CN107387102A - A kind of reconstruction shield machine of shield tunnel - Google Patents
A kind of reconstruction shield machine of shield tunnel Download PDFInfo
- Publication number
- CN107387102A CN107387102A CN201710721401.XA CN201710721401A CN107387102A CN 107387102 A CN107387102 A CN 107387102A CN 201710721401 A CN201710721401 A CN 201710721401A CN 107387102 A CN107387102 A CN 107387102A
- Authority
- CN
- China
- Prior art keywords
- shield
- reconstruction
- shield tunnel
- shell
- tunnel
- 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.)
- Granted
Links
- 239000002689 soil Substances 0.000 claims abstract description 20
- 238000010276 construction Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 235000019994 cava Nutrition 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 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
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
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)
Abstract
The invention discloses a kind of reconstruction shield machine of shield tunnel, the shield machine of rebuilding includes the outer shield shell being coaxially disposed and interior shield shell；Annular soil cabin plastron is connected between the front end of the outer shield shell and the interior shield shell；The front of the annular soil cabin plastron is provided with annular cutterhead；The outer shield shell is internally provided with existing shield tunnel circularity correcting system and existing shield tunnel dismounting system.It is an advantage of the invention that; the shield tunnel that the reconstruction shield machine will successfully can be scrapped is removed; assemble new shield tunnel simultaneously; solve the problems, such as that existing shield tunnel is scrapped processing and is difficult to and new built shield tunnel locus; and the disturbance to stratum is reduced to greatest extent, tunnel surrounding environment and structures are protected to greatest extent.
Description
Technical field
The invention belongs to Tunnel Engineering field, and in particular to a kind of reconstruction shield machine of shield tunnel.
Background technology
Shield tunnel has certain design life, and from the point of view of the shield tunnel runed, its badly broken, such as
Malformation is excessive, the breakage of structure crack, corner angle, structural percolating water etc., seriously threaten the service life of shield tunnel.Cause
This, the shield tunnel runed carries out the fact that reconstruction will be inevitable in the near future.If however, in existing shield
The direct moulded lining in tunnel, from the point of view of design, the requirement of subway train gauge can not be met at all.It is if existing shield tunnel is straight
Connect discarded, new built shield tunnel looks for another way, then after in the future unstability occurs for existing shield tunnel, will directly affect its earth's surface, week
Closed structure thing etc., and Underground Space Resource does not also allow.Therefore, how to be removed existing close to the shield tunnel scrapped,
How new built shield tunnel locus selects, and how new built shield tunnel is that Shield-bored tunnels field is inevitable
Problem.And the space resources of existing shield tunnel is utilized, while existing shield tunnel is removed, then new shield is assembled again
Structure tunnel is effective solution route of above mentioned problem.But have, existing shield machine can not meet above-mentioned function.
The content of the invention
According to the deficiencies of the prior art described above, It is an object of the present invention to provide a kind of reconstruction shield of shield tunnel
Machine, the reconstruction shield machine new built shield tunnel of synchronous construction while existing tunnel is removed, efficiently solves existing tunnel
The problem of being difficult to scrap processing, and new built shield tunnel space problem.
The object of the invention is realized and completed by following technical scheme：
A kind of reconstruction shield machine of shield tunnel, the shield machine of rebuilding include the outer shield shell being coaxially disposed and interior shield shell；Institute
State outer shield shell front end and the interior shield shell between be connected with annular soil cabin plastron；The front of the annular soil cabin plastron is set
It is equipped with annular cutterhead；The outer shield shell be internally provided with existing shield tunnel circularity correcting system and existing shield tunnel is torn open
Except system.
It is annular Tu Cang between the native storehouse plastron of annular and the cutterhead, the back side of the annular soil cabin plastron is provided with
Soil cabin deslagging device and the annular cutterhead driving device for driving the annular cutterhead to rotate.
The inner surface setting of the interior shield shell has anterior shield shell waterproof construction.
The front edge of the interior shield shell is provided with some directive wheels.
The existing shield tunnel circularity correcting system includes triatic stay and the correction disk being made up of some correction bars；
The center for correcting disk is vertically set on the leading section of the triatic stay；Each correction bar is arranged radially, and is formed
The correction disk；The first end for correcting bar connects the triatic stay.
Described to correct the expansion link that bar is hydraulic-driven, its second end is connected with guide wheel.
One end of the triatic stay is fixedly connected on the correcting system support inside the outer shield shell.
The triatic stay is coaxially disposed with the interior shield shell.
Some hydraulic tops towards the outer shield shell rear end that are internally provided with of the outer shield shell enter oil cylinder.
The internal diameter of the outer shield shell is more than the external diameter 15-30cm of new built shield tunnel.
It is an advantage of the invention that the shield tunnel that the reconstruction shield machine will successfully can be scrapped is removed, assemble simultaneously
New shield tunnel, solve the problems, such as that existing shield tunnel is scrapped processing and is difficult to and new built shield tunnel locus, and it is maximum
The disturbance to stratum is reduced to limit, protects tunnel surrounding environment and structures to greatest extent.
Brief description of the drawings
Fig. 1 is the sectional view of the reconstruction shield machine in the present invention；
Fig. 2 is the partial enlarged drawing in Fig. 1 at A in the present invention；
Fig. 3 is that the schematic diagram in the disk course of work is corrected in the present invention.
Embodiment
The feature of the present invention and other correlated characteristics are described in further detail by embodiment below in conjunction with accompanying drawing, with
It is easy to the understanding of technical staff of the same trade：
Such as Fig. 1-3, mark 1-19 is respectively in figure：Rebuild shield machine 1, existing shield tunnel 2, outer shield shell 3, interior shield shell 4, annular
Soil cabin plastron 5, annular cutterhead 6, existing shield tunnel remove system 7, existing shield tunnel circularity correcting system 8, newly-built shield
Tunnel 9, triatic stay 10, correct bar 11, correct disk 12, correcting system support 13, guide wheel 14, annular cutterhead driving device 15,
Soil cabin deslagging device 16, anterior shield shell waterproof construction 17, directive wheel 18, hydraulic top enter oil cylinder 19, the native storehouse 20 of annular.
Embodiment：As shown in figure 1, the present embodiment is specifically related to a kind of reconstruction shield machine of shield tunnel, the reconstruction shield
Machine 1 includes the outer shield shell 3 of tubular and interior shield shell 4；Interior shield shell 4 is arranged on the inside of outer shield shell 3, and the two is coaxially disposed；Outside
Annular soil cabin plastron 5 is connected between the front end of shield shell 3 and interior shield shell 4；It is provided with the front openings of annular soil cabin plastron 5
Annular cutterhead 6, it is the native storehouse 20 of annular between the native storehouse plastron 5 of annular and annular cutterhead 6；Outer shield shell 3 is internally provided with existing shield
Structure tunnel circularity correcting system 8；Interior shield shell 4 is used for the outer surface for being set in existing shield tunnel 2, and existing shield tunnel removes system
System 7 is used for the section of jurisdiction that existing shield tunnel 2 is removed in the jack-in process of shield machine 1 is rebuild.
As shown in Figure 1, 2, annular cutterhead 6 is looped around the outer surface of interior shield shell 4；The external diameter of annular cutterhead 6 and outer shield shell 3
Diameter is identical, and the back side of annular soil cabin plastron 5 is provided with annular cutterhead driving device 15；Annular cutterhead driving device 15 is used for
Axis of the annular cutterhead 6 along outer shield shell 3 is driven to rotate；It can be cut in the annular rotation process of cutterhead 6 and rebuild the front of shield machine 1
The soil body；It is additionally provided with soil cabin deslagging device 16 at the back side of annular soil cabin plastron 5, the dregs in annular soil cabin 20 can pass through soil
Cabin deslagging device 16 is discharged；The reconstruction shield machine 1 of the present embodiment can be balancing earth-pressure shielding machine, or mud and water balance shield
Structure machine.
As shown in Figure 1, 2, in order to ensure the sealing between the inner surface of interior shield shell 4 and the outer surface of existing shield tunnel 2
Property；There is anterior shield shell waterproof construction 17 in the inner surface setting of interior shield shell 4；Anterior shield shell waterproof construction 17 and existing shield tunnel 2
Outer surface is brought into close contact, and the underground water and mud that can prevent from rebuilding the front of shield machine 1 enter the inside for rebuilding shield machine 1；
Can smoothly it be slided along the outer surface of existing shield tunnel 2 in order to ensure rebuilding interior shield shell 4 in the jack-in process of shield machine 1,
The front edge of interior shield shell 4 is provided with multiple directive wheels 18.
As shown in Figure 1,3, existing shield tunnel 2 experienced very long use process after building up, existing in the process
It can be deformed in the presence of the external force such as the stratum differential settlement of shield tunnel 2, the section shape of the existing shield tunnel 2 after deformation
The cross sectional shape of shape and interior shield shell 4 is inconsistent so that interior shield shell 4 can not be slided successfully along the outer surface of existing shield tunnel 2
It is dynamic；In order to solve this problem, the inside of the reconstruction shield machine 1 of the present embodiment is provided with existing shield tunnel circularity correcting system
8；Existing shield tunnel circularity correcting system 8 includes triatic stay 10 and the correction disk 12 being made up of more correction bars 11；Water
The one end for supporting bar 10 is fixedly connected on correcting system support 13 internally；Triatic stay 10 is coaxially disposed with interior shield shell 4.
As shown in Figure 1,3, triatic stay 10 is vertically connected on the center for correcting disk 12；It is each to correct 11 radial row of bar
Row, form and correct disk；Correct first end connection triatic stay 10 end of bar 11；The second end for correcting bar 11 is provided with guide wheel
14；Correct the expansion link that bar 11 is hydraulic-driven, each expansion link it is flexible can length it is identical, so as to form rounded correction
Disk；Guide wheel 14 can allow the second end for correcting bar 11 in the jack-in process of shield machine 1 is rebuild along existing shield tunnel 2
Inner surface slide, reach the guiding of external shield shell 3.
As shown in Figure 1,3, the cross sectional shape of existing shield tunnel 2 is entered using existing shield tunnel circularity correcting system 8
During row is corrected, correction disk 12 is arranged on to the end of existing shield tunnel 2, corrects disk 12 and existing shield tunnel 2
Axis is vertical, and the second end of the correction bar 11 for correcting disk 12 is shored to the inner surface in existing shield tunnel 2；It is each by adjusting
The flexible of bar 11 is corrected, the cross sectional shape for the existing shield tunnel 2 for correcting the position of disk 12 can be not only adjusted, can also pass through
Attachment structure between tunnel duct piece so that the front and rear sides that the active force of correction corrects the position of disk 12 to adjustment are transmitted, from
And zonal correction is carried out to the whole a range of existing shield tunnel 2 in front of correction disk 12 so that interior shield shell 4 can be suitable
Freely slided along the outer surface of existing shield tunnel 2；In addition, correct disk 12 and may also function as supporting role, avoid existing
The end of shield tunnel 2 caves in unloading process.
As shown in figure 1, some hydraulic tops towards rear end that are internally provided with of outer shield shell 3 enter oil cylinder 19；Rebuilding shield
In the jack-in process of machine 1, continue the assembled new built shield tunnel 9 in rear end section of jurisdiction, the external diameter of new built shield tunnel 9 is slightly less than outer
The internal diameter of shield shell 3；The internal diameter of outer shield shell 3 is more than the external diameter 15-30cm of new built shield tunnel 9.The external diameter ratio of new built shield tunnel 9
The big 1-2m of external diameter of existing shield tunnel 2,2 big 0.1-0.25m of section of jurisdiction thickness ratio existing shield tunnel；Pushed up rebuilding shield machine 1
During entering, hydraulic top enters oil cylinder 19 and shores section of jurisdiction leading edge in new built shield tunnel 9.
As shown in figure 1, the method that rebuilding tunnel is carried out using the reconstruction shield machine 1 of the present embodiment is comprised the following steps：
1）As shown in figure 1, shield machine 1 will be rebuild installed in the end of existing shield tunnel 2；The interior shield shell 4 of shield machine will be rebuild
It is set in the outer surface of existing shield tunnel 2；
2）As shown in figure 1, rebuilding the jacking forward of shield machine 1, system is corrected using internal existing shield tunnel circularity before jacking
The end of 8 pairs of existing shield tunnels 2 of system is corrected, and system is corrected because existing shield tunnel 2 obtains existing shield tunnel circularity
The correction of system 8, therefore the outer surface of existing shield tunnel 2 that the directive wheel 18 rebuild on shield machine 1 can be along after being corrected
Carry out guiding slip；After the completion of jacking, the end of the dismounting existing shield tunnel 2 of system 7 is removed using the existing shield tunnel of inside
End, and the section of jurisdiction of the assembled new built shield tunnel 9 of afterbody in outer shield shell 3；The jack-in process of above-mentioned reconstruction shield machine 1 is repeated, directly
Rebuild and complete to the existing shield tunnel.
The advantageous effects of the present embodiment are：The shield tunnel that the reconstruction shield machine will successfully can be scrapped is removed,
New shield tunnel is assembled simultaneously, existing shield tunnel is solved and scraps that processing is difficult to and new built shield tunnel locus is asked
Topic, and the disturbance to stratum is reduced to greatest extent, tunnel surrounding environment and structures are protected to greatest extent.
Claims (10)
- A kind of 1. reconstruction shield machine of shield tunnel, it is characterised in that it is described rebuild shield machine include the outer shield shell that is coaxially disposed with And interior shield shell；Annular soil cabin plastron is connected between the front end of the outer shield shell and the interior shield shell；The annular soil cabin The front of plastron is provided with annular cutterhead；The outer shield shell is internally provided with existing shield tunnel circularity correcting system and both There is shield tunnel to remove system.
- A kind of 2. reconstruction shield machine of shield tunnel according to claim 1, it is characterised in that the native storehouse plastron of annular It is annular Tu Cang between the cutterhead, the back side of the annular soil cabin plastron is provided with soil cabin deslagging device and for driving The annular cutterhead driving device that the annular cutterhead rotates.
- A kind of 3. reconstruction shield machine of shield tunnel according to claim 1, it is characterised in that the interior table of the interior shield shell Face is provided with anterior shield shell waterproof construction.
- A kind of 4. reconstruction shield machine of shield tunnel according to claim 1, it is characterised in that the front end of the interior shield shell Edge is provided with some directive wheels.
- A kind of 5. reconstruction shield machine of shield tunnel according to claim 1, it is characterised in that the existing shield tunnel Circularity correcting system includes triatic stay and the correction disk being made up of some correction bars；The center for correcting disk is vertically arranged In the leading section of the triatic stay；Each correction bar is arranged radially, and forms the correction disk；It is described to correct the of bar One end connects the triatic stay.
- 6. the reconstruction shield machine of a kind of shield tunnel according to claim 5, it is characterised in that the correction bar is hydraulic pressure The expansion link of driving, its second end are connected with guide wheel.
- A kind of 7. reconstruction shield machine of shield tunnel according to claim 5, it is characterised in that the one of the triatic stay End is fixedly connected on the correcting system support inside the outer shield shell.
- 8. the reconstruction shield machine of a kind of shield tunnel according to claim 5, it is characterised in that the triatic stay and institute Interior shield shell is stated to be coaxially disposed.
- A kind of 9. reconstruction shield machine of shield tunnel according to claim 1, it is characterised in that the inside of the outer shield shell It is provided with some hydraulic tops towards the outer shield shell rear end and enters oil cylinder.
- A kind of 10. reconstruction shield machine of shield tunnel according to claim 1, it is characterised in that the internal diameter of the outer shield shell More than the external diameter 15-30cm of new built shield tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710721401.XA CN107387102B (en) | 2017-08-22 | 2017-08-22 | Reconstruction shield machine for shield tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710721401.XA CN107387102B (en) | 2017-08-22 | 2017-08-22 | Reconstruction shield machine for shield tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107387102A true CN107387102A (en) | 2017-11-24 |
| CN107387102B CN107387102B (en) | 2023-11-14 |
Family
ID=60352714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710721401.XA Active CN107387102B (en) | 2017-08-22 | 2017-08-22 | Reconstruction shield machine for shield tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107387102B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571322A (en) * | 2018-05-16 | 2018-09-25 | 华东交通大学 | A kind of shield machine ventral brush device and its replacing options |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571322A (en) * | 2018-05-16 | 2018-09-25 | 华东交通大学 | A kind of shield machine ventral brush device and its replacing options |
| CN108571322B (en) * | 2018-05-16 | 2023-08-15 | 华东交通大学 | Shield tunneling machine tail brush device and replacement method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107387102B (en) | 2023-11-14 |
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