CN202645575U - Curtain liquefrozen reinforcement structure for replacing ventral brush in shield tunnel hole - Google Patents
Curtain liquefrozen reinforcement structure for replacing ventral brush in shield tunnel hole Download PDFInfo
- Publication number
- CN202645575U CN202645575U CN 201220252791 CN201220252791U CN202645575U CN 202645575 U CN202645575 U CN 202645575U CN 201220252791 CN201220252791 CN 201220252791 CN 201220252791 U CN201220252791 U CN 201220252791U CN 202645575 U CN202645575 U CN 202645575U
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- Prior art keywords
- shield
- ventral brush
- hole
- jurisdiction
- curtain
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Abstract
The utility model relates to a curtain frozen reinforcement structure and discloses a curtain liquefrozen reinforcement structure for replacing a ventral brush in a shield tunnel hole. The structure comprises a shield shell (1) and a duct piece (9), wherein the shield shell (1) is provided with the shield ventral brush (2); and a frozen tube (5) penetrates through the duct piece (9) so as to be contacted with a frozen body (7). The structure disclosed by the utility model is provided with temperature measuring holes, so that the temperature conditions of all positions can be detected in real time; liquid nitrogen is adopted for freezing and reinforcing a curtain; and the structure has the advantages of high freezing efficiency, environmental friendliness, sanitation and the like.
Description
Technical field
The utility model relates to freezing reinforcing curtain structure, has related in particular to and has changed ventral brush liquid nitrogen frozen reinforcing curtain structure in a kind of shield tunnel hole.
Background technology
At present, increasingly mature along with Shield Construction Technique, the shield structure has outstanding safety, high efficiency and reliability because of it, has been widely used in city underground, the municipal highway tunnel construction, and especially slurry shield is widely used especially in the subaqueous tunnel construction of passing through rivers.In the shield-tunneling construction process, the good situations of the tail sealing performance state of shield structure is the key link that determines shield-tunneling construction personnel, plant equipment and tunnel safety; Therefore in the situation that inefficacy appears in tail sealing, particularly in the subaqueous tunnel, safe and reliable replacing tail sealing how, the reliability of formation consolidation water shutoff around how guaranteeing when tail sealing is changed, it is a problem in the urgent need to address, this not only relates to the safety that tail sealing is changed, and also is to ensure molded tunnel safety and constructor's life security needs.To change what adopt be the brine freezing method to tail sealing in the prior art, and it is after freezing completion, and the waste water of generation can be to environment, and it is low to freeze efficient.
Summary of the invention
It is the brine freezing method that the utility model is changed what adopt for tail sealing in the prior art, it is after freezing completion, the waste water that produces can be to environment, freeze the shortcomings such as efficient is low, provide a kind of employing liquid nitrogen to carry out freezing reinforcing curtain, have the efficient of freezing high, change the ventral brush liquid nitrogen frozen in the shield tunnel hole of the advantages such as environmentally-friendly sanitary and reinforce curtain structure.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
Change the ventral brush liquid nitrogen frozen in the shield tunnel hole and reinforce curtain structure, comprise shield shell-and-tube sheet, described shield shell is provided with the shield ventral brush, and freezing pipe passes the section of jurisdiction and freezes body and contact.
As preferably, also be provided with thermometer hole on the described section of jurisdiction.
As preferably, be provided with the grouting plate between described freezing pipe and the shield shell.
As preferably, the downside of described section of jurisdiction arranges the cold drawing insulation layer.
As preferably, described thermometer hole runs through the section of jurisdiction and freezes body, is provided with point for measuring temperature in the thermometer hole.
The utility model is owing to having adopted above technical scheme, have significant technique effect: the utility model is by arranging thermometer hole, and the temperature conditions of each position of detection that can be real-time adopts liquid nitrogen to carry out freezing reinforcing curtain, has the efficient of freezing high, the advantages such as environmentally-friendly sanitary.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
The toponym that each number designation refers in the above accompanying drawing is as follows: 1-shield shell, 2-shield ventral brush, 3-thermal insulation bar, 4-thermometer hole, 5-freezing pipe, 6-cold drawing insulation layer, 7-freeze body, 8-grouting plate, 9-section of jurisdiction, 41-point for measuring temperature wherein.
The specific embodiment
1 embodiment is described in further detail the utility model below in conjunction with accompanying drawing:
Embodiment 1
Change the ventral brush liquid nitrogen frozen in the shield tunnel hole and reinforce curtain structure, as shown in Figure 1, comprise shield shell 1 and section of jurisdiction 9, described shield shell 1 is provided with shield ventral brush 2, and freezing pipe 5 passes section of jurisdiction 9 and freezes body 7 and contact.After freezing pipe 5 fills nitrogen, begin fast cooling with the frozen region of freezing pipe 5 contact portions and form and freeze body 7.
Also be provided with thermometer hole 4 on the section of jurisdiction 9.Thermometer hole 4 runs through section of jurisdiction 9 and freezes body 7, is provided with point for measuring temperature 41 in the thermometer hole 4.Section of jurisdiction 9 is provided with thermometer hole 4, can carry out real-time detection to the temperature at each position on the section of jurisdiction 9, thermometer hole 4 extend into and freezes in the body 7, and thermometer hole 4 is interior to arrange a plurality of points for measuring temperature 41 along thermometer hole 4 length directions, thereby can monitor the temperature of freezing body 7 and section of jurisdiction 7 diverse locations.
Be provided with grouting plate 8 between freezing pipe 5 and the shield shell 1.Grouting plate 8 is fixed by bolts on the shield shell 1, the only import but no export slurries, and the downward slurries that prevent enter ventral brush grease chamber, and the slurries that prevent that make progress channel to shield body front.
The downside of section of jurisdiction 9 arranges cold drawing insulation layer 6.By cold drawing insulation layer 6 is set, when freezing pipe 5 fills nitrogen and freezes, can play to freezing body 7 effect of insulation.
In a word, the above only is preferred embodiment of the present utility model, and all equalizations of doing according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (5)
1. change the ventral brush liquid nitrogen frozen in the shield tunnel hole and reinforce curtain structure, comprise shield shell (1) and section of jurisdiction (9), it is characterized in that: described shield shell (1) is provided with shield ventral brush (2), and freezing pipe (5) passes section of jurisdiction (9) and freezes body (7) and contact.
2. change the ventral brush liquid nitrogen frozen in the shield tunnel according to claim 1 hole and reinforce curtain structure, it is characterized in that: also be provided with thermometer hole (4) on described section of jurisdiction (9).
3. change the ventral brush liquid nitrogen frozen in the shield tunnel according to claim 1 hole and reinforce curtain structure, it is characterized in that: be provided with grouting plate (8) between described freezing pipe (5) and the shield shell (1).
4. change the ventral brush liquid nitrogen frozen in the shield tunnel according to claim 1 hole and reinforce curtain structure, it is characterized in that: the downside of described section of jurisdiction (9) arranges cold drawing insulation layer (6).
5. change the ventral brush liquid nitrogen frozen in the shield tunnel according to claim 2 hole and reinforce curtain structure, it is characterized in that: described thermometer hole (4) runs through section of jurisdiction (9) and freezes body (7), is provided with point for measuring temperature (41) in the thermometer hole (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220252791 CN202645575U (en) | 2012-05-31 | 2012-05-31 | Curtain liquefrozen reinforcement structure for replacing ventral brush in shield tunnel hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220252791 CN202645575U (en) | 2012-05-31 | 2012-05-31 | Curtain liquefrozen reinforcement structure for replacing ventral brush in shield tunnel hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202645575U true CN202645575U (en) | 2013-01-02 |
Family
ID=47414695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220252791 Expired - Fee Related CN202645575U (en) | 2012-05-31 | 2012-05-31 | Curtain liquefrozen reinforcement structure for replacing ventral brush in shield tunnel hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202645575U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075161A (en) * | 2013-01-16 | 2013-05-01 | 中铁隧道集团有限公司 | Quick underground obstacle clearing method for slurry shield construction |
| CN105840202A (en) * | 2016-03-29 | 2016-08-10 | 中铁时代建筑设计院有限公司 | Shield tail brush replacement annular freezing reinforcing water seal structure and construction method thereof |
| CN108240225A (en) * | 2018-02-11 | 2018-07-03 | 南京林业大学 | The freezing system of shield drive end unit and exchanging shield ventral brush method |
| WO2018188531A1 (en) * | 2017-04-10 | 2018-10-18 | 中铁十四局集团有限公司 | Slurry shield tail brush replacement safety protection device and method using liquid nitrogen freezing |
| CN108678774A (en) * | 2018-06-28 | 2018-10-19 | 广东华隧建设集团股份有限公司 | A kind of section of jurisdiction with freezing function |
| CN108979649A (en) * | 2018-09-07 | 2018-12-11 | 中铁十二局集团有限公司 | Shield machine shield tail emergency freezing system and method |
-
2012
- 2012-05-31 CN CN 201220252791 patent/CN202645575U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075161A (en) * | 2013-01-16 | 2013-05-01 | 中铁隧道集团有限公司 | Quick underground obstacle clearing method for slurry shield construction |
| CN105840202A (en) * | 2016-03-29 | 2016-08-10 | 中铁时代建筑设计院有限公司 | Shield tail brush replacement annular freezing reinforcing water seal structure and construction method thereof |
| CN105840202B (en) * | 2016-03-29 | 2019-09-03 | 中铁时代建筑设计院有限公司 | Annular consolidation by freezing water sealing structure and its construction method when a kind of exchanging shield ventral brush |
| WO2018188531A1 (en) * | 2017-04-10 | 2018-10-18 | 中铁十四局集团有限公司 | Slurry shield tail brush replacement safety protection device and method using liquid nitrogen freezing |
| CN108240225A (en) * | 2018-02-11 | 2018-07-03 | 南京林业大学 | The freezing system of shield drive end unit and exchanging shield ventral brush method |
| CN108678774A (en) * | 2018-06-28 | 2018-10-19 | 广东华隧建设集团股份有限公司 | A kind of section of jurisdiction with freezing function |
| CN108979649A (en) * | 2018-09-07 | 2018-12-11 | 中铁十二局集团有限公司 | Shield machine shield tail emergency freezing system and method |
| CN108979649B (en) * | 2018-09-07 | 2020-03-17 | 中铁十二局集团有限公司 | Emergency freezing system and method for shield tail of shield machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20210531 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |