CN109899086A - A kind of tunnel is every shock absorption system - Google Patents
A kind of tunnel is every shock absorption system Download PDFInfo
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- CN109899086A CN109899086A CN201910198565.8A CN201910198565A CN109899086A CN 109899086 A CN109899086 A CN 109899086A CN 201910198565 A CN201910198565 A CN 201910198565A CN 109899086 A CN109899086 A CN 109899086A
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- Prior art keywords
- tunnel
- flexible
- shock absorption
- damping device
- absorption system
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- 230000035939 shock Effects 0.000 title claims abstract description 21
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 20
- 238000002955 isolation Methods 0.000 claims abstract description 44
- 238000013016 damping Methods 0.000 claims abstract description 41
- 239000002689 soil Substances 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000007769 metal material Substances 0.000 claims description 5
- 230000010412 perfusion Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 2
- 230000011218 segmentation Effects 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 claims 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000005461 lubrication Methods 0.000 abstract description 3
- 239000012141 concentrate Substances 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 238000003325 tomography Methods 0.000 description 3
- 229910000576 Laminated steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000036244 malformation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000010410 reperfusion Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of tunnels every shock absorption system, including Seismic Isolation of Isolation Layer and several flexible damping devices, the Seismic Isolation of Isolation Layer is between tunnel periphery and the soil body or between tunnel outer lining cutting pipe ring and tunnel internal lining cutting pipe ring, the flexible damping device is arranged in tunnel joint, the flexible damping device is arranged to a circle along tunnel inner wall surrounding, and the both ends of the flexible damping device are connected on the tunnel pipe ring of tunnel connector two sides.Since " lubrication " of Seismic Isolation of Isolation Layer acts on, overall deformation joint open of the tunnel structure under earthquake will effectively concentrate on the flexible tunnel joint for being provided with flexible damping device, to reduce the deformation in the other places in tunnel, flexible damping device, which can dissipate, seismic energy and focuses on waterproof.It is acted synergistically by two parts of the system, deformation and the waterproof ability of tunnel structure can be enhanced, effectively improve the safety that tunnel structure crosses over earthquake fault.
Description
Technical field
The present invention relates to Tunnel Engineering and underground space engineering field, in particular to a kind of tunnel is every shock absorption system.
Background technique
In past seismic history, people before nineteen ninety-five are it is generally believed that underground structure is constrained by surrounding soil, vibration
Amplitude is smaller compared with ground structure, it is more difficult to be influenced by earthquake disaster, therefore the Discussion on Seismic Design of tunnel structure compares ground
Much less is wanted in the concern that structure is subject to.But nineteen ninety-five Japan's Osaka-Kobe earthquake has broken the inertial thinking of people.In this secondary earthquake,
Subway station-running tunnel is the Large Underground Structure subject to severe risks of damage of representative, exposes the weakness of underground structure antidetonation,
This just causes close attention of the common people to underground structure earthquake damage.
The underground engineering in passing China is less to the concern of Aseismic Design, encounters near earthquake tomography or crosses over earthquake fault
When, the means avoided are usually taken.But with China's expanding economy and the western great demand of country is greatly developed, it is right
In this long line style underground infrastructure in tunnel, Earthquake Fault Zone can not be necessarily avoided." the underground knot of the newest promulgation in China at present
Structure seismic fortification criterion " it also indicates that in (GB/T51336-2018), when tunnel can not avoid earthquake fault, preferably set using flexibility
Meter.
Therefore, a kind of flexibility of good damping effect is designed every shock absorption system, it appears particularly important.
Summary of the invention
The purpose of the present invention is to provide a kind of tunnels every shock absorption system, to solve mentioned above in the background art ask
Topic.
Used technical solution to solve above-mentioned technical problem: a kind of tunnel every shock absorption system, including Seismic Isolation of Isolation Layer and
Several flexible damping devices, the Seismic Isolation of Isolation Layer is between tunnel periphery and the soil body or positioned at tunnel outer lining cutting pipe ring and tunnel
Inside road between lining cutting pipe ring, the flexible damping device is arranged in tunnel joint, and the flexible damping device is along tunnel
Wall surrounding is arranged to a circle, and the both ends of the flexible damping device are connected on the tunnel pipe ring of tunnel connector two sides.
As an improvement of the above scheme, Seismic Isolation of Isolation Layer setting is all in crossover fault or geology soil layer sudden change region
The length that the flexible damping device is laid covers the length of crossover fault or geology soil layer sudden change region, and the flexibility subtracts
Shaking device and laying in full coverage type arrangement or the flexible damping device at it in its laying length is in sectional in length
Formula arrangement.
As an improvement of the above scheme, the Seismic Isolation of Isolation Layer is made of the flexible material that can be blocked water.
As an improvement of the above scheme, the Seismic Isolation of Isolation Layer is completed to construct by way of perfusion.
As an improvement of the above scheme, the flexible damping device includes built-in connection, steel strand wires and energy dissipating unit,
The quantity of the built-in connection is two and is individually fixed on the tunnel pipe ring of tunnel connector two sides, the number of the steel strand wires
Amount is two and is respectively and fixedly connected in the end of built-in connection, and the energy dissipating unit is connected between steel strand wires.
As an improvement of the above scheme, the flexible damping device further includes flexible waterstop, the flexible waterstop position
In the outside of energy dissipating unit, the both ends of the flexible waterstop are sealedly connected on respectively on the tunnel pipe ring of tunnel connector two sides.
As an improvement of the above scheme, the interior of tunnel pipe ring is fixed on by laminated steel in the both ends of the flexible waterstop
Wall.
As an improvement of the above scheme, one or more hermetic seal items are provided between the tunnel connector, it is described close
Sealing water bar is located at the outside of flexible waterstop.
As an improvement of the above scheme, the energy dissipating unit uses the metal material with good hysteretic energy to be made.
As an improvement of the above scheme, the metal material is marmem.
The utility model has the advantages that the system is combined and is constituted by Seismic Isolation of Isolation Layer and several flexible damping devices, in crossover fault or geology
Soil layer sudden change region is infused first between tunnel and the soil body or between tunnel outer lining cutting pipe ring and tunnel internal lining cutting pipe ring
Enter waterproof flexible material layer, for reducing the direct input earthquake to tunnel structure, reduces friction of the country rock to structure
Constraint is conducive to malformation concentration, and can prevent the pressure water in soil layer from penetrating into tunnel.Since " lubrication " of Seismic Isolation of Isolation Layer is made
With overall deformation joint open of the tunnel structure under earthquake connects the flexible tunnel for effectively concentrating on being provided with flexible damping device
Head place, to reduce the deformation in the other places in tunnel, flexible damping device, which can dissipate, seismic energy and focuses on waterproof.It is logical
Two parts synergistic effect for crossing the system, can enhance deformation and the waterproof ability of tunnel structure, effectively improve tunnel structure leap
The safety of earthquake fault.
Detailed description of the invention
The present invention is described further with reference to the accompanying drawings and examples:
Fig. 1 is a kind of vertical section schematic diagram of the tunnel of embodiment every shock absorption system；
Fig. 2 is a kind of schematic cross-sectional view of the tunnel of embodiment every shock absorption system；
Fig. 3 is flexible damping device structural schematic diagram.
Specific embodiment
Referring to Figures 1 and 2, a kind of tunnel of the embodiment of the present invention is suitable near earthquake tomography or crosses over ground every shock absorption system
Massif tunnel, urban subway tunnel, pipe gallery and seabed tunnel that tomography is built are shaken, with being particularly suitable for high intensity Zone
The tunnel built under the soil layer of matter complicated condition.
The system is mainly composed of Seismic Isolation of Isolation Layer 10 and several flexible damping devices 20, in crossover fault 30 or geology
Seismic Isolation of Isolation Layer 10 is arranged between tunnel periphery and the soil body 50 for soil layer sudden change region.Seismic Isolation of Isolation Layer 10 is by the flexible material that can block water
It is made, holds load and waterproof ability, good durability and elastic deformability with certain, tunnel is wrapped in by reperfusion mode
On the outside of road, to form flexible shock insulation waterproof layer together between tunnel and the external soil body 50, can effectively obstruct seismic energy to
The propagation of tunnel internal can effectively reduce moment of flexure and the axle power effect in tunnel under earthquake, reduces seismic force and makees to the destruction in tunnel
With and the soil body 50 frictional constraint of structure is acted on, be conducive to the deformation of tunnel structure and play waterproof action.Seismic Isolation of Isolation Layer 10
Used flexible material can be pitch, silica gel, fluid rubbers, low-elasticity-modulus cement mortar, non-aqueous reaction class high polymer material
Deng.Selected flexible material need to have certain initial fluidity, convenient for using the construction technology of perfusion, while should also have certain
Loading capability is held, guarantees that tunnel will not generate additional depression under normal use load.Meanwhile Seismic Isolation of Isolation Layer 10 may also set up in tunnel
Between the external lining cutting pipe ring in road and internal lining cutting pipe ring, it is likewise supplied with above-mentioned technical effect.
Flexible damping device 20 is arranged at tunnel connector 42, and flexible damping device 20 is arranged to one along tunnel inner wall surrounding
Circle, the both ends of flexible damping device 20 are connected on the tunnel pipe ring 41 of 42 two sides of tunnel connector.
Specifically, as shown in figure 3, flexible damping device 20 includes built-in connection 21, steel strand wires 22 and energy dissipating unit
23, the quantity of built-in connection 21 is two and is individually fixed on the tunnel pipe ring 41 of 42 two sides of tunnel connector, steel strand wires 22
Quantity be two and to be respectively and fixedly connected in the end of built-in connection 21, energy dissipating unit 23 is connected between steel strand wires 22, can be released
The compression that energy dissipating unit 23 is subject to is put, prevents energy dissipating unit 23 from buckling failure occurs, while loosening or cancelling former tunnel pipe ring
Assembled bolt in 41 forms and can produce the flexible damping connector that deformation is concentrated.
The length that all flexible damping devices 20 are laid covers crossover fault 30 or geology soil layer sudden change region
Length to adapt to tunnel since earthquake fault punching causes large deformation, and consumes energy by the energy dissipation behavior of energy dissipating unit 23
Amount improves safety of the tunnel under geological process.It can be in full coverage type cloth that flexible damping device 20 is laid in length at it
It sets, can also arrange in subregion segmentation, be determined with specific reference to cost control and demand.
Flexible damping device 20 further includes flexible waterstop 24, and flexible waterstop 24 is located at the outside of energy dissipating unit 23, stretches
The both ends of contracting waterstop 24 are sealedly connected on respectively on the tunnel pipe ring 41 of 42 two sides of tunnel connector.Flexible damping fills in order to prevent
20 are set when generating large deformation joint open, external pressure water or hack enter in tunnel, and large deformation is stretched waterstop 24
It is fixed on 41 inner wall of tunnel pipe ring of 42 two sides of tunnel connector by laminated steel, plays the role of sealing waterproof.Simultaneously in flexibility
Energy dissipating material and large deformation are arranged at node to stretch waterstop 24, can dissipate seismic energy and convenient for centralized processing waterproof.
Preferably, one or more hermetic seal items 25 are provided between tunnel connector 42, hermetic seal item 25 in Fig. 3
Quantity be two, hermetic seal item 25 is located at the outside of flexible waterstop 24, and hermetic seal item 25 can equally play waterproof work
With, with flexible waterstop 24 cooperate, bring more preferably waterproof effect.
Preferably, energy dissipating unit 23 can be had low initial stiffness, low-yield, high ductility expansion and contraction by one kind, and
Metal material with good hysteretic energy is made, such as soft rigid, SMA marmem etc..When using SMA marmem
When, due to its hyperelastic characteristic, which is also equipped with certain runback bit function, can after earthquake reply portion
Divide the residual deformation in tunnel, is safeguarded after reducing shake.
The system is made of Seismic Isolation of Isolation Layer 10 and the combination of several flexible damping devices 20, in crossover fault 30 or geology soil layer
Sudden change region is injected first between tunnel and the soil body 50 or between tunnel outer lining cutting pipe ring and tunnel internal lining cutting pipe ring
Waterproof flexible material layer reduces country rock to the friction of structure about for reducing the direct input earthquake to tunnel structure
Beam is conducive to malformation concentration, and can prevent the pressure water in soil layer from penetrating into tunnel.Since " lubrication " of Seismic Isolation of Isolation Layer 10 is made
With overall deformation joint open of the tunnel structure under earthquake will effectively concentrate on the flexible tunnel for being provided with flexible damping device 20
At connector 42, to reduce the deformation in the other places in tunnel, flexible damping device 20 can dissipate seismic energy and centralized processing
Waterproof.It is acted synergistically by two parts of the system, deformation and the waterproof ability of tunnel structure can be enhanced, effectively improve tunnel knot
Structure crosses over the safety of earthquake fault.
Flexible damping device 20 is arranged in certain specific positions in tunnel, is collected by deformation and neutralizes energy dissipation, and done
Good second water-proofing treatment is suitable for the large deformation that tunnel is generated in these specific regions due to earthquake, so that effective protection is all
The seismic safety of other tunnel pipe rings 41 of side.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned embodiment party
Formula within the scope of knowledge possessed by those of ordinary skill in the art can also be before not departing from present inventive concept
Put that various changes can be made.
Claims (10)
1. a kind of tunnel is every shock absorption system, it is characterised in that: including Seismic Isolation of Isolation Layer and several flexible damping devices, the Seismic Isolation of Isolation Layer
Between tunnel periphery and the soil body or between tunnel outer lining cutting pipe ring and tunnel internal lining cutting pipe ring, the flexibility
Damping device is arranged in tunnel joint, and the flexible damping device is arranged to a circle along tunnel inner wall surrounding, and the flexibility subtracts
The both ends of shake device are connected on the tunnel pipe ring of tunnel connector two sides.
2. tunnel according to claim 1 is every shock absorption system, it is characterised in that: Seismic Isolation of Isolation Layer setting in crossover fault or
Geology soil layer sudden change region, the length that all flexible damping devices are laid covers crossover fault or geology soil layer is prominent
Become the length in region, the flexible damping device is laid in length at it in full coverage type arrangement or flexible damping dress
It sets to lay in length at it and be arranged in subregion segmentation.
3. tunnel according to claim 2 is every shock absorption system, it is characterised in that: the Seismic Isolation of Isolation Layer is by the flexible material that can block water
Material is made.
4. tunnel according to claim 3 is every shock absorption system, it is characterised in that: the Seismic Isolation of Isolation Layer is complete by way of perfusion
At construction.
5. tunnel according to claim 2 is every shock absorption system, it is characterised in that: the flexible damping device includes pre-buried company
Fitting, steel strand wires and energy dissipating unit, the quantity of the built-in connection are two and are individually fixed in tunnel connector two sides
On tunnel pipe ring, the quantity of the steel strand wires is two and is respectively and fixedly connected in the end of built-in connection that the energy dissipating unit connects
It connects between steel strand wires.
6. tunnel according to claim 5 is every shock absorption system, it is characterised in that: the flexible damping device further includes stretching
Waterstop, the flexible waterstop are located at the outside of energy dissipating unit, and the both ends of the flexible waterstop are sealedly connected on tunnel respectively
On the tunnel pipe ring of road connector two sides.
7. tunnel according to claim 6 is every shock absorption system, it is characterised in that: the both ends of the flexible waterstop pass through pressure
Interal fixation is in the inner wall of tunnel pipe ring.
8. tunnel according to claim 6 is every shock absorption system, it is characterised in that: be provided with one between the tunnel connector
Or multiple hermetic seal items, the hermetic seal item are located at the outside of flexible waterstop.
9. tunnel according to claim 5 is every shock absorption system, it is characterised in that: the energy dissipating unit is used with good stagnant
The metal material for returning energy consumption is made.
10. tunnel according to claim 9 is every shock absorption system, it is characterised in that: the metal material is shape memory conjunction
Gold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910198565.8A CN109899086A (en) | 2019-03-15 | 2019-03-15 | A kind of tunnel is every shock absorption system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910198565.8A CN109899086A (en) | 2019-03-15 | 2019-03-15 | A kind of tunnel is every shock absorption system |
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| Publication Number | Publication Date |
|---|---|
| CN109899086A true CN109899086A (en) | 2019-06-18 |
Family
ID=66953355
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910198565.8A Pending CN109899086A (en) | 2019-03-15 | 2019-03-15 | A kind of tunnel is every shock absorption system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706354A (en) * | 2020-07-06 | 2020-09-25 | 四川农业大学 | Frozen soil layer fracture zone tunnel shock-absorbing structure |
| CN111779502A (en) * | 2020-07-20 | 2020-10-16 | 中铁第四勘察设计院集团有限公司 | Tunnel shock insulation structure and construction process |
| CN112031815A (en) * | 2020-09-22 | 2020-12-04 | 广州大学 | Shock isolation device for connecting left tunnel and right tunnel |
| CN112031808A (en) * | 2020-09-11 | 2020-12-04 | 广州大学 | Connecting device for fixing tunnel and shock insulation tunnel |
| CN112523777A (en) * | 2020-11-19 | 2021-03-19 | 中国电建集团华东勘测设计研究院有限公司 | Shield tunnel reinforcing structure and construction method |
| CN113309529A (en) * | 2021-06-04 | 2021-08-27 | 天津大学 | Subway tunnel deformation detects uses hidden prosthetic devices based on total powerstation |
| CN114086598A (en) * | 2021-12-03 | 2022-02-25 | 河北地质大学 | Multistage shock attenuation anti-seismic device of city utility tunnel |
| CN115977677A (en) * | 2023-01-10 | 2023-04-18 | 广州大学 | Double-layer tunnel shock insulation structure and construction method thereof |
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| JP2004084182A (en) * | 2002-08-23 | 2004-03-18 | Taisei Corp | Flexible shock absorber of shield tunnel |
| CN106337690A (en) * | 2016-11-16 | 2017-01-18 | 中国科学院武汉岩土力学研究所 | Waterproof joint structure of tunnel lining in cross fault area and construction method thereof |
| CN107255036A (en) * | 2017-07-31 | 2017-10-17 | 广州大学 | Self-resetting pressure-bearing damping sealing part and tunnel flexible joint |
| CN108252721A (en) * | 2018-01-11 | 2018-07-06 | 北京工业大学 | It is a kind of to be hinged tunnel and its application for passing through the anti-disconnected type of Active Fault Area |
| CN108506019A (en) * | 2018-05-29 | 2018-09-07 | 中铁二院工程集团有限责任公司 | Duct pieces of shield tunnel filleting anti-drop device |
| CN209838421U (en) * | 2019-03-15 | 2019-12-24 | 广州大学 | Shock insulation and absorption system for tunnel |
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| JP2004084182A (en) * | 2002-08-23 | 2004-03-18 | Taisei Corp | Flexible shock absorber of shield tunnel |
| CN106337690A (en) * | 2016-11-16 | 2017-01-18 | 中国科学院武汉岩土力学研究所 | Waterproof joint structure of tunnel lining in cross fault area and construction method thereof |
| CN107255036A (en) * | 2017-07-31 | 2017-10-17 | 广州大学 | Self-resetting pressure-bearing damping sealing part and tunnel flexible joint |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706354A (en) * | 2020-07-06 | 2020-09-25 | 四川农业大学 | Frozen soil layer fracture zone tunnel shock-absorbing structure |
| CN111779502A (en) * | 2020-07-20 | 2020-10-16 | 中铁第四勘察设计院集团有限公司 | Tunnel shock insulation structure and construction process |
| CN112031808A (en) * | 2020-09-11 | 2020-12-04 | 广州大学 | Connecting device for fixing tunnel and shock insulation tunnel |
| CN112031808B (en) * | 2020-09-11 | 2022-03-22 | 广州大学 | Connecting device for fixing tunnel and shock insulation tunnel |
| CN112031815A (en) * | 2020-09-22 | 2020-12-04 | 广州大学 | Shock isolation device for connecting left tunnel and right tunnel |
| CN112031815B (en) * | 2020-09-22 | 2022-04-26 | 广州大学 | Shock isolation device for connecting left tunnel and right tunnel |
| CN112523777A (en) * | 2020-11-19 | 2021-03-19 | 中国电建集团华东勘测设计研究院有限公司 | Shield tunnel reinforcing structure and construction method |
| CN113309529A (en) * | 2021-06-04 | 2021-08-27 | 天津大学 | Subway tunnel deformation detects uses hidden prosthetic devices based on total powerstation |
| CN113309529B (en) * | 2021-06-04 | 2022-08-09 | 天津大学 | Subway tunnel deformation detects uses hidden prosthetic devices based on total powerstation |
| CN114086598A (en) * | 2021-12-03 | 2022-02-25 | 河北地质大学 | Multistage shock attenuation anti-seismic device of city utility tunnel |
| CN114086598B (en) * | 2021-12-03 | 2023-02-28 | 河北地质大学 | Multistage shock attenuation anti-seismic device of city utility tunnel |
| CN115977677A (en) * | 2023-01-10 | 2023-04-18 | 广州大学 | Double-layer tunnel shock insulation structure and construction method thereof |
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