CN207063998U - A kind of external mounted shield launching portal hermetic seal device - Google Patents
A kind of external mounted shield launching portal hermetic seal device Download PDFInfo
- Publication number
- CN207063998U CN207063998U CN201721078014.0U CN201721078014U CN207063998U CN 207063998 U CN207063998 U CN 207063998U CN 201721078014 U CN201721078014 U CN 201721078014U CN 207063998 U CN207063998 U CN 207063998U
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- portal
- steel loop
- annular panel
- panel
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Abstract
The utility model belongs to metro shield section construction field, more particularly to a kind of external mounted shield launching portal hermetic seal device, solve existing shield launching portal hermetic seal device only to seal together, and because rubber tensile strength is low, be easily caused water burst dash forward mud accident the problem of, the external steel loop device of portal fixed including steel loop pre-buried with portal, the external steel loop device of portal includes steel loop, both ends position is respectively arranged with first annular panel and the 3rd annular panel along shield machine tunneling direction on the inside of steel loop, steel loop middle inside position is provided with the second annular panel, first annular panel and the second annular panel are connected to rubber heavy curtain and turnover panel, 3rd annular panel is connected with wire brush and sealing plate, steel loop has oil addition hole between annular panel.The utility model seals two seal cavities that wire brush sealing is lengthened with together with and is formed by twice turnover panel heavy curtain, it is ensured that sealing effectiveness, shield launching risk can effectively be reduced by coordinating termination to reinforce.
Description
Technical field
The utility model belongs to metro shield section construction field, and in particular to a kind of external mounted shield launching portal sealing
Antipriming.
Background technology
As continually developing for the underground space, Shield Construction Technique are fast with its safe excavation and lining cutting, driving speed；Push away
Automated job can be realized into and out of overall processes such as native, assembled lining cutting, labor intensity of constructing is low；Traffic above-ground and facility are not influenceed,
The facilities such as underground utilities are not influenceed simultaneously；Shipping is not influenceed when passing through river course, not by the weather conditions shadow such as season, wind and rain in construction
Ring, there is no the advantages that noise and disturbance in construction and be widely used in Tunnel Engineering.But since shield method comes out, shield
It is exactly one of maximum link of shield-tunneling construction risk all the time to originate reception, particularly under the conditions of rich water Soft Clay,
Caused by Sand the land subsidence of termination, cave in or even building collapsing, shield are flooded and the major accident such as buried and constantly increase
More, there is shield when land subsidence caves in, Tianjin construction site originates in multiple building sites such as Nanjing, Shanghai, Guangzhou when originating
Flooded, Nanjing building site arrival when tunnel cave shield buried etc., to enable originating and reaching for shield safety, remove
Outside termination reinforces, portal sealing is mostly important supplement.
Existing portal seal construction method is to coordinate crimping plate using rubber cord, reaches the purpose of portal sealing.It is right
In execution conditions relatively preferably, the less shield construction tunnel of Water And Earth Pressures, it is most of that folding is coordinated using above-mentioned rubber cord
The portal seal construction method of pressing plate is sealed.But above-mentioned portal seal construction method, is primarily present following defect：Only one
Road seals, relatively easy, when Water And Earth Pressures are smaller, it is necessary to which shield machine can be only achieved the effect of water shutoff quickly through simultaneously slip casting in time
Fruit；Meanwhile sealing relies primarily on rubber, during shield-tunneling construction, because rubber tensile strength is relatively low, tends to damage
It is bad, cause the prominent mud accident of water burst.
The content of the invention
The utility model only seals together in order to solve existing shield launching portal hermetic seal device, in Water And Earth Pressures
, it is necessary to which shield machine is quickly through simultaneously slip casting in time can be only achieved the effect of water shutoff and sealing relies primarily on rubber, in shield when smaller
In structure work progress, because rubber tensile strength is relatively low, be easily damaged cause water burst dash forward mud accident the problem of, there is provided it is a kind of
External mounted shield launching portal hermetic seal device.
The utility model is achieved by the following technical solution：A kind of external mounted shield launching portal hermetic seal dress
Put, including the external steel loop device of portal that steel loop pre-buried with portal is fixed, the external steel loop device of portal include steel loop, steel loop inner side
Both ends position is respectively arranged with first annular panel and the 3rd annular panel, steel loop middle inside position along shield machine tunneling direction
Install and be equipped with the second annular panel, first annular panel and the second annular panel are connected to rubber heavy curtain and turnover panel, turnover panel
It is arranged on rubber curtain backstage side and is connected with wire brush and sealing plate for contact connection, the 3rd annular panel, steel loop is in ring surface
Oil addition hole is had between plate.Wherein, oil addition hole makes at the scene, determines position as needed, rubber heavy curtain and
Turnover panel bottom and shield machine outer diameter contact, sealing plate and section of jurisdiction outer diameter contact.
Turnover panel includes fixed plate, axis and folding pressing plate, is provided with bolt hole in fixed plate, folding pressing plate is hinged by axis
In fixed plate.Wherein, fixed plate is fixed on first annular panel and the second annular panel respectively by bolt, folding
Pressing plate can surround central axis.When shield machine tunnels forward, turnover panel forms rigid support on rubber curtain backstage, prevents rubber curtain
Curtain is turned over, and is advantageous to it and is kept sealing.
Wire brush includes U-shaped steel board head, and high-strength steel tow, the both ends of high-strength steel tow are provided with U-shaped steel board head
It is provided with zinc-plated reinforcement steel plate.Wherein, steel tendon length determines according to the gap of the external steel loop device of portal and section of jurisdiction, is usually
600mm。
In a ring, its internal diameter is identical with the external diameter of shield duct piece for sealing plate, available for by between outline excavation and section of jurisdiction
Gap is blocked, mortar leakage prevention.
The pre-buried steel loop of portal is used to fix the external steel loop device of portal, and to ensure stabilized structure, the pre-buried steel loop of portal is led to
Cross dowel poured with major structure of construction be connected it is integral.
The structure of first annular panel, the second annular panel and the 3rd annular panel is identical, and its internal diameter and portal are pre-buried
The internal diameter of steel loop is identical, and the bolt hole being connected with rubber heavy curtain and turnover panel is provided with annular panel.
To ensure the stability of the external steel loop apparatus structure of portal, preferably, the external steel loop device of portal and portal are pre-
Bury and be provided with stiffener plate between steel loop, the second annular panel and the 3rd annular panel, stiffener plate is triangular steel plate.
The utility model has the advantage that compared with prior art is with caused effect：
The utility model is rational in infrastructure, assembled convenience, cheap, by being lengthened by the sealing of twice turnover panel heavy curtain with together with
The three seals that wire brush sealing is formed form two seal cavities, cavity internal pressure grease injection when originating, it is ensured that sealing effectiveness, shield
Structure originates when being sealed by portal, and the bending direction of rubber heavy curtain, turnover panel and wire brush is consistent with the direction of propulsion of shield, with
The materials such as water, sand or slurries are flowed on the contrary, Water And Earth Pressures are acted on rubber heavy curtain and wire brush, heavy curtain and wire brush stirrup shield
Body or section of jurisdiction, and grease play sealing function jointly.To prevent that Water And Earth Pressures are excessive, rubber heavy curtain and wire brush is caused to turn up,
Rubber curtain is behind the scenes to set rigid turnover panel to undertake Water And Earth Pressures, and stops in shield tail after pulpboard enters external ring and weld arc sealing plate,
Rigid support is provided for wire brush, shield launching risk can effectively be reduced by coordinating termination to reinforce.
Brief description of the drawings
Fig. 1 is the utility model structure section schematic diagram；
Fig. 2 is the external ring structure section drawing of the utility model；
Fig. 3 is the utility model structural facades schematic diagram；
Fig. 4 is the utility model turnover panel front view；
Fig. 5 is the utility model turnover panel side view；
Fig. 6 is the utility model wire brush drawing.
In figure：The pre-buried steel loop of 1- portals, 2- shield machine external diameters, the external steel loop device of 3- portals, 4- rubber heavy curtains, 5- are turned over
Plate, 6- wire brushes, 7- oil additions hole, 8- sections of jurisdiction external diameter, 9- stiffener plates, 10a- double end high-strength bolts, 10b- high-strength bolts,
11- fixed plates, 12- axis, 13- folding pressing plates, the zinc-plated reinforcement steel plates of 14-, 15- high-strength steel tow, 16-U shape steel plate dops,
The first annular panels of 17a-, the second annular panels of 17b-, the 3rd annular panels of 17c-, 18- steel loops, 19- sealing plates.
Embodiment
The utility model is described further with reference to Fig. 1~Fig. 6, external mounted shield launching portal hermetic seal device bag
Include the pre-buried steel loop 1 of supporting portal, the external steel loop device 3 of portal, twice rubber heavy curtain 4, twice turnover panel 5, wire brush 6, grease
Filler port 7, sealing plate 19 and stiffener plate 9 form, and are sealed by twice turnover panel 5, rubber heavy curtain 4 and wire brush 6 is lengthened with together with
Sealing forms two seal cavities., can be by oil addition hole 7 to cavity internal pressure grease injection, it is ensured that sealing effectiveness when originating.
The pre-buried steel loop 1 of portal pours integral, the diameter and shield of the pre-buried steel loop 1 of portal by dowel with station agent structure
Structure machine outer dia matches, when originating, the pre-buried steel loop 1 of portal 200 ~ 300mm generally big compared with shield machine；The pre-buried steel loop 1 of portal
Back side is arranged parallel to the flange of metope, reserves 72 bolts hole of φ 24 on flange, is uniformly distributed with 5 ° of angles along flange, portal
The pre-buried preferably thick 16mm of steel loop 1 and flange thickness, can slightly be adjusted according to shield machine diameter, when shield machine is when being relatively large in diameter,
The pre-buried steel loop 1 of portal and flange thickness can accordingly increase.
The external steel loop device 3 of portal is formed by three pieces of ring surface plate welds positioned at the inner side of steel loop 18, and annular panel includes
First annular panel 17a, the second annular annular panel 17c of panel 17b and the 3rd, its structure is identical, and thickness is 16mm, internal diameter
Steel loop 1 pre-buried with portal is identical, the 18 wide 700mm of steel loop contained by the external steel loop device 3 of portal, first annular panel 17a, second
Annular panel 17b, the 3rd annular panel 17c and outside steel loop 18 thickness are 20mm, first annular panel 17a and the second ring
Shape panel 17b is provided with bolt hole, and the connecting hole on bolt hole size, position and the pre-buried steel loop 1 of portal matches, second ring
24 pieces of stiffener plates 9 have been evenly arranged respectively between shape panel 17b, the 3rd annular panel 17c and steel loop 18.
Turnover panel 5 is made up of fixed plate 11, axis 12 and folding pressing plate 13, and thickness 20mm, width and length are according to shield
Machine size determines that fixed plate 11 is separately fixed on the annular panel 17b of first annular panel 17a and second, and folding pressing plate 13 can
Rotated along axis 12, shield machine forms rigid support after tunneling forward after rubber heavy curtain 4, prevents rubber heavy curtain 4 from turning over.
For wire brush 6 by wide 100mm, the thick 1mm inner clip high-strength steel tow 15 of zinc-plated reinforcement steel plate 14, one end passes through U-shaped steel
Board first 16, which is fixed, is integrated into the wide wire brushes 6 of 100mm, U-shaped steel plate 16 thick 4mm, long 176mm, the length of steel tendon 15 according to
The external steel loop device 3 of portal and the determination of section of jurisdiction gap, preferred length 60mm.
External mounted shield launching portal hermetic seal device is connected by double end high-strength bolt 10a steel loops 1 pre-buried with portal,
The middle installation rubber heavy curtain 4 of the pre-buried steel loop 1 of portal and first annular panel 17a, first of annular panel 17a outsides installation are turned over
Plate 5 forms first of rubber turnover panel heavy curtain sealing, and 16 pieces of triangle gussets 9 of welding enter between the outside of steel loop 18 and the pre-buried steel loop 1 of portal
Row is strengthened, and triangle gusset 9 is uniformly distributed；The sealing of second rubber turnover panel heavy curtain is fixed on the second annular panel 17b, according to the
Second ring panel 17b, rubber heavy curtain 4, fixed ring flat-plate, the order of turnover panel 5 are fixed by high-strength connecting bolt 10b；Wire brush 6 is logical
Cross and be solder-connected to 17c on the 3rd annular panel, form the sealing of the 3rd wire brush.Oil addition hole 7 makes at the scene, according to
It needs to be determined that position.
Sealing plate 19 stops that pulpboard has just enter into the external steel loop device 3 of portal but wire brush 6 not yet departs from only pulpboard in shield tail
When, it is welded on wire brush U-shaped steel board first 16, wherein sealing thickness of slab 10mm, width are true according to external ring 3 and section of jurisdiction gap
It is fixed.
In use, the bottom of rubber heavy curtain 4 and turnover panel 5 contacts with shield machine external diameter 2, sealing plate 19 connects with section of jurisdiction external diameter 8
Touch, ensure to seal with this, reach water-stagnating effect.
Claims (7)
1. a kind of external mounted shield launching portal hermetic seal device, including with the pre-buried steel loop of portal（1）Fixed portal is external
Steel loop device（3）, it is characterised in that：The external steel loop device of portal（3）Including steel loop（18）, steel loop（18）Inner side both ends are along shield
Machine tunneling direction is respectively arranged with first annular panel（17a）With the 3rd annular panel（17c）, steel loop（18）Middle inside position
It is provided with the second annular panel（17b）, first annular panel（17a）With the second annular panel（17b）It is connected to rubber curtain
Curtain（4）And turnover panel（5）, turnover panel（5）It is arranged on rubber heavy curtain（4）Rear side and the two for contact connect, the 3rd annular panel（17c）
It is connected with wire brush（6）And sealing plate（19）, steel loop（18）Oil addition hole is had between annular panel（7）.
A kind of 2. external mounted shield launching portal hermetic seal device according to claim 1, it is characterised in that：Turnover panel
（5）Including fixed plate（11）, axis（12）With folding pressing plate（13）, fixed plate（11）On be provided with bolt hole, folding pressing plate（13）
Pass through axis（12）It is hinged on fixed plate（11）On.
A kind of 3. external mounted shield launching portal hermetic seal device according to claim 2, it is characterised in that：Wire brush
（6）Including U-shaped steel board head（16）, U-shaped steel board head（16）Inside it is provided with high-strength steel tow（15）, high-strength steel tow（15）'s
It is provided at both ends with zinc-plated reinforcement steel plate（14）.
A kind of 4. external mounted shield launching portal hermetic seal device according to claim 1 or 2, it is characterised in that：It is close
Shrouding（19）In a ring, its internal diameter is identical with the external diameter of shield machine segment.
A kind of 5. external mounted shield launching portal hermetic seal device according to claim 1 or 2, it is characterised in that：Hole
The pre-buried steel loop of door（1）Poured by dowel with major structure of construction be connected it is integral.
A kind of 6. external mounted shield launching portal hermetic seal device according to claim 1, it is characterised in that：First ring
Shape panel（17a）, the second annular panel（17b）With the 3rd annular panel（17c）Structure it is identical, and its internal diameter and portal are pre-buried
Steel loop（1）Internal diameter it is identical, be provided with annular panel and rubber heavy curtain（4）And turnover panel（5）The bolt hole of connection.
A kind of 7. external mounted shield launching portal hermetic seal device according to claim 1, it is characterised in that：Outside portal
Connect steel loop device（3）With the pre-buried steel loop of portal（1）, the second annular panel（17b）With the 3rd annular panel（17c）Between be provided with
Stiffener plate（9）, stiffener plate（9）For triangle stainless steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721078014.0U CN207063998U (en) | 2017-08-27 | 2017-08-27 | A kind of external mounted shield launching portal hermetic seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721078014.0U CN207063998U (en) | 2017-08-27 | 2017-08-27 | A kind of external mounted shield launching portal hermetic seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207063998U true CN207063998U (en) | 2018-03-02 |
Family
ID=61514372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721078014.0U Expired - Fee Related CN207063998U (en) | 2017-08-27 | 2017-08-27 | A kind of external mounted shield launching portal hermetic seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207063998U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643933A (en) * | 2018-04-27 | 2018-10-12 | 中铁十二局集团有限公司 | Shield receives portal reinforcement means |
| CN109026151A (en) * | 2018-10-17 | 2018-12-18 | 中铁隧道局集团有限公司 | Big cross section rectangular top pipe tunnel portal sealing device and its installation method |
| CN109681229A (en) * | 2018-12-30 | 2019-04-26 | 中国铁建股份有限公司 | Tunnel sealing component |
| CN109736832A (en) * | 2019-01-07 | 2019-05-10 | 中铁十一局集团城市轨道工程有限公司 | Originating terminal portal sealing device and method when shield launching wears existing shield tunnel under being |
| CN110005421A (en) * | 2019-04-10 | 2019-07-12 | 中铁十九局集团轨道交通工程有限公司 | Sandy soil layer shield driven Metro tunnel originates portal sealing device and encapsulating method |
| CN110056364A (en) * | 2019-04-25 | 2019-07-26 | 中铁二院工程集团有限责任公司 | A kind of external sealing structure for rock tunnel(ling) machine |
| CN110374640A (en) * | 2019-08-19 | 2019-10-25 | 上海市基础工程集团有限公司 | Pipe jacking tunnel head stops husky antipriming into hole |
| CN110924992A (en) * | 2019-12-17 | 2020-03-27 | 曹文 | Shield tunnel portal combined elastic water-stop arc-shaped steel plate device |
| CN111608680A (en) * | 2020-04-27 | 2020-09-01 | 上海隧道工程有限公司 | Sealing and water stopping method for rectangular pipe-jacking starting tunnel portal |
| CN112211641A (en) * | 2020-11-03 | 2021-01-12 | 中建八局轨道交通建设有限公司 | Sealing structure of shield starting tunnel portal and construction method thereof |
| CN112983445A (en) * | 2021-03-11 | 2021-06-18 | 中铁三局集团华东建设有限公司 | Water-rich sand layer shield launching method and device based on portal extension ring device |
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2017
- 2017-08-27 CN CN201721078014.0U patent/CN207063998U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643933A (en) * | 2018-04-27 | 2018-10-12 | 中铁十二局集团有限公司 | Shield receives portal reinforcement means |
| CN109026151A (en) * | 2018-10-17 | 2018-12-18 | 中铁隧道局集团有限公司 | Big cross section rectangular top pipe tunnel portal sealing device and its installation method |
| CN109681229B (en) * | 2018-12-30 | 2021-11-09 | 中国铁建股份有限公司 | Tunnel water stop assembly |
| CN109681229A (en) * | 2018-12-30 | 2019-04-26 | 中国铁建股份有限公司 | Tunnel sealing component |
| CN109736832A (en) * | 2019-01-07 | 2019-05-10 | 中铁十一局集团城市轨道工程有限公司 | Originating terminal portal sealing device and method when shield launching wears existing shield tunnel under being |
| CN109736832B (en) * | 2019-01-07 | 2024-03-08 | 中铁十一局集团城市轨道工程有限公司 | Device and method for sealing initial end portal when shield tunneling machine starts to pass through existing shield tunnel |
| CN110005421A (en) * | 2019-04-10 | 2019-07-12 | 中铁十九局集团轨道交通工程有限公司 | Sandy soil layer shield driven Metro tunnel originates portal sealing device and encapsulating method |
| CN110005421B (en) * | 2019-04-10 | 2023-09-22 | 中铁十九局集团轨道交通工程有限公司 | Sealing device and sealing method for subway tunnel originating tunnel portal by sandy soil layer shield method |
| CN110056364A (en) * | 2019-04-25 | 2019-07-26 | 中铁二院工程集团有限责任公司 | A kind of external sealing structure for rock tunnel(ling) machine |
| CN110056364B (en) * | 2019-04-25 | 2024-03-22 | 中铁二院工程集团有限责任公司 | External sealing structure for tunnel boring machine |
| CN110374640B (en) * | 2019-08-19 | 2021-07-30 | 上海市基础工程集团有限公司 | Sand-stopping and water-stopping device for head of pipe-jacking tunnel |
| CN110374640A (en) * | 2019-08-19 | 2019-10-25 | 上海市基础工程集团有限公司 | Pipe jacking tunnel head stops husky antipriming into hole |
| CN110924992A (en) * | 2019-12-17 | 2020-03-27 | 曹文 | Shield tunnel portal combined elastic water-stop arc-shaped steel plate device |
| CN111608680A (en) * | 2020-04-27 | 2020-09-01 | 上海隧道工程有限公司 | Sealing and water stopping method for rectangular pipe-jacking starting tunnel portal |
| CN112211641A (en) * | 2020-11-03 | 2021-01-12 | 中建八局轨道交通建设有限公司 | Sealing structure of shield starting tunnel portal and construction method thereof |
| CN112211641B (en) * | 2020-11-03 | 2022-07-08 | 中建八局轨道交通建设有限公司 | Sealing structure of shield starting tunnel portal and construction method thereof |
| CN112983445A (en) * | 2021-03-11 | 2021-06-18 | 中铁三局集团华东建设有限公司 | Water-rich sand layer shield launching method and device based on portal extension ring device |
| CN112983445B (en) * | 2021-03-11 | 2023-08-25 | 中铁三局集团华东建设有限公司 | Water-rich sand layer shield starting method and device based on tunnel portal extension ring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180302 |