CN219587577U - Anti-seismic device for shield tunnel structure - Google Patents
Anti-seismic device for shield tunnel structure Download PDFInfo
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- CN219587577U CN219587577U CN202320384364.9U CN202320384364U CN219587577U CN 219587577 U CN219587577 U CN 219587577U CN 202320384364 U CN202320384364 U CN 202320384364U CN 219587577 U CN219587577 U CN 219587577U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a shield tunnel structure anti-seismic device. The anti-seismic device comprises a tubular shield tunnel structure body and an anti-seismic assembly, wherein the shield tunnel structure body is formed by splicing arc-shaped duct pieces; the anti-seismic assembly comprises an anti-seismic block, an anti-seismic structure A, an anti-seismic structure B and a memory alloy steel bar; four anti-seismic blocks are arranged at four corners of the outer wall of the duct piece, and transverse grooves and longitudinal grooves are formed in the outer side faces of the four anti-seismic blocks and are not communicated; when the pipe piece is assembled in an annular mode, the memory alloy steel bars are inserted into the two connected transverse grooves; the anti-seismic structure A and the anti-seismic structure B are respectively arranged in the four longitudinal grooves, and when the duct pieces are assembled front and back, the anti-seismic structure A and the anti-seismic structure B are correspondingly combined. The anti-seismic device for the shield tunnel structure, which is designed by the utility model, can increase the anti-seismic performance of the concrete segment, ensure the anti-seismic support with enough buffer function between two adjacent segments, provide stable shaping support and improve the anti-seismic performance of the shield tunnel structure.
Description
Technical Field
The utility model belongs to the technical field of shield tunnels, and particularly relates to a shield tunnel structure anti-seismic device.
Background
The shield tunneling machine is a special engineering machine for tunneling, integrates light, machine, electricity, liquid, sensing and information technologies, has the functions of excavating and cutting soil body, conveying soil slag, assembling tunnel lining, measuring, guiding and correcting deviation and the like, relates to multi-discipline technologies such as geology, civil engineering, machinery, mechanics, hydraulic, electric, control, measurement and the like, is designed and manufactured in a 'body cutting' mode according to different geology, has extremely high reliability requirements, and is widely used for tunnel engineering such as subways, railways, highways, municipal administration, hydropower and the like.
The shield tunnel is a structure formed by connecting and splicing prefabricated arc-shaped duct pieces by bolts, the construction is carried out by a shield method, the shield method is a fully mechanized construction method in the construction of a hidden excavation method, shield machines are propelled in the ground, surrounding rocks around the shield shells and duct pieces are supported by the shield shells to prevent collapse in the tunnel, soil is excavated by a cutting device in front of an excavation face, the soil is carried out of the tunnel by an earth-discharging machine, the rear part of the tunnel is pressurized and jacked by a jack, and the prefabricated concrete duct pieces are spliced, so that the mechanized construction method of the tunnel structure is formed.
In recent years, as more and more shield tunnels are built, partial tunnels are even in high earthquake intensity areas with the intensity of more than 7 degrees, and numerical calculation finds that the common bolt connection cannot meet the safety and durability requirements of the shield tunnels under the high earthquake intensity working condition, and the earthquake resistance of the shield tunnel structure must be improved.
Disclosure of Invention
The utility model aims to provide a shield tunnel structure anti-seismic device which can increase the anti-seismic performance of concrete segments, ensure that two adjacent segments have anti-seismic support with enough buffer function, provide stable shaping support and improve the anti-seismic performance of a shield tunnel structure.
The shield tunnel structure anti-seismic device comprises a tubular shield tunnel structure body and an anti-seismic assembly, wherein the shield tunnel structure body is formed by splicing arc-shaped duct pieces; the anti-seismic assembly comprises an anti-seismic block, an anti-seismic structure A, an anti-seismic structure B and a memory alloy steel bar; four anti-seismic blocks are arranged at four corners of the outer wall of the duct piece, and transverse grooves and longitudinal grooves are formed in the outer side faces of the four anti-seismic blocks and are not communicated; when the pipe piece is assembled in an annular mode, the memory alloy steel bars are inserted into the two connected transverse grooves; the anti-seismic structure A and the anti-seismic structure B are respectively arranged in the four longitudinal grooves, and when the duct pieces are assembled front and back, the anti-seismic structure A and the anti-seismic structure B are correspondingly combined.
The anti-seismic structure A comprises a damping structure, a force transfer plate and a buffer spring which are sequentially connected; the anti-seismic structure B comprises a damping structure and a force transfer plate which are sequentially connected; the buffer spring is inserted into the longitudinal groove where the anti-seismic structure B is located, and is clamped between the force transmission plate of the anti-seismic structure A and the force transmission plate of the anti-seismic structure B.
The damping structure comprises a damping sleeve, a damping inner plate, a damping column and a damping outer plate; the damping inner plate and the damping outer plate are connected through a damping column; a damping groove is formed in the damping sleeve, damping liquid is poured into the damping groove, and the damping inner plate is clamped in the damping groove; the damping outer plate is connected with the force transmission plate, and the damping sleeve is welded at the inner bottom of the longitudinal groove.
Sliding grooves are formed in two sides of the longitudinal groove, sliding blocks are fixedly welded on two sides of the force transmission plate, and the sliding blocks slide along the sliding grooves.
The utility model has the technical effects and advantages that: according to the damping device, the two force transfer plates are extruded back and forth in the shaking process of the buffer spring, the two force transfer plates respectively drive the sliding blocks on two sides of the damping device to slide in the sliding grooves, the damping outer plate is extruded by the damping column, the damping inner plate moves in the damping groove to generate damping effect under the action of damping liquid, shaking is buffered, the buffer spring returns to a static balance state, vibration between the two longitudinal segments is buffered, and anti-vibration support with enough buffering effect between the two adjacent segments is ensured; synchronous deformation is carried out through the memory alloy steel bars, buffer support with a recovery function is provided for two adjacent duct pieces, and an anti-seismic function is transversely played, so that the anti-seismic performance of the shield tunnel structure is improved.
Drawings
Fig. 1 is a schematic perspective view of a shield tunnel structure anti-seismic device designed by the utility model.
Fig. 2 is a schematic perspective view of an earthquake-resistant module according to the present utility model.
Fig. 3 is a schematic perspective view of an earthquake-resistant structure a according to the present utility model.
Fig. 4 is a schematic perspective view of an earthquake-resistant structure B according to the present utility model.
Fig. 5 is a schematic perspective view of a damping structure according to the present utility model.
In the figure: 1. a shield tunnel structure body; 2. an anti-seismic assembly; 3. a segment; 4. a longitudinal slot; 5. a transverse slot; 201. an anti-seismic block; 202. an earthquake-resistant structure A; 203. a memory alloy steel strip; 2021. a buffer spring; 2022. a force transfer plate; 2023. a damping structure; 6. a damping sleeve; 7. a damping inner plate; 8. a damping column; 9. a damping outer plate; 10. a damping groove; 11. a sliding block.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
As shown in fig. 1-5, a shield tunnel structure anti-seismic device comprises a tubular shield tunnel structure body 1 and an anti-seismic assembly 2, wherein the shield tunnel structure body 1 is formed by splicing arc segments 3, and is characterized in that: the anti-seismic assembly 2 comprises an anti-seismic block 201, an anti-seismic structure A202, an anti-seismic structure B and a memory alloy steel bar 203; four anti-seismic blocks 201 are arranged at four corners of the outer wall of the duct piece 3, a transverse groove 5 and a longitudinal groove 4 are formed in the outer side face of each anti-seismic block 201, and the transverse groove 5 is not communicated with the longitudinal groove 4; when the pipe piece 3 is assembled in a ring shape, the memory alloy steel bars 203 are inserted into the two connected transverse grooves 5; the anti-seismic structure A202 and the anti-seismic structure B are respectively arranged in the four longitudinal grooves 4, and when the duct pieces 3 are assembled front and back, the anti-seismic structure A202 and the anti-seismic structure B are correspondingly combined.
The anti-seismic structure A202 comprises a damping structure, a force transfer plate and a buffer spring which are sequentially connected; the anti-seismic structure B comprises a damping structure and a force transfer plate which are sequentially connected; the buffer spring is inserted into the longitudinal groove where the anti-seismic structure B is located, and is clamped between the force transmission plate of the anti-seismic structure A and the force transmission plate of the anti-seismic structure B. Sliding grooves are formed in the two sides in the longitudinal groove 4, sliding blocks 11 are fixedly welded on the two sides of the force transmission plate, and the sliding blocks 11 slide along the sliding grooves.
The damping structure comprises a damping sleeve 6, a damping inner plate 7, a damping column 8 and a damping outer plate 9; the damping inner plate 7 and the damping outer plate 9 are connected through a damping column 8; a damping groove 10 is formed in the damping sleeve 6, damping liquid is poured into the damping groove 10, and the damping inner plate 7 is clamped in the damping groove 10; the damping outer plate 9 is connected with the force transfer plate, and the damping sleeve 6 is welded at the bottom in the longitudinal groove 4.
Claims (4)
1. The utility model provides a shield tunnel structure antidetonation device, includes tubular shield tunnel structure body (1) and antidetonation subassembly (2), and shield tunnel structure body (1) are assembled by arc section of jurisdiction (3), its characterized in that: the anti-seismic assembly (2) comprises an anti-seismic block (201), an anti-seismic structure A (202), an anti-seismic structure B and a memory alloy steel bar (203); four anti-seismic blocks (201) are arranged at four corners of the outer wall of the duct piece (3), transverse grooves (5) and longitudinal grooves (4) are formed in the outer side faces of the four anti-seismic blocks (201), and the transverse grooves (5) are not communicated with the longitudinal grooves (4); when the duct pieces (3) are assembled in a ring shape, the memory alloy steel bars (203) are inserted into the two connected transverse grooves (5); the anti-seismic structure A (202) and the anti-seismic structure B are respectively arranged in the four longitudinal grooves (4), and when the duct pieces (3) are assembled front and back, the anti-seismic structure A (202) and the anti-seismic structure B are correspondingly combined.
2. The shield tunnel structure seismic apparatus of claim 1, wherein: the anti-seismic structure A (202) comprises a damping structure, a force transfer plate and a buffer spring which are sequentially connected; the anti-seismic structure B comprises a damping structure and a force transfer plate which are sequentially connected; the buffer spring is inserted into the longitudinal groove where the anti-seismic structure B is located, and is clamped between the force transmission plate of the anti-seismic structure A and the force transmission plate of the anti-seismic structure B.
3. The shield tunnel structure seismic apparatus of claim 2, wherein: the damping structure comprises a damping sleeve (6), a damping inner plate (7), a damping column (8) and a damping outer plate (9); the damping inner plate (7) and the damping outer plate (9) are connected through a damping column (8); a damping groove (10) is formed in the damping sleeve (6), damping liquid is poured into the damping groove (10), and the damping inner plate (7) is clamped in the damping groove (10); the damping outer plate (9) is connected with the force transmission plate, and the damping sleeve (6) is welded at the inner bottom of the longitudinal groove (4).
4. The shield tunnel structure seismic apparatus of claim 2, wherein: sliding grooves are formed in the two inner sides of the longitudinal groove (4), sliding blocks (11) are fixedly welded on the two sides of the force transmission plate, and the sliding blocks (11) slide along the sliding grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320384364.9U CN219587577U (en) | 2023-03-04 | 2023-03-04 | Anti-seismic device for shield tunnel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320384364.9U CN219587577U (en) | 2023-03-04 | 2023-03-04 | Anti-seismic device for shield tunnel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219587577U true CN219587577U (en) | 2023-08-25 |
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ID=87697045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320384364.9U Active CN219587577U (en) | 2023-03-04 | 2023-03-04 | Anti-seismic device for shield tunnel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219587577U (en) |
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2023
- 2023-03-04 CN CN202320384364.9U patent/CN219587577U/en active Active
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