CN106758557B - High-speed railway roadbed vibration isolation cushion layer - Google Patents
High-speed railway roadbed vibration isolation cushion layer Download PDFInfo
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- CN106758557B CN106758557B CN201611090783.2A CN201611090783A CN106758557B CN 106758557 B CN106758557 B CN 106758557B CN 201611090783 A CN201611090783 A CN 201611090783A CN 106758557 B CN106758557 B CN 106758557B
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- vibration isolation
- isolation area
- area
- vibration
- separate unit
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- 238000002955 isolation Methods 0.000 title claims abstract description 126
- 239000004567 concrete Substances 0.000 claims abstract description 28
- 239000010705 motor oil Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000000741 silica gel Substances 0.000 claims description 9
- 229910002027 silica gel Inorganic materials 0.000 claims description 9
- 239000010721 machine oil Substances 0.000 claims description 7
- 239000007769 metal material Substances 0.000 claims description 7
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 claims description 6
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 6
- 230000015271 coagulation Effects 0.000 claims description 3
- 238000005345 coagulation Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 12
- 230000006378 damage Effects 0.000 abstract description 4
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract 1
- 241000271559 Dromaiidae Species 0.000 description 3
- 230000006854 communication Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000012611 container material Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241001669679 Eleotris Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007688 edging Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a high-speed railway roadbed vibration isolation cushion layer, which belongs to the technical field of energy consumption and vibration reduction, and comprises a first vibration isolation area, a second vibration isolation area and a third vibration isolation area, wherein a unit cell independent unit body comprises an outermost thin-wall quality ring and a closed container which is arranged in the thin-wall quality ring and filled with engine oil, salient points are arranged on the outer side of the closed container, the first vibration isolation area consists of one layer of unit cell independent unit bodies which are arranged in parallel, the second vibration isolation area consists of two layers of unit cell independent unit bodies which are arranged in parallel, the third vibration isolation area consists of three layers of unit cell independent unit bodies which are arranged in parallel, and concrete main body structures are filled above the first vibration isolation area, between the first vibration isolation area and the second vibration isolation area, between the second vibration isolation area and the third vibration isolation area and below the third vibration isolation area. The vibration isolation cushion layer can reduce the damage of high-frequency vibration to the roadbed by utilizing an energy dissipation and vibration reduction mechanism with a good structure, and the device has the advantages of novel structure, good vibration isolation effect and the like.
Description
Technical field
The present invention relates to passive energy dissipation technical field, more particularly to a kind of high-speed railway subgrade vibration isolation bed course.
Background technology
Vibrated on high-speed railway caused by EMUs operation, especially dither causes rail fastening, no slag track plates
And aging, well damage occur for related equipment, the part replacement cycle reduces；High Speed Railway Subgrade also has accordingly
The destruction of degree, cause such as settlement of subgrade, track dynamic geometric form potential difference etc. to endanger, leverage high-speed railway
The speed of service of EMUs, the comfort level and safe for operation of driving a vehicle, the workload of maintenance also greatly increases, this dither
Harm problem seems especially prominent.
According to the concrete condition of China's vehicle, suitable railway roadbed and track structure form, appropriate spring secures rail to sleeper are worked out
And elastic insert, the track traffic cause for high speed development are particularly important, the present invention is with regard to high-speed railway subgrade cushion
Breakthrough Journal of Sex Research has been made in layer field, achieves the achievement in research of novelty, subtracting vibration isolation to high-speed railway can be very helpful.
The number of patent application that State Intellectual Property Office announced on December 2nd, 2015 is 201520359132.3, name
Claim：A kind of patent for being provided with the highway subgrade structure for subtracting vibration isolation bed course, this patent propose following technical scheme：Including roadbed, road
Dike, subtract vibration isolation bed course and edging layer.Although the highway subgrade structure can also play certain vibration isolating effect, height can not be tackled
Destroyed caused by frequency vibration.Dither is to road structure, the related equipment in surrounding building and the railway system
Caused destructiveness, in being far longer than, low-frequency vibration.
Traditional road structure and material is relatively single, and existing road structure can not tackle destructive larger high frequency vibrating
It is dynamic, and existing road structure is bad to the vibration isolating effect of dither.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of new in structure, service life is long and excludes dither
The high-speed railway subgrade vibration isolation bed course of significant effect, in the present invention by structure cell separate unit body it is arranged in parallel into three pieces of vibration isolation areas and
Interval and thickness between adjacent vibration isolation area is different, both can guarantee that traffic safety, and can substantially reduces dither, reaches
Double effectses.
In order to solve the above-mentioned technical problem, the invention provides a kind of high-speed railway subgrade vibration isolation bed course, the vibration isolator
Floor includes the first vibration isolation area, the second vibration isolation area and the 3rd vibration isolation area using structure cell separate unit body as elementary cell, the structure cell
Separate unit body is spherical in rule, and the structure cell separate unit body includes outermost thin-walled quality circles and is located at thin-walled quality
In circle and the internal closed container for being marked with machine oil, the materials of the thin-walled quality circles is vibration isolation metal material, the closed container
Outside is provided with salient point, and the first vibration isolation area is made up of the structure cell separate unit body of a floor arranged in parallel, the second vibration isolation area
Be made up of the structure cell separate unit body of two layers of arranged in parallel, the 3rd vibration isolation area by three floor arranged in parallel structure cell separate unit
Body forms, above the first vibration isolation area, between the first vibration isolation area and the second vibration isolation area, the second vibration isolation area and the 3rd vibration isolation area it
Between, be filled with concrete main body structure below the 3rd vibration isolation area.
Further, be separated by 18~22mm at the top of the first vibration isolation area and concrete main body structure, described second every
Shake area and the first vibration isolation area is separated by 28~32mm, and the 3rd vibration isolation area and the second vibration isolation area are separated by 38~42mm, and the described 3rd
Vibration isolation area and the bottom of concrete main body structure are separated by 38~42mm.
Further, the concrete main body structure uses placement layer by layer, and the cross section of concrete main body structure is in square
Shape is trapezoidal；The concrete main body structural material is lightweight concrete material.
Further, a diameter of 19.5~20.5mm of the structure cell separate unit body.
Further, the vibration isolation metal material is Nitinol；The closed container material is soft silica gel；It is described closed
Machine oil in container is synthetic motor oil.
Further, the salient point is in regular hexagonal prism structure, and is handled in the middle part of salient point by variable cross-section, the salient point
Middle cross-sectional area is less than upper/lower terminal cross-sectional area.
Compared with prior art, the beneficial effect that the present invention is reached：
(1) the first vibration isolation area is made up of the structure cell separate unit body of a floor arranged in parallel in the present invention, and the first vibration isolation area
With being separated by 18~22mm at the top of concrete main body structure, the second vibration isolation area by two layers of arranged in parallel structure cell separate unit
Body forms, and the second vibration isolation area is separated by 28~32mm, the structure cell of the floor arranged in parallel of the 3rd vibration isolation area three with the first vibration isolation area
Separate unit body forms, and the 3rd vibration isolation area is separated by 38~42mm, the diameter of the structure cell separate unit body with the second vibration isolation area
For 19.5~20.5mm, three independent floor vibration isolation areas are shared in the present invention, not only the new in structure in vibration isolation area, and can be with
Play the effect of successively vibration isolation；The thickness in three floor vibration isolation areas and interval are different simultaneously, can be very good to play vibration isolation material
Nonlinear characteristic, vibration isolating effect is more preferably.
(2) the structure cell separate unit body in the present invention is solid-liquid combination body, and structure cell separate unit body is as vibration isolation area
Elementary cell, structure cell separate unit are made up of three kinds of completely different materials of physical property, can be very good to reflect or suppress ripple
Propagation, it is especially especially prominent to the vibration isolating effect of dither.
(3) outside of closed container is provided with salient point in the present invention, the section of the contact position of closed container and thin-walled quality circles
Shape is undergone mutation, so that ripple runs into a discontinuous place in communication process, be can be very good to reflect or is suppressed one
The propagation of partial wave, so as to play certain vibration isolating effect；Closed container in the present invention be previously implanted into it is closed after synthetic motor oil, one
Bodyization makes；Synthetic motor oil has good viscosity, so synthetic motor oil has very strong absorbability to dither；Simultaneously
Fluent material has the characteristic of not shearing resistance, so can be very good to exclude dither using the viscosity effect of machine oil.
(4) thin-walled quality loop material is Nitinol in the present invention, inherently a kind of vibration isolation metal material of Nitinol,
With certain anti-vibration performance, while thin-walled quality circles wall thickness can also be changed to improve the density of structure cell separate unit body, made
The density of structure cell separate unit body is similar with lightweight concrete density, and coagulation is floated on so as to which structure cell separate unit body will not occur
Phenomenon on soil, so as to simplify the process during precast concrete vibration isolator laminate, need to add compared with prior art
Chemical reagent controls the method for filler to compare, simply, economical, time saving.
(5) closed container material is soft silica gel in the present invention, because soft silica gel has certain deformation characteristic, can be passed through
Deformation absorbs energy caused by part vibration；Soft silica gel closed container is wrapped up it by Nitinol thin-walled quality circles in the present invention
In, contact of the silica gel product with extraneous concrete is avoided, improves the service life of soft silica gel closed container, while reduces and sets
The standby replacement cycle.
(6) concrete main body structural material is lightweight concrete material in the present invention, and lightweight concrete has light weight, every
The advantages that performance of shaking is good, while the requirement of intensity can also be met；Structure type of the present invention is concise, can be according to different roadbed
Demand customizes corresponding size, can be prefabricated in advance, scene laying, and speed of application is fast.
(7) bump design in the present invention on the outside of closed container is regular hexagonal prism structure, wherein to making to become in the middle part of salient point
Section is handled, i.e. the cross-sectional area of the upper and lower ends of bump structure is greater than the cross-sectional area of middle, is so increased again
Discontinuously locate at one, allow the ripple to be hampered in communication process and reduce.
In summary, high speed railway vibration isolation cushion layer structure of the present invention has stability concurrently, and durability and good vibration isolation are special
Property, and to dither to exclude effect especially prominent；New in structure and vibration isolating effect in the present invention is good.
Brief description of the drawings
The present invention is described in further detail below in conjunction with the drawings and the specific embodiments.
Fig. 1 is the profile of roadbed vibration isolator Rotating fields in the present invention；
Fig. 2 is the profile of structure cell separate unit body in the present invention；
Fig. 3 is the structural representation of bumps of the present invention；
Fig. 4 is the skiagraph of Fig. 3 bumps；
Fig. 5 is the cross-sectional view of Fig. 3 bumps；
Description of reference numerals：1st, concrete main body structure, 2, structure cell separate unit body, the 3, first vibration isolation area, 4, second every
Shake area, the 5, the 3rd vibration isolation area, and 6, thin-walled quality circles, 7, closed container, 8, salient point.
Embodiment
Following examples are merely to illustrate the present invention, but are not limited to the scope of the present invention.
As shown in Figures 1 and 2, a kind of high-speed railway subgrade vibration isolation bed course, the vibration isolation bed course are included with structure cell separate single
First body 2 is the first vibration isolation area 3, the second vibration isolation area 4 and the 3rd vibration isolation area 5 of elementary cell, and the structure cell separate unit body 2 is in rule
Then spherical, the structure cell separate unit body 2 include outermost thin-walled quality circles 6 and are located in thin-walled quality circles 6 and internal
The closed container 7 of machine oil is marked with, the material of the thin-walled quality circles 6 is vibration isolation metal material, and the outside of closed container 7 is provided with
Salient point 8, the first vibration isolation area 3 are made up of the structure cell separate unit body 2 of a floor arranged in parallel, and the second vibration isolation area 4 is by two
Layer arranged in parallel structure cell separate unit body 2 form, the 3rd vibration isolation area 5 by three floor arranged in parallel structure cell separate unit body
2 compositions, between the top of the first vibration isolation area 3, the first vibration isolation area 3 and the second vibration isolation area 4, the second vibration isolation area 4 and the 3rd vibration isolation
Concrete main body structure 1 is filled between area 5, below the 3rd vibration isolation area 5.
In the present embodiment, the first vibration isolation area 3 and the top of concrete main body structure 1 are separated by 18~22mm, described
Second vibration isolation area 4 and the first vibration isolation area 3 are separated by 28~32mm, and the 3rd vibration isolation area 5 and the second vibration isolation area 4 be separated by 38~
42mm, the 3rd vibration isolation area 5 and the bottom of concrete main body structure 1 are separated by 38~42mm.
In the present embodiment, the concrete main body structure 1 uses placement layer by layer, and concrete main body structure 1 is transversal
Face rectangular and trapezoidal shapes；The material of concrete main body structure 1 is lightweight concrete material.
In the present embodiment, a diameter of 19.5~20.5mm of the structure cell separate unit body 2.
In the present embodiment, the vibration isolation metal material is Nitinol；The material of closed container 7 is soft silica gel；Institute
It is synthetic motor oil to state the machine oil in closed container 7.
In the present embodiment, the salient point 8 is in regular hexagonal prism structure, and the middle part of salient point 8 is handled by variable cross-section, institute
State the middle cross-sectional area of salient point 8 and be less than upper/lower terminal cross-sectional area.
As shown in figure 3, hexagonal prism structure of the salient point 8 in the outside of closed container 7 in rule, and the middle part of salient point 8 is made to become and cut
Face is handled so that the middle cross-sectional area of salient point 8 is less than upper/lower terminal cross-sectional area, so adds again at one not
Continuous place, allows ripple to be hampered in communication process and reduce.
As shown in Figures 4 and 5, the skiagraph of the salient point 8 is in " work " font, and the cross-sectional view of salient point 8 is hexagonal
Structure, such variable cross-section design can be such that the deformation characteristic of soft silica gel material preferably brings into play.
High-speed railway subgrade vibration isolation bed course in the present invention is as follows using process：In use, the vibration isolation bed course is laid on
Below the roadbed of high-speed railway, dither caused by EMUs operation can be propagated downwards in the form of ripple, first ripple pass through every
Shake the first vibration isolation area 3 of bed course, and the first vibration isolation area 3 can absorb a part of ripple, while can also suppress or reflect a part of ripple, so as to
Weaken the energy of ripple；Enter the second vibration isolation area 4, the vibration isolation of thickness ratio first in the second vibration isolation area 4 through the ripple behind the first vibration isolation area 3
The thickness in area 1 is thicker, and therefore, the second vibration isolation area 4 can weaken the energy of ripple to a greater extent, through after the second vibration isolation area 4
Ripple enters the 3rd vibration isolation area 5, and now the impulsive force of ripple greatly reduces, and the thickness in the second vibration isolation of thickness ratio area 4 in the 3rd vibration isolation area 5
Degree is thicker, and ripple thoroughly can absorb ripple after entering the 3rd vibration isolation area 5, so as to ensure the comfort level and traffic safety of driving,
So that the workload of railway maintenance maintenance substantially reduces.
In summary, the restricted embodiment that it is the present invention that above-mentioned embodiment, which is not, all those skilled in the art
The modification carried out on the basis of the substantive content of the present invention or equivalent deformation, the technology category in the present invention.
Claims (6)
- A kind of 1. high-speed railway subgrade vibration isolation bed course, it is characterised in that：The vibration isolation bed course is included with structure cell separate unit body (2) For the first vibration isolation area (3), the second vibration isolation area (4) and the 3rd vibration isolation area (5) of elementary cell, the structure cell separate unit body (2) In the spherical of rule, the structure cell separate unit body (2) includes outermost thin-walled quality circles (6) and is located at thin-walled quality circles (6) in and inside is marked with the closed container (7) of machine oil, and the material of the thin-walled quality circles (6) is vibration isolation metal material, described close Close on the outside of container (7) and be provided with salient point (8), the first vibration isolation area (3) by a floor arranged in parallel structure cell separate unit body (2) group Into, the second vibration isolation area (4) is made up of the structure cell separate unit body (2) of two layers of arranged in parallel, the 3rd vibration isolation area (5) by Structure cell separate unit body (2) composition of three layers of arranged in parallel, the first vibration isolation area (3) top, the first vibration isolation area (3) and second Coagulation is filled between vibration isolation area (4), between the second vibration isolation area (4) and the 3rd vibration isolation area (5), below the 3rd vibration isolation area (5) Native agent structure (1).
- A kind of 2. high-speed railway subgrade vibration isolation bed course according to claim 1, it is characterised in that：The first vibration isolation area (3) with being separated by 18~22mm at the top of concrete main body structure (1), the second vibration isolation area (4) is separated by with the first vibration isolation area (3) 28~32mm, the 3rd vibration isolation area (5) are separated by 38~42mm, the 3rd vibration isolation area (5) and coagulation with the second vibration isolation area (4) The bottom of native agent structure (1) is separated by 38~42mm.
- A kind of 3. high-speed railway subgrade vibration isolation bed course according to claim 1, it is characterised in that：The concrete main body knot Structure (1) uses placement layer by layer, and the cross section rectangular and trapezoidal shapes of concrete main body structure (1)；The concrete main body structure (1) material is lightweight concrete material.
- A kind of 4. high-speed railway subgrade vibration isolation bed course according to claim 1, it is characterised in that：The structure cell separate unit A diameter of 19.5~20.5mm of body (2).
- A kind of 5. high-speed railway subgrade vibration isolation bed course according to claim 1, it is characterised in that：The vibration isolation metal material For Nitinol；Closed container (7) material is soft silica gel；Machine oil in the closed container (7) is synthetic motor oil.
- A kind of 6. high-speed railway subgrade vibration isolation bed course according to claim 1, it is characterised in that：The salient point (8) is in rule Hexagonal prism structure then, and salient point (8) in the middle part of by variable cross-section handle, salient point (8) middle cross-sectional area be less than it is upper, Lower both ends cross-sectional area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611090783.2A CN106758557B (en) | 2016-11-30 | 2016-11-30 | High-speed railway roadbed vibration isolation cushion layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611090783.2A CN106758557B (en) | 2016-11-30 | 2016-11-30 | High-speed railway roadbed vibration isolation cushion layer |
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| Publication Number | Publication Date |
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| CN106758557A CN106758557A (en) | 2017-05-31 |
| CN106758557B true CN106758557B (en) | 2018-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611090783.2A Active CN106758557B (en) | 2016-11-30 | 2016-11-30 | High-speed railway roadbed vibration isolation cushion layer |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63233124A (en) * | 1987-03-20 | 1988-09-28 | Nippon Solid Co Ltd | Preventing work for vibration of ground |
| CN203160070U (en) * | 2013-03-21 | 2013-08-28 | 洛阳双瑞橡塑科技有限公司 | Low-stress nonlinear elastic anti-vibration pad |
| CN104562862A (en) * | 2015-01-20 | 2015-04-29 | 严宏生 | Novel high-speed railway |
| CN204825537U (en) * | 2015-05-29 | 2015-12-02 | 河北建筑工程学院 | Highway roadbed structure with subtract vibration isolation bed course |
| CN105951541A (en) * | 2016-06-16 | 2016-09-21 | 同济大学 | Vibration damping structure, vibration damping pad and using method thereof |
-
2016
- 2016-11-30 CN CN201611090783.2A patent/CN106758557B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63233124A (en) * | 1987-03-20 | 1988-09-28 | Nippon Solid Co Ltd | Preventing work for vibration of ground |
| CN203160070U (en) * | 2013-03-21 | 2013-08-28 | 洛阳双瑞橡塑科技有限公司 | Low-stress nonlinear elastic anti-vibration pad |
| CN104562862A (en) * | 2015-01-20 | 2015-04-29 | 严宏生 | Novel high-speed railway |
| CN204825537U (en) * | 2015-05-29 | 2015-12-02 | 河北建筑工程学院 | Highway roadbed structure with subtract vibration isolation bed course |
| CN105951541A (en) * | 2016-06-16 | 2016-09-21 | 同济大学 | Vibration damping structure, vibration damping pad and using method thereof |
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| CN106758557A (en) | 2017-05-31 |
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