CN207297011U - A kind of water-rich sand layer slurry shield originates portal sealing device - Google Patents
A kind of water-rich sand layer slurry shield originates portal sealing device Download PDFInfo
- Publication number
- CN207297011U CN207297011U CN201721146547.8U CN201721146547U CN207297011U CN 207297011 U CN207297011 U CN 207297011U CN 201721146547 U CN201721146547 U CN 201721146547U CN 207297011 U CN207297011 U CN 207297011U
- Authority
- CN
- China
- Prior art keywords
- portal
- sealing ring
- wire brush
- inwall
- portal sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Lining And Supports For Tunnels (AREA)
Abstract
It the utility model is related to a kind of water-rich sand layer slurry shield and originate portal sealing device, the slurry shield originates portal and is equipped with inwall, pre-buried steel loop is equipped with the internal orifice of the inwall, portal sealing ring is installed on the end face of the inwall by bolt and pre-buried inner thread sleeve；Cord rubber, arc backing plate and folding pressing plate are equipped with successively from inside to outside in the outer rim of the portal sealing ring；Wire brush outside one of portal is equipped with the inner edge of the portal sealing ring, wire brush in one of portal portal is equipped with the inner edge of the pre-buried steel loop.The beneficial effects of the utility model are：Portal sealing ring is installed on using bolt and originated on the inwall of portal, and compared with welding method, the installation of portal sealing ring is more convenient, regular；When no longer needing portal to seal, portal sealing ring and its cord rubber on portal sealing ring, arc backing plate, the component of folding pressing plate and wire brush easily can be dismantled and reused.
Description
Technical field
The utility model belongs to shield tunnel construction technology field, more particularly to a kind of water-rich sand layer slurry shield originates hole
Door seal device.
Background technology
It is to prevent underground water and silt particle from being sprayed from the gap between shield machine shell and portal when slurry shield machine originates,
Sealing device is installed, common sealing device is by pre-buried steel loop, sealing ring, cord rubber slab, folding pressing plate, arc-shaped pad at portal
Plate and wire brush composition.The reliability of portal sealing structure directly determines the structure of shield launching.If sealing device fails, meeting
Cause to build cabin failure, Sand, or even end well collapses, shield machine is flooded.At present in shield sealing device, in agent structure
During construction, pre-buried portal steel loop, pre-buried steel loop external welding portal sealing ring, cord rubber slab is installed on portal sealing ring.Due to
Portal sealing ring is connected by welding or other modes, and it is all not convenient enough that peace is torn open, influences whether construction in later period portal annular collar tie beam,
Also the recycling of portal sealing ring can not be carried out.In addition, need to inject grease, the pressure direct relation of grease between wire brush
To portal sealing device sealing effect, it is necessary to pay close attention to pressure of grease.
The content of the invention
The purpose of this utility model is to propose that a kind of water-rich sand layer slurry shield originates the technical solution of portal sealing device,
Installation and application effect are improved, makes full use of resource.
To achieve these goals, the technical solution of the utility model is：A kind of water-rich sand layer slurry shield originates portal
Sealing device, the slurry shield originate portal and are equipped with inwall, pre-buried steel loop are equipped with the internal orifice of the inwall, described
The end face of inwall is provided with portal sealing ring, the portal sealing ring outer rim from inside to outside successively be equipped with cord rubber,
Arc backing plate and folding pressing plate；Wire brush outside one of portal is equipped with the inner edge of the portal sealing ring, in the pre-buried steel loop
Inner edge be equipped with wire brush in one portal.
Further, the portal sealing ring is equipped with grease injection hole, and the grease injection hole is the steel to outside the portal
The grease injection hole of grease is injected in wire brush and portal between wire brush.
Further, the grease injection hole includes the twice grease injection hole radially set along the portal sealing ring.
Further, the portal sealing ring is equipped with pressure of grease table, and the probe of the pressure of grease table is located at the hole
Outdoors in wire brush portal between wire brush.
Further, the end face of the inwall is equipped with pre-buried inner thread sleeve, the portal sealing ring by bolt and
The pre-buried inner thread sleeve is installed on the end face of the inwall.
The beneficial effects of the utility model are：Portal sealing ring is installed on using bolt and originated on the inwall of portal, compared with
Welding method, the installation of portal sealing ring are more convenient, regular；When no longer needing portal to seal, portal sealing ring and its peace
The component of cord rubber, arc backing plate, folding pressing plate and wire brush on portal sealing ring can easily be dismantled and repeated
Utilize；Pressure of grease table can monitor the pressure of seal grease, ensure sealing effect.
The utility model is described in detail with reference to the accompanying drawings and examples.
Brief description of the drawings
Fig. 1 is the utility model structure chart.
Embodiment
Such as Fig. 1, a kind of water-rich sand layer slurry shield originates portal sealing device, and the slurry shield originates portal equipped with interior
Chemise 1, is equipped with pre-buried steel loop 2 in the internal orifice of the inwall, portal sealing ring 3 is provided with the end face of the inwall,
The outer rim of the portal sealing ring is equipped with cord rubber 4, arc backing plate 5 and folding pressing plate 6 successively from inside to outside；In the portal
The inner edge of sealing ring is equipped with the outer wire brush 7 of one of portal, and wire brush 8 in one of portal is equipped with the inner edge of the pre-buried steel loop.
The portal sealing ring is equipped with grease injection hole 9, and the grease injection hole is wire brush and hole to outside the portal
The grease injection hole of grease is injected in door between wire brush.
The grease injection hole includes the twice grease injection hole radially set along the portal sealing ring.
The portal sealing ring is equipped with pressure of grease table 10, and the probe 11 of the pressure of grease table is located at the outer steel of the portal
In wire brush portal between wire brush.
The end face of the inwall is equipped with pre-buried inner thread sleeve 12, and the portal sealing ring passes through bolt 13 and described pre-
Inner thread sleeve is buried on the end face of the inwall.
Embodiment one：
A kind of water-rich sand layer slurry shield originates portal sealing device.
In the present embodiment, cutter head of shield machine digging diameter is 6.5m, and it is 6.8m to originate pre-buried 2 design diameter of steel loop of portal.
During construction, the inwall 1 of making cement at portal is being originated, pre-buried steel loop 2 is installed in inwall, pre-buried steel loop adds
Man-hour indwelling bolt hole, inner thread sleeve 12 is welded on the inside of pre-buried steel loop outer rim, is protected when inwall pours with vexed cap.With
M22 connects stud 13 pre-buried steel loop and portal sealing ring 3.
Portal sealing ring outer rim installs cord rubber slab 4, arc pressuring plate 5 and folding pressing plate 6 successively, and three is passed through double end
Bolt 14 is fixed on sealing ring.Folding pressing plate includes circular slab 61 and turnover panel 62, and 63 are connected by axis pin.
Arc pressuring plate is installed between folding pressing plate and cord rubber, ensures that portal sealing ring end face and cord rubber are close
Contact, to prevent leak-stopping water.Cord rubber is arranged on the outside of portal sealing ring, visual good, effectively prevents shield machine from entering portal
During cutterhead scratch cord rubber slab.
Wire brush 7 outside one of portal is equipped with the inner edge of portal sealing ring, is equipped with together in the inner edge of the pre-buried steel loop
Wire brush 8 in portal.The long 53cm of brush body part, the twice wire brush spacing 50cm of wire brush in the outer wire brush of portal and portal,
Ensure to be in close contact with shield machine shell.Meanwhile shield machine build pressure originate cutterhead rotate when, will not scratch to wire brush thus its
Deformation, ensures the sealing effect of wire brush.
Wire brush, cord rubber and folding pressing plate overbending direction and shield machine direction of advance in the outer wire brush of portal, portal
It is identical, and muddy water gushes out direction on the contrary, the effective reversely support of formation and blocking.
Before shield cutter enters portal sealing ring, grease, knife are smeared on wire brush outside portal in wire brush and portal
Before disk enters soil mass consolidation, shield tail grease is filled between twice shield tail wire brush, forms the annular seal space for preventing muddy water from leaking.
The radially arranged twice grease injection port 9 of portal sealing ring.While mud hydraulic pressure is established, injected to twice wire brush centre
Seal grease, grease are symmetrically injected from portal sealing ring lower part, and the injection hole at the top of portal sealing ring is opened, until upper hole has
Untill grease leaks out.In order to ensure portal sealing effect, in 10 points to ten one directions of portal sealing ring, a little to 2 directions
Pressure of grease table 10 is set, and the probe 11 of pressure of grease table is located in the outer wire brush portal of portal between wire brush.Pass through observation
Grease cavity pressure, according to the pressure oscillation situation in muddy water storehouse, injects grease and forms sealing in time.
Portal sealing ring is installed on using bolt and originated on the inwall of portal, originate the construction of portal inwall
When, pre-buried steel loop and inner thread sleeve not coming out need to be only embedded in the inwall of cement, compared with welding method, make mould
Installation and construction are all more convenient.Inwall and pre-buried steel loop are also more regular, and mounting hole door sealing ring is also more convenient, entirely
Portal sealing device also has better seal effect.Pressure of grease table can monitor the pressure of seal grease, ensure sealing effect.
When no longer needing portal to seal, portal sealing ring and its cord rubber on portal sealing ring, arc backing plate, folding
The component of pressing plate and wire brush can easily be dismantled and reused, and save a large amount of manpower and materials.
Claims (5)
1. a kind of water-rich sand layer slurry shield originates portal sealing device, the slurry shield originates portal and is equipped with inwall, its
It is characterized in that, is equipped with pre-buried steel loop in the internal orifice of the inwall, portal sealing ring is installed in the end face of the inwall,
The outer rim of the portal sealing ring is equipped with cord rubber, arc backing plate and folding pressing plate successively from inside to outside；It is close in the portal
The inner edge of seal ring is equipped with the outer wire brush of one of portal, and wire brush in one of portal is equipped with the inner edge of the pre-buried steel loop.
2. a kind of water-rich sand layer slurry shield according to claim 1 originates portal sealing device, it is characterised in that described
Portal sealing ring is equipped with grease injection hole, and the grease injection hole is to outside the portal in wire brush and portal between wire brush
Inject the grease injection hole of grease.
3. a kind of water-rich sand layer slurry shield according to claim 2 originates portal sealing device, it is characterised in that described
Grease injection hole includes the twice grease injection hole radially set along the portal sealing ring.
4. a kind of water-rich sand layer slurry shield according to claim 2 originates portal sealing device, it is characterised in that described
Portal sealing ring is equipped with pressure of grease table, and the probe of the pressure of grease table is located at wire brush in the outer wire brush portal of the portal
Between.
5. a kind of water-rich sand layer slurry shield according to claim 1 originates portal sealing device, it is characterised in that described
The end face of inwall is equipped with pre-buried inner thread sleeve, and the portal sealing ring is installed by bolt and the pre-buried inner thread sleeve
On the end face of the inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721146547.8U CN207297011U (en) | 2017-09-08 | 2017-09-08 | A kind of water-rich sand layer slurry shield originates portal sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721146547.8U CN207297011U (en) | 2017-09-08 | 2017-09-08 | A kind of water-rich sand layer slurry shield originates portal sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207297011U true CN207297011U (en) | 2018-05-01 |
Family
ID=62445991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721146547.8U Expired - Fee Related CN207297011U (en) | 2017-09-08 | 2017-09-08 | A kind of water-rich sand layer slurry shield originates portal sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207297011U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108979662A (en) * | 2018-08-01 | 2018-12-11 | 中铁第勘察设计院集团有限公司 | Tunnel prefabrication and assembly construction lining cutting splicing structure and its method |
| 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 |
| CN111911172A (en) * | 2020-07-29 | 2020-11-10 | 中铁工程服务有限公司 | Novel pressure regulating self-sealing structure of shield originating receiving 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 |
| CN112302670A (en) * | 2020-10-13 | 2021-02-02 | 中交隧道工程局有限公司 | Slurry shield split starting construction method for water-rich sandy gravel stratum |
| 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 |
-
2017
- 2017-09-08 CN CN201721146547.8U patent/CN207297011U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108979662A (en) * | 2018-08-01 | 2018-12-11 | 中铁第勘察设计院集团有限公司 | Tunnel prefabrication and assembly construction lining cutting splicing structure and its method |
| 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 |
| CN111911172A (en) * | 2020-07-29 | 2020-11-10 | 中铁工程服务有限公司 | Novel pressure regulating self-sealing structure of shield originating receiving tunnel portal |
| CN111911172B (en) * | 2020-07-29 | 2022-07-15 | 中铁工程服务有限公司 | Novel pressure regulating self-sealing structure of shield originating receiving tunnel portal |
| CN112302670A (en) * | 2020-10-13 | 2021-02-02 | 中交隧道工程局有限公司 | Slurry shield split starting construction method for water-rich sandy gravel stratum |
| 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 |
Granted publication date: 20180501 Termination date: 20210908 |
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| CF01 | Termination of patent right due to non-payment of annual fee |