CN211174115U - Slurry shield tunnel door pressure-bearing sealing device - Google Patents
Slurry shield tunnel door pressure-bearing sealing device Download PDFInfo
- Publication number
- CN211174115U CN211174115U CN201922257215.2U CN201922257215U CN211174115U CN 211174115 U CN211174115 U CN 211174115U CN 201922257215 U CN201922257215 U CN 201922257215U CN 211174115 U CN211174115 U CN 211174115U
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- Prior art keywords
- portal
- ring
- tunnel portal
- shield
- sealing ring
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- 238000007789 sealing Methods 0.000 title claims abstract description 128
- 239000002002 slurry Substances 0.000 title claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 84
- 239000010959 steel Substances 0.000 claims abstract description 84
- 229920001971 elastomer Polymers 0.000 claims abstract description 42
- 239000004744 fabric Substances 0.000 claims abstract description 32
- 239000004519 grease Substances 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims 1
- 230000007306 turnover Effects 0.000 description 8
- 235000006506 Brasenia schreberi Nutrition 0.000 description 7
- 244000267222 Brasenia schreberi Species 0.000 description 7
- 230000005641 tunneling Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model provides a pressure-bearing sealing device for a tunnel portal of a slurry shield, which comprises a tunnel portal external steel ring, a second shield tail brush sealing ring, a rubber curtain cloth sealing ring and a flap sealing ring; the external steel ring of the portal is an annular structure matched with the portal in shape and can be fixedly arranged on the pre-buried steel ring of the portal along the edge of the portal; the first shield tail brush sealing ring is formed by sequentially overlapping and fixing a plurality of lengthened shield tail brushes along the inner ring of the steel ring externally connected with the tunnel portal and a first preset distance away from the tunnel portal through the brush tails; the second shield tail brush sealing ring is formed by sequentially overlapping and fixing a plurality of lengthened shield tail brushes along the inner ring of the externally connected steel ring of the tunnel portal and a second preset distance from the tunnel portal through the brush tails; the rubber cord fabric sealing ring is formed by fixing an annular rubber cord fabric on the end face of the steel ring externally connected with the tunnel portal, which is far away from the tunnel portal; the flap seal ring is formed by connecting and installing a plurality of fan-shaped flaps in sequence along the outer side of the annular rubber curtain cloth. Better sealing effect can be achieved.
Description
Technical Field
The utility model relates to a shield constructs construction equipment technical field, concretely relates to muddy water shield entrance to a cave pressure-bearing sealing device.
Background
With the continuous development of the shield construction of urban subways, when a slurry balance shield is constructed in a liquefiable stratum such as sandy silt saturated with water, although the tunnel portal sealing device at the starting end has mature technology, the slurry balance shield still has some disadvantages.
SUMMERY OF THE UTILITY MODEL
The utility model provides a slurry shield portal pressure-bearing sealing device sets up the multilayer sealed feasible slurry shield portal pressure-bearing sealing device can reach better sealed effect.
The utility model provides a slurry shield portal pressure-bearing sealing device, include: the tunnel door is externally connected with a steel ring, a first shield tail brush sealing ring, a second shield tail brush sealing ring, a rubber cord fabric sealing ring and a turning plate sealing ring; the portal external steel ring is an annular structure matched with the portal in shape and can be fixedly arranged on the portal embedded steel ring along the portal edge; the first shield tail brush sealing ring is formed by sequentially overlapping and fixing a plurality of lengthened shield tail brushes along the inner ring of the steel ring externally connected with the tunnel portal and at a first preset distance from the tunnel portal through the brush tails; the second shield tail brush sealing ring is formed by sequentially overlapping and fixing a plurality of lengthened shield tail brushes along the inner ring of the externally-connected steel ring of the tunnel portal and at a second preset distance from the tunnel portal through the brush tails; the rubber cord sealing ring is formed by fixing an annular rubber cord on the end face of the steel ring externally connected with the tunnel portal, which is far away from the tunnel portal; the flap seal ring is formed by connecting and installing a plurality of fan-shaped flaps in sequence along the outer side of the annular rubber curtain cloth.
Preferably, the externally-connected steel ring of the tunnel portal is formed by assembling and welding four arc-shaped steel plates.
Preferably, the seam positions of the four arc-shaped steel plates are respectively fixed by using arc-shaped connecting plates and bolts.
Preferably, annular plates are respectively arranged on the fixed end faces of the portal external steel ring and the portal embedded steel ring and on the end faces far away from the portal, and the portal external steel ring is fixed with the portal embedded steel ring, the rubber cord sealing ring and the turnover plate sealing ring through the annular plates.
Preferably, the first predetermined distance is less than the second predetermined distance.
Preferably, the lengthened shield tail brush is welded on the inner wall of the steel ring externally connected with the tunnel portal by CO2 shielded welding.
Preferably, a plurality of grease injection ports are drilled in the radial direction along the outer wall of the steel ring externally connected with the tunnel portal.
Preferably, the plurality of grease injection openings are drilled respectively between the rubber cord sealing ring and the second tunnel shield tail brush sealing ring and between the second tunnel shield tail brush sealing ring and the first tunnel shield tail brush sealing ring.
Preferably, a galvanized pipe and ball valve assembly is mounted at each of said grease injection ports.
Preferably, the annular rubber curtain cloth is installed on the end face of the installed steel ring externally connected with the tunnel portal in the following way: and the outer edge of the annular rubber curtain cloth is pressed by an arc-shaped plate from the lower part to the upper part on the end surface of the steel ring externally connected with the tunnel door and is installed by using a bolt fixing installation mode.
The utility model provides a slurry shield portal pressure-bearing sealing device, for external pressure-bearing sealing device, among the slurry shield portal pressure-bearing sealing device the external steel ring of portal suits with the shape of tunnel portal, will the external steel ring fixed mounting of portal is in on the pre-buried steel ring of tunnel portal outward flange the external steel ring inner circle of portal is installed in proper order first way shield tail brush sealing ring the second way shield tail brush sealing ring rubber curtain cloth sealing ring with turn over the board sealing ring, pass through at the shield machine the slurry shield portal pressure-bearing sealing device gets into the portal, and each sealing ring all moves towards the shield machine direction of travel is turned over in, and pastes on shield machine's shield shell and the section of jurisdiction, it makes to set up multilayer seal the slurry shield portal pressure-bearing sealing device can reach better sealed effect.
Other features and advantages of embodiments of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention, but do not constitute a limitation of the embodiments of the invention. In the drawings:
FIG. 1 is a longitudinal sectional view of a partial structure of a slurry shield tunnel door pressure-bearing sealing device according to an embodiment of the present invention;
FIG. 2 is a front view of a slurry shield tunnel door pressure-bearing sealing device according to an embodiment of the present invention;
fig. 3 is a structure diagram of an external steel ring of a tunnel portal in a slurry shield tunnel portal pressure-bearing sealing device according to an embodiment of the present invention.
Description of the reference numerals
1-portal external steel ring 2-lengthened shield tail brush
3 annular rubber cord fabric 4 sector turning plate
6 grease injection ports of pre-buried steel ring of 5 holes door
7 galvanized pipe and 8 annular plates of ball valve subassembly
Detailed Description
The following describes in detail embodiments of the present invention with reference to the accompanying drawings. It is to be understood that the description herein is only intended to illustrate and explain embodiments of the present invention, and is not intended to limit embodiments of the present invention.
The technical solution in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1-3, the utility model provides a muddy water shield entrance to a cave pressure-bearing sealing device, include: the tunnel portal is externally connected with a steel ring 1, a first shield tail brush sealing ring, a second shield tail brush sealing ring, a rubber cord fabric sealing ring and a turning plate sealing ring; the portal external steel ring 1 is an annular structure matched with the portal in shape and can be fixedly arranged on the portal embedded steel ring 5 along the portal edge; the first shield tail brush sealing ring is formed by sequentially overlapping and fixing a plurality of lengthened shield tail brushes 2 along the inner ring of the portal external steel ring 1 and a first preset distance from the portal through brush tails; the second shield tail brush sealing ring is formed by sequentially overlapping and fixing a plurality of lengthened shield tail brushes 2 along the inner ring of the portal external steel ring 1 and a second preset distance from the portal through brush tails; the rubber cord sealing ring is formed by fixing an annular rubber cord 3 on the end face, far away from the tunnel portal, of the steel ring 1 externally connected with the tunnel portal; the flap sealing ring is formed by connecting and installing a plurality of fan-shaped flaps 4 along the outer side of the annular rubber curtain cloth 3 in sequence.
The utility model provides a slurry shield portal pressure-bearing sealing device, for external pressure-bearing sealing device, among the slurry shield portal pressure-bearing sealing device the external steel ring of portal 1 suits with the shape of tunnel portal, will the external steel ring of portal 1 fixed mounting is in on the pre-buried steel ring of tunnel portal outward flange the external steel ring of portal 1 inner circle is installed in proper order first way shield tail brush sealing ring the second way shield tail brush sealing ring rubber curtain cloth sealing ring with turn over the board sealing ring, pass through at the shield tunneling machine slurry shield portal pressure-bearing sealing device gets into the portal, and each sealing ring all moves towards shield tunneling machine turns over in the advancing direction, and pastes on shield tunneling machine shield shell and the section of jurisdiction, set up multilayer seal and make slurry shield portal pressure-bearing sealing device can reach better sealed effect.
According to the technical scheme of the utility model, the utility model provides a muddy water shield entrance to a cave pressure-bearing sealing device, include: the tunnel portal is externally connected with a steel ring 1, a first shield tail brush sealing ring, a second shield tail brush sealing ring, a rubber cord fabric sealing ring and a turning plate sealing ring; the external steel ring of portal 1 be with the annular structure that portal shape suited can along portal edge fixed mounting adopts multiple seal structure to combine together on the pre-buried steel ring of portal 5 to reach better sealed effect.
In order to guarantee the external steel ring of portal 1 be with portal adapted circular, according to the utility model discloses an embodiment, the external steel ring of portal 1 is assembled the welding by four arc steel sheets and is constituteed, preferably, the seam position of four arc steel sheets uses arc connecting plate and bolt fastening respectively, in order to guarantee the fastness and the stability that the external steel ring of portal 1 each part is connected.
According to the utility model discloses an embodiment the external steel ring of portal 1 with on the fixed terminal surface of the pre-buried steel ring of portal 5 and keep away from set up annular slab 8 on the terminal surface of portal respectively, the external steel ring of portal 1 passes through annular slab 8 with the pre-buried steel ring of portal 5 the rubber cord fabric sealing ring with it is fixed to turn over the board sealing ring.
According to an embodiment of the present invention, preferably, the inner diameter of the annular plate 8 is equal to the outer diameter of the steel ring 1, two the annular plate 8 is welded along the radial direction at two edge positions of the steel ring 1.
According to the technical scheme of the utility model, the first shield tail brush sealing ring is formed by a plurality of lengthened shield tail brushes 2 which are sequentially overlapped and fixed along the inner ring of the steel ring 1 externally connected with the tunnel portal and at a first preset distance from the tunnel portal through the brush tails; the second shield tail brush sealing ring is formed by sequentially overlapping and fixing a plurality of lengthened shield tail brushes 2 along the inner ring of the portal external steel ring 1 and a second preset distance from the portal through brush tails; the sealing effect is further enhanced by the two sealing rings of the shield tail brush.
And after the first shield tail brush sealing ring and the second shield tail brush sealing ring are installed, the tail brushes of the lengthened shield tail brushes 2 are pulled apart, and WR90 grease is applied, so that each layer of tail brushes can be fully filled by grease plug, and a better sealing effect is achieved.
According to the utility model discloses an embodiment, a plurality of installation order of extension shield tail brush 2 are overlap joint installation in proper order, and the last 1 extension shield tail brush 2 that seal the cyclization need be amputated the tail brush according to the size when the installation, ensure to want to have sufficient overlap joint length between the tail brush of two extension shield tail brushes 2 that connect.
According to the utility model discloses an embodiment, preferably, first predetermined distance is less than second predetermined distance, first shield tail brush sealing ring is closer to the portal will the installation of the external steel ring of portal 1 is accomplished the back, at first the inboard welding of the external steel ring of portal 1 first shield tail brush sealing ring, the welding after accomplishing the second way shield tail brush sealing ring.
According to the utility model discloses an embodiment, preferably, extension shield tail brush 2 adopts CO2 shielded welding to weld on the inner wall of the external steel ring of portal 1, convenient operation, fixed effectual.
According to the technical scheme of the utility model, rubber curtain cloth sealing ring is in by annular rubber curtain cloth 3 the external steel ring 1 in portal is kept away from the fixed formation of terminal surface in portal, shield the machine to when the portal impels, rubber curtain cloth to shield the machine advancing direction enstrophe, the marginal overlap joint of rubber curtain cloth is in shield the shield shell of machine, play sealed effect.
According to the utility model discloses an embodiment, along the radial brill of the outer wall of the external steel ring of portal 1 is equipped with a plurality of grease injection openings 6. Preferably, the plurality of grease injection openings 6 are drilled respectively between the rubber cord sealing ring and the second tunnel shield tail brush sealing ring and between the second tunnel shield tail brush sealing ring and the first tunnel shield tail brush sealing ring.
At the shield structure machine to when the portal of a cave impels, rubber curtain cloth first shield tail brush sealing ring with the second says that shield tail brush sealing ring all to shield structure machine advancing direction enstrophe, and the overlap joint is in on the shield shell of shield structure machine, rubber curtain cloth sealing ring with the second says and can form first sealed cavity between the shield tail brush sealing ring, first shield tail brush sealing ring with the second says and can form the sealed cavity of second between the shield tail brush sealing ring, a plurality of grease injection mouths 6 can respectively to first sealed cavity with annotate shield tail grease in the sealed cavity of second to reach better sealed effect.
According to an embodiment of the utility model, preferably, every grease injection mouth installs galvanized pipe and ball valve subassembly 7, is convenient for carry out the grease injection operation and carries out the shutoff after the operation.
According to the utility model discloses an embodiment, preferably, annular rubber curtain cloth 3 is accomplished in the installation is accomplished on the terminal surface of the external steel ring of portal 1 through following mode installation: the outer edge of the annular rubber curtain cloth 3 is pressed by an arc-shaped plate from the lower part to the upper part on the end face of the steel ring 1 externally connected with the tunnel door and is installed in a bolt fixing installation mode, and the installation is firm, so that the annular rubber curtain cloth 3 achieves the expected sealing effect.
Install at last the board sealing ring turns over, according to the utility model discloses a technical scheme, turn over the board sealing ring by a plurality of fan-shaped board 4 along the installation that meets in proper order forms in annular rubber curtain cloth 3's the outside, shield the machine to when the portal advances, turn over board sealing ring to shield the machine advancing direction enstrophe, turn over the marginal overlap joint of board sealing ring and be in on the shield shell of shield machine, can make rather than adjacent as the rigid support annular rubber curtain cloth 3 can hug closely on the shield shell of shield machine to reach better sealed effect.
The utility model aims at providing a muddy water shield portal pressure-bearing sealing device, for external pressure-bearing sealing device, among the muddy water shield portal pressure-bearing sealing device the external steel ring of portal 1 suits with the shape of tunnel portal, will the external steel ring of portal 1 fixed mounting is in on the pre-buried steel ring of tunnel portal outward flange the external steel ring of portal 1 inner circle is installed in proper order first way shield tail brush sealing ring the second way shield tail brush sealing ring rubber curtain cloth sealing ring with turn over the board sealing ring, pass through at the shield machine muddy water shield portal pressure-bearing sealing device gets into the portal, and each sealing ring all moves towards shield machine direction of travel is turned over to paste on the shield machine shield shell, set up multilayer seal and make muddy water shield portal pressure-bearing sealing device can reach better sealed effect.
The above describes in detail optional implementation manners of embodiments of the present invention with reference to the accompanying drawings, however, the embodiments of the present invention are not limited to the details in the above implementation manners, and in the technical concept scope of the embodiments of the present invention, it is possible to perform various simple modifications on the technical solutions of the embodiments of the present invention, and these simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not separately describe various possible combinations.
In addition, various different implementation manners of the embodiments of the present invention can be combined arbitrarily, and as long as it does not violate the idea of the embodiments of the present invention, it should be considered as the disclosure of the embodiments of the present invention.
Claims (10)
1. The utility model provides a slurry shield portal pressure-bearing sealing device which characterized in that, this slurry shield portal pressure-bearing sealing device includes: the tunnel portal is externally connected with a steel ring (1), a first shield tail brush sealing ring, a second shield tail brush sealing ring, a rubber cord fabric sealing ring and a turning plate sealing ring;
the tunnel portal external steel ring (1) is of an annular structure matched with the tunnel portal in shape and can be fixedly arranged on the tunnel portal embedded steel ring (5) along the edge of the tunnel portal;
the first shield tail brush sealing ring is formed by sequentially overlapping and fixing a plurality of lengthened shield tail brushes (2) along the inner ring of the portal external steel ring (1) and a first preset distance away from the portal through brush tails;
the second shield tail brush sealing ring is formed by sequentially overlapping and fixing a plurality of lengthened shield tail brushes (2) along the inner ring of the portal external steel ring (1) and a second preset distance from the portal through brush tails;
the rubber cord sealing ring is formed by fixing an annular rubber cord (3) on the end face, far away from the tunnel portal, of the steel ring (1) externally connected with the tunnel portal;
the flap sealing ring is formed by connecting and installing a plurality of fan-shaped flaps (4) along the outer side of the annular rubber curtain cloth (3) in sequence.
2. The slurry shield tunnel portal pressure-bearing sealing device according to claim 1, wherein the tunnel portal external steel ring (1) is formed by assembling and welding four arc-shaped steel plates.
3. The slurry shield tunnel door pressure-bearing sealing device according to claim 2, wherein the joint positions of the four arc-shaped steel plates are respectively fixed by using arc-shaped connecting plates and bolts.
4. The slurry shield tunnel portal pressure-bearing sealing device according to claim 1, wherein annular plates (8) are respectively arranged on the fixed end surfaces of the tunnel portal external steel ring (1) and the tunnel portal embedded steel ring (5) and the end surfaces far away from the tunnel portal, and the tunnel portal external steel ring (1) is fixed with the tunnel portal embedded steel ring (5), the rubber cord sealing ring and the flap sealing ring through the annular plates (8).
5. The slurry shield tunnel portal pressure-bearing sealing device of claim 1, wherein said first predetermined distance is less than said second predetermined distance.
6. The slurry shield tunnel portal pressure-bearing sealing device according to claim 1, wherein the lengthened shield tail brush (2) adopts CO2And the protective welding is carried out on the inner wall of the steel ring (1) externally connected with the tunnel door.
7. The slurry shield tunnel portal pressure-bearing sealing device according to claim 1, characterized in that a plurality of grease injection ports (6) are drilled radially along the outer wall of the tunnel portal external steel ring (1).
8. The slurry shield tunnel portal pressure-bearing sealing device according to claim 7, wherein the plurality of grease injection ports (6) are drilled between the rubber curtain cloth sealing ring and the second shield tail brush sealing ring and between the second shield tail brush sealing ring and the first shield tail brush sealing ring, respectively.
9. A slurry shield tunnel door pressure-bearing sealing device according to claim 6, characterized in that a galvanized pipe and ball valve assembly (7) is installed at each grease injection port.
10. The slurry shield tunnel portal pressure-bearing sealing device according to claim 1, wherein the annular rubber curtain cloth (3) is installed on the end surface of the installed tunnel portal external steel ring (1) in the following way: and the outer edge of the annular rubber curtain cloth (3) is pressed by an arc-shaped plate from the lower part to the upper part on the end surface of the steel ring (1) externally connected with the tunnel door and is installed by using a bolt fixing installation mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922257215.2U CN211174115U (en) | 2019-12-12 | 2019-12-12 | Slurry shield tunnel door pressure-bearing sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922257215.2U CN211174115U (en) | 2019-12-12 | 2019-12-12 | Slurry shield tunnel door pressure-bearing sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211174115U true CN211174115U (en) | 2020-08-04 |
Family
ID=71806654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922257215.2U Expired - Fee Related CN211174115U (en) | 2019-12-12 | 2019-12-12 | Slurry shield tunnel door pressure-bearing sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211174115U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404500A (en) * | 2021-06-30 | 2021-09-17 | 长江勘测规划设计研究有限责任公司 | Starting structure of slurry shield adopting glass fiber reinforced plastic enclosure and construction method |
-
2019
- 2019-12-12 CN CN201922257215.2U patent/CN211174115U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404500A (en) * | 2021-06-30 | 2021-09-17 | 长江勘测规划设计研究有限责任公司 | Starting structure of slurry shield adopting glass fiber reinforced plastic enclosure and construction method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200804 |
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| CF01 | Termination of patent right due to non-payment of annual fee |