CN203082217U - Emergency sealing device for shield water bursting accident emergency rescuing - Google Patents
Emergency sealing device for shield water bursting accident emergency rescuing Download PDFInfo
- Publication number
- CN203082217U CN203082217U CN 201320037774 CN201320037774U CN203082217U CN 203082217 U CN203082217 U CN 203082217U CN 201320037774 CN201320037774 CN 201320037774 CN 201320037774 U CN201320037774 U CN 201320037774U CN 203082217 U CN203082217 U CN 203082217U
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- China
- Prior art keywords
- wedge
- arc
- shaped
- emergency
- sealing
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses an emergency sealing device for shield water bursting accident emergency rescuing. The emergency sealing device is of a ring structure composed of a plurality of arc wedge-shaped blocks; each arc wedge-shaped block comprises an axial wedge-shaped sealing block, lateral wedge-shaped sealing blocks and a radial wedge-shaped sealing block, the lateral wedge-shaped sealing blocks are located on two sides of the axial wedge-shaped sealing block, and the radial wedge-shaped sealing block is located between the lateral wedge-shaped sealing blocks; and each arc wedge-shaped block is composed of an arc seat and an arc rubber sealing piece which is located on one side of the arc seat and provided with a wedge-shaped cross section, a wedge-shaped edge is arranged in the axial direction of an arc rubber sealing piece on the axial wedge-shaped sealing block, and the lateral wedge-shaped sealing blocks are respectively provided with a bevel edge matched with the wedge-shaped edge of the arc rubber sealing piece on the axial wedge-shaped sealing block. Partitioning snatching, assembling and disassembling can be carried out on the emergency sealing device through a segment erector, and the emergency sealing device has the advantages of being simple in structure, convenient to assemble, good in sealing performance, strong in pressure bearing performance and the like, and can effectively reduce potential safety hazards of shield construction.
Description
Technical field
The utility model belongs to the seal arrangement of shield structure, is specifically related to a kind of emergency seal assembly that shield structure water burst accident is speedily carried out rescue work that is used for.
Background technique
In the subterranean tunnel construction project, shield method is because of its safety and the main flow that efficiently becomes present construction, shield machine is kept apart main frame and outside stratum and form the operating space of the conveying of a confession dregs, equipment operation and pipe sheet assembling operation etc. in the work progress by cutterhead, shield shell-and-tube sheet, therefore, the quality of the sealability between the three directly influences the progress of engineering.Though have hinge segment sealing, the sealing of shield ventral brush etc. to have the seal arrangement of certain sealability in shield structure self design.The sealing function that shield structure self is provided with when the shield structure runs into bad working environments in work progress immeasurable damage sequence will occur in case lose efficacy, especially the shield tail seals the most key and breaks down easily, the sealing of shield tail mainly is to seal by the shield tail sealing brush injection seal grease of shield endnote pulpboard to the band Steel Tendon, in use the shield ventral brush very easily weares and teares, often take place because of changing the untimely situation of shield tail infiltration that causes, present solution is to use sponge, the packing of the broken class of cloth is filled in sealing in the shield tail gap, inefficiency and only can processing pressure low, few operating mode seeps water.If the great water burst of pressure often occurring in the shield structure at the bottom of the river, during subsea construction, can not solve the water burst problem at short notice, water will be filled shield machine inside.Consequence may cause that the shield structure is scrapped, workmen's injures and deaths, need relocate or the like in last tunnel, and economic cost is big, influence is extremely abominable.Do not solve foregoing problems in the shield-tunneling construction, will cause whole engineering to have great construction safety hidden danger.
The model utility content
The purpose of this utility model provides that a kind of simple in structure, installation rate is fast, good airproof performance, and bearing pressure is strong, safe is used for the emergency seal assembly that shield structure water burst accident is speedily carried out rescue work.
Realize that the technological scheme that the utility model purpose adopts is:
The utility model provides is used for the emergency seal assembly that shield structure water burst accident is speedily carried out rescue work, the ring structure that several arc wedge-shaped blockss of serving as reasons are formed; Described arc wedge-shaped blocks comprises axial wedge-type seal piece and at axially the side direction wedge-type seal piece and the radial wedge sealing block between side direction wedge-type seal piece of wedge-type seal piece both sides; Described arc wedge-shaped blocks is the arc rubber seal composition of wedge shape by arc seat and the cross section that is positioned at arc seat one side, arc rubber seal on the wherein said axial wedge-type seal piece is provided with the wedge shape limit in the axial direction, side direction wedge-type seal piece be provided with axial wedge-type seal piece on the hypotenuse that matches of the wedge shape limit of arc rubber seal.
Circle radius is consistent with circle radius in the section of jurisdiction in the described ring structure, and exradius is less than or equal to shield tail pipe body internal diameter.
Described each arc wedge-shaped blocks is provided with the connection set that cooperates with duct piece assembling machine.
The front end of the arc rubber seal on the described arc wedge-shaped blocks is provided with the lip structure, and rear inside is provided with step.
The utility model can carry out piecemeal snatch, installation and removal by duct piece assembling machine, forms ring packing together between section of jurisdiction and shield tail pipe body, has simple in structure, easy for installation, good airproof performance, advantage such as bearing pressure is strong can effectively reduce the potential safety hazard of shield-tunneling construction.
The utility model is described in further detail below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of axial wedge-type seal piece in the utility model.
Fig. 3 is the structural representation of side direction wedge-type seal piece in the utility model.
Fig. 4 is the structural representation of radial wedge sealing block in the utility model.
Fig. 5 is a scheme of installation of the present utility model.
Fig. 6 is an I place enlarged view among Fig. 5.
Embodiment
Referring to Fig. 1-Fig. 5, the utility model provides is used for the ring structure of emergency seal assembly for being made up of 6 arc wedge-shaped blockss that shield structure water burst accident is speedily carried out rescue work; Described arc wedge-shaped blocks comprises 1 axial wedge-type seal piece 1 and at axially the side direction wedge- type seal piece 2,6 and the radial wedge sealing block between side direction wedge-type seal piece 2,63,4,5 of wedge-type seal piece 1 both sides; All arc wedge-shaped blockss 1-6 are arc rubber seal 7 compositions of wedge shape by the arc seat 8 of steel structure with the cross section that is positioned at arc seat one side, arc rubber seal 7 on the wherein axial wedge-type seal piece 1 is provided with wedge shape limit 702 in the axial direction, side direction wedge- type seal piece 2,6 be provided with axial wedge-type seal piece 1 on the hypotenuse 705 that matches of the wedge shape limit 702 of arc rubber seal 7, the structure of radial wedge sealing block 3,4,5 is identical; Each arc wedge-shaped blocks 1-6 is provided with the connection set that cooperates with bolt on the duct piece assembling machine 10 screw 703 is installed, so that the installation of seal arrangement; The front end of the arc rubber seal 7 on each arc wedge-shaped blocks 1-6 is provided with lip structure 701, and the rear inside of the arc rubber seal 7 on the arc wedge-shaped blocks 2-6 is provided with the rear inside of the arc rubber seal 7 on the step 704(arc wedge-shaped blocks 1 also can establish step 704).Circle radius is consistent with circle radius in the section of jurisdiction in the described ring structure, and exradius is less than or equal to shield tail pipe body internal diameter, can adjust the radian of side direction wedge-type seal piece, the radian and the quantity of radial wedge sealing block according to actual conditions.
The utility model is the equipment of speedily carrying out rescue work that is used for the shield tail water burst burst accident that abominable geological condition shield machine sealing actual effect causes, construction runs into abominable geological condition and can not satisfy under construction sealability or the failure conditions when the seal arrangement of shield structure self, water is poured in a large number from shield tail gap, at this moment can utilize the utility model seal arrangement to carry out the sealing operation.As shown in Figure 5, be provided with shield tail sealing brush 13 in the shield tail, installation screw 703 on arc seat 8 on the bolt of shield structure inner space built-in duct piece assembling machine 10 by the shield structure and the arc wedge-shaped blocks tightens, duct piece assembling machine snatch radial wedge sealing block 3,4,5 is to the position that the section of jurisdiction is installed, advance oil cylinder 9 to stretch out to withstand arc seat 8 and at first the inside, shield tail gap is entered in 3,4,5 ejections of radial wedge sealing block, make arc rubber seal 7 be close to section of jurisdiction 11 and shield tail pipe body 12, the step 704 of its rear end is close to the end of section of jurisdiction 11.Repetitive operation is installed side direction wedge- type seal piece 2,6 and axial wedge-type seal piece 1 respectively by duct piece assembling machine 10, form annular wedge-type seal together, because hydraulic pressure constantly acts on lip structure 701 positions of arc rubber seal 7 front ends, lip structure 701 positions are owing to section of jurisdiction and the shield tail pipe body 12 of pressurized toward both sides compresses, play certain seal action, (referring to Fig. 5).
Side direction wedge- type seal piece 2,6 must be installed with axial wedge-type seal piece 1 back, and mounting type is: side direction wedge-type seal piece 6 → axial wedge-type seal piece 1 → side direction wedge-type seal piece 2.Axially the main action principle of wedge-type seal piece 1 is to utilize the characteristics of its arc rubber seal 7 axial wedge shapes to come the closely surface of contact between each arc wedge-shaped blocks, impels between each arc wedge-shaped blocks arc rubber seal surface of contact owing to lateral extrusion reaches sealing effect.Front end at arc wedge-shaped blocks arc rubber seal is provided with the lip structure, can utilize its lip structure to contact with cylindrical shell, section of jurisdiction in pressure-bearing, weakens the compacting pressure of back wedge-shaped blocks and section of jurisdiction and cylindrical shell.
The utility model seal arrangement is squeezed between section of jurisdiction and the shield tail pipe body, thereby shield tail gap and shield structure inner space are kept apart stops the water of constantly pouring into shield structure inner space by shield tail gap, in conjunction with shield structure shield endnote slurry pipeline thereby the purpose that reaches final sealing is filled in the gap of section of jurisdiction and hole wall with slip casting simultaneously, come piecemeal snatch removing seal by duct piece assembling machine when water burst in the shield structure drains with water burst is dangerous after removing, the shield structure can recover normal driving.
Claims (4)
1. one kind is used for the emergency seal assembly that shield structure water burst accident is speedily carried out rescue work, the ring structure that several arc wedge-shaped blockss that it is characterized in that serving as reasons are formed; Described arc wedge-shaped blocks comprises axial wedge-type seal piece and at axially the side direction wedge-type seal piece and the radial wedge sealing block between side direction wedge-type seal piece of wedge-type seal piece both sides; Described arc wedge-shaped blocks is the arc rubber seal composition of wedge shape by arc seat and the cross section that is positioned at arc seat one side, arc rubber seal on the wherein said axial wedge-type seal piece is provided with the wedge shape limit in the axial direction, side direction wedge-type seal piece be provided with axial wedge-type seal piece on the hypotenuse that matches of the wedge shape limit of arc rubber seal.
2. according to claim 1ly be used for the emergency seal assembly that shield structure water burst accident is speedily carried out rescue work, it is characterized in that circle radius is consistent with circle radius in the section of jurisdiction in the described ring structure, exradius is less than or equal to shield tail pipe body internal diameter.
3. according to claim 1 and 2ly be used for the emergency seal assembly that shield structure water burst accident is speedily carried out rescue work, it is characterized in that described each arc wedge-shaped blocks is provided with the connection set that cooperates with duct piece assembling machine.
4. according to claim 3ly be used for the emergency seal assembly that shield structure water burst accident is speedily carried out rescue work, it is characterized in that the front end of the arc rubber seal on the described arc wedge-shaped blocks is provided with the lip structure, rear inside is provided with step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320037774 CN203082217U (en) | 2013-01-24 | 2013-01-24 | Emergency sealing device for shield water bursting accident emergency rescuing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320037774 CN203082217U (en) | 2013-01-24 | 2013-01-24 | Emergency sealing device for shield water bursting accident emergency rescuing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203082217U true CN203082217U (en) | 2013-07-24 |
Family
ID=48828058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320037774 Withdrawn - After Issue CN203082217U (en) | 2013-01-24 | 2013-01-24 | Emergency sealing device for shield water bursting accident emergency rescuing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203082217U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062414A (en) * | 2013-01-24 | 2013-04-24 | 中国铁建重工集团有限公司 | Emergency sealing device for shield water burst accident rescue |
-
2013
- 2013-01-24 CN CN 201320037774 patent/CN203082217U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062414A (en) * | 2013-01-24 | 2013-04-24 | 中国铁建重工集团有限公司 | Emergency sealing device for shield water burst accident rescue |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130724 Effective date of abandoning: 20150415 |
|
| RGAV | Abandon patent right to avoid regrant |