CN206722834U - Water-stopping steel ring structure is aided in when a kind of shield receives - Google Patents
Water-stopping steel ring structure is aided in when a kind of shield receives Download PDFInfo
- Publication number
- CN206722834U CN206722834U CN201720588844.1U CN201720588844U CN206722834U CN 206722834 U CN206722834 U CN 206722834U CN 201720588844 U CN201720588844 U CN 201720588844U CN 206722834 U CN206722834 U CN 206722834U
- Authority
- CN
- China
- Prior art keywords
- ring
- portal
- sealing
- water
- steel loop
- 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
The utility model provides when a kind of shield receives and aids in water-stopping steel ring structure.The water-stopping steel ring structure includes being arranged on the cylindric pre-buried portal ring at arrival portal, it is characterised in that：Also include the cylindric sealing steel loop for being welded on pre-buried portal ring inner ring surface, the sealing steel loop is spliced by polylith curved plate, and every piece of curved plate outer shroud edge is welded on the inner ring surface of pre-buried portal ring, and baffle plate is provided with each seam crossing；Polylith baffle plate is arranged at the back side of sealing steel loop, and the outer ledge of every piece of baffle plate is welded on the inner ring surface of pre-buried portal ring, it is filled with spongy layer between every piece of baffle plate and sealing steel loop, and by injecting shield tail grease by spongy layer fixing seal between baffle plate and sealing steel loop.The utility model ensure that the sealing effectiveness between shield body and portal, and whole sealing structure construction is simple, cost are low, and completely can seal slurries, good sealing effect, and whole work progress is easy safely.
Description
Technical field
A kind of shield method tunnel construction water sealing structure is the utility model is related to, specifically a kind of shield aids in sealing when receiving
Steel loop structure.
Background technology
In current city underground transport development, shield method is quick because constructing, and the influence to ground is small and obtains extensively
Application.
Existing conventional portal sealing is the sealing device using folding turnover panel and cord rubber structure form.And in reality
During the use of border, due to sealing can not be brought into close contact between cord rubber and shield shell completely, therefore portal can not be completely enclosed and gushed
Water, if at portal during slip casting, being also inevitably present spillage phenomenon.When water burst is larger or the time is longer, then easily
Trigger serious accident.
The content of the invention
The utility model provides a kind of shield according to the deficiencies in the prior art and receives auxiliary water-stopping steel ring structure, the sealing knot
Structure good sealing effect, cost are low, and its construction method is simple, easy.
Technical scheme provided by the utility model：A kind of shield aids in water-stopping steel ring structure, including installation when receiving
Cylindric pre-buried portal ring at arrival portal, it is characterised in that：Also include being welded on pre-buried portal ring inner ring surface
Cylindric sealing steel loop, the sealing steel loop are spliced by polylith curved plate, every piece of curved plate outer shroud edge welding
On the inner ring surface of pre-buried portal ring, and it is in close contact between adjacent curved plate, and baffle plate is provided with each seam crossing；
Polylith baffle plate is arranged at the back side of sealing steel loop, and the outer ledge of every piece of baffle plate is welded on pre-buried portal ring
On inner ring surface, and the seam between two adjacent curved plates is blocked completely, filled out between every piece of baffle plate and sealing steel loop
Filled with spongy layer, and by injecting shield tail grease by spongy layer fixing seal between baffle plate and sealing steel loop.
The utility model preferably technical scheme：The sealing steel loop is to use arc of the polylith width for 200-300mm
Steel plate splicing forms, wherein deep floor is provided with the curved plate back side in 3 points to 9 regions of sealing steel loop, every piece of reinforcement
Floor is right angled triangle steel plate, and two right-angle sides connect with curved plate and pre-buried portal boxing respectively.
The utility model preferably technical scheme：3 points of the sealing steel loop is to more than nine point positions half ring region curved plates
Width it is bigger 0.03-0.06m to the curved plate width of half ring region below nine point positions than 3 points.
The utility model preferably technical scheme：The baffle plate is using width and the width one of curved plate (2-1)
The curved plate of cause, its length are 70-90mm.
The utility model preferably technical scheme：The water-stopping steel boxing is connected on apart from arrival portal mouth 600mm's
Position.
Sealing steel loop inner ring described in the utility model is less than shield machine shield body external diameter, when the shield body of shield machine is from arc-shaped steel
When plate passes through, turned up in the part of the external force effect arc lower steel plate seam seam of shield machine, pass through repair welding between two steel plates
Fritter steel plate forms sealing.
The utility model ensure that the sealing effectiveness between shield body and portal, and the construction method letter of whole sealing structure
List, cost are relatively low, and completely can seal slurries, good sealing effect, and whole work progress is easy safely.
Brief description of the drawings
Fig. 1 is positive structure schematic of the present utility model；
Fig. 2 is AA ' sectional views in Fig. 1；
Fig. 3 is BB ' sectional views in Fig. 1；
Fig. 4 is CC ' sectional views in Fig. 1；
Fig. 5 is structure schematic diagram of the present utility model.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.Such as a kind of Fig. 1 to shield described in Fig. 5
Water-stopping steel ring structure, including the cylindric pre-buried portal ring 1 at arrival portal are aided in during reception, its side of entering the station is
Front, it is characterised in that：Also include the cylindric sealing steel loop 2 for being welded on the pre-buried inner ring surface of portal ring 1, sealing steel loop 2 welds
Apart from arrival portal mouth 600mm position；It by polylith width is 200-300mm curved plates 2- that the sealing steel loop, which is,
1 is spliced, wherein positioned at 2 three points of curved plate width to more than nine point positions half ring regions of sealing steel loop than 3 points to 9 points
The big 0.03-0.06m of curved plate width of following half ring region in position；Every piece of curved plate 2-1 outer shrouds edge is welded on pre-buried hole
On the inner ring surface of knocker 1, and it is in close contact, does not weld between adjacent curved plate 2-1, and seam is provided with each seam 2-2
Gap baffle plate 3, for the baffle plate 3 using the width curved plate consistent with curved plate 2-1 width, its length is 70-
90mm.As shown in figure 5, polylith baffle plate 3 is arranged at the back side (side i.e. opposite with pressure surface) of sealing steel loop 2, and
The outer ledge of every piece of baffle plate 3 is welded on the inner ring surface of pre-buried portal ring 1, and by between two adjacent curved plate 2-1
Seam 2-2 block completely, spongy layer 4 is filled between every piece of baffle plate 3 and sealing steel loop 2, and by injecting shield tail
Grease is by the fixing seal of spongy layer 4 between baffle plate 3 and sealing steel loop 2.
There can be very big pressure to the sealing steel loop of lower section during due to technique on shield machine's station-crossing, in order to increase its intensity, such as Fig. 3 institutes
Show, be provided with deep floor 5 at the curved plate 2-1 back sides in 2 three points to 9 regions of sealing steel loop, every piece of deep floor 5 is straight
Angle triangular steel plate, two right-angle sides weld with curved plate 2-1 and pre-buried portal ring 1 respectively.
Embodiment, there is infiltration phenomenon in inspecting hole before the shield reception of certain construction work, due between cord rubber and shield shell
It can not be fully sealed, be inevitably present spillage phenomenon during slip casting at portal；In order to reduce cost, and avoid noting at portal
Occur the phenomenon of spillage during slurry, portal sealing is received to reach to shield using structure of the present utility model, and and shield grouting
Common construction, can effectively control shield duct piece rear water, ensure the safety that shield receives.
Shield machine synchronous grouting in this implementation uses business inert slurry, slurry consistency 150, setting time 13h.
Slurries and traditional cement mortar slurries difference such as table 1, the denseness of its various material is big, and (small show is denseness for denseness digital
Greatly)：
The synchronous grouting raw material contrast table of table 1
The Specific construction process of the present embodiment is as follows：
(1) before shield machine arrives at portal ground-connecting-wall, the welding of sealing steel loop 2 is carried out in advance, it is pre- in pre-buried portal steel loop
Every piece of curved plate 2-1 of welding sealing steel loop 2 is put in positioning, and in 2 three points of sealing steel loop and the arc of nine point position region below
Deep floor 5 is welded at the steel plate back side, is bonded but does not weld between adjacent curved plate 2-1, gap is filled out with baffle plate 3 in inner side
Mend；Ten one points of top steel plate welds again to some positions after portal cuts 1/5th；
(2) shield machine normal slip casting before cutterhead arrives at ground-connecting-wall, after arriving at ground wall, note dual slurry, two fluid grouting are shut down
Cyclization is needed, synchronous grouting is as full as possible, hereafter starts to abolish portal；
(3) cutterhead dallies, and screw machine goes out the soil body in empty native storehouse, after cutterhead abolishes portal, has cleared up dregs, shield machine pushes away
Enter to start upper reception bracket；After shield main frame has 2/3rds to spill portal cord, shut down, continue slip casting, after slurries are full,
Reply and promote, shield machine host residue 50cm or so is that shutdown slip casting is full to slurries again in portal cord；
(4) shield machine is moved on, and bracket is received to main frame is completely upper；If curved plate is in construction in later period portal ring beam
Construction is influenceed, then is cut off.
Claims (5)
- Water-stopping steel ring structure is aided in when 1. a kind of shield receives, including the cylindric pre-buried portal at arrival portal Ring (1), it is characterised in that：Also include the cylindric sealing steel loop (2) for being welded on pre-buried portal ring (1) inner ring surface, the sealing Steel loop is spliced by polylith curved plate (2-1), and every piece of curved plate (2-1) outer shroud edge is welded on pre-buried portal ring (1) on inner ring surface, and it is in close contact between adjacent curved plate (2-1), and baffle plate is provided with each seam (2-2) place (3)；Polylith baffle plate (3) is arranged at the back side of sealing steel loop (2), and the outer ledge welding of every piece of baffle plate (3) Blocked completely on the inner ring surface of pre-buried portal ring (1), and by the seam (2-2) between two adjacent curved plates (2-1), every Spongy layer (4) is filled between block baffle plate (3) and sealing steel loop (2), and it is by injecting shield tail grease that spongy layer (4) is solid Surely it is sealed between baffle plate (3) and sealing steel loop (2).
- 2. a kind of shield according to claim 1 aids in water-stopping steel ring structure when receiving, it is characterised in that：The water-stopping steel Ring (2) is to use polylith width to be spliced for 200-300mm curved plate, wherein in (2) three points to 9 points of sealing steel loop Curved plate (2-1) back side in region is provided with deep floor (5), and every piece of deep floor (5) is right angled triangle steel plate, two right angles Welded respectively with curved plate (2-1) and pre-buried portal ring (1) on side.
- 3. a kind of shield according to claim 1 or 2 aids in water-stopping steel ring structure when receiving, it is characterised in that：It is described to stop (2) three points of width to more than nine point positions half ring region curved plates of water steel loop are than 3 points to the arc of half ring region below nine point positions The big 0.03-0.06m of shape steel plate width.
- 4. a kind of shield according to claim 1 or 2 aids in water-stopping steel ring structure when receiving, it is characterised in that：The seam For gap baffle plate (3) using the width curved plate consistent with the width of curved plate (2-1), its length is 70-90mm.
- 5. a kind of shield according to claim 1 or 2 aids in water-stopping steel ring structure when receiving, it is characterised in that：It is described to stop Water steel loop (2) is welded on apart from arrival portal mouth 600mm position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720588844.1U CN206722834U (en) | 2017-05-24 | 2017-05-24 | Water-stopping steel ring structure is aided in when a kind of shield receives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720588844.1U CN206722834U (en) | 2017-05-24 | 2017-05-24 | Water-stopping steel ring structure is aided in when a kind of shield receives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206722834U true CN206722834U (en) | 2017-12-08 |
Family
ID=60511912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720588844.1U Expired - Fee Related CN206722834U (en) | 2017-05-24 | 2017-05-24 | Water-stopping steel ring structure is aided in when a kind of shield receives |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206722834U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915705A (en) * | 2018-08-09 | 2018-11-30 | 中铁局集团有限公司 | A kind of baffle grouting construction method blocked for shield export & import leak |
| CN109386293A (en) * | 2018-12-28 | 2019-02-26 | 中铁隧道集团三处有限公司 | The sealed reception construction method of large section rectangular top pipe |
| CN109931068A (en) * | 2018-11-21 | 2019-06-25 | 上海市基础工程集团有限公司 | Double-layer plate sandwich antipriming for pressure-bearing rich water containing shield in layer of sand |
| 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 |
-
2017
- 2017-05-24 CN CN201720588844.1U patent/CN206722834U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915705A (en) * | 2018-08-09 | 2018-11-30 | 中铁局集团有限公司 | A kind of baffle grouting construction method blocked for shield export & import leak |
| CN108915705B (en) * | 2018-08-09 | 2019-10-22 | 中铁一局集团有限公司 | A kind of baffle grouting construction method blocked for shield export & import leak |
| CN109931068A (en) * | 2018-11-21 | 2019-06-25 | 上海市基础工程集团有限公司 | Double-layer plate sandwich antipriming for pressure-bearing rich water containing shield in layer of sand |
| CN109386293A (en) * | 2018-12-28 | 2019-02-26 | 中铁隧道集团三处有限公司 | The sealed reception construction method of large section rectangular top pipe |
| 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 |
| 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 |
| CN110924992A (en) * | 2019-12-17 | 2020-03-27 | 曹文 | Shield tunnel portal combined elastic water-stop arc-shaped steel plate 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: 20171208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |