CN106869950B - Shield tail with refrigerating plant - Google Patents
Shield tail with refrigerating plant Download PDFInfo
- Publication number
- CN106869950B CN106869950B CN201710126744.1A CN201710126744A CN106869950B CN 106869950 B CN106869950 B CN 106869950B CN 201710126744 A CN201710126744 A CN 201710126744A CN 106869950 B CN106869950 B CN 106869950B
- Authority
- CN
- China
- Prior art keywords
- cooling pipe
- shield tail
- pipe
- tail shell
- shield
- 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.)
- Active
Links
- 238000001816 cooling Methods 0.000 claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 239000002826 coolant Substances 0.000 claims abstract description 11
- 238000007710 freezing Methods 0.000 claims abstract description 11
- 230000008014 freezing Effects 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 238000007569 slipcasting Methods 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 229920002521 macromolecule Polymers 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 238000005553 drilling Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of shield tails with refrigerating plant, it includes shield tail shell, it further includes at least one cooling pipe being arranged on the shield tail shell, the cooling pipe has a plurality of, and every cooling pipe includes at least one interior for being opened in shield tail shell and outlet is located at the internal pipeline on shield tail inner sidewall and freezing mechanism for being passed through from coolant liquid to cooling pipe.Cooling pipe is not necessarily to drilling, wasting time on section of jurisdiction after being integrated on shield tail shell, simplifies the structure of cooling pipe, does not influence the intensity of tunnel duct piece, No leakage, the danger gushed.
Description
Technical field
The present invention relates to a kind of shield machine, in particular to a kind of shield tail with refrigerating plant.
Background technique
Shield machine due to abrasion etc., needs replacing shield machine shield tail sealing brush in high water-enriched layer long distance construction.
Shield machine generally has 3 ~ 4 shield tail brushes, generally only replaces innermost shield tail brush.Replacement shield tail brush needs to be pushed forward shield machine is past
Into a distance, and remove an endless tube piece.And in high water rich strata since external water pressure is higher, directly replacement shield tail is brushed with very
Big risk, it is necessary to not gushed using specific process guarantee, the risks such as spillage.Therefore, liquid nitrogen freezing is in replacement shield tail
It is a kind of comparison conventional construction method when brush.Existing liquid nitrogen freezing is to bore one on the section of jurisdiction of shield tail rear portion certain distance
Ring injection hole, then the devices such as circuit lines are installed.Entire exchanging shield ventral brush is completed to complete and then blocked.
The prior art has the disadvantage that: big to section of jurisdiction drilling construction difficulty in 1. tunnels, the period is long, needs drilling machine etc. mating
Equipment；2. it is very big to the destructiveness of section of jurisdiction to drill on section of jurisdiction, section of jurisdiction intensity is influenced；3. mud etc. does not freeze also when drilling,
It is likely to occur and acutely gushs and reveal, risk is very high；4. each hole requires the fixed liquid nitrogen injection device of special device, structure
It is complicated；5. in the assembled section of jurisdiction completed, pre-buried freezing pipeline, difficulty of construction are very big again；6. replacement shield tail brush all needs every time
Will drilling and pre-buried pipeline on tunnel duct piece again, construction cost is very high, the period is also very long.
Summary of the invention
The object of the present invention is to provide a kind of process for being integrated with cooling pipe to simplified shield tail brush when while reducing more
Change the shield tail with refrigerating plant of risk.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: a kind of shield tail with refrigerating plant comprising shield
Tail shell, it further includes at least one cooling pipe being arranged on the shield tail shell, the cooling pipe have it is a plurality of, every
Cooling pipe includes the internal pipeline of at least one interior for being opened in shield tail shell and outlet on shield tail inner sidewall
And the freezing mechanism for being passed through coolant liquid into cooling pipe.
Optimization, every cooling pipe further includes that a plurality of external pipe along the distribution of shield tail shell end face outer ring and centre connect
Adapter tube, every two internal pipelines are connected by intermediate connection tube respectively with the both ends of an external pipe, freeze mechanism
The feeding pipe of coolant liquid is provided to cooling pipe with multiple, feeding pipe is connected with cooling pipe respectively.
Further, the side wall of the shield tail shell has multiple slip casting channels group, and each slip casting channel group includes two
Slip casting channel, every internal pipeline are adjacent with a slip casting channel respectively.
Further, the internal pipeline is parallel with the axis of the shield tail shell.
Further, the end that internal pipeline is not connected with intermediate connection tube is the outlet of coolant liquid, the outlet
On be respectively equipped with plug screw.
Optimization, the cooling pipe inner wall is coated with macromolecule heat insulating coating.
Optimization, the freezing mechanism is liquid nitrogen injection device.
Due to the above technical solutions, the present invention has the following advantages over the prior art: cooling pipe is integrated in
Without drilling, wasting time on section of jurisdiction after on shield tail shell, the structure of cooling pipe is simplified, tunnel duct piece is not influenced
Intensity, No leakage, the danger gushed.
Detailed description of the invention
Accompanying drawing 1 is the structural representation of the present invention；
Attached drawing 2 is the enlarged view A of attached drawing 1；
Attached drawing 3 is the enlarged view B of attached drawing 1；
Attached drawing 4 is the enlarged view C of attached drawing 1.
Specific embodiment
The invention will be further described for embodiment shown in reference to the accompanying drawing.
As shown in Figure 1,2,3, 4, the shield tail with refrigerating plant includes that shield tail shell 1, at least one is arranged in the shield
Cooling pipe on tail shell 1 and the freezing mechanism for being passed through coolant liquid into cooling pipe.In the present embodiment, described
Freezing mechanism is liquid nitrogen injection device, and the cooling pipe inner wall is coated with macromolecule heat insulating coating.
In the present embodiment, cooling pipe has four, and every cooling pipe includes being distributed along 1 end face outer ring of shield tail shell
Arc-shaped external pipe 2, two are opened in 1 interior of shield tail shell respectively and are located at the interior of 2 two sides of external pipe
The intermediate connection tube 4 of portion's pipeline 3 and the connection internal pipeline 3 and external pipe 2.External pipe 2 is welded in shield tail shell 1
Annular end face on, internal pipeline 3 by cut holes processing obtains, then in internal pipeline 3 coat macromolecule heat insulating coating, institute
The side wall for stating shield tail has multiple slip casting channels group, and each slip casting channel group includes two slip casting channels, every cooling tube
Two internal pipelines 3 in road are respectively close to same group of two slip casting channels.The internal pipeline 3 and the shield tail shell 1
Axis is parallel.The end that two internal pipelines 3 are not connected with intermediate connection tube 4 is the outlet 7 of coolant liquid, refrigerator
Structure have it is multiple provide the feeding pipes of coolant liquid to cooling pipe, feeding pipe is connected with cooling pipe respectively, for convenient for
Installation, feeding pipe is connected with intermediate connection tube 4 by quick coupling, is exported and is respectively equipped with plug screw 5 on 7, by spiral shell when use
Plug 5 is extracted, and coolant liquid passes sequentially through feeding pipe and cooling pipe reaches outlet 7, is gasified after the ejection of outlet 7, is reduced rapidly
The temperature of muddy water is allowed to frost solidification；Plug screw 5, which stoppers, when not used prevents cooling pipe from being blocked by the muddy water in construction.It is designing
When, it is necessary first to evade injected hole 6, but in need increases muddy water contact area at cryovial and shield tail rear as far as possible.Therefore,
Will the closely injected hole 6 as far as possible of outlet 7, but do not influence slip casting and shield tail intensity.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, if intermediate connection tube includes steering shaft, the connection being sheathed in the steering shaft
Tube body connects tube angulation by adjusting, realizes the connection type of different internal pipelines and external pipe, to realize to difference
The cooling at position, suchlike variation should be covered by the protection scope of the present invention.
Claims (1)
1. a kind of shield tail with refrigerating plant comprising shield tail shell, it is characterised in that: it further includes that at least one setting exists
Cooling pipe on the shield tail shell, the cooling pipe have a plurality of, and every cooling pipe includes at least one being opened in shield
The interior of tail shell and outlet are located at internal pipeline on shield tail inner sidewall and for being passed through cooling into cooling pipe
The freezing mechanism of liquid, every cooling pipe further include the external pipe and intermediate connection tube along the distribution of shield tail shell end face outer ring,
Every two internal pipelines are connected by intermediate connection tube respectively with the both ends of an external pipe, and freezing mechanism has more
A to provide the feeding pipe of coolant liquid to cooling pipe, feeding pipe is connected with cooling pipe respectively, the shield tail shell
Side wall have multiple slip casting channels group, each slip casting channel group include two slip casting channels, every internal pipeline respectively with one
Slip casting channel is adjacent, and the internal pipeline is parallel with the axis of the shield tail shell, internal pipeline not with intermediate connection tube phase
The end of connection is the outlet of coolant liquid, and plug screw is respectively equipped in the outlet, and the cooling pipe inner wall is coated with macromolecule
Heat insulating coating, the freezing mechanism are liquid nitrogen injection device, and coolant liquid passes sequentially through feeding pipe and cooling pipe is reached and exported,
Gasify after being sprayed from outlet, reduce rapidly the temperature of muddy water, is allowed to frost solidification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710126744.1A CN106869950B (en) | 2017-03-06 | 2017-03-06 | Shield tail with refrigerating plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710126744.1A CN106869950B (en) | 2017-03-06 | 2017-03-06 | Shield tail with refrigerating plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106869950A CN106869950A (en) | 2017-06-20 |
| CN106869950B true CN106869950B (en) | 2019-11-22 |
Family
ID=59170059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710126744.1A Active CN106869950B (en) | 2017-03-06 | 2017-03-06 | Shield tail with refrigerating plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106869950B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387100B (en) * | 2017-08-22 | 2023-08-18 | 中铁工程装备集团有限公司 | Shield constructs machine that possesses freezing reinforcement function |
| CN107725070A (en) * | 2017-11-27 | 2018-02-23 | 江苏迅拓机械有限公司 | A kind of shield segment assembling location lug set and its application in shield segment assembling |
| 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 |
| CN110159281A (en) * | 2019-06-17 | 2019-08-23 | 廊坊辰兴机械有限公司 | A kind of shield tail brush with freezing function and shield tail position freezing system |
| CN114017456B (en) * | 2021-11-04 | 2022-07-22 | 无锡中铁城轨装备有限公司 | High-efficient damping device of shield machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720506A (en) * | 2012-05-31 | 2012-10-10 | 中铁隧道股份有限公司 | Method for replacing tail brush in shield tunnel through liquid nitrogen freezing |
| CN205260042U (en) * | 2015-12-11 | 2016-05-25 | 海南大学 | Annular stabilization by freezing stagnant water structure when shield ventral brush is changed |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02157397A (en) * | 1988-12-07 | 1990-06-18 | Mitsui Constr Co Ltd | Exchanging method for tail seal of shield machine |
| JP6416612B2 (en) * | 2014-12-17 | 2018-10-31 | 西松建設株式会社 | Water stop method and wall construction method |
-
2017
- 2017-03-06 CN CN201710126744.1A patent/CN106869950B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720506A (en) * | 2012-05-31 | 2012-10-10 | 中铁隧道股份有限公司 | Method for replacing tail brush in shield tunnel through liquid nitrogen freezing |
| CN205260042U (en) * | 2015-12-11 | 2016-05-25 | 海南大学 | Annular stabilization by freezing stagnant water structure when shield ventral brush is changed |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106869950A (en) | 2017-06-20 |
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