CN116876265A - Vibration reduction track structure used in railway traffic - Google Patents
Vibration reduction track structure used in railway traffic Download PDFInfo
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- CN116876265A CN116876265A CN202311080956.2A CN202311080956A CN116876265A CN 116876265 A CN116876265 A CN 116876265A CN 202311080956 A CN202311080956 A CN 202311080956A CN 116876265 A CN116876265 A CN 116876265A
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- reinforced concrete
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- spring
- ballast bed
- sleeper
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- 230000009467 reduction Effects 0.000 title claims abstract description 51
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 239000011150 reinforced concrete Substances 0.000 claims description 85
- 241001669679 Eleotris Species 0.000 claims description 61
- 239000002131 composite material Substances 0.000 claims description 34
- 238000013016 damping Methods 0.000 claims description 33
- 150000001875 compounds Chemical class 0.000 claims description 32
- 238000003825 pressing Methods 0.000 claims description 29
- 239000004567 concrete Substances 0.000 claims description 23
- 239000011384 asphalt concrete Substances 0.000 claims description 16
- 230000007547 defect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 10
- 239000000203 mixture Substances 0.000 description 9
- 230000001413 cellular effect Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 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
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
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- 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
- E01B19/003—Means for reducing the development or propagation of noise
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Railway Tracks (AREA)
Abstract
The application relates to a vibration reduction track structure used in railway traffic, which relates to the field of vibration of the environment of the track traffic, and aims to solve the defects of a vibration reduction device or a vibration reduction system in the existing track system. The application is used as a vibration reduction track structure in railway traffic, and achieves the aim of vibration reduction of the steel rail.
Description
Technical Field
The application relates to the field of environmental vibration of rail transit, in particular to a vibration reduction rail structure used in railway transit.
Background
Along with the continuous improvement of the economic level, the demand of the railway aspect is also rapid, the urban scale is continuously enlarged, the railway is inevitably constructed to pass through a building area, and the vibration generated during the running of the railway track traffic is very intense, so that the research on how to damp the railway track and the reduction of the interference of the railway track to the surrounding building environment is of great significance. In the process of running at a high speed, the interaction between the wheels and the rails can be caused, so that vibration and noise are generated, and the vibration and the noise not only affect the comfort of train passengers, but also have adverse effects on surrounding residents and the environment. Therefore, reducing vibration and noise in railway traffic is an important technical challenge.
The traditional track system directly consists of steel rails, fasteners, sleepers, ballast beds and embankments, which obviously cannot meet the strict requirements of railway traffic vibration. Several vibration damping devices and systems for use in rail systems have been designed in the engineering field for reducing vibrations and noise in railway traffic. However, existing vibration damping devices and systems still suffer from problems, such as complexity and high cost of certain devices, and difficulty in installation and maintenance; still other devices have limitations in damping effects that do not fully address vibration and noise issues.
Disclosure of Invention
The application aims to overcome the defects of a vibration damper or a vibration damper system in the existing track system, and further provides a vibration damper track structure used in railway traffic;
a vibration reduction track structure used in railway traffic, the track structure comprises a steel rail 1 and a concrete base 8, the steel rail 1 is arranged above the concrete base 8, a vibration reduction assembly is arranged between the steel rail 1 and the concrete base 8, the steel rail 1 is arranged on the concrete base 8 through the vibration reduction assembly, the vibration reduction assembly comprises a track fastener system, a composite sleeper unit, a reinforced concrete ballast 4, a slab rubber ballast 5, an inner honeycomb ballast 6 and a spring vibration reduction ballast 7, the spring vibration reduction ballast 7 is arranged at the top of the concrete base 8, the bottom of the spring vibration reduction ballast 7 is fixedly connected with the top of the concrete base 8, the inner honeycomb ballast 6 is arranged at the top of the spring vibration reduction ballast 7, the bottom of the inner honeycomb ballast 6 is fixedly connected with the top of the spring vibration reduction ballast 7, the slab rubber ballast 5 is arranged at the top of the inner honeycomb ballast 6, the bottom of the slab rubber ballast 5 is fixedly connected with the top of the inner honeycomb ballast 6, the reinforced concrete ballast 4 is arranged at the top of the slab rubber ballast 5, and the bottom of the slab rubber ballast 4 is fixedly connected with the composite sleeper unit 3 and the reinforced concrete ballast 4 is arranged on the steel rail 1 and the composite sleeper unit 3 through the composite sleeper unit and the reinforced concrete ballast 4;
further, the composite sleeper unit comprises a plurality of composite sleepers 3, the composite sleepers 3 are sequentially and equidistantly arranged along the extending direction of the length of the steel rail 1, the track fastener system comprises a plurality of track fastener units, each track fastener unit is correspondingly arranged above one composite sleeper 3, and each composite sleeper 3 is installed on the reinforced concrete track bed 4 through one corresponding track fastener unit;
further, the track fastener unit comprises two track fasteners 2, the two track fasteners 2 are oppositely arranged at two sides of the steel rail 1 along the central line of the width direction of the steel rail 1, the track fasteners 2 comprise nuts 21, track buckle plates 22 and screw rods 23, one ends of the track buckle plates 22 close to the steel rail 1 are pressed on the bottom edge of one side of the steel rail 1, the bottoms of the track buckle plates 22 are pressed on the top of the composite sleeper 3, the bottom ends of the screw rods 23 sequentially penetrate through the track buckle plates 22 and the composite sleeper 3 and are inserted into the reinforced concrete ballast bed 4, the bottom ends of the screw rods 23 are in threaded connection with the reinforced concrete ballast bed 4, the nuts 21 are arranged above the track buckle plates 22, the nuts 21 are sleeved on the screw rods 23, the nuts 21 are in threaded connection with the screw rods 23, and the track buckle plates 22 are screwed on the reinforced concrete ballast bed 4 through the nuts 21;
further, the rail buckle 22 comprises a rail clamp plate and a sleeper clamp plate, the rail clamp plate is arranged above the sleeper clamp plate, the rail clamp plate and the sleeper clamp plate are arranged in a staggered manner, and the bottom of one end of the rail clamp plate, which is close to the sleeper clamp plate, and the top of one end of the sleeper clamp plate, which is close to the rail clamp plate, are integrally formed;
further, the lower surface of the steel rail pressing plate is matched with the upper surface of the middle bottom edge of the steel rail 1, and the lower surface of the sleeper pressing plate is matched with the upper surface of the composite sleeper 3;
further, the composite sleeper 3 comprises a reinforced concrete top layer 31, a rubber layer 32, an asphalt concrete layer 33 and a reinforced concrete bottom layer 34, wherein the reinforced concrete top layer 31, the rubber layer 32, the asphalt concrete layer 33 and the reinforced concrete bottom layer 34 are sequentially stacked from top to bottom, the top of the reinforced concrete top layer 31 is in contact with the lower surface of the sleeper pressing plate, the bottom of the reinforced concrete top layer 31 is fixedly bonded with the top of the rubber layer 32, the bottom of the rubber layer 32 is fixedly bonded with the top of the asphalt concrete layer 33, the bottom of the asphalt concrete layer 33 is fixedly bonded with the top of the reinforced concrete bottom layer 34, and the bottom of the reinforced concrete bottom layer 34 is fixedly bonded with the top of the reinforced concrete track bed 4;
further, the inner honeycomb ballast 6 comprises a ballast shell and a plurality of hexagonal cylinders, the hexagonal cylinders are filled in the ballast shell, and adjacent hexagonal cylinders are bonded and fixed:
further, the spring vibration reduction ballast bed 7 comprises a compound spring shell damper unit 71, an outer spring damper unit and two reinforced concrete plates 73, wherein the two reinforced concrete plates 73 are oppositely arranged in parallel up and down, the compound spring shell damper unit 71 is arranged at the center between the two reinforced concrete plates 73, the length extension direction of the compound spring shell damper unit 71 is the same as the length extension direction of the steel rail 1, the top of the compound spring shell damper unit 71 is fixedly connected with the bottom of the reinforced concrete plate 73 positioned above, the bottom of the compound spring shell damper unit 71 is fixedly connected with the top of the reinforced concrete plate 73 positioned below, the outer spring damper unit comprises two outer spring damper groups, the two outer spring damper groups are symmetrically arranged at two sides of the compound spring shell damper 71 along the central line of the width direction of the steel rail 1, each outer spring damper group comprises a plurality of outer spring dampers 72, the outer spring dampers 72 are sequentially arranged at equal intervals along the length extension direction of the steel rail 1, the top of each outer spring damper 72 is fixedly connected with the bottom of the reinforced concrete plate 73 positioned above, and the bottom of each outer spring damper 72 is fixedly connected with the top of the reinforced concrete plate 73 positioned below;
further, the compound spring housing damper unit 71 includes a rubber housing damper 712 and a plurality of built-in spring dampers 711, the rubber housing damper 712 is disposed at a center between the two reinforced concrete slabs 73, a length extending direction of the rubber housing damper 712 is the same as a length extending direction of the rail 1, the plurality of built-in spring dampers 711 are sequentially disposed in the rubber housing damper 712 at equal intervals along the length extending direction of the rubber housing damper 712, and a top of each built-in spring damper 711 is fixedly connected with an inner top of the rubber housing damper 712, and a bottom of each built-in spring damper 711 is fixedly connected with an inner bottom of the rubber housing damper 712;
further, the structure of the outer spring damper 72 is the same as that of the in-built spring damper 711.
Compared with the prior art, the application has the following beneficial effects:
compared with the vibration damping device in the existing track system, the vibration damping track structure has enough bearing capacity, obvious vibration damping effect, convenient construction, safety and reliability; the device can be widely applied to railway track traffic construction, vibration and noise generated during train operation can be effectively reduced, and the comfort and environmental friendliness of railway traffic are improved;
the vibration reduction track structure provided by the application achieves an ideal vibration reduction effect through a multi-level vibration isolation means, wherein a rubber layer and an asphalt concrete layer are arranged in a compound sleeper, the rubber layer and the asphalt concrete layer can serve as a first vibration reduction layer to achieve a certain vibration reduction effect, a reinforced concrete top layer and a reinforced concrete bottom layer which are arranged outside the first vibration reduction layer provide rigidity requirements required by the sleeper, a plate-type rubber track bed serves as a second vibration reduction layer to achieve an auxiliary vibration reduction effect, an inner honeycomb track bed serves as a third vibration reduction layer, the inner honeycomb track bed consists of a plurality of hexagonal cylinders, the vibration reduction effect can be achieved by utilizing the characteristics of a honeycomb structure, a spring vibration reduction track bed serves as a fourth vibration reduction layer, the vibration reduction effect of further vibration reduction is achieved through a compound spring shell damper and an external spring damper, and the vibration amplitude of the track can be attenuated layer by layer through structural optimization of the four vibration reduction layers, so that the ideal vibration reduction effect is achieved.
Drawings
FIG. 1 is a structural architecture of a vibration reducing track structure according to the present application;
FIG. 2 is a schematic view of a compound spring housing damper in a vibration reduction track structure according to the present application;
FIG. 3 is a schematic view of the securement of rails to compound sleepers in a vibration-damped track structure according to the present application;
FIG. 4 is a schematic view of an inner honeycomb structure of the vibration reduction track structure according to the present application;
in the figure, a steel rail 1, a rail fastener 2, a nut 21, a rail buckle plate 22, a screw rod 23, a compound sleeper 3, a reinforced concrete top layer 31, a rubber layer 32, an asphalt concrete layer 33, a reinforced concrete bottom layer 34, a reinforced concrete ballast bed 4, a plate rubber ballast bed 5, a honeycomb ballast bed 6, a spring vibration reduction ballast bed 7, a compound spring shell damper unit 71, an internal spring damper 711, a rubber shell damper 712, an external spring damper 72, a reinforced concrete slab 73 and a concrete base 8.
Detailed Description
The first embodiment is as follows: the present embodiment is described in connection with fig. 1 to 4, in which a vibration damping track structure used in railway traffic is provided, the track structure includes a rail 1 and a concrete base 8, the rail 1 is disposed above the concrete base 8, a vibration damping assembly is disposed between the rail 1 and the concrete base 8, the rail 1 is mounted on the concrete base 8 through the vibration damping assembly, the vibration damping assembly includes a track fastener system, a composite sleeper unit, a reinforced concrete ballast 4, a slab rubber ballast 5, an inner cellular ballast 6 and a spring vibration damping ballast 7, the spring vibration damping ballast 7 is disposed at the top of the concrete base 8, the bottom of the spring vibration damping ballast 7 is fixedly connected with the top of the concrete base 8, the inner cellular ballast 6 is disposed at the top of the spring vibration damping ballast 7, the bottom of the inner cellular ballast 6 is fixedly connected with the top of the spring vibration damping ballast 7, the slab rubber ballast 5 is disposed at the top of the inner cellular ballast 6, the bottom of the slab rubber ballast 5 is fixedly connected with the top of the inner cellular ballast 6, the slab rubber ballast 4 is disposed at the top of the reinforced concrete ballast 4, and the slab rubber ballast 4 is fixedly connected with the reinforced concrete ballast 3 by the reinforced concrete sleeper unit 4, and the reinforced concrete ballast 4 is fixedly connected with the reinforced concrete ballast 4 by the composite sleeper unit 1 and the reinforced concrete ballast 4.
In the embodiment, the concrete base 8 is positioned at the lowest part, and can be formed by casting high-strength concrete in situ during construction, so that the whole system is provided with enough bearing capacity, the inner honeycomb ballast bed 6 and the spring vibration reduction ballast bed 7 are prefabricated in factories, the inner honeycomb ballast bed 6 and the spring vibration reduction ballast bed 7 can be directly installed and fixed on site conveniently, the installation process is simplified, and the heights of the reinforced concrete ballast bed 4, the plate-type rubber ballast bed 5, the inner honeycomb ballast bed 6 and the spring vibration reduction ballast bed 7 can be determined according to practical conditions so as to ensure the laying stability of the steel rail 1.
The second embodiment is as follows: the present embodiment is different from the specific embodiment in that the composite sleeper unit includes a plurality of composite sleepers 3, the composite sleepers 3 are sequentially equidistantly arranged along the extending direction of the length of the rail 1, the rail fastening system includes a plurality of rail fastening units, each rail fastening unit is correspondingly arranged above one composite sleeper 3, and each composite sleeper 3 is installed on the reinforced concrete track bed 4 through a corresponding rail fastening unit. Other compositions and connection modes are the same as in the first embodiment.
And a third specific embodiment: the second difference between the present embodiment and the specific embodiment is that the present embodiment is described with reference to fig. 1 to 4, the track fastener unit includes two track fasteners 2, the two track fasteners 2 are disposed on two sides of the rail 1 along the center line of the width direction of the rail 1, the track fasteners 2 include a nut 21, a track fastener 22 and a screw 23, one end of the track fastener 22 near the rail 1 is pressed on the bottom edge of one side of the rail 1, the bottom of the track fastener 22 is pressed on the top of the composite sleeper 3, the bottom of the screw 23 sequentially passes through the track fastener 22 and the composite sleeper 3 and is inserted in the reinforced concrete ballast 4, the bottom of the screw 23 is in threaded connection with the reinforced concrete ballast 4, the nut 21 is disposed above the track fastener 22, the nut 21 is sleeved on the screw 23, the nut 21 is in threaded connection with the screw 23, and the track fastener 22 is screwed on the reinforced concrete ballast 4 by the nut 21. Other compositions and connection modes are the same as those of the second embodiment.
In this embodiment, the pressing action of the rail buckle 22 is realized by matching the nut 21 and the screw 23, and when the nut 21 is screwed down, the pre-tightening force applied by the rail buckle 22 is realized, and the greater the screwing degree of the nut 21 is, the greater the pre-tightening force applied by the rail buckle 22 is.
The specific embodiment IV is as follows: the third difference between the present embodiment and the specific embodiment is that the track buckle 22 includes a rail pressing plate and a sleeper pressing plate, the rail pressing plate is disposed above the sleeper pressing plate, the rail pressing plate and the sleeper pressing plate are disposed in a dislocation manner, and the bottom of the rail pressing plate near one end of the sleeper pressing plate and the top of the sleeper pressing plate near one end of the rail pressing plate are integrally formed. Other compositions and connection modes are the same as those of the third embodiment.
Fifth embodiment: the fourth difference between the present embodiment and the specific embodiment is that the lower surface of the rail pressing plate is matched with the upper surface of the middle edge of the rail 1, and the lower surface of the sleeper pressing plate is matched with the upper surface of the composite sleeper 3, which will be described with reference to fig. 1 to 4. Other compositions and connection modes are the same as those of the fourth embodiment.
This is provided to facilitate stability of the rail clip 22 when compressed.
Specific embodiment six: the fifth difference between the present embodiment and the specific embodiment is that the composite sleeper 3 includes a reinforced concrete top layer 31, a rubber layer 32, an asphalt concrete layer 33 and a reinforced concrete bottom layer 34, the reinforced concrete top layer 31, the rubber layer 32, the asphalt concrete layer 33 and the reinforced concrete bottom layer 34 are sequentially stacked from top to bottom, the top of the reinforced concrete top layer 31 contacts with the lower surface of the sleeper platen, the bottom of the reinforced concrete top layer 31 is adhered and fixed to the top of the rubber layer 32, the bottom of the rubber layer 32 is adhered and fixed to the top of the asphalt concrete layer 33, the bottom of the asphalt concrete layer 33 is adhered and fixed to the top of the reinforced concrete bottom layer 34, and the bottom of the reinforced concrete bottom layer 34 is adhered and fixed to the top of the reinforced concrete track bed 4. Other compositions and connection modes are the same as those of the fifth embodiment.
In the present embodiment, the rubber layer 32 and the asphalt concrete layer 33 serve as the first vibration damping layer, and the vibration amplitude received on the rail 1 is absorbed for the first time, thereby achieving the primary vibration damping purpose.
Seventh embodiment: the sixth difference between the present embodiment and the specific embodiment is that the inner honeycomb-shaped ballast bed 6 includes a ballast bed shell and a plurality of hexagonal cylinder bodies, the plurality of hexagonal cylinder bodies are filled in the ballast bed shell, and the adjacent hexagonal cylinder bodies are bonded and fixed, which will be described with reference to fig. 1 to 4. Other compositions and connection modes are the same as those of the sixth embodiment.
In the present embodiment, the inner honeycomb track bed 6 uses the characteristics of the hexagonal cylinder and the honeycomb structure as the third vibration damping layer, and absorbs the vibration amplitude twice after the composite sleeper 3 and the plate-type rubber track bed, thereby achieving the purpose of three-level vibration damping.
Eighth embodiment: the seventh difference between the present embodiment and the specific embodiment is that the spring vibration absorbing track bed 7 includes a compound spring housing damper unit 71, an outer spring damper unit, and two reinforced concrete plates 73, the two reinforced concrete plates 73 are oppositely disposed in parallel up and down, the compound spring housing damper unit 71 is disposed at the center between the two reinforced concrete plates 73, the length extension direction of the compound spring housing damper unit 71 is the same as the length extension direction of the rail 1, the top of the compound spring housing damper unit 71 is fixedly connected with the bottom of the reinforced concrete plate 73 located above, the bottom of the compound spring housing damper unit 71 is fixedly connected with the top of the reinforced concrete plate 73 located below, the outer spring damper unit includes two outer spring damper groups, the two outer spring damper groups are symmetrically disposed at both sides of the compound spring housing damper unit 71 along the center line of the width direction of the rail 1, each outer spring damper group includes a plurality of outer spring dampers 72, the plurality of outer spring dampers 72 are sequentially disposed at equal intervals along the length extension direction of the rail 1, and the top of each outer spring damper unit 71 is fixedly connected with the bottom of the reinforced concrete plate 73 located below, and the bottom of each outer spring damper 72 is fixedly connected with the bottom of the reinforced concrete plate 73 located below. Other compositions and connection manners are the same as those of the seventh embodiment.
In this embodiment, the compound spring housing damper unit 71 and the outer spring damper unit form a fourth damping layer, which is also the last damping layer, the vibration amplitude is transmitted to the fourth damping layer after three damping, and the final damping is performed through the fourth damping layer, and the vibration amplitude can be effectively buffered and consumed in the process through the repeated compression and rebound actions of the spring structure in the outer spring damper unit and the compound spring housing damper unit 71, so as to achieve the final ideal damping purpose.
Detailed description nine: the eighth difference between this embodiment and the specific embodiment is that the compound spring-housing damper unit 71 includes a rubber-housing damper 712 and a plurality of built-in spring dampers 711, the rubber-housing damper 712 is disposed at the center between two reinforced concrete slabs 73, the length extension direction of the rubber-housing damper 712 is the same as the length extension direction of the rail 1, the plurality of built-in spring dampers 711 are sequentially disposed in the rubber-housing damper 712 at equal intervals along the length extension direction of the rubber-housing damper 712, and the top of each built-in spring damper 711 is fixedly connected with the inner top of the rubber-housing damper 712, and the bottom of each built-in spring damper 711 is fixedly connected with the inner bottom of the rubber-housing damper 712. Other compositions and connection modes are the same as those of the eighth embodiment.
In the present embodiment, the rubber housing damper 712 includes upper and lower closed rubber housings, and the built-in spring damper 711 is provided at a horizontal tangential point for supporting and connecting the upper and lower rubber housings 712.
Detailed description ten: the present embodiment is different from the ninth embodiment in that the outer spring damper 72 has the same structure as the inner spring damper 711, with reference to fig. 1 to 4. Other compositions and connection manners are the same as those of the embodiment nine.
The present application has been described in terms of preferred embodiments, but is not limited to the above-described embodiments, and any simple modification, equivalent changes and variation of the above-described embodiments according to the technical principles of the present application will be within the scope of the present application when the above-described structures and technical principles can be utilized to make a few equivalent embodiments without departing from the technical scope of the present application.
Principle of operation
When the vibration reduction track structure is constructed, firstly, a concrete base 8 is constructed, a spring vibration reduction track bed 7 is constructed on the concrete base 8, then an inner honeycomb track bed 6 is constructed at the top of the spring vibration reduction track bed 7, a plate-type rubber track bed 5 and a reinforced concrete track bed 4 are arranged at the top of the inner honeycomb track bed 6, a compound sleeper 3 and a track fastener system 2 are constructed above the inner honeycomb track bed 6, and then a steel rail 1 is arranged between the compound sleeper 3 and the track fastener system 2;
when a train passes through the steel rail 1, the generated vibration can be transmitted along the composite sleeper 3, the reinforced concrete ballast bed 4, the plate-type rubber ballast bed 5, the inner honeycomb ballast bed 6 and the spring vibration reduction ballast bed 7 in sequence and finally acts on the concrete base 8, wherein the composite sleeper 3, the plate-type rubber ballast bed 5, the inner honeycomb ballast bed 6 and the spring vibration reduction ballast bed 7 are respectively used as four-stage vibration reduction layers to absorb the vibration amplitude step by step, and the ideal vibration reduction effect is achieved through a multi-layer vibration isolation means.
Claims (10)
1. Vibration reduction track structure that uses in the railway traffic, track structure includes rail (1) and concrete base (8), and rail (1) set up in the top of concrete base (8), are equipped with vibration reduction assembly between rail (1) and concrete base (8), and rail (1) are installed on concrete base (8) through vibration reduction assembly, its characterized in that: the vibration damping assembly comprises a track fastener system, a composite sleeper unit, a reinforced concrete ballast bed (4), a plate-type rubber ballast bed (5), an inner honeycomb ballast bed (6) and a spring vibration damping ballast bed (7), wherein the spring vibration damping ballast bed (7) is arranged at the top of a concrete base (8), the bottom of the spring vibration damping ballast bed (7) is fixedly connected with the top of the concrete base (8), the inner honeycomb ballast bed (6) is arranged at the top of the spring vibration damping ballast bed (7), the bottom of the inner honeycomb ballast bed (6) is fixedly connected with the top of the spring vibration damping ballast bed (7), the plate-type rubber ballast bed (5) is arranged at the top of the inner honeycomb ballast bed (6), the bottom of the plate-type rubber ballast bed (5) is fixedly connected with the top of the inner honeycomb ballast bed (6), the reinforced concrete ballast bed (4) is arranged at the top of the plate-type rubber ballast bed (5), the composite unit (3) is arranged between the spring vibration damping ballast bed (4) and a steel rail (1) and a steel rail fastener (2) through the composite sleeper unit (1).
2. A vibration-damped track structure for use in railway traffic according to claim 1, wherein: the combined type sleeper unit includes a plurality of combined type sleeper (3), and the extending direction of rail (1) length is followed in proper order equidistance to a plurality of combined type sleeper (3) sets up, and track fastener system includes a plurality of track fastener units, and every track fastener unit corresponds the top that sets up in a combined type sleeper (3), and every combined type sleeper (3) are installed on reinforced concrete railway roadbed (4) through a track fastener unit that corresponds.
3. A vibration-damped track structure for use in railway traffic according to claim 2, wherein: the track fastener unit comprises two track fasteners (2), the two track fasteners (2) are oppositely arranged on two sides of a steel rail (1) along the center line of the width direction of the steel rail (1), the track fasteners (2) comprise nuts (21), track buckle plates (22) and screw rods (23), one ends of the track buckle plates (22) close to the steel rail (1) are pressed on the bottom edge of one side of the steel rail (1), the bottoms of the track buckle plates (22) are pressed on the top of the composite sleeper (3), the bottoms of the screw rods (23) sequentially penetrate through the track buckle plates (22) and the composite sleeper (3) and are inserted into the reinforced concrete ballast bed (4), the bottoms of the screw rods (23) are in threaded connection with the reinforced concrete ballast bed (4), the nuts (21) are arranged above the track buckle plates (22), the nuts (21) are sleeved on the screw rods (23), the nuts (21) are in threaded connection with the screw rods (23), and the track buckle plates (22) are screwed on the reinforced concrete ballast bed (4) through the nuts (21).
4. A vibration-damped track structure for use in railway traffic according to claim 3, wherein: the rail buckle plate (22) comprises a steel rail pressing plate and a sleeper pressing plate, the steel rail pressing plate is arranged above the sleeper pressing plate, the steel rail pressing plate and the sleeper pressing plate are arranged in a staggered mode, and the bottom of one end, close to the sleeper pressing plate, of the steel rail pressing plate and the top of one end, close to the steel rail pressing plate, of the sleeper pressing plate are integrally formed.
5. A vibration-damped track structure for use in railway traffic according to claim 4, wherein: the lower surface of the steel rail pressing plate is matched with the upper surface of the middle bottom edge of the steel rail (1), and the lower surface of the sleeper pressing plate is matched with the upper surface of the composite sleeper (3).
6. A vibration-damped track structure for use in railway traffic according to claim 1 or 5, wherein: the composite sleeper (3) comprises a reinforced concrete top layer (31), a rubber layer (32), an asphalt concrete layer (33) and a reinforced concrete bottom layer (34), wherein the reinforced concrete top layer (31), the rubber layer (32), the asphalt concrete layer (33) and the reinforced concrete bottom layer (34) are sequentially stacked from top to bottom, the top of the reinforced concrete top layer (31) is in contact with the lower surface of a sleeper pressing plate, the bottom of the reinforced concrete top layer (31) is fixedly bonded with the top of the rubber layer (32), the bottom of the rubber layer (32) is fixedly bonded with the top of the asphalt concrete layer (33), the bottom of the asphalt concrete layer (33) is fixedly bonded with the top of the reinforced concrete bottom layer (34), and the bottom of the reinforced concrete bottom layer (34) is fixedly bonded with the top of the reinforced concrete track bed (4).
7. A vibration-damped track structure for use in railway traffic according to claim 6, wherein: the inner honeycomb ballast bed (6) comprises a ballast bed shell and a plurality of hexagonal cylinder bodies, wherein the plurality of hexagonal cylinder bodies are filled in the ballast bed shell, and the adjacent hexagonal cylinder bodies are fixedly bonded.
8. A vibration-damped track structure for use in railway traffic according to claim 7, wherein: the spring vibration reduction ballast bed (7) comprises a compound spring shell damper unit (71), an outer spring damper unit and two reinforced concrete plates (73), wherein the two reinforced concrete plates (73) are oppositely arranged in parallel up and down, the compound spring shell damper unit (71) is arranged at the center between the two reinforced concrete plates (73), the length extension direction of the compound spring shell damper unit (71) is the same as the length extension direction of a steel rail (1), the top of the compound spring shell damper unit (71) is fixedly connected with the bottom of the reinforced concrete plate (73) positioned above, the bottom of the compound spring shell damper unit (71) is fixedly connected with the top of the reinforced concrete plate (73) positioned below, the outer spring damper unit comprises two outer spring damper groups, the two outer spring damper groups are symmetrically arranged at two sides of the compound spring shell damper (71) along the center line of the width direction of the steel rail (1), each outer spring damper group comprises a plurality of outer spring dampers (72), the plurality of outer spring dampers (72) are sequentially arranged along the length extension direction of the steel rail (1), the bottom of the compound spring shell damper unit (71) is fixedly connected with the top of the reinforced concrete plate (73) positioned below, and the top of each outer spring damper (72) is fixedly connected with the bottom of the reinforced concrete plate (73) positioned below.
9. A vibration-damped track structure for use in railway traffic according to claim 7, wherein: the compound spring shell damper unit (71) comprises rubber shell dampers (712) and a plurality of built-in spring dampers (711), wherein the rubber shell dampers (712) are arranged at the center between two reinforced concrete plates (73), the length extension direction of the rubber shell dampers (712) is identical to the length extension direction of the steel rail (1), the built-in spring dampers (711) are sequentially and equidistantly arranged in the rubber shell dampers (712) along the length extension direction of the rubber shell dampers (712), the top of each built-in spring damper (711) is fixedly connected with the inner top of the rubber shell damper (712), and the bottom of each built-in spring damper (711) is fixedly connected with the inner bottom of the rubber shell damper (712).
10. A vibration-damped track structure for use in railway traffic according to claim 7, wherein: the structure of the outer spring damper (72) is the same as that of the inner spring damper (711).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117344586A (en) * | 2023-11-16 | 2024-01-05 | 广东省建筑设计研究院有限公司 | Underground track vibration reduction method and structure system based on vibration reduction steel pipe pile |
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| CN112301806A (en) * | 2020-11-26 | 2021-02-02 | 福建江夏学院 | Vibration-damping sleeper and construction method thereof |
| CN113106788A (en) * | 2021-03-09 | 2021-07-13 | 厦门大学 | Floating track bed vibration reduction method and device based on multilayer composite damping |
| CN216514887U (en) * | 2021-12-10 | 2022-05-13 | 中建桥梁有限公司 | Honeycomb composite sleeper with vibration reduction function |
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| KR100639502B1 (en) * | 2006-03-13 | 2006-10-27 | 벽산엔지니어링주식회사 | Shock absorbing structure of a slab railroad track |
| CN112301806A (en) * | 2020-11-26 | 2021-02-02 | 福建江夏学院 | Vibration-damping sleeper and construction method thereof |
| CN113106788A (en) * | 2021-03-09 | 2021-07-13 | 厦门大学 | Floating track bed vibration reduction method and device based on multilayer composite damping |
| CN216514887U (en) * | 2021-12-10 | 2022-05-13 | 中建桥梁有限公司 | Honeycomb composite sleeper with vibration reduction function |
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| CN117344586A (en) * | 2023-11-16 | 2024-01-05 | 广东省建筑设计研究院有限公司 | Underground track vibration reduction method and structure system based on vibration reduction steel pipe pile |
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