CN207144947U - The tunnel shielding portal sealing device of position adjustable - Google Patents
The tunnel shielding portal sealing device of position adjustable Download PDFInfo
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- CN207144947U CN207144947U CN201720914260.9U CN201720914260U CN207144947U CN 207144947 U CN207144947 U CN 207144947U CN 201720914260 U CN201720914260 U CN 201720914260U CN 207144947 U CN207144947 U CN 207144947U
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Abstract
A kind of tunnel shielding portal sealing device of position adjustable, outside tunnel shielding portal, including：Steel bushing, the steel bushing include round steel cylinder, portal end junction steel plate, end seals steel plate, steel skeleton, and Grouting Pipe；Joint seal attachment structure, including built-in fitting, pressing plate, connecting bolt A, and portal end sealing ring；Shield Hermetical connecting structure, including sealed rubber plate, arc pressuring plate and turnover panel on the outside of end seals steel plate are sequentially arranged at, and sealed rubber plate, arc pressuring plate and turnover panel are connected to the connecting bolt B on end seals steel plate.The utility model can effectively seal tunnel shielding portal, it can correct or adjust again portal offset, so that shield starting posture is more flexible, portal easily can be offset into a certain distance to the direction of needs by the form of extension, can quickly align the characteristic at portal center.
Description
Technical field
Shield tunnel construction equipment technical field is the utility model is related to, it is particularly a kind of to be arranged at tunnel shielding portal mouth
Portal sealing device.
Background technology
In constructing metro tunnel, usually it is divided into two Main Stages, first is station（Vertical shaft）Construction stage, second is
The constructing tunnel stage.Influenceed by factors such as two stage designs, constructions, technique is not thorough occasionally there are previous process when changing
Consider that the demand of the latter half construction, or previous stage construction error need the measure of the latter half to make up.This point is in tunnel
Road originates the reception stage using shield construction and frequently encountered, after the completion of mainly having structure construction, tunnel shielding portal size or position
With design inconsistent, curve originate do not consider to originate during portal construction when the portal factor that need to offset, station structure do not consider shield
Situations such as supporting chassis space requirement causes to need inclination angle to originate during shield launching after structure, if these situations are not handled,
Shield tunnel may be caused to originate section horizontal departure excessive.
Above-mentioned shield-tunneling construction problem, conventional processing method are the physical locations by portal, are finely tuned by designer
Originating line, or abolish side portal and thicken the method for opposite side portal and handled.These method processing times length, cost
Height, construction risk are big.So be based on above description, a kind of new method is needed badly so that solve can not be quick present in prior art
Solve the problems, such as that portal position is inaccurate.
Utility model content
The purpose of this utility model is to provide a kind of tunnel shielding portal sealing device of position adjustable, to solve the shield tunnel beginning
When hair section horizontal departure is excessive, length of conventional processing method time, the technical problem that cost is high, construction risk is big.
To achieve the above object, the utility model adopts the following technical scheme that：A kind of tunnel shielding portal sealing of position adjustable
Device, outside tunnel shielding portal, it is characterised in that including：Steel bushing, the steel bushing include round steel cylinder, are welded to connect
Portal end junction steel plate in round steel cylinder wherein one end, is welded to connect the end seals steel plate in the round steel cylinder other end, and welding connects
The steel skeleton being connected on round steel cylinder lateral surface, and be welded to connect on round steel cylinder lateral surface and with the inner side phase of round steel cylinder
The Grouting Pipe of connection.
Joint seal attachment structure, the joint seal attachment structure are pre- in the structure at tunnel shielding portal including being embedded in
Embedded part, pressing plate portal end junction steel plate being pressed on built-in fitting, is fixedly connected on built-in fitting through pressing plate and by pressing plate
Connecting bolt A, and the portal end sealing ring being clipped between built-in fitting and portal end junction steel plate.
Shield Hermetical connecting structure, the shield Hermetical connecting structure are close on the outside of end seals steel plate including being sequentially arranged at
Rubber slab, arc pressuring plate and turnover panel are sealed, and sealed rubber plate, arc pressuring plate and turnover panel are connected on end seals steel plate
Connecting bolt B.
The steel skeleton is made up of the ring floor being welded on steel cylinder lateral surface and longitudinal floor.
The round steel cylinder is spliced by three pieces of curved plates.
The thin briquetting that the pressing plate includes the thick briquetting of pressure and is pressed on the junction steel plate of portal end, thick briquetting and thin briquetting are
Integrative-structure is on built-in fitting, and thick briquetting is provided with the link bolt hole coordinated with connecting bolt A.
The steel bushing is supported on structure base slab by bracing members.
The built-in fitting is pre-embedded steel slab.
The utility model has the characteristics that and beneficial effect compared with prior art：The utility model can be sealed effectively
Tunnel shielding portal, it can correct or adjust again portal offset so that shield starting posture is more flexible.
The utility model can avoid adjustment from originating a section tunnel line in deviation certain limit, can be easily by portal
A certain distance is offset to the direction of needs by the form of extension, can quickly align the characteristic at portal center.That is, this
Utility model can be when shield launching portal and demand be inconsistent, using the three-dimensional relationship feature between cutterhead and portal, one
Determine adjustment portal center in scope so that shield can advance into portal along the center of sealing cord.
The utility model must substantially on the same axis using shield sealing cord and shield machine center requirement, and
Itself considers there is the characteristics of cord portable protective gaps between shield machine and portal, and cord section and hole will be sealed using the utility model
Door section spatially pulls open certain distance so that shield and the incidence relation demand of original structure portal are changed into shield and this practicality
Incidence relation demand between new so that the gap between shield machine and portal is changed into variable, is greatly reduced portal
Intractability caused by construction deviation.
The utility model combines the characteristics of glass fiber-reinforced polymer portal building enclosure, is a hole that position can be adjusted flexibly
Door seal device, it can save what shield launching portal was abolished under the cooperation using glass fiber-reinforced polymer building enclosure technique
Technique, the structure destruction during portal adjustment is effectively avoided, the stabilization and fixing of built-in fitting is ensure that, reduces wind
Danger, shortens the duration, has saved cost, improve and originate security.
Device described in the utility model can make shield machine enter sealing state in advance, can shorten the reinforcing of shield launching termination
The longitudinal extent of body（Shorten termination strengthening length）, it is cost-effective.And due to the joint seal connection in the utility model
Portal end junction steel plate in structure does not use open-cellular form to connect, and uses pressing plate to connect, and effectively connecting plate narrows（Enough pressures
Plate compresses）So that in the case where minimum workload handles portal built-in fitting, exist between the utility model and built-in fitting
More mobility.
Device described in the utility model can also block portal by peripheral slip casting, and raising originates portal sealing security.
Device described in the utility model is also with easy to process, economic and practical high efficiency, flexibly safety can have enough to meet the need repetition makes
Characteristic.
Steel bushing in device described in the utility model is extended portal using steel construction, with reference to portal glass fiber-reinforced polymer
Building enclosure technique, work and risk that tunnel shielding portal is abolished can be saved, can be reused cost-effective.
Device described in the utility model extends portal, and shield machine shield tail can be caused to enter portal in advance, into complete close
Envelope state, it is possible to reduce termination foundation stabilization length, it is cost-effective.
Brief description of the drawings
The utility model is described in more detail below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged diagram at a in Fig. 1.
Fig. 3 is the enlarged diagram at b in Fig. 1.
Fig. 4 is the schematic diagram of A-A sections in Fig. 1.
Fig. 5 is the enlarged diagram at c in Fig. 4.
Fig. 6 is the schematic diagram of turnover panel.
Fig. 7 is the structure of the main view of pressing plate.
Fig. 8 is Fig. 7 left view schematic diagram.
Fig. 9 is the schematic diagram of method and step one described in the utility model.
Figure 10 is the schematic diagram of method and step two described in the utility model.
Figure 11 is the schematic diagram of method and step three described in the utility model.
Figure 12 is the schematic diagram of method and step four described in the utility model.
Figure 13 is the schematic diagram of method and step five described in the utility model.
Reference：1- portals end junction steel plate, 2- end seals steel plate, 3- rings floor, 4- longitudinal directions floor,
5- round steel cylinder, 6- connecting bolt A, 7- Grouting Pipe, 8- pressing plates, 8.1- thickness briquetting, the thin briquettings of 8.2-, 8.3- connection spiral shells
Keyhole, 9- portals end sealing ring, 10- sealed rubber plates, 11- turnover panels, 12- arc pressuring plates, 13- connecting bolts B, 14-
Built-in fitting, 15- structures, 16- bracing members, 17- structure base slabs, 18- originate design centre, the actual type heart of 19- portals,
20- portals installation contour line, 21- supplement steel plate, 22- mounting holes, 23- position adjustables tunnel shielding portal sealing device,
24- adapter plates, 25- seal gaskets.
Embodiment
Embodiment is referring to shown in Fig. 1-6, the tunnel shielding portal sealing device of this position adjustable, outside tunnel shielding portal,
Including：Steel bushing, the steel bushing include round steel cylinder 5, are welded to connect the portal end junction steel plate in the wherein one end of round steel cylinder 5
1, the end seals steel plate 2 in the other end of round steel cylinder 5 is welded to connect, the steel skeleton being welded to connect on the lateral surface of round steel cylinder 5, with
And the Grouting Pipe 7 for being welded to connect on the lateral surface of round steel cylinder 5 and being connected with the inner side of round steel cylinder 5, the Grouting Pipe 7 make
Blocked with preceding by grease and ball valve, availability when keeping using, it is rapid that the Grouting Pipe can inject rapid hardening slurries by ground
Packing space reaches portal sealing effectiveness, and the ball valve must be supporting with external grouting equipment pipe joint.
Referring to Fig. 4, Fig. 5, the round steel cylinder 5 is spliced by three pieces of curved plates, i.e., round steel cylinder 5 is divided into three pieces of arcs
Steel plate, three pieces of curved plate terminations set adapter plate 24, are attached by bolt, carried out among adapter plate with seal gasket 25
Sealing.The diameter of round steel cylinder 5 should be consistent with portal, and length should meet that cutterhead acts the minimum length requirement turned.
The steel bushing should have enough rigidity, therefore, be provided with steel skeleton on the lateral surface of round steel cylinder 5, steel skeleton by
The ring floor 3 and longitudinal floor 4 being welded on the lateral surface of steel cylinder 5 form.Joint seal attachment structure, the joint seal connect
Binding structure includes the built-in fitting 14 being embedded in the structure 15 at tunnel shielding portal, and portal end junction steel plate 1 is pressed in into built-in fitting 14
On pressing plate 8, the connecting bolt A6 being fixedly connected on through pressing plate 8 and by pressing plate 8 on built-in fitting 14, and be clipped in built-in fitting 14
Portal end sealing ring 9 between portal end junction steel plate 1.Portal end sealing ring 9 should possess enough tension force and intensity,
Smooth no breakage is answered in installation.The built-in fitting 14 is preferably pre-embedded steel slab.
Referring to Fig. 7, Fig. 8, the pressing plate 8 includes the thick briquetting 8.1 of pressure and the thin briquetting being pressed on portal end junction steel plate 1
8.2, thick briquetting 8.1 and thin briquetting 8.2 are structure as a whole on built-in fitting 14, and thick briquetting 8.1 is provided with and connecting bolt
The link bolt hole 8.3 that A6 coordinates.
The steel bushing pressing plate 8 is crimped on built-in fitting 14（That is portal pre-embedded steel slab）On, the position adjustable of pressing plate 8 should meet
Portal offset requirement amount.As supplement, the opposite side built-in fitting of portal offset direction should inwardly be widened with supplement steel plate.
Shield Hermetical connecting structure, the shield Hermetical connecting structure include being sequentially arranged at the outside of end seals steel plate 2
Sealed rubber plate 10, arc pressuring plate 12 and turnover panel 11, and sealed rubber plate 10, arc pressuring plate 12 and turnover panel 11 are connected to end
Connecting bolt B13 on head sealing steel plate 2.The sealed rubber plate 10 should possess enough tension force and intensity, and installation should be smooth
Without breakage.The turnover panel 11 should effectively compress sealed rubber plate 10, prevent from loosening.
Preferably, the sealed rubber plate 10 should be close to the steel bushing mounting surface it is closely knit, sealed rubber plate 10
Length, thickness, elasticity and position of opening should be consistent with end seals steel plate 2.
Preferably, arc pressuring plate 12 should be consistent with the radian of end seals steel plate 2, perforate, ring inseam length is little
In 30mm.
Preferably, the turnover panel 11 should possess moderate length, the hinge jaw in turnover panel 11 should have enough connection length
Degree and flexibility, the turnover panel 11 should be fixed using connecting bolt B13, and the connecting bolt B13 should be checked one by one to be tightened up.
The bottom of the tunnel shielding portal sealing device 23 of position adjustable answers site setup support to improve structure cantilever environment, prevents
Shield-tunneling construction process shield machine gravity causes the sealing device to deform or destroy, to ensure the integrality of sealing structure, such as
Reference can be made to Fig. 1, the steel bushing 5 is supported on structure base slab 17 by bracing members 16.As preferred, the material of bracing members 16
For H20 shaped steel, coating steel pipe and/or Φ 20mm screw-thread steels.
Each component in the tunnel shielding portal sealing device of position adjustable is processed in factory, and finished product is connected with bolt at the scene
Connect.
The steel bushing and the shield Hermetical connecting structure are molded in ground integral assembling；To the pre- of portal mouth before installation
Embedded part 14 is widened（Welding supplement steel plate 21 i.e. shown in Fig. 9-13）, regulation and control work completed, the outline line traffic control of installation
System point setting-out mark；Portal end sealing ring 9 has been pasted onto on built-in fitting 14 in a pre-installation；The steel bushing and assembly
Good shield Hermetical connecting structure integral hoisting installation is alignd with described profile control point；The steel bushing is with pressing plate 8 and even
Connecting bolt A6 is pressed abd fixed on built-in fitting 14；The steel bushing installation rear lower should increase bracing members and be supported on structure negative
On.
The steel bushing is connected by pressing plate 8 with the built-in fitting 14 of portal mouth, in certain deviation range, can be ignored pre-
The deviation and ellipse change that embedded part 14 is installed, steel bushing can be adjusted in the range of the intermediate gaps of pressing plate 8 and portal end junction steel plate 1
Position is to change the midline position of portal so that portal center is consistent with shield launching axis or closer to consistent.
All connections of the joint seal attachment structure and shield Hermetical connecting structure should have enough intensity, seam
All joints of Hermetical connecting structure and shield Hermetical connecting structure should have good sealing, to meet the pressure of shield-tunneling construction
Force environment needs.
Referring to Fig. 9-13, the eccentrically mounted method of the tunnel shielding portal sealing device of this position adjustable, it is characterised in that step
It is rapid as follows：
Referring to Fig. 9, Step 1: measuring the actual type heart 19 of portal, setting-out goes out to originate design centre 18, calculates portal reality
The border type heart 19 is with originating the distance between design centre 18 h, as h ＞ 30mm, carries out in next step；
Referring to Figure 10, Step 2: going out portal installation contour line 20 according to the setting-out of design centre 18 is originated；
Referring to Figure 11, Step 3: installing contour line 20 according to portal, the mounting hole on built-in fitting 14 and built-in fitting is carried out
Post-processing, to ensure that sealing device can be installed accurately, processing method is, by former portal scope inside points with supplement steel plate 21 to
Interior polishing, and remake new mounting hole 22, i.e., supplement steel plate 21 is welded with along installation profile on built-in fitting 14, and pre-buried
On part 14 and put a pressing plate mounting distance along outside installation profile on supplement steel plate 21 and remake new mounting hole 22（Use gas cutting
New mounting hole 22 is cut out on built-in fitting 14 and supplement steel plate 21）, then connecting bolt A is inserted in new mounting hole 22,
Periphery weldering is full fixed, and the mounting hole originally set on built-in fitting is discarded；When the set location of mounting hole beyond built-in fitting 14 and is mended
If filling the scope of steel plate 21, connecting bolt A6 is directly beaten in structure 15 and is fixed.
Step 4: portal end sealing ring 9 is pasted, while other portions of tunnel shielding portal sealing device of position adjustable are completed on ground
The assembling of part；
Step 5: the tunnel shielding portal sealing device 23 and miscellaneous part of installation position adjustable, fixation are tightened, Checking on effect.
Referring to Figure 12, Step 4: portal end sealing ring 9 is pasted, while the tunnel shielding portal sealing of position adjustable is completed on ground
The assembling of device miscellaneous part；
Referring to Figure 13, Step 5: the tunnel shielding portal sealing device miscellaneous part of installation position adjustable, fixation are tightened, check
Effect.
In the step 5, the specific installation steps of the tunnel shielding portal sealing device miscellaneous part of position adjustable are as follows：
Step 1, steel bushing is good in installation on ground, measurement ovality, measurement portal end junction steel plate 1, end seals steel
The flatness of plate 2, when three pieces of curved plates splice, in seam（I.e. among adapter plate 24）Seal gasket should be installed on request
25, bolt should fasten, and three pieces of curved plates are spliced into annulus（It is spliced into steel bushing）Afterwards, anti-deformation pull bar should be welded.
Step 2, with connecting bolt B13 sealed rubber plate 10, arc pressuring plate 12 and turnover panel 11 are arranged on the steel bushing
On.
Step 3, contraposition that steel bushing is gone into the well, it is arranged on pressing plate 8 and connecting bolt A6 on portal, checks that each sealing is tight
Property, to the seam of out-of-flatness, note sealing glue sealing.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (6)
- A kind of 1. tunnel shielding portal sealing device of position adjustable, outside tunnel shielding portal, it is characterised in that including：Steel bushing, The steel bushing includes round steel cylinder（5）, it is welded to connect in round steel cylinder（5）The wherein portal end junction steel plate of one end（1）, welding It is connected to round steel cylinder（5）The end seals steel plate of the other end（2）, it is welded to connect in round steel cylinder（5）Steel skeleton on lateral surface, with And it is welded to connect in round steel cylinder（5）On lateral surface and with round steel cylinder（5）The Grouting Pipe that is connected of inner side（7）；Joint seal Attachment structure, the joint seal attachment structure include being embedded in the structure at tunnel shielding portal（15）In built-in fitting（14）, will Portal end junction steel plate（1）It is pressed in built-in fitting（14）On pressing plate（8）, through pressing plate（8）And by pressing plate（8）It is fixedly connected on pre- Embedded part（14）On connecting bolt A（6）, and it is clipped in built-in fitting（14）With portal end junction steel plate（1）Between portal end it is close Seal（9）；Shield Hermetical connecting structure, the shield Hermetical connecting structure include being sequentially arranged at end seals steel plate（2）Outside Sealed rubber plate（10）, arc pressuring plate（12）And turnover panel（11）, and by sealed rubber plate（10）, arc pressuring plate（12）With turn over Plate（11）It is connected to end seals steel plate（2）On connecting bolt B（13）.
- 2. the tunnel shielding portal sealing device of position adjustable according to claim 1, it is characterised in that：The steel skeleton is by welding It is connected on steel cylinder（5）Ring floor on lateral surface（3）With longitudinal floor（4）Composition.
- 3. the tunnel shielding portal sealing device of position adjustable according to claim 1, it is characterised in that：The round steel cylinder（5） It is spliced by three pieces of curved plates.
- 4. the tunnel shielding portal sealing device of position adjustable according to claim 1, it is characterised in that：The pressing plate（8）Bag Include the thick briquetting being pressed on built-in fitting（8.1）Be pressed in portal end junction steel plate（1）On thin briquetting（8.2）, thick briquetting（8.1） With thin briquetting（8.2）It is structure as a whole in built-in fitting（14）On, and thick briquetting（8.1）It is provided with and connecting bolt A（6）Coordinate Link bolt hole（8.3）.
- 5. the tunnel shielding portal sealing device of position adjustable according to claim 1, it is characterised in that：The steel bushing（5） Pass through bracing members（16）It is supported on structure base slab（17）On.
- 6. the tunnel shielding portal sealing device of position adjustable according to claim 1, it is characterised in that：The built-in fitting（14） For pre-embedded steel slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720914260.9U CN207144947U (en) | 2017-07-26 | 2017-07-26 | The tunnel shielding portal sealing device of position adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720914260.9U CN207144947U (en) | 2017-07-26 | 2017-07-26 | The tunnel shielding portal sealing device of position adjustable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207144947U true CN207144947U (en) | 2018-03-27 |
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ID=61673265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720914260.9U Active CN207144947U (en) | 2017-07-26 | 2017-07-26 | The tunnel shielding portal sealing device of position adjustable |
Country Status (1)
| Country | Link |
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| CN (1) | CN207144947U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143339A (en) * | 2017-07-26 | 2017-09-08 | 北京城建中南土木工程集团有限公司 | The tunnel shielding portal sealing device and its eccentrically mounted method of position adjustable |
| CN108825898A (en) * | 2018-08-09 | 2018-11-16 | 中铁工程装备集团有限公司 | A kind of novel curved surface connecting flange and its processing method |
-
2017
- 2017-07-26 CN CN201720914260.9U patent/CN207144947U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143339A (en) * | 2017-07-26 | 2017-09-08 | 北京城建中南土木工程集团有限公司 | The tunnel shielding portal sealing device and its eccentrically mounted method of position adjustable |
| CN107143339B (en) * | 2017-07-26 | 2023-05-30 | 北京城建中南土木工程集团有限公司 | Position-adjustable shield tunnel portal sealing device and eccentric installation method thereof |
| CN108825898A (en) * | 2018-08-09 | 2018-11-16 | 中铁工程装备集团有限公司 | A kind of novel curved surface connecting flange and its processing method |
| CN108825898B (en) * | 2018-08-09 | 2023-07-25 | 中铁工程装备集团有限公司 | Novel curved surface connecting flange and processing method thereof |
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