CN206515161U - A kind of plate-type ballastless track adhesive property test devices of CRTS III - Google Patents
A kind of plate-type ballastless track adhesive property test devices of CRTS III Download PDFInfo
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- CN206515161U CN206515161U CN201621252658.2U CN201621252658U CN206515161U CN 206515161 U CN206515161 U CN 206515161U CN 201621252658 U CN201621252658 U CN 201621252658U CN 206515161 U CN206515161 U CN 206515161U
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- adhesive property
- shear box
- ballastless track
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Abstract
The utility model discloses a kind of plate-type ballastless track adhesive property test devices of CRTS III, including horizontal loading system, mainframe, shear box, vertical loading system and displacement acquisition system, the shear box is used to place test test specimen, and opening upwards are arranged on the mainframe bottom plate；The horizontal loading system is horizontally arranged on the mainframe in the shear box side, it is possible to apply horizontal loading to test specimen with certain loading velocity；The vertical loading system is in directly over the shear box and is vertically installed on the top plate of the mainframe, for applying constant vertical load to test specimen；The displacement acquisition system is acquired to test specimen slide displacement data.The utility model is simple in construction, simple operation, can simulate ballastless track structure engineering actual loading operating mode, is capable of the adhesive property of fast and accurately test evaluation precast track plate and self-compacting concrete packed layer.
Description
Technical field
The utility model is related to a kind of concrete material adhesive property test device, and in particular to a kind of board-like nothings of CRTS III
Tiny fragments of stone, coal, etc. track adhesive property test device.
Background technology
CRTSIII plate-type non-fragment orbits are one of primary trace structural shapes of the newly-built high-speed railway of China.China is high
Fast railway CRTSIII plate-type non-fragment orbits are to be based on CRTSI plate-types non-fragment orbit, CRTS II plate-type non-fragment orbit skills
Art research and application experience, and develop and have on the basis of the domestic and international ballastless track of high-speed railway systems technology of analysis and summary
A kind of novel high speed railway ballastless track structural system [1] of entirely autonomous intellectual property.The high-speed railway of China's independent research
The not only perfect China Express Railway non-fragment orbit technical system of CRTSIII plate-type ballastless track structures, also further lifting
The Technical Economy and durability of non-fragment orbit, its structural shape are as shown in Figure 1.
As shown in Figure 1, CRTSIII plate-types ballastless track structure is filled by concrete support layer 18, self-compacting concrete
Layer 17, precast track plate 16 and fastener and rail composition, wherein self-compacting concrete packed layer 17 are located at supporting layer 18 and pre-
Between track plates 16 processed, adjustment, support and power transmission function are undertaken.And under arms during due to temperature stress, fatigue load and
Cohesive force of the self-compacting concrete with track plates in itself is weak, causes to separate between track plates and self-compacting concrete filling layer,
Referred to as track structure interlayer gap.Gap can cause Rail inspection to change, under the repeated action of train load, will
Self-compacting concrete packed layer " is patted " repeatedly, so as to cause self-compacting concrete to fill damage layer, even results in non-fragment orbit
Thrashing.This requires there is good adhesive property between self-compacting concrete packed layer and precast track plate.Therefore, close
The adhesive property that reason is evaluated between self-compacting concrete packed layer and track plates seems particularly critical.
The adhesive property of self-compacting concrete packed layer and track plates, its essence is exactly the adhesion problem of New-old concrete.
Domestic and foreign scholars have carried out more valuable work with regard to the quantitative test of Mechanics Performance of Adherence of New performance and evaluation, and propose
Some method of testings [2-4], such as hubbing, split the law, staight scissors method, tiltedly cut method, curved daraf(reciprocal of farad) and push type shearing method test side
Method.But these method of testings can not be to making standard in the adhesive property of actual loading operating mode lower rail guidance tape and self-compacting concrete
Really evaluate.For CRTSIII plate-type ballastless track structure precast track plates and self-compacting concrete packed layer adhesive property section
, the problem of quantitative assessment, glue the utility model proposes a kind of test evaluation precast track plate and self-compacting concrete packed layer
The experimental rig of performance is tied, so as to correctly evaluate the adhesive property of precast track plate and self-compacting concrete, it is ensured that high-speed railway
Ballastless track structure military service performance and operation security.
Bibliography：
[1] what Hua Wu, ballastless track technology, Beijing:China Railway Press, 2005,1-30.
[2] Momayez A, Ehsani M R, Ramezanianpour A A, Comparison of methods for
Evaluat ing bond strength between concrete substrate and repair materials [J],
Cement and Concrete Research,2005,35(4):748-757。
[3] Tian Wenling, Zhao Zhifang, State of Zhao's fence wait the bonding mechanism and Study on Test Method summary [J] of New-old concretes,
Hebei College of Science and Engineering's journal, 1998,20 (1):84-93.
[4] bonding-slip property [J] of Chen Feng, Zheng Jianlan, self-compacting concrete and old concrete, Chang An University is learned
Report:Natural science edition, 2010 (6):56-60.
Utility model content
The purpose of this utility model is to provide a kind of plate-type ballastless track adhesive property test devices of CRTS III, the device
Simple in construction, simple operation, can simulate ballastless track structure engineering actual loading operating mode, can fast and accurately test and comment
The adhesive property of valence orbit plate and self-compacting concrete packed layer.
In order to solve the above technical problems, the plate-type ballastless track adhesive properties of CRTS III test dress provided by the utility model
Put, including horizontal loading system, mainframe, shear box, vertical loading system and displacement acquisition system, the shear box is for putting
Put the double-layered test specimen being made up of self-compacting concrete packed layer and track flaggy, opening upwards are fixedly mounted on the master
On framework soleplate；The horizontal loading system is horizontally arranged on the mainframe in the shear box side, it is possible to
Certain loading velocity applies horizontal loading to test specimen；The surface that the vertical loading system is in the shear box is vertically-mounted
On the top plate of the mainframe, for applying constant vertical load to test specimen；The displacement acquisition system slides position to test specimen
Data are moved to be acquired.
The horizontal loading system is by cross cylinder, cylinder rack, horizontal pressure force sensor, pressure end and hydraulic servo control
System composition processed, the cylinder rack is fixedly mounted on the mainframe bottom plate in shear box side, the cross cylinder peace
It is connected in the cylinder rack and with hydraulic servo control system；The piston rod external part of cross cylinder is passed by horizontal pressure force
One end of sensor and pressure end is coaxially connected, another side wall rectified to test specimen of pressure end.
The vertical loading system is made up of master cylinder, vertical pressure sensor and top board；The top board is arranged on
The surface of the shear box, upper end is connected by vertical pressure sensor with the piston rod of the master cylinder；The master cylinder
On the top plate for being vertically installed at the mainframe.
The displacement acquisition system is the raster pattern displacement measuring device on the mainframe.
The top board bottom is provided with some dovetail type rolling guide blocks.
The both sides of the top board are installed with guide rod, the top plate with guide rod position corresponding position provided with guiding
Hole, the guide rod is slidably socketed in the pilot hole.
The shear plate of downward opening L-shaped structure is provided between the shear box and the top board；The shear plate
Side plate it is corresponding with the pressure end position.
The utility model is built as background with CRTSIII plate-types non-fragment orbit, solves accurate quantitative analysis and evaluates CRTSIII types
The technical barrier of platy ballastless track structure middle orbit plate and self-compacting concrete packed layer adhesive property, it is ensured that CRTSIII types
The military service performance of platy ballastless track structure well.
Science, validity and its comparison with existing method of testing of test device：
The present apparatus is the actual features based on CRTSIII plate-type ballastless track structures, and combines actual condition, by big
Engineering site investigation and laboratory test are measured, simulation actual field pours the construction technology shaping test piece of self-compacting concrete, to hard
The adhesive property of overlapping test specimen after change carries out quantitative assessment, therefore the present apparatus has significant reasonability and science.Meanwhile,
To the hubbing of the present apparatus and original evaluation adhesive property, split the law, staight scissors method, tiltedly cut method, curved daraf(reciprocal of farad) and push type shearing method
Compare, the utility model design designs vertical loading system and horizontal displacement acquisition system for the deficiency of existing method of testing,
Can not only have pointedly analog orbit plate and self-compacting concrete packed layer actual loading operating mode, and ensure that and cut
Bonding testing piece is along new-to-old concrete interface horizontal movement during cutting, while not eliminating in shear history bonding testing piece in itself not
Homogeneous deformation, makes its overall stress, while the dovetail type rolling guide block in vertical loading system can be effectively in cancellation element
Portion's frictional force, and then the validity of guarantee test result.Horizontal displacement acquisition system has degree of precision, and can be in shearing
During synchronism detection bonding testing piece displacement data.Therefore, the present apparatus has stronger specific aim, compensate for existing method of testing
In deficiency, can science, assess the adhesive property of track plates and self-compacting concrete packed layer exactly, be CRTSIII board-like
The operation maintenance of track structure provides scientific and effective theory support.
The sensitiveness of test device：
Practice have shown that, the present apparatus is high to the test evaluation sensitiveness of imitation specimen.By changing perfusion self-compacting concrete
Workability parameter, so as to change the bond state at interface.And the imitation specimen after the effect of varying environment factor.Compare different
Under the conditions of imitation specimen adhesive property.Shown using present apparatus test result, as imitation specimen is by self-compaction coagulation
It is right well that the influence of native workability parameter change and the influence of environmental factor effect, horizontal thrust and test specimen slide displacement are present
It should be related to, further demonstrate the validity of present apparatus method of testing.
Advantage of the present utility model and good effect：
1. the present apparatus can accurately test the adhesive property of precast track plate and self-compacting concrete packed layer, so that really
Protect the military service performance of CRTSIII slab track well-formeds.
2. the present apparatus can be used for the adhesive property of high-speed railway plate type ballastless track layer structure or similar laminated element
Laboratory or apparatus potential assessment, can really and accurately assess the military service performance of this kind of special construction.
3. the present apparatus can simulate actual condition stress and reliability is high, imitation specimen convenient formation, live foot is solved
The difficult problem of dimension model interlayer adhesion test.
In summary, the utility model be one kind can truly, test evaluation track plates and self-compacting concrete exactly
The adhesive property of packed layer, it is ensured that the military service performance of CRTSIII slab track well-formeds, simulates real working condition and dependable performance
Test about Bond Strength device.
Brief description of the drawings
Fig. 1 is high-speed railway plate type ballastless track structural shape schematic diagram；
Fig. 2 is the utility model structural representation；
Wherein：1- cylinder racks；2- cross cylinders；3- horizontal pressure force sensors；4- master cylinders；5- guide rods；6- screw threads
Bar；7- nuts；8- top plates；9- vertical pressure sensors；10- top boards；11- rolling guide blocks；12- shear plates；121- side plates；
13- displacement acquisition systems；14- shear boxs；15- bottom plates；16- precast track plates；17- self-compacting concrete packed layers；18- is mixed
Solidifying soil supporting layer；19- pressure ends.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Referring to Fig. 2, the plate-type ballastless track adhesive property test devices of CRTS III provided by the utility model, including transverse direction
Loading system, mainframe, shear box 14, vertical loading system and displacement acquisition system 13, the shear box 14 be used for place by
The double-layered test specimen that self-compacting concrete packed layer is constituted with track plates；The horizontal loading system is in the shear box 14
Side is horizontally arranged on the mainframe, it is possible to apply horizontal loading to test specimen track plates with certain loading velocity；It is described
The surface that vertical loading system is in the shear box 14 is vertically installed on the top plate 8 of the mainframe, for test specimen
Apply constant vertical load；The displacement acquisition system 13 is acquired to test specimen slide displacement data；Mainframe by bottom plate 15,
Threaded rod 6, top plate 8 and nut 7 are constituted；Bottom plate 15 is area 500mm × 800mm, and thickness is 10mm steel plate, and threaded rod 6 is
A diameter of 35mm solid screw thread rod iron；Bottom plate 15 is connected by threaded rod 6 and nut with top plate 8 and is integral；Shear box 14
For four sides and the rectangle box body of a bottom surface composition, being fixedly mounted on the bottom plate 15 for opening upwards is tested and used
Double-layered test specimen be placed in shear box 14；Shear plate 12 is L-type platy structure, is being arranged on the shear box 14 just
Top, and openend is down；Displacement acquisition system 13 is raster pattern displacement measuring device, and precision is 0.003mm, and collection test specimen is slided
Dynamic displacement data；The horizontal loading system by cross cylinder 2, cylinder rack 1, horizontal pressure force sensor 3, pressure end 19 and
Hydraulic servo control system is constituted, and the cylinder rack 1 is fixedly mounted on the mainframe bottom plate 15 in the side of shear box 14
On, the cross cylinder 2 is arranged in the cylinder rack 1 and be connected with hydraulic servo control system that there is provided stable and accurate water
Straight snips shear force；The piston rod external part of cross cylinder 2 is coaxially connected by horizontal pressure force sensor 3 and one end of pressure end 19,
Another side plate 121 rectified to shear plate of pressure end 19, the inner side clear height of side plate 121 1-2mm highly lower than track plates.It is described
Vertical loading system is made up of master cylinder 4, vertical pressure sensor 9 and top board 10；The top board 10 is arranged on described cut
The surface of cutting plate, upper end is connected by vertical pressure sensor 9 with the piston rod of the master cylinder 4,6 dovetails of sole arrangement
Formula rolling guide block 11, for offsetting the frictional force that top board is brought；The master cylinder 4 is vertically installed at the mainframe
On top plate 8；The both sides of the top board 10 are installed with guide rod 5, the top plate 8 to be set with the position corresponding position of guide rod 5
There is pilot hole, the guide rod 5 is slidably socketed in the pilot hole.
The test process of the present apparatus is as follows：
(1) tested double-layered test specimen is put into shear box, track flaggy upward, adjusts shear box so that side wall
Contacted against with test specimen side wall.
(2) shear plate is placed in test specimen upper surface, and causes shear box is in shear plate openend and test specimen interface same
One horizontal plane, and cause pressure end and shear plate side plane contact against.
(3) constant load is applied using vertical loading system.
(4) horizontal loading system is used to apply shearing force to test specimen track flaggy with certain loading velocity, while passing through water
Concora crush force snesor and raster pattern displacement measuring device are recorded to the horizontal thrust of application and test specimen displacement.
Claims (7)
1. a kind of plate-type ballastless track adhesive property test devices of CRTS III, including horizontal loading system, mainframe, shear box
(14), vertical loading system and displacement acquisition system (13), it is characterised in that：
The shear box (14) is used to place the double-layered test specimen being made up of self-compacting concrete packed layer and track plates, opening
Upward is arranged on the mainframe bottom plate (15)；
The horizontal loading system is horizontally arranged on the mainframe in the shear box (14) side, it is possible to certain
Loading velocity applies horizontal loading to test specimen track plates；
The vertical loading system is in the top plate (8) that the mainframe is vertically installed at directly over the shear box (14)
On, for applying constant vertical load to test specimen；
The displacement acquisition system (13) is acquired to test specimen slide displacement data.
2. the plate-type ballastless track adhesive property test devices of CRTS III according to claim 1, it is characterised in that：The horizontal stroke
To loading system by cross cylinder (2), cylinder rack (1), horizontal pressure force sensor (3), pressure end (19) and hydraulic servo control
System composition processed, the cylinder rack (1) is fixedly mounted on the mainframe bottom plate (15) in shear box (14) side, described
Cross cylinder (2) is arranged in the cylinder rack (1) and is connected with hydraulic servo control system；The piston rod of cross cylinder (2)
External part is coaxially connected by horizontal pressure force sensor (3) and one end of pressure end (19), another proper pair of pressure end (19)
The side wall of test specimen track plates.
3. the plate-type ballastless track adhesive property test devices of CRTS III according to claim 2, it is characterised in that：It is described perpendicular
It is made up of to loading system master cylinder (4), vertical pressure sensor (9) and top board (10)；The top board (10) is arranged on
The surface of the shear box (14), upper end is connected by vertical pressure sensor (9) with the piston rod of the master cylinder (4)；
The master cylinder (4) is vertically installed on the top plate of the mainframe (8).
4. the plate-type ballastless track adhesive property test devices of CRTS III according to claim 1 or 2, it is characterised in that：Institute
It is the raster pattern displacement measuring device on the mainframe that rheme, which moves acquisition system (13),.
5. the plate-type ballastless track adhesive property test devices of CRTS III according to claim 3, it is characterised in that：On described
Pressing plate (10) bottom is provided with some dovetail type rolling guide blocks (11).
6. the plate-type ballastless track adhesive property test devices of CRTS III according to claim 5, it is characterised in that：On described
The both sides of pressing plate (10) are installed with guide rod (5), the top plate (8) with guide rod (5) position corresponding position provided with guiding
Hole, the guide rod (5) is slidably socketed in the pilot hole.
7. the plate-type ballastless track adhesive property test devices of CRTS III according to claim 6, it is characterised in that：Described
The shear plate (12) of downward opening L-shaped structure is provided between shear box (14) and the top board (10)；The shear plate
(12) side plate (121) is corresponding with the pressure end position, and clear height 1-2mm highly lower than track plates on the inside of side plate (121).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621252658.2U CN206515161U (en) | 2016-11-21 | 2016-11-21 | A kind of plate-type ballastless track adhesive property test devices of CRTS III |
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| CN201621252658.2U CN206515161U (en) | 2016-11-21 | 2016-11-21 | A kind of plate-type ballastless track adhesive property test devices of CRTS III |
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| CN108020265A (en) * | 2017-12-11 | 2018-05-11 | 淮南师范学院 | A kind of pressure test equipment with temperature measurement function |
| CN109030049A (en) * | 2018-07-16 | 2018-12-18 | 北京交通大学 | A kind of ballastless track of high-speed railway complex environment simulation experiment system |
| CN109297787A (en) * | 2018-12-11 | 2019-02-01 | 中南大学 | The composite member of test new-old concrete interface shearing slip property prepares mold |
| CN109580401A (en) * | 2018-11-27 | 2019-04-05 | 中南大学 | Test the test method of platy ballastless track structure cement-based material performance development |
| CN110567871A (en) * | 2019-07-23 | 2019-12-13 | 西南交通大学 | Friction experiment device, bearing mechanism, loading mechanism and friction experiment method thereof |
| CN111175225A (en) * | 2020-01-16 | 2020-05-19 | 中铁二院工程集团有限责任公司 | Ballastless track interlayer crack propagation test device and test method |
| CN114593989A (en) * | 2022-05-10 | 2022-06-07 | 西南交通大学 | Ballastless track cohesion parameter assembly type measuring device and measuring method thereof |
| CN116086979A (en) * | 2023-03-07 | 2023-05-09 | 西南交通大学 | Sliding plate type fault multi-angle stick-slip simulation device and test method |
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- 2016-11-21 CN CN201621252658.2U patent/CN206515161U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020265A (en) * | 2017-12-11 | 2018-05-11 | 淮南师范学院 | A kind of pressure test equipment with temperature measurement function |
| CN109030049A (en) * | 2018-07-16 | 2018-12-18 | 北京交通大学 | A kind of ballastless track of high-speed railway complex environment simulation experiment system |
| CN109580401A (en) * | 2018-11-27 | 2019-04-05 | 中南大学 | Test the test method of platy ballastless track structure cement-based material performance development |
| CN109297787A (en) * | 2018-12-11 | 2019-02-01 | 中南大学 | The composite member of test new-old concrete interface shearing slip property prepares mold |
| CN109297787B (en) * | 2018-12-11 | 2020-12-11 | 中南大学 | Combined test piece preparation mold for testing shearing and sliding performance of new and old concrete interfaces |
| CN110567871A (en) * | 2019-07-23 | 2019-12-13 | 西南交通大学 | Friction experiment device, bearing mechanism, loading mechanism and friction experiment method thereof |
| CN111175225A (en) * | 2020-01-16 | 2020-05-19 | 中铁二院工程集团有限责任公司 | Ballastless track interlayer crack propagation test device and test method |
| CN114593989A (en) * | 2022-05-10 | 2022-06-07 | 西南交通大学 | Ballastless track cohesion parameter assembly type measuring device and measuring method thereof |
| CN114593989B (en) * | 2022-05-10 | 2022-07-29 | 西南交通大学 | Ballastless track cohesion parameter assembly type measuring device and measuring method thereof |
| CN116086979A (en) * | 2023-03-07 | 2023-05-09 | 西南交通大学 | Sliding plate type fault multi-angle stick-slip simulation device and test method |
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