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

Abstract

The utility model relates to a high-damping vibration-isolating and noise-isolating floating slab track, which belongs to the technical field of rail transit vibration control, and solves the problems of environmental vibration and noise pollution generated by urban rail transit. The utility model comprises a rail transit unit and a composite vibration and sound insulation unit. The composite vibration and sound insulation unit comprises: a vibration and sound insulation device and an elastic buffer layer. A composite vibration and sound insulation unit is arranged between the plate and the foundation; the vibration and sound insulation device includes a cylinder wall, a blocking sound insulation material for isolating vibration and noise, a spring and a damping fluid, and the spring is arranged in the damping fluid to connect the foundation and float at the same time. The plate performs first-level vibration reduction, the elastic buffer layer is higher than the cylinder wall, and the second-level vibration reduction is achieved through the elastic buffer layer. The utility model can reduce vibration and noise pollution of surrounding buildings and environments caused by rail traffic, and improve the safety and comfort of building structures.

Description

A kind of high damping vibration isolation and noise isolation type floating slab track

technical field

The utility model relates to the technical field of rail transit vibration control, in particular to a high-damping vibration-isolating and noise-isolating floating slab track.

Background technique

In order to ease the pressure of urban ground traffic and improve land utilization, major cities in my country are building urban rail transit at an unprecedented speed, especially subway rail transit. Although this has advantages such as land saving, convenient transportation and property preservation, urban rail transit may cause structural safety and vibration comfort problems. The environmental vibration generated by urban rail transit will adversely affect the living comfort of nearby residents, the safety of nearby ancient buildings, and the normal use of precision equipment.

For the environmental vibration problem caused by urban rail transit, the main solution at present is to add a floating plate to the rail, and use the vibration isolation method to reduce the vibration response. Vibration isolation technology reduces the vibration response of the superstructure by extending the natural vibration period of the superstructure. Most of the current projects are passive vibration isolation technology, that is, adding vibration isolation supports at the vibration isolation target. The main defect is that the vibration isolation bearing can not meet the characteristics of the subway vibration isolation broadband, resulting in a decrease in the vibration isolation effect of the floating plate vibration isolation system, and when the vibration isolation frequency is too low, the displacement of the floating plate will be relatively small. It may cause safety problems in rail transit.

In addition to the above-mentioned environmental vibration problems, another important problem is noise pollution when rail transit is running. The direct noise caused by rail transit and the secondary noise caused by vibration will bring noise pollution to the surrounding residents. However, the floating panels currently used in rail transit vibration reduction and isolation cannot solve the problem of noise pollution.

Utility model content

In view of the above analysis, the present invention aims to provide a high-damping, vibration-isolating and noise-isolating floating slab track to solve the problems of structural safety and vibration comfort that may be caused by existing urban rail transit. The environmental vibration generated by urban rail transit will affect the living comfort of nearby residents, the safety of nearby ancient buildings, and the problem of adverse effects on the normal use of precision equipment and instruments. It can minimize the vibration of the track and block the noise propagation.

The purpose of the present utility model is mainly achieved through the following technical solutions:

A high damping vibration isolation and noise isolation type floating slab track, comprising a rail transit unit and a composite vibration isolation and sound isolation unit; the composite vibration isolation and sound isolation unit is arranged between the rail transit unit and the foundation, and is used to support the rail transit unit while isolating Vibration and noise generated by rail transit units;

The composite vibration and sound insulation unit includes: a vibration and sound insulation device and an elastic buffer layer, and the elastic buffer layer is arranged outside the vibration and sound insulation device.

Specifically, the rail transit unit includes: rails, concrete and floating slabs; the rails and the floating slabs are fixed as a whole by concrete pouring.

Specifically, the vibration and sound insulation device includes: a cylinder wall, a sound insulation material, a spring and a damping liquid; the sound insulation material is a polymer material capable of blocking the sound bridge, and the sound insulation material is arranged inside the cylinder wall and is located on the periphery of the spring ;The spring is set in the damping fluid.

Specifically, the top of the spring is fixedly connected to the bottom of the floating plate, and the bottom of the spring is fixedly connected to the foundation.

Specifically, the spring and the floating plate are fixed by welding.

Alternatively, the bottom of the floating plate is provided with a card groove, the card groove is an annular groove, the top of the spring is placed in the card groove, and the spring is clamped and fixed with the floating plate.

Specifically, the elastic buffer layer is made of rubber material or other polymer vibration-damping materials with buffering and vibration-damping functions.

Specifically, the height of the elastic buffer layer is higher than the height of the cylinder wall, and the height of the elastic buffer layer is lower than the height of the spring.

Specifically, the elastic buffer layer is laid on the foundation, and the vibration and sound insulation device is nested in the elastic buffer layer.

Alternatively, the elastic buffer layer is sleeved on the outside of the vibration isolation and sound insulation device, and the diameter of the elastic buffer layer is twice the diameter of the cylinder wall.

The utility model has at least one of the following beneficial effects:

1) Buffer vibration isolation and reduce noise transmission.

The high-damping vibration-isolating and noise-isolating floating plate track of the utility model adopts a damping vibration-isolating and sound-isolating device as a supporting component, and a spring, a sound-insulating material and a damping liquid are arranged inside the outer cylinder wall of the damping-vibration-isolating and sound-insulating device. The utility model adopts the macromolecule material that can block the sound bridge as the sound insulation material to block the transmission of the noise generated by the rail traffic. The utility model adopts the spring to be supported between the floating plate and the foundation. The spring can effectively buffer and weaken the vibration generated in the process of rail transit, reduce the vibration response, and avoid affecting the living comfort of the surrounding residents.

2) Vibration and sound insulation devices are used for primary vibration reduction, and elastic buffer layers are used for secondary vibration reduction.

The utility model fixes an elastic buffer layer on the foundation. The height of the elastic buffer layer is lower than the height of the spring and higher than the height of the cylinder wall. When the floating plate vibrates with a small amplitude, the spring and the damping liquid are used for buffering and damping. , when the floating plate vibrates greatly, the compression of the spring is greater than the height difference between the spring and the elastic buffer layer, and the floating plate contacts the elastic buffer layer and compresses the elastic buffer layer. At this time, both the spring and the elastic buffer layer have For the effect of buffering and vibration isolation, the elastic buffer layer can undertake part of the function of buffering and vibration isolation. By setting different heights of the spring and the elastic buffer layer, the utility model has the effect of blocking the vibration of the floating plate in different degrees.

3) Protect the cylinder wall and floating plate.

In the utility model, an elastic buffer layer is arranged between the foundation and the floating plate, and the thickness of the elastic buffer layer is higher than the height of the cylinder wall of the vibration isolation and sound insulation device, which can avoid excessive vibration amplitude of the floating plate during rail transportation. The large contact with the cylinder wall produces a rigid impact. The elastic buffer layer of the utility model can avoid the contact between the floating plate and the cylinder wall, and has the effect of protecting the cylinder wall and the floating plate.

4) Good stability.

The utility model is provided with an elastic buffer layer. When the vibration amplitude of the rail transit unit is relatively large, the floating plate contacts the entire elastic buffer layer to increase the buffer surface, which can prevent the buffer force generated by the vibration from being concentrated at the spring, but dispersed throughout the whole The elastic buffer layer maintains the stability of the buffer and vibration isolation, has a good vibration damping effect, and can avoid the rigid impact between the floating plate and the cylinder wall.

In the present invention, the above technical solutions can also be combined with each other to achieve more preferred combination solutions. Additional features and advantages of the invention will be set forth in the description which follows, and some of the advantages may become apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the present invention may be realized and attained by the contents particularly pointed out in the description, claims and drawings.

Description of drawings

The drawings are for the purpose of illustrating specific embodiments only, and are not considered to be a limitation of the present invention, and the same reference numerals refer to the same parts throughout the drawings.

Fig. 1 is one of the installation structure diagrams of the high-damping vibration-isolating and noise-isolating floating plate track of the present invention;

Fig. 2 is the second installation structure diagram of the high-damping vibration-isolating and noise-isolating floating plate track of the present invention;

Figure 3 is a structural diagram of a floating plate;

Figure 4 is a structural diagram of a composite vibration and sound insulation unit;

Figure 5 is a schematic diagram of the structure of the vibration isolation and sound isolation device.

Reference number:

1-foundation; 2-track; 3-concrete; 4-floating board; 41-track joint; 42-first support; 43-second support; 5-tube wall; 6-sound insulation material; 7 -spring; 8-damping fluid; 9-elastic buffer layer.

Detailed ways

The preferred embodiments of the present utility model will be specifically described below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present utility model, and together with the embodiments of the present utility model, are used to explain the principles of the present utility model, but are not intended to limit the present utility model. range.

A specific embodiment of the present utility model discloses a high-damping vibration-isolating and noise-isolating floating slab track, which includes a rail transit unit and a composite vibration and sound isolation unit. The composite vibration and sound isolation unit is arranged on the rail transit unit and the foundation. Between them, it plays the role of supporting the rail transit unit and isolating vibration and sound.

Specifically, as shown in FIG. 1, the rail transit unit includes: a rail 2, a concrete 3 and a floating plate 4, the upper part of the floating plate 4 is provided with a groove structure, the rail 2 is placed above the floating plate 4, and the rail 2 and the floating plate 4 are cast as one through concrete 3 .

Specifically, a composite vibration and sound insulation unit is arranged between the floating plate 4 and the foundation 1 . The composite vibration and sound isolation unit is used to support the floating plate 4, which can reduce the vibration response generated in the transportation process, ensure the structural stability of the rail transit unit, and at the same time prevent the noise transmission generated during the rail transportation process and reduce noise pollution. .

Specifically, as shown in FIG. 1 and FIG. 2 , the composite vibration and sound insulation unit includes: a vibration and sound insulation device and an elastic buffer layer 9 .

The vibration and sound insulation device plays the role of supporting the floating plate 4, as well as slowing down the vibration of the rail transit unit and blocking noise, so as to prevent noise pollution.

Specifically, as shown in FIGS. 4 and 5 , the vibration and sound insulation device includes: a cylinder wall 5 , a sound insulation material 6 , a spring 7 and a damping liquid 8 . The vibration isolation and sound isolation device is a multi-layered cylindrical structure, from the outside to the inside, the cylinder wall 5 , the sound insulation material 6 and the damping liquid 8 are sequentially arranged, and the spring 7 is arranged in the damping liquid 8 .

Specifically, the cylinder wall 5 is made of metal material, and serves as the shell of the vibration and sound insulation device, which plays a role of fixing the internal structure and provides installation space for the spring 7, the damping liquid 8 and the sound insulation material 6.

Specifically, the sound insulation material 6 is a polymer material that can block the sound bridge. The sound insulation material 6 can be selected from organic fibers, inorganic fibers, inorganic foams or foamed plastics and other materials that are not conducive to the penetration of sound waves. The sound insulation material 6 can block Cut off the transmission of sound, avoid the transmission of noise generated by rail transit operation, and reduce noise pollution.

Specifically, the sound insulation material 6 is arranged on the inner side of the cylinder wall 5 and is located on the periphery of the spring 7 and the damping liquid 8 at the same time. There is a sound insulation material 6 below the , which surrounds the spring 7 and the damping liquid 8 . Finally, the sound insulation material 6 completely isolates the spring 7 from the foundation and blocks the transmission of sound.

Specifically, one end of the spring 7 is connected to the bottom of the floating plate 4, and the other end is fixed to the bottom of the vibration isolation and sound insulation device. The spring 7 is used to support the floating plate 4. At the same time, when the floating plate 4 vibrates, the spring 7 has a buffer Vibration effect.

Specifically, the spring 7 is placed in the damping fluid 8. When the floating plate 4 vibrates, the spring 7 is in a state of repeated compression and extension. The damping fluid 8 can increase the damping of the spring 7 during the deformation process, reduce the vibration response, and make the The floating plate 4 and the spring 7 can restore 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 upper surface of the top of the elastic buffer layer 9 is at a high position On the upper surface of the cylinder wall 5, and lower than the protruding end of the spring 7. The elastic buffer layer 9 is integrally fixed with the foundation 1 by means of anchor bolts, and other fixing methods can also be used.

In order to save resources. The elastic buffer layer 9 can also not be laid on the whole surface, but is arranged on the outside of the cylinder wall 5. The elastic buffer layer 9 is a hollow cylindrical shape or a circular cross-section, and the diameter of the elastic buffer layer 9 is greater than 2 times the cylinder wall 5. The height of the elastic buffer layer 9 is higher than the cylinder wall 5 and lower than the spring 7. The elastic buffer layer 9 is made of rubber material 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 cylinder wall 5 . When vibration occurs during the orbital operation, the floating plate 4 moves downward, first compressing the spring 7 for first-level vibration reduction, until the lower surface of the floating plate 4 contacts the elastic buffer layer 9; and then compressing the elastic buffer layer 9 for the second-level vibration reduction Vibration reduction, at this time, the spring 7 is also compressed synchronously. During the secondary vibration reduction process, both the spring 7 and the elastic buffer layer 9 have the effect of buffering and isolating vibration.

It is worth noting that when the vibration intensity is low, only the spring 7 and the damping liquid 8 participate in buffering and damping, and when the vibration amplitude is large, the elastic buffer layer 9 damps the vibration. Therefore, only when the vibration amplitude of the floating plate 4 exceeds the height difference between the elastic buffer layer 9 and the spring 7 , the elastic buffer member 9 will come into contact with the floating plate 4 .

Considering that during the operation of rail transit, the vibration generated is reciprocating. After the floating plate 4 compresses the spring 7, the damping fluid 8 can only reduce part of the vibration energy, and the floating plate will still move upward under the action of the spring elastic force and vibration inertia. "Rebound". Therefore, a vibration damping unit needs to be arranged above the floating plate 4 , and since the rail 2 needs to be fixed above the floating plate 4 , the cross section of the floating plate 4 is designed in a “convex” shape.

That is to say, two supporting parts extend from the two sides below the floating plate 4, and vibration damping units are provided above and below the supporting parts to buffer the vibration of the rail transit unit, reduce the vibration response, and maintain the floating plate 4 and the The stability of stipulation 2 further ensures the smooth running of the vehicle traveling above.

Specifically, as shown in FIG. 3 , the floating plate 4 is in a “convex” shape, and the floating plate 4 includes a rail connecting part 41 on the upper part and a first supporting part 42 and a second supporting part 43 on the left and right sides. The rail connecting part 41 is cast into one piece with the track 2 through the concrete 3 , and composite vibration and sound insulation units are provided on the upper and lower sides of the first support portion 42 and the second support portion 43 .

Considering that when the vibration and sound insulation device is arranged above the floating plate 4, that is to say, when the vibration and sound insulation devices on the upper and lower sides of the support part are installed symmetrically, as shown in FIG. 1, the damping fluid 8 needs to be sealed, The support rod can be fixedly connected to the floating plate by welding on the spring 7 . Both the spring 7 and the damping liquid 8 are sealed in the cylinder wall 5 , and the support rod extends out of the cylinder wall 5 to contact the floating plate 4 . Alternatively, the interior of the cylindrical wall 5 of the sound insulation and sound insulation device above the floating plate 4 is filled with only the sound insulation material 6 without the damping liquid 8 . Alternatively, the vibration isolation unit is installed on the floating plate 4, that is, the cylindrical wall 5 of the vibration isolation and sound insulation device above the floating plate 4 is installed on the support portion of the floating plate 4, and the protruding end of the spring 7 is connected to the upper foundation. 1 Connection or contact, that is, the vibration and sound insulation devices on the upper and lower sides of the support are in the same direction, as shown in Figure 2.

The floating plate 4 of the present invention is in the shape of a "convex", the rail connecting portion 41 in the middle of the floating plate 4 protrudes upward, and the rail connecting portion 41 is provided with a rail installation groove, and the rail 2 is fixed in the form of concrete pouring. In the track installation groove of the floating plate 4, the floating plate 4 extends out of support parts to both sides, and the upper and lower sides of the support part are provided with springs 7 as vibration damping elements. It mainly plays the role of supporting the floating plate and buffering vibration isolation. The spring 7 above the support part of the floating plate 4 can prevent the rebound of the floating plate 4 when it vibrates, and has the effect of two-way buffering and vibration isolation.

The vibration isolation method of the high damping vibration isolation and noise isolation type floating plate track of the present invention is as follows:

First, the installation of the floating plate track is performed.

A vibration and sound insulation device and an elastic buffer layer 9 are arranged on the foundation 1 , the floating plate 4 is installed above the spring 7 of the vibration and sound insulation device, and the vibration and sound insulation are installed above the support parts at both ends of the floating plate 4 device and elastic buffer layer 9;

The upper and lower ends of the composite vibration isolation and sound insulation unit installed above the supports on both sides of the floating plate 4 are respectively connected to the foundation 1 and the floating plate 4. For the convenience of installation, the floating plate 4 is installed first and then the first and second supports are installed. The extension part of the foundation 1 above the support part is further formed by steel plate structure or concrete pouring, and the extension part and the main body of the foundation 1 are fixed as a whole. Further, the vibration and sound insulation device above the floating plate 4 is arranged between the extension part of the foundation 1 and the support part of the floating plate 4 . In order to facilitate the installation of the floating slab track and the replacement of the vibration and sound isolation device, the extension of the foundation 1 is set to a detachable structure. For example, the extension of the foundation 1 adopts a steel structure. Buried anchor bolts.

When the floating plate 4 vibrates, it floats up and down around the initial installation position of the floating plate 4 .

When vibrating, the floating plate 4 moves downward, first compresses the vibration and sound isolation device below, and buffers and isolates the vibration through the lower vibration and sound isolation device. Then, when the floating plate 4 moves upward and returns to its original position, the floating plate 4 still has the upward rebound speed, that is, the floating plate 4 has the inertial energy of upward rebound, the floating plate 4 moves upward, and when it is higher than the initial position, the lower vibration and sound insulation device is stretched, and the upper part of the support part is compressed at the same time. Vibration and sound isolation device to achieve the effect of two-way vibration isolation.

The vibration isolation method of the two-way vibration isolation in this embodiment not only avoids excessive "rebound" of the floating plate 4, but also can buffer the vibration energy of the floating plate 4 in both directions, reduce the vibration response, and make the floating plate 4 float in a shorter time. The plate 4 and the track 2 are restored to be stable, and the positional stability of the track 2 is maintained.

Specifically, in step 2, when the composite vibration isolation and sound insulation unit is used to buffer and isolate the floating plate 4, the floating plate 4 first compresses the spring 7, and the spring 7 and the damping liquid 8 perform first-level vibration reduction on the floating plate 4. ; After the lower surface of the floating plate 4 is in contact with the elastic buffer layer 9, the floating plate 4 compresses the elastic buffer layer 9, and the elastic buffer layer 9 performs secondary vibration reduction on the floating plate 4, and the spring 7 will be further compressed at this time, In the secondary vibration reduction process, both the spring 7 and the elastic buffer layer 9 have the effect of buffering and isolating vibration. The use of a vibration isolation and sound isolation device and an elastic buffer layer to perform vibration isolation and buffering on the floating plate 4 can prevent the floating plate 4 from generating large vibrations and ensure the stability of the track 2 . At the same time, 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 solution provided by this embodiment has at least one of the following technical effects:

The high-damping vibration-isolating and noise-isolating floating plate track of the utility model adopts a damping vibration-isolating and sound-isolating device as a supporting component, and a spring 7, a sound-insulating material 6 and a damping liquid 8 are arranged inside the outer cylindrical wall 5 of the damping-vibration-isolating and sound-insulating device. , can block the transmission of noise generated by rail transit, damping fluid 8 and spring 7 can effectively buffer and weaken the vibration generated during rail transit driving, reduce vibration response, and avoid affecting the living comfort of surrounding residents.

In the present invention, an elastic buffer layer 9 is arranged on the outer side of the cylinder wall 5. The height of the elastic buffer layer 9 is lower than the height of the spring 7 and higher than the height of the cylinder wall 5. When the floating plate 4 vibrates with a small amplitude, the The spring 7 and the damping liquid 8 are used for buffering and damping. When the floating plate 4 vibrates greatly, the compression of the spring 7 is greater than the height difference between the spring 7 and the elastic buffer layer 9, and the floating plate 4 and the elastic buffer The layer 9 is in contact and the elastic buffer layer 9 is compressed. At this time, both the spring and the elastic buffer layer 9 have the effect of buffering and vibration isolation, and the elastic buffer layer 9 can undertake part of the function of buffering and vibration isolation. By setting different heights of the spring and the elastic buffer layer 9 , the present invention sets different levels of vibration isolation strength for different degrees of vibration of the floating plate, so as to achieve the effect of blocking the vibration of the floating plate 4 .

The floating plate 4 of the present invention is in the shape of a "convex", the middle rail connecting portion 41 of the floating plate 4 protrudes upward, and the rail connecting portion 41 is provided with a rail installation groove, and the rail 2 is fixed in the form of concrete pouring. In the track installation groove of the floating plate 4, the floating plate 4 extends out of support parts on both sides, and the upper and lower sides of the support part are provided with springs 7 as vibration damping elements. In the damping liquid, it mainly plays the role of supporting the floating plate 4 and buffering vibration isolation. The vibration isolation and sound isolation device above the support part of the floating plate 4 can prevent the rebound of the floating plate 4 when it vibrates, and play a two-way buffer vibration isolation. Effect.

In the utility model, an elastic buffer layer 9 is arranged between the foundation 1 and the floating plate 4, and the thickness of the elastic buffer layer 9 is higher than the height of the cylinder wall 5 of the vibration isolation and sound insulation device. During rail transportation, the floating plate can be avoided. The vibration amplitude of 4 is too large, and the contact with the cylinder wall 5 produces a rigid impact, which has the effect of protecting the cylinder wall and the floating plate. And when the vibration amplitude of the rail transit unit is large, the floating plate 4 is in contact with the elastic buffer layer 9 to increase the buffer surface, which can prevent the buffer force generated by the vibration from being concentrated at the spring 7, but dispersed on the elastic buffer layer 9. Maintain the stability of buffer vibration isolation, with good vibration damping effect.

The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. The changes or replacements should be covered within the protection scope of 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).

Images