform bottom surface connects rubber slab, upper bottom surface is connected with lifting jack, lifting jack links to each other with intelligent program-controlled device, one of the end bearing rail that is dynamically connected that breaks away, and opposite side connects motor, motor is connected with rolling test mould by connector, and motor connects intelligent program-controlled device.
The utility model connects program controller and motor by data line, the shearing force on motor drawing road surface is input to intelligent program-controlled device by connecting line, the pressure at right angle of lifting jack also is input to intelligent program-controlled device by connecting line, the utility model is simple to operation, test result reliability is strong, can react the cling property on actual road surface well.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing content of the present utility model is described in further details:
Asphalt pavement structural layer shear test machine, comprise end bearing 14, rolling test mould 8 is arranged on the end bearing 14, the two ends of end bearing 14 connect spring(-supported) mount 13, spring(-supported) mount 13 upper support platforms 6, platform 6 two ends connect branching rack 12, connect reaction frame 3 on the branching rack 12, platform 6 bottom surfaces connect rubber slab 7, and upper bottom surface is connected with lifting jack 5, and lifting jack 5 links to each other with intelligent program-controlled device 1, one of end bearing 14 rail 15 that is dynamically connected that breaks away, opposite side connects motor 4, and motor 4 is connected with rolling test mould 8 by connector 9, and motor 4 connects intelligent program-controlled device 1.Intelligent program-controlled device 1 can be arranged on the reaction frame 3, and the 2nd, data line, the 10th, connecting line, the 11st, screw.
Test specimen to be measured is put into rolling test mould 8, screw up with a wrench, send into testing machine by rail 15, rolling test mould 8 one ends are connected on the motor 4 by connector 9, motor 4 application of forces pass to rolling test mould 8 to power by connector 9, in drawing process, will form reacting force (horizontal shear of promptly bearing) to the friction of test specimen by connector 9.At first be to carry out motor playback work after the energising, display parameter input after playback work is finished, this moment, the user can import used numbering and speed by code switch.After numbering and speed input are correct, the test specimen on the rolling test mould 8 is placed to the preparation position, and request input positive pressure value, as: 20.00KN.Utilize lifting jack 5 that rubber slab 7 is pressed onto on the test specimen of the rolling test mould 8 that installs then, provide vertical positive power by lifting jack 5, this moment, intelligent program-controlled device 1 can show this value.Under ready state, start, begin to search for stress point, at this moment screen display " Search Strength ".After detecting stress point, promptly begin drawing automatically and cut, Displacement Measurement and draw shearing simultaneously, and on intelligent program-controlled device 1, show in real time.Draw when cutting, first behavior is drawn and is cut maximum pulling force and corresponding displacement thereof on the screen, and second row shows the current shearing and the displacement of cutting of drawing, and the third line shows to draw to be cut the time of usefulness.When finding that pulling force begins to descend (shearing of current point be maximum shear 80%), stop to draw and cut, get the maximal value shearing.
The cling property of experimental test novel asphalt top dressing, two kinds of pitch employing matrix pitch and SBS remodeling pitches, geotextile adopts just grows fine 300g/m
2With short fiber 300g/m
2And long fine 200g/m
2With short fiber 200g/m
2Four kinds.Test result is basicly stable, and promptly the test specimen of same material is tested, and its discreteness is littler than the equipment such as the portable pendulum tester of traditional testing friction coefficient.
Claims (2)
1, asphalt pavement structural layer shear test machine, comprise end bearing (14), rolling test mould (8) is arranged on the end bearing (14), it is characterized in that, the two ends of end bearing (14) connect spring(-supported) mount (13), spring(-supported) mount (13) upper support platform (6), platform (6) two ends connect branching rack (12), branching rack (12) is gone up and is connected reaction frame (3), and platform (6) bottom surface connects rubber slab (7), and upper bottom surface is connected with lifting jack (5), lifting jack (5) links to each other with intelligent program-controlled device (1), end bearing (14) connects motor (4), and motor (4) is connected with rolling test mould (8) by connector (9), and motor (4) connects intelligent program-controlled device (1).
2, asphalt pavement structural layer shear test machine according to claim 1 is characterized in that, one of bearing of the described end (14) rail (15) that is dynamically connected that breaks away.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520078763 CN2800265Y (en) | 2005-05-12 | 2005-05-12 | Tester for anti-shear performance of bituminous pavement structural layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520078763 CN2800265Y (en) | 2005-05-12 | 2005-05-12 | Tester for anti-shear performance of bituminous pavement structural layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2800265Y true CN2800265Y (en) | 2006-07-26 |
Family
ID=36842762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520078763 Expired - Fee Related CN2800265Y (en) | 2005-05-12 | 2005-05-12 | Tester for anti-shear performance of bituminous pavement structural layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2800265Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923044A (en) * | 2010-07-27 | 2010-12-22 | 长安大学 | GF (Gravity Force) multifunctional story-force tester |
| CN103983568A (en) * | 2014-06-11 | 2014-08-13 | 招商局重庆交通科研设计院有限公司 | Accelerated polishing test method of bituminous mixture specimen |
| CN104198371A (en) * | 2014-09-04 | 2014-12-10 | 北京航空航天大学 | Plate friction performance testing device for providing thickness direction stress through fluid pressure and application of plate friction performance testing device |
| CN104655557A (en) * | 2013-11-21 | 2015-05-27 | 交通运输部科学研究院 | Equipment for measuring interlamellar jointing direct shear resistance between asphalt surface course and semi-rigid base |
| CN104849210A (en) * | 2015-05-15 | 2015-08-19 | 山西省交通科学研究院 | Method for determining interlayer equivalent shear stiffness between base layer and surface layer of cement concrete pavement and horizontal shear tester |
| CN105021453A (en) * | 2015-08-13 | 2015-11-04 | 哈尔滨工业大学 | Test device for bituminous mixture accelerated loading and bituminous mixture anti-slide performance |
| CN106053317A (en) * | 2016-06-13 | 2016-10-26 | 同济大学 | Unsaturated garbage soil bidirectional gas permeability coefficient determinator |
-
2005
- 2005-05-12 CN CN 200520078763 patent/CN2800265Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923044A (en) * | 2010-07-27 | 2010-12-22 | 长安大学 | GF (Gravity Force) multifunctional story-force tester |
| CN104655557A (en) * | 2013-11-21 | 2015-05-27 | 交通运输部科学研究院 | Equipment for measuring interlamellar jointing direct shear resistance between asphalt surface course and semi-rigid base |
| CN104655557B (en) * | 2013-11-21 | 2018-03-02 | 交通运输部科学研究院 | The equipment that measurement asphalt surface course is coupled anti-staight scissors performance with semi-rigid type base interlayer |
| CN103983568A (en) * | 2014-06-11 | 2014-08-13 | 招商局重庆交通科研设计院有限公司 | Accelerated polishing test method of bituminous mixture specimen |
| CN104198371A (en) * | 2014-09-04 | 2014-12-10 | 北京航空航天大学 | Plate friction performance testing device for providing thickness direction stress through fluid pressure and application of plate friction performance testing device |
| CN104849210A (en) * | 2015-05-15 | 2015-08-19 | 山西省交通科学研究院 | Method for determining interlayer equivalent shear stiffness between base layer and surface layer of cement concrete pavement and horizontal shear tester |
| CN105021453A (en) * | 2015-08-13 | 2015-11-04 | 哈尔滨工业大学 | Test device for bituminous mixture accelerated loading and bituminous mixture anti-slide performance |
| CN106053317A (en) * | 2016-06-13 | 2016-10-26 | 同济大学 | Unsaturated garbage soil bidirectional gas permeability coefficient determinator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |