CN211815208U - High-damping vibration isolation and noise isolation type floating slab track - Google Patents

High-damping vibration isolation and noise isolation type floating slab track Download PDF

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Publication number
CN211815208U
CN211815208U CN202020106266.5U CN202020106266U CN211815208U CN 211815208 U CN211815208 U CN 211815208U CN 202020106266 U CN202020106266 U CN 202020106266U CN 211815208 U CN211815208 U CN 211815208U
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vibration
noise
spring
buffer layer
floating plate
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CN202020106266.5U
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朱辉
施卫星
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SHENZHEN SANSHRILL TECHNOLOGY CO LTD
Tongji University
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SHENZHEN SANSHRILL TECHNOLOGY CO LTD
Tongji University
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Abstract

The utility model relates to a high damping vibration isolation separates noise type floating slab track belongs to track traffic vibration control technical field, has solved the environmental vibration and the noise pollution scheduling problem that urban rail transit produced. The utility model discloses a track traffic unit and compound vibration isolation sound insulation unit, compound vibration isolation sound insulation unit includes: the track traffic unit is integrally cast and fixed by a track and a floating plate through concrete, and a composite vibration isolation and insulation unit is arranged between the floating plate and a foundation; the vibration isolation and sound insulation device comprises a cylinder wall, a blocking sound insulation material for isolating vibration and noise, a spring and damping liquid, wherein the spring is arranged in the damping liquid and is simultaneously connected with a foundation and a floating plate to perform primary vibration attenuation, the elastic buffer layer is higher than the cylinder wall, and secondary vibration attenuation is realized through the elastic buffer layer. The utility model discloses can reduce the vibration and the noise pollution of the peripheral building that track traffic arouses and environment, improve building structure's security and travelling comfort.

Description

High-damping vibration isolation and noise isolation type floating slab track
Technical Field
The utility model relates to a track traffic vibration control technical field especially relates to a high damping vibration isolation separates noise type floating plate track.
Background
In order to relieve urban ground traffic pressure and improve land utilization rate, urban rail traffic, especially subway rail traffic, is built at an unprecedented speed in each big city in China. Although the urban rail transit has the advantages of land saving, traffic convenience, property conservation and the like, the urban rail transit may cause the problems of structural safety and vibration comfort. Environmental vibrations generated by urban rail transit can have adverse effects on the living comfort of nearby residents, the safety of neighboring ancient buildings, and the normal use of precision equipment and instruments.
For the problem of environmental vibration caused by urban rail transit, the current main solution is to add a floating slab for the rail and reduce the vibration response by adopting a vibration isolation method. The vibration isolation technology is to prolong the natural vibration period of the upper structure so as to reduce the vibration response of the upper structure. Most of the prior engineering adopts passive vibration isolation technology, namely, a vibration isolation support is added at a vibration isolation target. The vibration isolation support has the main defects that the vibration isolation support cannot meet the characteristic of subway vibration isolation broadband, the vibration isolation effect of the floating plate vibration isolation system is reduced, and when the frequency of vibration isolation is too low, the displacement of the floating plate is large, and the safety problem of rail transit driving can be caused.
When the rail transit is running, besides the above-mentioned environmental vibration problem, there is also an important problem of noise pollution. Direct noise caused by rail transit running and secondary noise caused by vibration can cause noise pollution to surrounding residents. However, the floating plate currently used in vibration reduction and isolation for rail transit cannot solve the problem of noise pollution.
SUMMERY OF THE UTILITY MODEL
In view of the above analysis, the present invention aims to provide a high damping vibration isolation and noise isolation type floating slab track for solving the problem that the existing urban rail transit may cause structural safety and vibration comfort. The environmental vibration that urban rail transit produced can influence the resident comfort level of nearby resident, to the security of neighbouring ancient building and to the problem that the normal use of precision equipment instrument produced harmful effects, can furthest reduce the vibration that weakens the track, block the noise propagation simultaneously.
The purpose of the utility model is mainly realized through the following technical scheme:
a high-damping vibration-isolation and noise-isolation type floating slab track comprises a track traffic unit and a composite vibration-isolation and sound-isolation unit; the composite vibration isolation and sound insulation unit is arranged between the rail transit unit and the foundation and is used for supporting the rail transit unit and isolating vibration and noise generated by the rail transit unit;
the compound vibration isolation sound insulation unit includes: the vibration isolation and sound insulation device comprises a vibration isolation and sound insulation device and an elastic buffer layer, wherein the elastic buffer layer is arranged on the outer side of the vibration isolation and sound insulation device.
Specifically, the rail transit unit includes: tracks, concrete and floating slabs; the track and the floating plate are fixed into a whole through concrete pouring.
Specifically, the vibration and sound isolation device comprises: the wall of the cylinder, sound insulation material, spring and damping fluid; the sound insulation material is a high polymer material capable of blocking the sound bridge, is arranged in the cylinder wall and is positioned at the periphery of the spring; the spring is arranged in the damping fluid.
Specifically, the top of the spring is fixedly connected with the bottom of the floating plate, and the bottom of the spring is fixedly connected with the foundation.
Specifically, the spring and the floating plate are fixed by welding.
Or the bottom of the floating plate is provided with a clamping groove which is an annular groove, the top of the spring is arranged in the clamping groove, and the spring and the floating plate are clamped and fixed.
Specifically, the elastic buffer layer is made of rubber or other polymer damping materials with buffer damping functions.
Specifically, the height of the elastic buffer layer is higher than that of the cylinder wall, and the height of the elastic buffer layer is lower than that of the spring.
Specifically, the elastic buffer layer is laid on the foundation, and the vibration isolation and sound insulation device is nested in the elastic buffer layer.
Or the elastic buffer layer is sleeved outside the vibration isolation and sound insulation device, and the diameter of the elastic buffer layer is twice of that of the cylinder wall.
The utility model discloses one of following beneficial effect has at least:
1) buffer vibration isolation, weaken noise transmission.
The utility model discloses high damping vibration isolation separates noise type floating slab track adopts damping vibration isolation sound arrester as the support component, and inside spring, sound insulation material and the damping liquid of setting up of damping vibration isolation sound arrester's urceolus wall. The utility model discloses a macromolecular material that can block the acoustic bridge is as sound insulation material, blocks the propagation of the noise that track traffic produced, adopts the spring-supported between floating plate and ground, and during damping liquid was arranged in to the spring, damping liquid and spring can effectively cushion and weaken the vibration that track traffic travel in-process produced, reduce the vibration response, avoid influencing peripheral resident's comfort level of living.
2) The vibration isolation and sound insulation device is adopted to perform primary vibration reduction, and the elastic buffer layer is adopted to perform secondary vibration reduction.
The utility model discloses fixed elastic buffer layer on the ground, elastic buffer layer's height that highly is less than the spring, and be higher than the height of section of thick bamboo wall, when the board takes place the vibration of small amplitude that floats, cushion and damping fluid through the spring, when the board takes place to vibrate by a wide margin when floating, the decrement of spring is greater than the difference in height of spring and elastic buffer layer, the board that floats contacts with elastic buffer layer, and make the elastic buffer layer compression, spring and elastic buffer layer all have the effect of buffering vibration isolation this moment, elastic buffer layer can undertake partial buffering vibration isolation function. The utility model discloses a set up the not co-altitude of spring and elastic buffer layer, to the separation effect of the vibration of the different degree of floating plate.
3) Protecting the cylinder wall and the floating plate.
The utility model discloses set up the elastic buffer layer between ground and the board that floats, the thickness of elastic buffer layer is higher than the height of the section of thick bamboo wall of vibration isolation sound arrester, can avoid the too big rigid impact of producing with section of thick bamboo wall contact of vibration amplitude of the board that floats in the track traffic transportation. The utility model discloses an elastic buffer layer can avoid the contact of floating plate and section of thick bamboo wall, has played the effect of protection section of thick bamboo wall and floating plate.
4) The stability is good.
The utility model discloses set up elastic buffer layer, when the track traffic unit vibration range is great, the contact of floating plate and whole elastic buffer layer increases the buffering face, and the buffering power that can avoid the vibration to produce concentrates on spring department, and disperses at whole elastic buffer layer, keeps the stationarity of buffering the vibration isolation, has good damping effect, and can avoid the rigid shock between floating plate and the section of thick bamboo wall.
The utility model discloses in, can also make up each other between the above-mentioned each technical scheme to realize more preferred combination scheme. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout the drawings.
Fig. 1 is one of the installation structure diagrams of the high damping vibration isolation and noise isolation type floating slab track of the present invention;
fig. 2 is a second installation structure diagram of the high damping vibration isolation and noise isolation type floating slab track of the present invention;
FIG. 3 is a view of the floating plate structure;
FIG. 4 is a structural diagram of a composite vibration isolation and sound insulation unit;
fig. 5 is a schematic structural diagram of the vibration isolation and sound insulation device.
Reference numerals:
1-foundation; 2-a track; 3-concrete; 4-floating plate; 41-rail engagements; 42-a first support portion; 43-a second support; 5-the wall of the cylinder; 6-sound insulation material; 7-a spring; 8-damping fluid; 9-elastic buffer layer.
Detailed Description
The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of the invention, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit the scope of the invention.
The utility model discloses a concrete embodiment discloses a high damping vibration isolation separates floating slab track of noise type, including track traffic unit and compound vibration isolation sound insulation unit, compound vibration isolation sound insulation unit sets up between track traffic unit and ground, has played the effect that supports track traffic unit and vibration isolation sound insulation.
Specifically, as shown in fig. 1, the rail transit unit includes: track 2, concrete 3 and floating slab 4, the upper portion of floating slab 4 is provided with groove structure, and track 2 is arranged in floating slab 4's top, and pours as an organic whole through concrete 3 between track 2 and the floating slab 4.
Specifically, a composite vibration isolation and sound insulation unit is arranged between the floating plate 4 and the foundation 1. The composite vibration isolation and sound insulation unit is used for supporting the floating plate 4, so that the vibration response generated in the transportation process can be reduced, the structural stability of the rail transportation unit is ensured, meanwhile, the noise generated in the rail transportation process is prevented from being transmitted, and the noise pollution is reduced.
Specifically, as shown in fig. 1 and 2, the composite vibration isolation and sound insulation unit includes: vibration isolation and sound insulation device and elastic buffer layer 9.
The vibration isolation and sound insulation device plays a role in supporting the floating plate 4, slowing down the vibration of the rail transit unit and blocking noise, and prevents noise pollution.
Specifically, as shown in fig. 4 and 5, the vibration and sound isolation device includes: the device comprises a cylinder wall 5, a sound insulation material 6, a spring 7 and damping liquid 8. The vibration isolation and sound insulation device is of a multilayer cylindrical structure and comprises a cylindrical wall 5, a sound insulation material 6 and damping liquid 8 from outside to inside in sequence, and a spring 7 is arranged in the damping liquid 8.
Specifically, the cylinder wall 5 is made of metal and serves as a shell of the vibration isolation and sound insulation device to fix an internal structure, and an installation space is provided for the spring 7, the damping liquid 8 and the sound insulation material 6.
Specifically, the sound insulation material 6 is a high polymer material capable of blocking an acoustic bridge, the sound insulation material 6 can be made of organic fibers, inorganic foam or foamed plastic and other materials which are not beneficial to sound wave penetration, the sound insulation material 6 can block sound transmission, noise transmission generated by rail transit operation is avoided, and noise pollution is reduced.
Specifically, the sound insulation material 6 is arranged on the inner side of the cylinder wall 5 and is positioned on the periphery of the spring 7 and the damping liquid 8, that is, the sound insulation material 6 is arranged on the circumferential outer side of the spring 7, and the sound insulation material 6 is arranged below the bottom of the spring 7 and surrounds the spring 7 and the damping liquid 8. Finally, the sound insulation material 6 completely isolates the spring 7 from the foundation, and the transmission of sound is blocked.
Specifically, one end of the spring 7 is connected with the bottom of the floating plate 4, the other end of the spring 7 is fixed at the bottom of the vibration isolation and sound insulation device, the spring 7 is used for supporting the floating plate 4, and meanwhile, when the floating plate 4 vibrates, the spring 7 has the effect of buffering the vibration.
Specifically, the spring 7 is placed in the damping liquid 8, when the floating plate 4 vibrates, the spring 7 is in a state of repeated compression and extension, and the damping liquid 8 can increase the damping received in the deformation process of the spring 7, reduce the vibration response, enable the floating plate 4 and the spring 7 to recover a stable state in a shorter time, and shorten the vibration period.
Specifically, as shown in fig. 4, the bottom of the elastic buffer layer 9 is fixed to the foundation 1, the height of the elastic buffer layer 9 is greater than the height of the cylinder wall 5 and less than the height of the spring 7, and the top surface of the elastic buffer layer 9 is higher than the top surface of the cylinder wall 5 and lower than the extending end of the spring 7. Elastic buffer layer 9 passes through rag bolt fixed as an organic whole with ground 1, also can adopt other fixed modes.
In order to save resources. The elastic buffer layer 9 may not be laid over the entire surface, but may be disposed outside the cylindrical wall 5, the elastic buffer layer 9 may be a hollow cylinder or a ring-shaped section, the diameter of the elastic buffer layer 9 is greater than 2 times the diameter of the cylindrical wall 5, and the height of the elastic buffer layer 9 is higher than the cylindrical wall 5 and lower than the spring 7. The elastic buffer layer 9 is made of rubber or other materials with certain elasticity and bearing capacity.
That is, as shown in fig. 4, the upper surface of the elastic buffer layer 9 is located between the protruding end of the spring 7 and the upper surface of the cylindrical wall 5. When vibration occurs in the process of orbital motion, the floating plate 4 moves downwards, the spring 7 is compressed to perform primary vibration reduction until the lower surface of the floating plate 4 is contacted with the elastic buffer layer 9; and then the elastic buffer layer 9 is compressed to carry out secondary vibration reduction, at the moment, the spring 7 is also synchronously compressed, and in the secondary vibration reduction process, the spring 7 and the elastic buffer layer 9 both have the effects of buffering and vibration isolation.
It is noted that when the vibration intensity is low, only the spring 7 and the damping fluid 8 participate in damping, and when the vibration amplitude is large, the elastic buffer layer 9 damps. Therefore, the elastic buffer 9 comes into contact with the floating plate 4 only when the amplitude of the vibration of the floating plate 4 exceeds the height difference between the elastic buffer 9 and the spring 7.
Considering that the generated vibration reciprocates during the rail transit operation, after the floating plate 4 compresses the spring 7, the damping fluid 8 can only absorb part of the vibration energy, and the floating plate still can rebound upwards under the action of the spring force and the vibration inertia. Therefore, the vibration damping means needs to be provided above the floating plate 4, and the cross section of the floating plate 4 is designed to be "convex" since the track 2 needs to be fixed above the floating plate 4.
That is to say, two supporting parts extend out to the both sides below floating plate 4, and the top and the below of supporting part all set up damping unit for the vibration of buffering rail transit unit reduces the vibration response, keeps floating plate 4 and regulation 2's stability, further guarantees the smooth driving of top vehicle of traveling.
Specifically, as shown in fig. 3, the floating plate 4 is in a shape of a Chinese character 'tu', the floating plate 4 includes a rail coupling portion 41 at an upper portion, and a first supporting portion 42 and a second supporting portion 43 at left and right sides, the rail coupling portion 41 is integrally cast with the rail 2 through the concrete 3, and the composite vibration isolation and sound insulation units are disposed at upper and lower sides of the first supporting portion 42 and the second supporting portion 43.
Considering that when the vibration isolation and sound insulation device is arranged above the floating plate 4, that is, when the vibration isolation and sound insulation device on the upper side and the lower side of the supporting portion is symmetrically installed, as shown in fig. 1, the damping liquid 8 needs to be sealed, the supporting rod can be fixedly connected to the spring 7 in a welding manner to be in contact with the floating plate, the spring 7 and the damping liquid 8 are both sealed in the cylinder wall 5, and the supporting rod extends out of the cylinder wall 5 to be in contact with the floating plate 4. Or, the inner part of the cylinder wall 5 of the sound insulation and sound insulation device above the floating plate 4 is only filled with the sound insulation material 6 without the damping liquid 8. Alternatively, the vibration isolation unit is mounted on the floating plate 4, that is, the cylinder wall 5 of the vibration isolation and sound insulation device above the floating plate 4 is mounted on the supporting portion of the floating plate 4, and the extending end of the spring 7 is connected or contacted with the upper foundation 1, that is, the directions of the vibration isolation and sound insulation devices on the upper side and the lower side of the supporting portion are the same, as shown in fig. 2.
The utility model discloses a 4 floating plate are "protruding" font, the track linking portion 41 in the middle of the floating plate 4 upwards protrudes, and be provided with the track mounting groove on the track linking portion 41, fix track 2 in the track mounting groove of floating plate 4 through concrete placement's form, floating plate 4 extends the supporting part to both sides, the upper and lower both sides of supporting part all set up spring 7 as damping element, spring 7 of floating plate below sets up in the damping fluid, mainly play the effect of supporting floating plate and buffering vibration isolation, kick-back when floating plate 4 vibration can be stopped to spring 7 of floating plate 4 supporting part top, play the effect of two-way buffering vibration isolation.
The utility model discloses a high damping vibration isolation separates orbital vibration isolation mode of noise type floating slab and does:
first, the floating deck track is installed.
Arranging a vibration isolation and sound insulation device and an elastic buffer layer 9 on a foundation 1, installing a floating plate 4 above a spring 7 of the vibration isolation and sound insulation device, and installing the vibration isolation and sound insulation device and the elastic buffer layer 9 above supporting parts at two ends of the floating plate 4;
the upper end and the lower end of the composite vibration isolation and sound insulation unit arranged above the supporting parts at the two sides of the floating plate 4 are respectively connected with the foundation 1 and the floating plate 4, for convenient installation, the floating plate 4 is firstly installed, then the extending parts of the foundation 1 above the first supporting part and the second supporting part are installed, furthermore, the extending parts of the foundation 1 above the supporting parts are of a steel plate structure or formed by pouring concrete, and the extending parts are fixed with the main body of the foundation 1 into a whole. Further, a vibration and sound isolation means above the floating plate 4 is provided between the extension of the foundation 1 and the support of the floating plate 4. In order to facilitate the installation of the floating slab track and the replacement of the vibration isolation and sound insulation device, the extension part of the foundation 1 is arranged to be of a detachable structure, for example, the extension part of the foundation 1 is of a steel structure, and the extension part and the body of the foundation 1 are fixed through embedded foundation bolts.
When the floating plate 4 vibrates, the floating plate floats up and down around the initial installation position of the floating plate 4.
During vibration, 4 downshifts that float, compress the vibration isolation sound-proof device of below earlier, cushion the vibration isolation through below vibration isolation sound-proof device, then, when 4 rebound of float return, 4 that float still have the speed of upwards kick-backing, the inertia energy that 4 that float promptly float has upwards kick-backing, 4 upstrokes that float, when being higher than initial position, stretch below vibration isolation sound-proof device, compress the vibration isolation sound-proof device of supporting part top simultaneously, reach the effect of two-way vibration isolation.
The vibration isolation method for bidirectional vibration isolation of the embodiment not only avoids excessive 'rebound' of the floating plate 4, but also can bidirectionally buffer the vibration energy of the floating plate 4, reduce the vibration response, enable the floating plate 4 and the track 2 to recover stably in a shorter time, and keep the position stability of the track 2.
Specifically, in the step 2, when the composite vibration isolation and sound insulation unit is adopted to buffer and isolate vibration of the floating plate 4, the floating plate 4 firstly compresses the spring 7, and the spring 7 and the damping liquid 8 perform primary vibration attenuation on the floating plate 4; after the lower surface of floating plate 4 contacted with elastic buffer layer 9, floating plate 4 compressed elastic buffer layer 9, and elastic buffer layer 9 carried out the second grade damping to floating plate 4, and spring 7 also can further compress this moment, and in the second grade damping process, spring 7 and elastic buffer layer 9 all had the effect of buffering the vibration isolation. The floating plate 4 is subjected to vibration isolation buffering by adopting the vibration isolation and sound insulation device and the elastic buffer layer, so that the floating plate 4 is prevented from generating large-amplitude vibration, and the stability of the track 2 is ensured. Meanwhile, the elastic buffer layer 9 can avoid rigid contact between the floating plate 4 and the cylinder wall 5, and protect the structures of the floating plate 4 and the cylinder wall 5 from being damaged.
Compared with the prior art, the technical scheme provided by the embodiment has at least one of the following technical effects:
the utility model discloses high damping vibration isolation separates noise type floating slab track adopts damping vibration isolation sound arrester as the support component, and 5 inside springs 7, sound-proof material 6 and the damping liquid 8 of setting up of outside section of thick bamboo wall of damping vibration isolation sound arrester, can block the propagation of the noise that track traffic produced, and damping liquid 8 and spring 7 can effectively cushion and weaken the vibration that track traffic travel in-process produced, reduce the vibration response, avoid influencing peripheral resident's comfort level of living.
The utility model discloses set up elastic buffer layer 9 in the outside of section of thick bamboo wall 5, elastic buffer layer 9 highly is less than spring 7's height, and be higher than section of thick bamboo wall 5's height, when floating board 4 takes place the small amplitude vibration, mainly cushion and the damping through spring 7 and damping fluid 8, when floating board 4 takes place to vibrate by a wide margin, spring 7's compressive strain is greater than the difference in height between spring 7 and the elastic buffer layer 9, floating board 4 and elastic buffer layer 9 contact, and make elastic buffer layer 9 compression, spring and elastic buffer layer 9 all have the effect of buffering vibration isolation this moment, elastic buffer layer 9 can undertake partial buffering vibration isolation function. The utility model discloses a set up the not co-altitude of spring and elastic buffer layer 9, to the vibration isolation intensity that sets up different grades of the vibration of the different degree of floating plate, realize the separation effect to the vibration of floating plate 4.
The utility model discloses a 4 floating plates are "protruding" font, the middle orbit linking part 41 of 4 floating plates upwards protrudes, and be provided with the track mounting groove on the track linking part 41, fix track 2 in the track mounting groove of 4 floating plates through concrete placement's form, 4 floating plates extend the supporting part to both sides, the upper and lower both sides of supporting part all set up spring 7 as damping component, the vibration isolation sound arrester of 4 below floating plates sets up in the damping fluid, mainly play the effect of supporting 4 floating plates and buffering vibration isolation, the vibration isolation sound arrester of 4 supporting parts tops floating plates, resilience when can stopping 4 floating plates vibration, play the effect of two-way buffering vibration isolation.
The utility model discloses set up elastic buffer layer 9 between ground 1 and floating slab 4, elastic buffer layer 9's thickness is higher than the height of the section of thick bamboo wall 5 of vibration isolation sound arrester, and in the track traffic transportation process, the vibration amplitude of avoiding floating slab 4 is too big and section of thick bamboo wall 5 contacts production rigid shock, has played the effect of protection section of thick bamboo wall and floating slab. When the vibration amplitude of the rail transit unit is large, the floating plate 4 is in contact with the elastic buffer layer 9, the buffer surface is enlarged, the buffer force generated by vibration can be prevented from being concentrated at the spring 7 and dispersed on the elastic buffer layer 9, the stability of buffer vibration isolation is kept, and the rail transit unit has a good vibration reduction effect.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims (10)

1. A high-damping vibration-isolation noise-isolation type floating slab track is characterized by comprising a track traffic unit and a composite vibration-isolation and sound-isolation unit; the composite vibration isolation and sound insulation unit is arranged between the rail transit unit and the foundation (1) and is used for supporting the rail transit unit and isolating vibration and noise generated by the rail transit unit;
the compound vibration isolation sound insulation unit comprises: the vibration and sound insulation device comprises a vibration and sound insulation device and an elastic buffer layer (9), wherein the elastic buffer layer (9) is arranged on the outer side of the vibration and sound insulation device.
2. The high damping, vibration isolating, and noise insulating floating slab track of claim 1, wherein the track traffic unit comprises: the track (2), the concrete (3) and the floating slab (4); the track (2) and the floating slab (4) are poured and fixed into a whole through concrete (3).
3. The high damping, vibration isolation and noise insulation type floating slab track according to claim 2, wherein said vibration isolation and noise insulation means comprises: the wall of the cylinder (5), sound insulation material (6), spring (7) and damping liquid (8); the sound insulation material (6) is a high polymer material capable of blocking an acoustic bridge, and the sound insulation material (6) is arranged inside the cylinder wall (5) and is positioned on the periphery of the spring (7); the spring (7) is arranged in the damping fluid (8).
4. The high-damping vibration-isolating and noise-isolating type floating plate track according to claim 3, wherein the top of the spring (7) is fixedly connected with the bottom of the floating plate (4), and the bottom of the spring (7) is fixedly connected with the foundation (1).
5. The high damping, vibration isolating and noise isolating type floating plate track according to claim 4, wherein the spring (7) and the floating plate (4) are fixed by welding.
6. The high-damping vibration-isolating and noise-isolating type floating plate rail as claimed in claim 4, wherein a clamping groove is formed in the bottom of the floating plate (4), the clamping groove is an annular groove, the top of the spring (7) is arranged in the clamping groove, and the spring (7) is clamped and fixed with the floating plate (4).
7. The high-damping vibration-isolating noise-insulating type floating slab track according to claim 5 or 6, wherein the elastic buffer layer (9) is made of a polymer material having a buffering and vibration-absorbing function.
8. The high-damping vibration-isolating and noise-insulating type floating plate track according to claim 7, wherein the height of the elastic buffer layer (9) is higher than that of the cylinder wall (5), and the height of the elastic buffer layer (9) is lower than that of the spring (7).
9. The high damping, vibration isolating and noise insulating floating slab track according to claim 8, characterized in that the elastic buffer layer (9) is laid on the foundation (1), and the vibration isolating and noise insulating device is nested in the elastic buffer layer (9).
10. The high-damping vibration-isolation and noise-insulation type floating slab track according to claim 8 or 9, wherein the elastic buffer layer (9) is sleeved outside the vibration-isolation and noise-insulation device, and the diameter of the elastic buffer layer (9) is twice that of the cylinder wall (5).
CN202020106266.5U 2020-01-17 2020-01-17 High-damping vibration isolation and noise isolation type floating slab track Active CN211815208U (en)

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CN202020106266.5U CN211815208U (en) 2020-01-17 2020-01-17 High-damping vibration isolation and noise isolation type floating slab track

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Application Number Priority Date Filing Date Title
CN202020106266.5U CN211815208U (en) 2020-01-17 2020-01-17 High-damping vibration isolation and noise isolation type floating slab track

Publications (1)

Publication Number Publication Date
CN211815208U true CN211815208U (en) 2020-10-30

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