CN216766016U - Be applied to discontinuity vibration isolation barrier in subway vehicle base - Google Patents
Be applied to discontinuity vibration isolation barrier in subway vehicle base Download PDFInfo
- Publication number
- CN216766016U CN216766016U CN202220273884.8U CN202220273884U CN216766016U CN 216766016 U CN216766016 U CN 216766016U CN 202220273884 U CN202220273884 U CN 202220273884U CN 216766016 U CN216766016 U CN 216766016U
- Authority
- CN
- China
- Prior art keywords
- vibration isolation
- vehicle base
- subway vehicle
- isolation barrier
- discontinuous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000002955 isolation Methods 0.000 title claims abstract description 91
- 230000004888 barrier function Effects 0.000 title claims abstract description 38
- 239000002689 soil Substances 0.000 claims abstract description 15
- 239000002440 industrial waste Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 10
- 238000010276 construction Methods 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- 102100040287 GTP cyclohydrolase 1 feedback regulatory protein Human genes 0.000 description 2
- 101710185324 GTP cyclohydrolase 1 feedback regulatory protein Proteins 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- -1 SiO2 and Al2O3 Chemical class 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Images
Landscapes
- Foundations (AREA)
Abstract
The utility model belongs to the technical field of rail transit environment vibration control, and discloses a discontinuous vibration isolation barrier applied to a subway vehicle base, which is arranged in foundation soil below two sides of a railway ballast of the subway vehicle base, and comprises at least two rows of vibration isolation piles, wherein the depth D of each vibration isolation pile meets the following conditions: 0.71 lambdaR≤D≤0.82λRWherein λ isRThe wave length of the Rayleigh wave in the foundation soil of the first layer at the bottom of the railway ballast. The discontinuous vibration isolation barrier can effectively reduce the covering construction of the subway vehicle base caused by vehicle-induced vibration induced by subway operationThe impact of the building industry. The discontinuous vibration isolation barrier effectively reduces the propagation energy of the vibration waves by utilizing the phase difference formed by reflection, refraction and diffraction of the vibration waves after encountering the vibration isolation barrier, thereby achieving the purpose of vibration isolation reduction.
Description
Technical Field
The utility model belongs to the technical field of rail transit environment vibration control, and particularly relates to a discontinuous vibration isolation barrier for a subway vehicle base.
Background
The subway vehicle base is usually used for overhauling and parking trains and is a land block with the largest land area in centralized use in subway engineering construction. With the development of economy and the acceleration of urbanization in China, the subway vehicle base and ground cover complex takes public transportation as guidance, fully utilizes the ground space and the overground space of a vehicle section block, adopts a three-dimensional overlapped development mode to intensively develop the urban space, and is one of important measures for solving the crisis of urban population, land resources and environment. The property development by utilizing the upper space is a win-win way for improving the urban land utilization rate and the subway investment return rate. However, vibration generated by frequent operation of subway trains is transmitted to the upper cover building through the track foundation, the soil layer, the building foundation and the vehicle section upper cover platform, so that the structural vibration of the upper cover building is easily caused, secondary structure noise is further induced, and the sustainable development of normal life and physical and mental health of people is influenced. Therefore, the environmental problem caused by train vibration has become a key factor for restricting the success of the development of the subway vehicle base floor cover complex.
The vibration reduction measures of the subway main track are generally divided into three levels of medium level, high level and special level, and graded vibration reduction is carried out according to superscalar, but the common vibration reduction and noise reduction measures of the main track are not necessarily suitable for a vehicle section because the base line of the subway vehicle is greatly different from the main track. The existing vibration isolation barrier research mainly aims at the vibration problem of ground traffic (railways, highways and urban viaducts), and one remarkable difference of the vibration problem of the subway vehicle base with the upper cover building relative to the vibration of the ground traffic is that the space relationship between a vibration source and the building is different, the vibration caused by the train operation of the subway vehicle base is positioned right below the upper cover building, the distance is short, and the frequency spectrum component is complex. Although the existing vibration reduction measures have a certain vibration reduction effect on buildings close to the track, the subway vehicle base with the upper cover building has short history of appearance and development in China, few actual projects and is still in an exploration stage, and the uncertainty exists and further research is needed if the existing vibration reduction measures are suitable for vibration control of the subway vehicle base with the upper cover building. In addition, the current vibration reduction design of the vehicle section is concentrated on vibration reduction at a vibration source, more vibration reduction devices such as ballast pads and trapezoidal sleepers are used, and the manufacturing cost is high. Therefore, there is an urgent need to research economic, efficient and applicable vibration isolation measures for subway vehicle bases
Disclosure of Invention
In order to overcome the defects of the conventional vibration isolation technology, the utility model provides a discontinuous vibration isolation barrier applied to a subway vehicle base.
The utility model provides a be applied to discontinuous vibration isolation protective screen in subway vehicle base, discontinuous vibration isolation protective screen is located in the foundation soil of railway ballast both sides below of subway vehicle base, discontinuous vibration isolation protective screen includes two rows at least vibration isolation piles, the degree of depth D of vibration isolation pile satisfies following condition: 0.71 lambdaR≤D≤0.82λRWherein λ isRThe wave length of the Rayleigh wave in the foundation soil of the first layer at the bottom of the railway ballast.
Preferably, the distance S between the vibration isolation pile close to the innermost side of the ballast and the track center line of the ground railway vehicle base meets the following condition: 1.43 lambdaR≤S≤1.6λRWherein λ isRThe wave length of the Rayleigh wave in the foundation soil of the first layer at the bottom of the railway ballast.
Preferably, a plurality of the vibration isolation piles are arranged at intervals in each row, and the vibration isolation piles in adjacent rows are arranged in a staggered straight line manner.
Preferably, the transverse section of each vibration isolation pile is square, the side length a of the transverse section of each vibration isolation pile is 3a, and the axial center distance between adjacent rows of vibration isolation piles is 3 a; and the distance between the vibration isolation piles in the same row is 3 a.
Preferably, the vibration isolation pile comprises a hollow pile and a filling material filled in the hollow pile.
Preferably, the hollow pile comprises a rigid outer layer and a resilient inner layer arranged from outside to inside.
Preferably, the elastic inner layer comprises an elastic substrate and a plurality of bumps arranged on the elastic substrate; the inner side wall of the rigid outer layer is provided with a plurality of grooves matched with the bumps.
Preferably, the bumps are elastic shaped bumps.
Preferably, the filling material is industrial waste lightweight aggregate concrete.
The utility model has the beneficial effects that:
the utility model provides a discontinuous vibration isolation barrier applied to a subway vehicle base, which is arranged in foundation soil below two sides of a ballast of the subway vehicle base, and comprises at least two rows of vibration isolation piles, wherein the depth D of each vibration isolation pile meets the following conditions: 0.71 lambdaR≤D≤0.82λR. The discontinuous vibration isolation barrier can effectively reduce the influence of vehicle-induced vibration induced by subway operation on the subway vehicle foundation ground cover building property. The vibration isolation barrier structure effectively reduces the propagation energy of the vibration waves by utilizing the phase difference formed by reflection, refraction and diffraction of the vibration waves after the vibration waves encounter the vibration isolation barrier, so that the aim of vibration isolation is fulfilled.
Drawings
FIG. 1 is a schematic view of the overall structure of a non-continuous vibration isolation barrier according to the present invention
FIG. 2 is a schematic view of the position relationship between a non-continuous vibration isolation barrier and an upper cover building structure according to the present invention;
fig. 3 is a plan view illustrating the arrangement of the vibration isolation piles of the discontinuous vibration isolation barrier according to the present invention;
FIG. 4 is a schematic perspective view of a hollow pile of a discontinuous vibration isolation barrier according to the present invention;
FIG. 5 is a schematic cross-sectional view of a hollow pile of a non-continuous vibration isolation barrier of the present invention;
FIG. 6 is a schematic longitudinal cross-sectional view of a hollow pile of a non-continuous vibration isolation barrier of the present invention;
FIG. 7 is a schematic perspective view of a rigid outer layer of a non-continuous vibration isolation barrier according to the present invention;
FIG. 8 is a schematic perspective view of the resilient inner layer of the non-continuous vibration isolation barrier of the present invention;
in the figure:
1. a vibration isolation pile; 2. a soil layer; 3. a train; 4. a subway vehicle foundation ground cover building; 5. ballast; 6. hollow piles; 61. a rigid outer layer; 62. an elastic inner layer; 611. a groove; 621. an elastic substrate; 622. a bump; D. the depth of the vibration isolation barrier; s, the distance from the vibration isolation pile close to the innermost side of the railway ballast of the subway vehicle base to the central line of the railway track of the subway vehicle base; a. the side length of the vibration isolation pile.
Detailed Description
The utility model will be described in detail below with reference to the accompanying drawings and embodiments in order to make the technical field better understand the scheme of the utility model, and the description in this section is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.
As shown in fig. 1 and 2, a discontinuous vibration isolation barrier applied to a subway vehicle base is arranged in foundation soil below two sides of a ballast 5 of the subway vehicle base, the discontinuous vibration isolation barrier is horizontally located in a soil layer 2 between the ballast 5 and a pile foundation of a subway vehicle section upper cover building 4, the discontinuous vibration isolation barrier comprises at least two rows of vibration isolation piles 1, and the depth D of the vibration isolation barrier and the distance S between the vibration isolation pile 1 which is close to the innermost side of the ballast 5 and a track center line of the subway vehicle base satisfy the following conditions: 0.71 lambdaR≤D≤0.82λR，1.43λR≤S≤1.6λR，λRIs the wavelength of the Rayleigh wave in the first layer of foundation soil at the bottom of the ballast 5. The Rayleigh wavelength of the foundation soil of the first floor of the subway vehicle base is 6.5m, so that D is more than or equal to 4.6 and less than or equal to 5.33, and S is more than or equal to 9.2 and less than or equal to 10.4.The number of rows of the vibration isolation piles 1 can be determined by referring to the distance between the central line of the track and the underground pile foundation of the upper cover building, and 3 rows of vibration isolation piles 1 are adopted in the embodiment.
The subway train 3 runs on the track, the train-induced vibration induced by the running of the subway train 3 is a vibration source, the subway vehicle foundation upper cover building 4 influenced by the vibration is a vibration receptor, and the influence of the train-induced vibration induced by the running of the subway on the subway vehicle foundation upper cover building 4 property can be effectively reduced by arranging the discontinuous vibration isolation barrier.
As shown in fig. 3, a plurality of the vibration isolation piles 1 are arranged at intervals in each row, and are arranged in a linear arrangement manner; the vibration isolation piles 1 in the adjacent rows are arranged in a staggered straight line mode, namely the vibration isolation piles 1 in the adjacent two rows are arranged in an axis staggered mode.
Preferably, the transverse cross section of each vibration isolation pile 1 is square, the side length of the transverse cross section in this embodiment is 80cm, and the axial center distance between adjacent rows of vibration isolation piles 1 is 3a, that is, 240 cm; the distance between the vibration isolation piles 1 in the same row is 3a, namely 240 cm.
The vibration isolation piles 1 are arranged in a mode that the axes of the multiple rows of vibration isolation piles 1 are staggered, the multiple rows of vibration isolation piles 1 can be well connected to form a vibration isolation system, and vibration isolation effect is achieved by dissipating vibration energy through refraction, reflection and transmission of incident waves.
As shown in fig. 4 and 5, the vibration isolation pile 1 includes a hollow pile 6 and a filling material filled in the hollow pile 6.
Specifically, the filling material is industrial waste lightweight aggregate concrete. The industrial waste lightweight aggregate concrete is prepared according to the proportion of the lightweight aggregate concrete, wherein the proportion is as follows according to the dosage of each material in each cubic industrial waste lightweight aggregate concrete: 280kg of cement, 450kg of industrial waste fly ash ceramsite, 160kg of mineral powder, 310kg of sand, 180kg of water and 7kg of water reducing agent. Wherein the density of the fly ash ceramsite is 600-750kg/m3The diameter of the spherical ceramsite is less than 10 mm. The filling material takes the industrial waste lightweight aggregate as the main component, so that the industrial waste is recycled, the adoption of the industrial waste lightweight aggregate is beneficial to reducing the production cost of lightweight aggregate concrete and reducing environmental pollution,and is also beneficial to reducing the land occupied by the piled waste.
More specifically, the method of manufacturing the vibration isolation pile 1 is as follows: the prefabricated hollow pile 6 is sent to the site and then positioned and set off according to the design requirement, a pile hole is drilled through a crawler-type jet grouting drilling machine, and after the pile hole is formed, the prefabricated hollow pile 6 is sent into the pile hole. After the hollow pile 6 enters the hole, pouring the prepared industrial waste lightweight aggregate concrete, wherein a layered pouring mode is adopted during pouring, so that the compactness of the filling material is ensured. And backfilling to level the field after pile filling is finished.
Preferably, the hollow pile 6 comprises a rigid outer layer 61 and a resilient inner layer 62 arranged from the outside to the inside. The rigid outer layer 61 and the elastic inner layer 62 are both manufactured in a prefabrication mode, and the hollow pile 6 is prefabricated through the prefabricated rigid outer layer 61 and the prefabricated elastic inner layer 62, so that the hollow pile 6 with the composite structure is obtained.
Wherein the rigid outer layer 61 is a prefabricated hollow sleeve prepared by adopting glass fiber reinforced polymer GFRP. The glass fiber reinforced polymer GFRP is composed of a fiber material and a high molecular weight olefin polymer. The fibers are composed of various metal oxides, such as SiO2 and Al2O3, which have excellent mechanical properties and high tensile strength, are readily available and inexpensive, have a certain economic benefit, and provide sufficient ductility by the addition of high molecular weight olefin polymers. The novel composite material has excellent bending fatigue resistance and reasonable ductility. The material also has low water absorption rate and excellent corrosion resistance, and is suitable for being used in a humid environment around the wall of a basement at the periphery of a building.
Preferably, the elastic inner layer 62 includes an elastic substrate 621 and a plurality of protrusions 622 disposed on the elastic substrate 621; further preferably, the bump 622 is an elastic shaped bump. The elastic substrate 621 is a rubber plate, the protrusion 622 is a rubber protrusion, two sides of the elastic substrate 621 are both provided with an elastic irregular protrusion, the elastic substrate 621 and the protrusion 622 form an irregular rubber plate, that is, the elastic inner layer 62 is an irregular elastic inner layer. The rubber plate and the rubber bump are made of rubber with static rigidity of 300-400MPa/m and elastic modulus of 4-5 MPa.
Preferably, the inner side wall of the rigid outer layer 61 is provided with a plurality of grooves 611 adapted to the protrusions 622. Therefore, the elastic inner layer 62 can be matched with the rigid outer layer 61 in a staggered manner to form the hollow pile 6 in a composite manner, so that the buffer effect of the elastic inner layer 62 can be exerted, the vibration damping of the vibration isolation system is improved, and the falling-off is avoided; on the other hand, the adhesion of the filler to the elastic inner layer 62 can be improved.
The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.
Claims (9)
1. The utility model provides a be applied to discontinuous vibration isolation barrier in subway vehicle base, its characterized in that, discontinuous vibration isolation barrier is located in the foundation soil of railway ballast (5) both sides below of subway vehicle base, discontinuous vibration isolation barrier includes two rows at least vibration isolation stake (1), the degree of depth D of vibration isolation stake (1) satisfies following condition: 0.71 lambdaR≤D≤0.82λRWherein λ isRThe wave length of the Rayleigh wave in the first layer of foundation soil at the bottom of the ballast (5).
2. The discontinuous vibration isolation barrier applied to the subway vehicle base is characterized in that the distance S between the vibration isolation pile (1) which is close to the innermost side of the railway ballast (5) and the track center line of the subway vehicle base meets the following condition: 1.43 lambdaR≤S≤1.6λRWherein λ isRThe wave length of the Rayleigh wave in the first layer of foundation soil at the bottom of the ballast (5).
3. The discontinuous vibration isolation barrier applied to the subway vehicle base as claimed in claim 2, wherein said vibration isolation piles (1) in each row are arranged in plurality at intervals, and said vibration isolation piles (1) in adjacent rows are arranged in a staggered straight line manner.
4. The discontinuous vibration isolation barrier applied to the subway vehicle base as claimed in claim 3, wherein the transverse section of said vibration isolation piles (1) is square, the side length a of the transverse section of said vibration isolation piles (1), and the axial distance between adjacent rows of said vibration isolation piles (1) is 3 a; the distance between the vibration isolation piles (1) in the same row is 3 a.
5. The discontinuous vibration isolation barrier applied to the subway vehicle base according to claim 4, wherein said vibration isolation piles (1) comprise hollow piles (6) and filling materials filled in said hollow piles (6).
6. The discontinuous vibration isolation barrier applied to a subway vehicle base as claimed in claim 5, wherein said hollow pile (6) comprises a rigid outer layer (61) and an elastic inner layer (62) arranged from outside to inside.
7. The discontinuous vibration isolation barrier applied to a subway vehicle base as claimed in claim 6, wherein said elastic inner layer (62) comprises an elastic substrate and a plurality of projections (622) arranged on said elastic substrate (621); the inner side wall of the rigid outer layer (61) is provided with a plurality of grooves (611) matched with the bumps (622).
8. The discontinuous vibration isolation barrier applied to a subway vehicle base as claimed in claim 7, wherein said bumps (622) are elastic shaped bumps.
9. The discontinuous vibration isolation barrier applied to a subway vehicle base as claimed in claim 8, wherein said filling material is industrial waste lightweight aggregate concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220273884.8U CN216766016U (en) | 2022-02-10 | 2022-02-10 | Be applied to discontinuity vibration isolation barrier in subway vehicle base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220273884.8U CN216766016U (en) | 2022-02-10 | 2022-02-10 | Be applied to discontinuity vibration isolation barrier in subway vehicle base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216766016U true CN216766016U (en) | 2022-06-17 |
Family
ID=81956606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220273884.8U Expired - Fee Related CN216766016U (en) | 2022-02-10 | 2022-02-10 | Be applied to discontinuity vibration isolation barrier in subway vehicle base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216766016U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635319A (en) * | 2022-04-18 | 2022-06-17 | 武汉铁路职业技术学院 | Discontinuous vibration isolation belt for reducing railway environment vibration |
| CN115627793A (en) * | 2022-09-21 | 2023-01-20 | 广州大学 | Vibration isolation pile structure and construction method thereof |
-
2022
- 2022-02-10 CN CN202220273884.8U patent/CN216766016U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635319A (en) * | 2022-04-18 | 2022-06-17 | 武汉铁路职业技术学院 | Discontinuous vibration isolation belt for reducing railway environment vibration |
| CN114635319B (en) * | 2022-04-18 | 2023-01-24 | 武汉铁路职业技术学院 | Discontinuous vibration isolation belt for reducing railway environment vibration |
| CN115627793A (en) * | 2022-09-21 | 2023-01-20 | 广州大学 | Vibration isolation pile structure and construction method thereof |
| CN115627793B (en) * | 2022-09-21 | 2024-06-07 | 广州大学 | Vibration isolation pile structure and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216766016U (en) | Be applied to discontinuity vibration isolation barrier in subway vehicle base | |
| CN104213514B (en) | A kind of earthing corrugated steel-concrete combination arch bridge add strong method | |
| CN204455724U (en) | For the integral structure of Deep Thick Soft Ground Area roadbed track | |
| US20140314502A1 (en) | Polymer grouting method for uplifting ballastless track of high-speed rail | |
| CN104947721B (en) | Subway car depot testing line composite vibration-isolation barrier | |
| CN108301338A (en) | Mitigate barrier vibration isolation structure and method that Subway Vibration influences periphery heritage buildings | |
| CN103981777A (en) | Metro shock absorption and vibration isolation elastic mixed light track bed | |
| CN112681163A (en) | Inclined pile vibration isolation barrier for reducing vibration induced by subway operation and preparation method thereof | |
| CN201620347U (en) | Reinforced concrete body vibration isolation unit | |
| CN112081603B (en) | Vibration-damping and noise-preventing subway tunnel system and construction method | |
| CN113355955B (en) | Vibration reduction method for water-rich stratum rail transit structure | |
| CN215442016U (en) | Subway station track line partition wall structure | |
| CN208328734U (en) | A kind of barrier vibration isolation structure for mitigating Subway Vibration and periphery heritage buildings being influenced | |
| CN113355954B (en) | Improved vibration damping method for rail transit structure | |
| Liu et al. | High-Speed Railway Lines | |
| CN114232462A (en) | Urban rail transit corrugated steel-concrete U-shaped combination beam and construction method thereof | |
| CN110735504B (en) | Rotary stair node connecting device capable of dissipating energy and damping shock | |
| CN204151703U (en) | A kind of MULTILAYER COMPOSITE precast concrete sound barrier panel | |
| CN207829149U (en) | A kind of construction floor lightweight vibration insulation structure | |
| CN113201982B (en) | Vibration reduction method of rail transit structure | |
| CN111424470A (en) | Subway vibration damping composite foundation and construction method thereof | |
| CN219452112U (en) | Periodic lining structure for reducing vibration propagation in tunnel | |
| CN205313944U (en) | Restoration structure of impaired concrete road surface panel | |
| CN216338965U (en) | Road bridge building engineering is with bridge T roof beam that possesses additional strengthening | |
| Grootenhuis | 9 Structural elastomeric bearings and resilient seatings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220617 |