CN219654710U - Anti-seismic waterproof flexible structure for shield tunnel segment joint - Google Patents
Anti-seismic waterproof flexible structure for shield tunnel segment joint Download PDFInfo
- Publication number
- CN219654710U CN219654710U CN202321398303.4U CN202321398303U CN219654710U CN 219654710 U CN219654710 U CN 219654710U CN 202321398303 U CN202321398303 U CN 202321398303U CN 219654710 U CN219654710 U CN 219654710U
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- rubber
- shield
- bolt
- shape memory
- memory alloy
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- 229920001971 elastomer Polymers 0.000 claims abstract description 82
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 67
- 239000010959 steel Substances 0.000 claims abstract description 67
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 31
- 239000002131 composite material Substances 0.000 claims abstract description 29
- 230000035939 shock Effects 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 12
- 229920002943 EPDM rubber Polymers 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 5
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910018131 Al-Mn Inorganic materials 0.000 description 2
- 229910018461 Al—Mn Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
-
- 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
Abstract
The utility model provides an anti-seismic waterproof flexible structure for a shield tunnel segment joint, which comprises rubber contact pads and an inter-ring flexible joint, wherein the rubber contact pads and the inter-ring flexible joint are arranged on the side walls of adjacent two ring shield segments facing to the circumferential seam, the inter-ring flexible joint comprises rubber composite steel bolt connectors and shape memory alloy bolt connectors which are arranged at the circumferential seam of the adjacent two ring shield segments at intervals, the rubber composite steel bolt connectors comprise rubber composite steel bolts and steel bolt sleeves matched with the rubber composite steel bolts, the rubber composite steel bolts comprise high-performance bolts and rubber layers wrapped on the peripheries of the high-performance bolts, and the shape memory alloy bolt connectors comprise shape memory alloy bolts and bolt sleeves matched with the shape memory alloy bolts. By arranging the full-ring rubber contact pad at the circumferential seam of the shield segment, on one hand, the waterproof capability under the extreme dislocation and opening working conditions is improved, and on the other hand, the energy absorption and shock absorption effects are exerted in the longitudinal direction of the segment.
Description
Technical Field
The utility model relates to the field of anti-seismic measures of a shield tunnel under a high water pressure condition in traffic construction or civil engineering, in particular to an anti-seismic waterproof flexible structure for a segment joint of a shield tunnel.
Background
The anti-shock-absorbing measures of the shield tunnel comprise methods of reinforcing structural design, improving the grade of bolts, improving surrounding rock, thickening force transmission gaskets among joints, arranging bolt rubber gaskets and the like, however, the traditional shield shock-absorbing measures are difficult to meet the waterproof requirement under the water-rich background of the sea area, the waterproof and surging-preventing safety of the tunnel cannot be ensured when shock occurs, and severe water leakage can directly threaten the driving safety. And earthquake resistance and water resistance are required to be achieved in the sea water-rich environment with fault distribution, so that the development of an earthquake-resistant and water-resistant flexible structure for the segment joints of the shield tunnel is a problem to be solved urgently.
Disclosure of Invention
In view of the above, the utility model aims to provide an anti-seismic waterproof flexible structure for a shield tunnel segment joint so as to solve the problem that both anti-seismic and waterproof are needed in a water-rich environment of a sea area with fault distribution.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a waterproof flexible structure of antidetonation for shield tunnel section of jurisdiction seam, includes rubber contact pad and the interannular flexible joint that sets up on the lateral wall that adjacent two rings shield section of jurisdiction face the circumferential weld, the interannular flexible joint includes that the interval arrangement is in the rubber composite steel bolted connection spare and the shape memory alloy bolted connection spare of adjacent two rings shield section of jurisdiction circumferential weld department, rubber composite steel bolted connection spare includes rubber composite steel bolt and the steel bolt sleeve that matches with rubber composite steel bolt, rubber composite steel bolt includes high performance bolt and wraps up the rubber layer in high performance bolt periphery, shape memory alloy bolted connection spare includes shape memory alloy bolt and the bolt sleeve that matches with shape memory alloy bolt.
Furthermore, an omega-shaped water stop is arranged in the arch wall range of the inner side of the pipe piece at the circumferential seam of the adjacent shield pipe piece, and the omega-shaped water stop is made of rubber materials.
Furthermore, embedded steel plates are arranged on two sides of the omega-shaped water stop on adjacent shield segments through anchor steel bars, steel edges are arranged on the embedded steel plates, and two ends of the omega-shaped water stop are fixed on the steel edges through clamp nails.
Further, a first horn mouth is arranged on a steel bolt sleeve matched with the rubber composite steel bolt, and an ethylene propylene diene monomer rubber deformation shock insulation layer with the thickness of 5mm is arranged in the first horn mouth.
Further, a second bell mouth is arranged on a bolt sleeve matched with the shape memory alloy bolt, and an ethylene propylene diene monomer rubber deformation shock insulation layer with the thickness of 5mm is arranged in the second bell mouth.
Further, the rubber layer is formed by arranging an ethylene propylene diene monomer rubber deformation shock insulation layer and a water-swelling rubber water stop layer.
Furthermore, the steel edges are fixed on the embedded steel plates in a full seam welding mode.
Further, three grooves are formed in the side wall, facing the circular seam, of each two adjacent ring shield segments, and are respectively a sealing gasket groove close to the outer side of the shield segment, a sealing gasket groove close to the inner side of the shield segment and a caulking groove, three protrusions are arranged on the rubber contact pad at positions opposite to the three grooves, the three protrusions are matched with the three grooves, and openings are formed in the three protrusions of the rubber contact pad.
Further, the shield segment is composed of a sealing block, an adjacent block and a standard block, and after the sealing block, the adjacent block and the standard block are respectively stuck with rubber contact pads with corresponding shapes, the rubber contact pads of the blocks are combined into a rubber contact pad which is full of a ring along with the assembly of the shield segment.
Furthermore, the earthquake-resistant waterproof flexible structure is arranged at intervals of the decade shield segment, so that a segmental earthquake-resistant breaking-resistant system is formed.
Compared with the prior art, the anti-seismic waterproof flexible structure for the shield tunnel segment joint has the following advantages:
(1) By arranging the full-ring rubber contact pad at the circumferential seam of the shield segment, on one hand, the waterproof capability under the extreme dislocation and opening working conditions is improved, and on the other hand, the energy absorption and shock absorption effects are exerted in the longitudinal direction of the segment.
(2) Three convex flanges are arranged on the rubber contact pad, and firstly, the rubber contact pad has a positioning function and prevents the contact pad from extrusion and falling off; secondly, the water seepage channel is blocked, and the water stopping effect is enhanced; and thirdly, the sealing gasket groove is matched with the existing sealing gasket groove and caulking groove of the shield segment, and a mould for pouring the segment is not required to be additionally modified for setting the structure.
(3) The omega-shaped water stop is arranged on the inner side of the shield segment, when the shield segment is severely staggered and opened, and the waterproof capacity of the rubber contact pad is reduced, the omega-shaped water stop can play a role in preventing water burst and mud burst, and the embedded steel plate is firmly connected with the shield segment through the anchoring steel bars, so that the anti-falling safety coefficient is improved.
(4) The shape memory alloy bolt has strong deformability, is matched with the full-ring rubber contact pad, and can adapt to larger shield segment dislocation and opening displacement through self-coordinated deformation; the adopted Cu-Al-Mn shape memory alloy has great deformability and high damage resistance; standard metal processing equipment and technology can be used, and the processing and the forming are easy; the leftover materials can be recycled, so that the resources are saved and the environment is protected.
(5) The steel core inside the rubber composite steel bolt ensures the basic connection strength, and the surface rubber allows small-range dislocation deformation, so that part of energy can be absorbed when an earthquake occurs; if the fault displacement is large, the rubber composite steel bolt reaches the limit strain and is sheared, the shape memory alloy bolt can still be connected with the pipe piece, and serious phenomena of falling blocks and collapsing between circular seams are avoided.
(6) A segmented anti-seismic and anti-breaking system divided by shield segments with flexible structures adapts to stratum deformation through flexible structures and flexible joints among segments on one hand, and avoids integral damage and large-scale instability of tunnels; on one hand, the anti-seismic and fracture-resistant bearing capacity and stability of each segment are improved through the structure of the segment and the joint connection of the shield segment.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic structural view of a gasket groove near the outside of a shield segment, a gasket groove near the inside of a shield segment, and a caulking groove in the present utility model; wherein 2-a is a structure schematic diagram of the shield segment before extrusion, and 2-b is a structure schematic diagram of the shield segment after extrusion;
FIG. 3 is a schematic view of the structure of an omega-shaped water stop belt according to the present utility model;
FIG. 4 is a schematic view of a rubber composite steel bolted joint according to the present utility model;
fig. 5 is a schematic structural view of a shape memory alloy bolted joint according to the present utility model.
Reference numerals illustrate:
1. shield segments; 2. a rubber contact pad; 3. hole sites of rubber composite steel bolts; 4. shape memory alloy bolt hole sites; 5. opening holes; 6. the outside of the duct piece; 7. the inner side of the duct piece; 8. a first gasket groove; 9. a second gasket groove; 10. a caulking groove; 11. anchoring the steel bars; 12. omega type water stop; 13. a steel edge; 14. embedding a steel plate; 15. a bolt; 16. a bolt sleeve; 17. rubber composite steel bolts; 18. ethylene propylene diene monomer rubber deformation shock insulation layer; 19. a water-swellable rubber water-stop layer; 20. a steel bolt sleeve matched with the rubber composite steel bolt; 21. a first flare; 22. a shape memory alloy bolt; 23. a bolt sleeve matched with the shape memory alloy bolt; 24. and a second flare.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
The utility model will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1, the anti-seismic waterproof flexible structure for the shield tunnel segment joint comprises rubber contact pads 2 arranged on the side walls of adjacent two ring shield segments facing the circumferential seam and an inter-ring flexible joint, wherein the inter-ring flexible joint comprises rubber composite steel bolt connectors and shape memory alloy bolt connectors which are arranged at the circumferential seam of the adjacent two ring shield segments at intervals. And the adjacent two ring shield segments are provided with a rubber composite steel bolt hole site 3 for installing a rubber composite steel bolt connector and a shape memory alloy bolt hole site 4 for installing a shape memory alloy bolt connector. As shown in fig. 4, the rubber composite steel bolt connecting member comprises a rubber composite steel bolt 17 and a steel bolt sleeve 20 matched with the rubber composite steel bolt, wherein the rubber composite steel bolt 17 comprises a high-performance bolt and a rubber layer wrapped on the periphery of the high-performance bolt. The high performance bolts are prior art products and are not described in detail herein. As shown in fig. 5, the shape memory alloy bolted connection comprises a shape memory alloy bolt 22 and a bolt sleeve 23 mated with the shape memory alloy bolt.
The rubber contact pads 2 are required to be paved and fixed on the side wall of the shield segment facing the circular seam in advance, the shield segment consists of a sealing block, an adjacent block and a standard block, and after the sealing block, the adjacent block and the standard block are respectively stuck with the rubber contact pads with corresponding shapes, the rubber contact pads of the blocks are combined into the rubber contact pad which is fully distributed with the assembly of the shield segment.
As shown in fig. 2, rubber contact pads 2 are required to be arranged on the side walls of the shield segments on the left and right sides of the circumferential seam, and the rubber contact pads 2 on the two sides are tightly pressed under the action of pushing force of the shield, and are kept in an extrusion state under the fastening action of the flexible joint between the rings. The rubber contact pad 2 is 15mm thick in a natural state and 10mm thick in a pressed state. Three grooves are formed in the side face of the shield segment: the rubber contact pad 2 is provided with three protrusions which are matched with the three grooves respectively, and the first sealing pad groove 8 is close to the outside 6 of the duct piece, the second sealing pad groove 9 is close to the inside 7 of the duct piece and the caulking groove 10. The rubber contact pad 2 is made of ethylene propylene diene monomer rubber, an opening 5 is designed at the bulge, and the opening ratio is calculated and evaluated according to shield pushing counter force and bolt solidification force.
As shown in fig. 3, an omega-shaped water stop 12 is arranged in the arch wall range of the inner side 7 of the pipe piece at the circumferential seam of the adjacent shield pipe piece, and the omega-shaped water stop 12 is made of rubber materials. The two ends of the rubber are fixed on the steel edge 13 through clamp nails. The steel edge 13 is fixed on the embedded steel plate 14 in a full seam welding mode, and the embedded steel plate 14 is firmly connected with the shield segment 1 through the anchoring steel bars 11. The bolts 15 and the bolt sleeves 16 beside the omega-shaped water stop 12 can be rubber composite steel bolts 17 and steel bolt sleeves 20 matched with the rubber composite steel bolts, and can also be shape memory alloy bolts 22 and bolt sleeves 23 matched with the shape memory alloy bolts.
As shown in fig. 4, the rubber composite steel bolt is formed by attaching a layer of rubber on the periphery of an original high-performance bolt, wherein the rubber layer is formed by two kinds of rubber in a spaced arrangement mode: each section of ethylene propylene diene monomer rubber deformation shock insulation layer 18 with the length of 10cm, and each section of water-swelling rubber water-stop layer 19 with the length of 5 cm. The steel bolt sleeve 20 matched with the rubber composite steel bolt is provided with a first horn mouth 21, and an ethylene propylene diene monomer rubber deformation shock insulation layer with the thickness of 5mm is arranged in the first horn mouth 21.
As shown in fig. 5, the shape memory alloy bolt is made of a Cu-Al-Mn alloy, a second bell mouth 24 is provided on a bolt sleeve 23 matched with the shape memory alloy bolt, and an ethylene propylene diene monomer rubber deformation shock insulation layer with a thickness of 5mm is provided in the second bell mouth 24.
According to the earthquake and fracture property calculation analysis, the movable fault influence section is provided with an earthquake-resistant waterproof flexible structure every 20m10 rings, and the 20m10 ring sections perform shield segment structure and joint connection earthquake-resistant reinforcement to form a segmented earthquake-resistant breaking-resistant system.
The anti-seismic waterproof flexible structure is used for the shield tunnel segment joints, and the anti-seismic waterproof flexible structure is arranged at the shield segment joints at intervals of a certain number of rings, so that shield segment segments can adapt to stratum deformation of fault distribution tunnel sites, the integral damage and large-scale instability of tunnels are avoided, meanwhile, good waterproof performance is maintained, and the occurrence of submarine shield tunnel leakage and water gushing accidents can be effectively avoided.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
1. A waterproof flexible structure of antidetonation for shield tunnel section of jurisdiction seam, its characterized in that: including setting up the flexible joint between rubber contact pad and the ring on the lateral wall of adjacent two ring shield segment towards the circumferential weld, flexible joint includes that the interval arrangement is in the compound steel bolted connection spare of adjacent two ring shield segment circumferential weld department and shape memory alloy bolted connection spare, compound steel bolted connection spare of rubber includes compound steel bolt and the steel bolt sleeve that matches with compound steel bolt of rubber, compound steel bolt of rubber includes high performance bolt and the rubber layer of parcel in high performance bolt periphery, shape memory alloy bolted connection spare includes shape memory alloy bolt and the bolt sleeve that matches with shape memory alloy bolt.
2. The anti-seismic waterproof flexible structure for a shield tunnel segment joint according to claim 1, wherein: an omega-shaped water stop is arranged in the arch wall range of the inner side of the pipe piece at the circumferential seam of the adjacent shield pipe piece, and the omega-shaped water stop is made of rubber materials.
3. The anti-seismic waterproof flexible structure for a shield tunnel segment joint according to claim 2, wherein: the two sides of the omega-shaped water stop strip on the adjacent shield segments are provided with embedded steel plates through anchor bars, steel edges are arranged on the embedded steel plates, and the two ends of the omega-shaped water stop strip are fixed on the steel edges through fixture nails.
4. A shock resistant waterproof flexible structure for a shield tunnel segment joint according to any one of claims 1 to 3, wherein: the rubber layer is formed by arranging an ethylene propylene diene monomer rubber deformation shock insulation layer and a water-swelling rubber water stop layer.
5. The anti-seismic waterproof flexible structure for a shield tunnel segment joint according to claim 4, wherein: the bolt sleeve matched with the shape memory alloy bolt is provided with a second bell mouth, and an ethylene propylene diene monomer rubber deformation shock insulation layer is arranged in the second bell mouth.
6. The anti-seismic waterproof flexible structure for a shield tunnel segment joint according to claim 5, wherein: the steel bolt sleeve matched with the rubber composite steel bolt is provided with a first horn mouth, and an ethylene propylene diene monomer rubber deformation shock insulation layer is arranged in the first horn mouth.
7. A flexible, anti-seismic and waterproof structure for a shield tunnel segment joint according to claim 3, wherein: the steel edges are fixed on the embedded steel plates in a full seam welding mode.
8. A flexible, anti-seismic and waterproof structure for a shield tunnel segment joint according to claim 1 or 3, characterized in that: three grooves are formed in the side wall, facing the circular seam, of each two adjacent ring shield segments, and are respectively a sealing gasket groove close to the outer side of the shield segment, a sealing gasket groove close to the inner side of the shield segment and a caulking groove, three protrusions are arranged on the rubber contact pad at positions opposite to the three grooves, the three protrusions are matched with the three grooves, and openings are formed in the three protrusions of the rubber contact pad.
9. The anti-seismic waterproof flexible structure for a shield tunnel segment joint according to claim 1, wherein: the shield segment consists of a jacking block, an adjacent block and a standard block, wherein after the jacking block, the adjacent block and the standard block are respectively stuck with rubber contact pads with corresponding shapes, the rubber contact pads of the blocks are combined into a rubber contact pad which is full of rings along with the assembly of the shield segment.
10. The anti-seismic waterproof flexible structure for a shield tunnel segment joint according to claim 1, wherein: the earthquake-resistant waterproof flexible structure is arranged at intervals of the decade shield segments to form a segmental earthquake-resistant and breakage-resistant system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321398303.4U CN219654710U (en) | 2023-06-02 | 2023-06-02 | Anti-seismic waterproof flexible structure for shield tunnel segment joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321398303.4U CN219654710U (en) | 2023-06-02 | 2023-06-02 | Anti-seismic waterproof flexible structure for shield tunnel segment joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219654710U true CN219654710U (en) | 2023-09-08 |
Family
ID=87880115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321398303.4U Active CN219654710U (en) | 2023-06-02 | 2023-06-02 | Anti-seismic waterproof flexible structure for shield tunnel segment joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219654710U (en) |
-
2023
- 2023-06-02 CN CN202321398303.4U patent/CN219654710U/en active Active
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