CN201705359U - Tail shield sealed water-proof structure of shield machine - Google Patents
Tail shield sealed water-proof structure of shield machine Download PDFInfo
- Publication number
- CN201705359U CN201705359U CN2010202421746U CN201020242174U CN201705359U CN 201705359 U CN201705359 U CN 201705359U CN 2010202421746 U CN2010202421746 U CN 2010202421746U CN 201020242174 U CN201020242174 U CN 201020242174U CN 201705359 U CN201705359 U CN 201705359U
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- shield
- tail
- water
- tail shield
- seal ring
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Abstract
The utility model relates a tail shield sealed water-proof structure mounted between a tail shield housing of a shield excavation machine and a duct piece assembled tunnel and capable of isolating groundwater from entering a tunnel, which relates to the technical field of the waterproof safety device for shield tunneling construction. The tail shield sealed water-proof structure is characterized in that an emergent inflating seal ring (2) and a rubber sleeve seal ring (3) are mounted at the tail of 3 to 4 coils of steel wire sealing brushes (1) of the shield machine tail shied. The emergent inflating seal ring (2) is adhered to the tail shield housing, and the rubber sleeve seal ring (3) is tightly fixed at the tail of the tail shield housing through a bolt and a press plate. The inflating pressure of the emergent inflating seal ring (2) ranges from 0.6 to 0.8 MPa when large amount of water is leaked due to the damage of the shield tail sealing or the seal is replaced. The utility model has the advantages of high waterproof performance, excellent abrasion resistance, convenient and easy replacement, small safety risk, simple structure, convenient processing and low cost.
Description
Technical field
The utility model is between a kind of shield driving tail shield housing and the pipe sheet assembling moulding tunnel, and isolated underground water enters the tail shield water-tight structure in the tunnel, relates to the waterproof safety device technique field of shield tunnel construction.
Background technology
Shield excavation machine and coupling part, tunnel in the work progress, waterproof measure mainly is: be provided with the wire brush waterproof sealing between tail shield and the moulding tunnel, its hermetically-sealed construction through the special-purpose seal grease of pressure injection, forms the waterproof sealing system by wire brush one.Utilization structure is that 3～4 circle steel wire sealing brushes are installed in the tail shield the most widely.In construction because factors such as structures, installation, use, under the effect of synchronous grouting and muddy water circulatory system pressure, cement mortar can enter in the steel wire sealing brush, cement mortar is fixed to cause the steel wire sealing brush in the tail shield to damage, cause seal failure, cause tail shield water burst to gush sand, equipment and serious consequence such as flooded.Being no more than 300-500m general application life tail shield sealing system will occur and damage and leak, change to handle and to carry out the stratum consolidation improvement, difficulty is big, risk is high, long expense of implementation cycle is high, cause safety, duration, cost equivalent risk to construction, can not satisfy the requirement of modern safety construction.
The utility model content
The purpose of this utility model be design a kind of be used for tail shield sealing have improve steel wire sealing brush application life, water resistance height, abrasion resistance good, be convenient for changing, security risk is little, simple in structure, be convenient to process, cost is low, easy enforcement is changed shield machine tail shield water-tight structure.
The utility model is the afterbody at 3～4 circle steel wire sealing brushes 1, together emergent gas-flow closure circle 2 is installed with rubber cover sealing ring 3.
Specifically as shown in Figure 1, first welded and installed 3～4 circle steel wire sealing brushes 1 in the tail shield, the gas-flow closure circle 2 of will meeting an urgent need again is bonded on the tail shield housing, with bolt and pressing plate rubber is overlapped the afterbody that sealing ring 3 is fastened on tail shield housing at last.
Wherein:
Emergent gas-flow closure circle 2 is mainly used in after steel wire sealing brush 1 damages, when percolating water appears in the tail shield or during the replacing of tail shield steel wire sealing brush 1 needs, by inflation in emergent gas-flow closure circle 2 it is expanded the extruding sealing of the space between tail shield housing and the pipe sheet assembling moulding tunnel, play the effect of water-tight, the method sealing that need not to improve by geology is again handled, and has convenient fast and safely change steel wire sealing brush 1 or the processing of emergent tail shield sealing; Described emergent gas-flow closure circle 2 is made by rubber, and inflation is pressed and is 0.6-0.8Mpa when shield tail bad seals big percolating water occurs or changes sealing;
Rubber cover sealing ring 3 is mainly used in and prevents that muddy water or cement mortar from entering in the steel wire sealing brush 1, plays protection steel wire sealing brush 1 and increases the service life, and prevents to play that seal grease is excessive causes waste.
The utility model water resistance height, abrasion resistance be good, be convenient for changing, security risk is little, simple in structure, be convenient to processing, low, the easy enforcement of cost is changed.
Description of drawings
Fig. 1 tail shield water-tight structure chart
Fig. 2 pneumatic rubber seal loop graph of meeting an urgent need
Fig. 3 rubber cover sealing loop graph
Wherein the emergent gas-flow closure circle of 2-is brushed in the sealing of 1-steel wire
3-rubber cover sealing ring 4-shield driving tail shield
The specific embodiment
Embodiment. this example is the test construction that passes through in transfering natural gas from the west to the east natural gas line Jiujiang in the shield tunnel engineering of the Changjiang river.This length of tunnel 2580m, internal diameter 3080mm, the tunnel passes through gravel layer 1870m, flour sand layer 710m, maximum hydraulic pressure 0.43Mpa.Tail shield water-tight structure as shown in Figure 1.First welded and installed 3～4 circle steel wire sealing brushes 1 in the tail shield, the gas-flow closure circle 2 of will meeting an urgent need again is bonded on the tail shield housing, with bolt and pressing plate rubber is overlapped the afterbody that sealing ring 3 is fastened on tail shield housing at last.
Emergent gas-flow closure circle 2 is inflated to 0.7Mpa shutoff underground water when shield tail bad seals big percolating water occurs or changes sealing.
Pass through in the Yangtze River Tunnel construction in this project, tail shield seal leak water does not take place, brush 1 except normal wear until the sealing of tunnel holing through steel wire, emergent gas-flow closure circle 2, rubber cover sealing ring 3 all stand intact, do not find that muddy water and cement mortar enter in the tail shield steel wire sealing brush 1, have played good water-tight effect.
Test by this embodiment; this tail shield water-tight structure; effectively played the effect of protection tail shield steel wire sealing brush; prevent entering of muddy water and cement mortar; prolonged the application life of tail shield steel wire sealing brush; prevent that shield excavation machine from gushing the generation of sand accident at tunneling process tail shield seal leak water and water burst, reduced construction safety risk and shortened the duration.
Claims (3)
1. a shield machine tail shield water-tight structure is characterized in that the afterbody at shield machine tail shield 3～4 circle steel wire sealing brushes (1), together emergent gas-flow closure circle (2) is installed with rubber cover sealing ring (3).
2. a kind of shield machine tail shield water-tight structure according to claim 1 is characterized in that described emergent gas-flow closure circle (2) is bonded on the tail shield housing, and described rubber cover sealing ring (3) is the afterbody that is fastened on tail shield housing with bolt and pressing plate.
3. a kind of shield machine tail shield water-tight structure according to claim 1 is characterized in that described emergent gas-flow closure circle (2) inflation pressure when shield tail bad seals occurs than big percolating water or changes sealing is 0.6-0.8Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202421746U CN201705359U (en) | 2010-06-21 | 2010-06-21 | Tail shield sealed water-proof structure of shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202421746U CN201705359U (en) | 2010-06-21 | 2010-06-21 | Tail shield sealed water-proof structure of shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201705359U true CN201705359U (en) | 2011-01-12 |
Family
ID=43442513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202421746U Expired - Lifetime CN201705359U (en) | 2010-06-21 | 2010-06-21 | Tail shield sealed water-proof structure of shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201705359U (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155237A (en) * | 2011-03-22 | 2011-08-17 | 中建市政建设有限公司 | Device for replacing tail brush in shield tunneling process and construction method thereof |
| CN102242633A (en) * | 2011-07-23 | 2011-11-16 | 中铁十二局集团有限公司 | Method for replacing tail brush in extra large diameter shield driving under high water pressure condition |
| CN102900848A (en) * | 2012-10-26 | 2013-01-30 | 中铁隧道集团有限公司 | Shield tunneling machine under pressure warehouse entry air bag sealing device and method |
| CN102943677A (en) * | 2012-10-24 | 2013-02-27 | 中铁科工集团有限公司 | Manufacturing method for end shield of built-in grout block shield machine |
| CN102996811A (en) * | 2012-11-23 | 2013-03-27 | 上海市机械施工有限公司 | Articulation sealing device and installation method thereof |
| 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 |
| CN104314572A (en) * | 2014-09-17 | 2015-01-28 | 江苏广泓重工设备有限公司 | Construction method for tunnel constructed by two semi-rectangular pipe sections with outer chamfer angles |
| CN105019910A (en) * | 2015-07-27 | 2015-11-04 | 北京市市政四建设工程有限责任公司 | Shield tail sealing device and shield tunneling machine |
| CN105221164A (en) * | 2015-09-22 | 2016-01-06 | 中国石油天然气集团公司 | A kind of sealing tool for deep tunnel slip casting reparation and assemble method |
| CN106801606A (en) * | 2017-03-22 | 2017-06-06 | 中铁工程装备集团有限公司 | The sealing and connecting device of a kind of middle shield and tail shield, shield machine shield body and shield machine |
| CN106907155A (en) * | 2017-03-24 | 2017-06-30 | 山东大学 | The prominent water burst film bag slip casting fast plugging device of shield tail and it is provided with the shield machine of the device |
| CN106968679A (en) * | 2017-03-20 | 2017-07-21 | 中铁十四局集团有限公司 | A kind of high hydraulic pressure tail sealing emergency system |
| CN107091096A (en) * | 2017-05-17 | 2017-08-25 | 中铁工程装备集团盾构制造有限公司 | Replacing options in the main driving seal failure hole of balancing earth-pressure shielding machine under a kind of normal pressure |
-
2010
- 2010-06-21 CN CN2010202421746U patent/CN201705359U/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155237A (en) * | 2011-03-22 | 2011-08-17 | 中建市政建设有限公司 | Device for replacing tail brush in shield tunneling process and construction method thereof |
| CN102155237B (en) * | 2011-03-22 | 2013-03-06 | 中建交通建设集团有限公司 | Device for replacing tail brush in shield tunneling process and construction method thereof |
| CN102242633A (en) * | 2011-07-23 | 2011-11-16 | 中铁十二局集团有限公司 | Method for replacing tail brush in extra large diameter shield driving under high water pressure condition |
| CN102943677A (en) * | 2012-10-24 | 2013-02-27 | 中铁科工集团有限公司 | Manufacturing method for end shield of built-in grout block shield machine |
| CN102943677B (en) * | 2012-10-24 | 2014-08-27 | 中铁科工集团有限公司 | Manufacturing method for end shield of built-in grout block shield machine |
| CN102900848A (en) * | 2012-10-26 | 2013-01-30 | 中铁隧道集团有限公司 | Shield tunneling machine under pressure warehouse entry air bag sealing device and method |
| CN102996811A (en) * | 2012-11-23 | 2013-03-27 | 上海市机械施工有限公司 | Articulation sealing device and installation method thereof |
| 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 |
| CN104314572A (en) * | 2014-09-17 | 2015-01-28 | 江苏广泓重工设备有限公司 | Construction method for tunnel constructed by two semi-rectangular pipe sections with outer chamfer angles |
| CN105019910A (en) * | 2015-07-27 | 2015-11-04 | 北京市市政四建设工程有限责任公司 | Shield tail sealing device and shield tunneling machine |
| CN105221164A (en) * | 2015-09-22 | 2016-01-06 | 中国石油天然气集团公司 | A kind of sealing tool for deep tunnel slip casting reparation and assemble method |
| CN106968679A (en) * | 2017-03-20 | 2017-07-21 | 中铁十四局集团有限公司 | A kind of high hydraulic pressure tail sealing emergency system |
| CN106968679B (en) * | 2017-03-20 | 2019-02-15 | 中铁十四局集团有限公司 | A kind of high hydraulic pressure tail sealing emergency system |
| CN106801606A (en) * | 2017-03-22 | 2017-06-06 | 中铁工程装备集团有限公司 | The sealing and connecting device of a kind of middle shield and tail shield, shield machine shield body and shield machine |
| CN106801606B (en) * | 2017-03-22 | 2023-04-25 | 中铁工程装备集团有限公司 | Sealing connection device for middle shield and tail shield, shield machine shield body and shield machine |
| CN106907155A (en) * | 2017-03-24 | 2017-06-30 | 山东大学 | The prominent water burst film bag slip casting fast plugging device of shield tail and it is provided with the shield machine of the device |
| CN107091096A (en) * | 2017-05-17 | 2017-08-25 | 中铁工程装备集团盾构制造有限公司 | Replacing options in the main driving seal failure hole of balancing earth-pressure shielding machine under a kind of normal pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170322 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: China National Petroleum Corporation Patentee after: China Petroleum Pipeline Bureau Engineering Co., Ltd. Address before: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee before: China National Petroleum Corporation Patentee before: China Petroleum and Natural Gas Pipeline Bureau |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110112 |
|
| CX01 | Expiry of patent term |