CN110307437A - Tunnel duct piece hand hole protection plug and guard method - Google Patents
Tunnel duct piece hand hole protection plug and guard method Download PDFInfo
- Publication number
- CN110307437A CN110307437A CN201910731966.5A CN201910731966A CN110307437A CN 110307437 A CN110307437 A CN 110307437A CN 201910731966 A CN201910731966 A CN 201910731966A CN 110307437 A CN110307437 A CN 110307437A
- Authority
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- China
- Prior art keywords
- hand hole
- chock
- section
- jurisdiction
- duct piece
- 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.)
- Pending
Links
- 230000004224 protection Effects 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims description 18
- 238000010276 construction Methods 0.000 claims abstract description 9
- 239000013013 elastic material Substances 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 abstract description 7
- 238000000605 extraction Methods 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/11—Plugs
- F16L55/1141—Plugs the plug being made of elastic material
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
Abstract
The invention discloses a kind of protections of tunnel duct piece hand hole to fill in, and including the chock for clogging section of jurisdiction hand hole, the chock is equipped with the notch to avoid the installing component in the section of jurisdiction hand hole.Pass through above-mentioned chock; when carrying out next ring pipe sheet assembling, to previous ring, the assembled section of jurisdiction hand hole finished carries out temporary plugging; the residues such as the silt during constructing tunnels such as subsequent pipe sheet assembling are effectively prevented to enter in the hand hole of section of jurisdiction; reduce the later period to the cleaning work of section of jurisdiction hand hole, use manpower and material resources sparingly; all protection plugs are extracted after tunnel segment construction; recyclable recycling, reduces cost；By the setting of flange, make the extraction to chock it is more convenient, save the operating time；By the setting of ribs, enhance the intensity of chock.
Description
Technical field
The present invention relates to tunnels and underground engineering technical fields, protect plug and protection side more particularly to tunnel duct piece hand hole
Method.
Background technique
Tunnel be it is assembled by section of jurisdiction ring by ring, the specific position of every section of jurisdiction presets section of jurisdiction hand hole, spell
The tunnel duct piece for dressing up ring is formed with 16 hand hole distributed points of a circle according to the distribution of section of jurisdiction hand hole, only aligns under regular situation
Envelope is filled in the section of jurisdiction hand hole of 11 hand hole distributed points (i.e. the 1st~5 and 11~16 in Fig. 6) on tunnel duct piece top
It is stifled, and the section of jurisdiction hand hole for the five hand hole distributed points (i.e. the 6th~10 point in Fig. 6) for being located at tunnel duct piece lower part is not filled out
It fills, the section of jurisdiction hand hole that this part is not filled with is when continuing subsequent pipe sheet assembling, it is easy to deposition sand or ponding etc., and tunnel
After section of jurisdiction construction terminates (i.e. all pipe sheet assemblings finish), the section of jurisdiction hand hole for needing to be not filled with is cleaned out and can just be handed over, by
It is influenced in the special shape and silt gravity of section of jurisdiction hand hole, needs to expend a large amount of human and material resources to carry out clearly to section of jurisdiction hand hole
Reason.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, a kind of tunnel duct piece hand hole protection plug is provided, for facing
When block be located at tunnel duct piece lower part section of jurisdiction hand hole, reduce tunnel duct piece completion after cleaning work, save human and material resources.
To achieve the above object, the present invention is realized especially by with following technical proposals: a kind of tunnel duct piece hand hole is protected
Shield plug, including the chock for clogging section of jurisdiction hand hole, the chock is equipped with to avoid the mounting portion in the section of jurisdiction hand hole
The notch of part.
By in the hand hole of section of jurisdiction, effectively preventing the entrance of silt during tunnel segment construction, subtracting chock filling
Few later period cleaning work.
Tunnel duct piece hand hole of the present invention protection plug further improvement lies in that, the section of jurisdiction hand hole include the first flat slope face and
First arc slope surface, first flat slope face and the first arc slope surface in the section of jurisdiction hand hole opening to the section of jurisdiction hand
The depth direction in hole extends and gathers to form bottom hole, and the handover line of first flat slope face and the first arc slope surface is in arc-shaped,
First flat slope face is equipped with the mounting hole for installing the installing component.
The section of jurisdiction hand hole of above-mentioned shape is interannular hand hole, by clogging chock in interannular hand hole to realize to interannular hand
The closure in hole.
Tunnel duct piece hand hole of the present invention protection plug further improvement lies in that, the section of jurisdiction hand hole includes being located at the section of jurisdiction
Second arc slope surface of hand hole bottom hole and respectively with the second arc slope surface both ends in circular sliding slopes the second flat slope face and
Third flat slope face, the size in second flat slope face are greater than third flat slope face and second flat slope face and are equipped with for pacifying
Fill the mounting hole of the installing component.
The section of jurisdiction hand hole of above-mentioned shape is hand hole in ring, by by chock filling in being realized in hand hole in ring to hand in ring
The closure in hole.
Tunnel duct piece hand hole of the present invention protection plug further improvement lies in that, the chock towards in the section of jurisdiction hand hole
Side be a flat surface and the thickness of the chock be less than the section of jurisdiction hand hole depth.
By above-mentioned improvement, the convenient processing and fabricating to chock, while the notch of larger size is formed in chock bottom, into
And guarantee that installing component will not be touched when chock filling is in the hand hole of section of jurisdiction.
Tunnel duct piece hand hole of the present invention protection plug further improvement lies in that, the chock is equipped with and protrudes from section of jurisdiction surface
Flange.
By the setting of flange, operating space is provided for construction personnel, keeps extraction chock more convenient.
Tunnel duct piece hand hole of the present invention protection plug further improvement lies in that, the chock is made by elastic material, and institute
The middle part for stating chock is equipped with ribs along the thickness direction perpendicular to the chock.
By the setting of ribs, the intensity of protection plug is enhanced.
The present invention also provides a kind of tunnel duct piece hand hole guard methods, include the following steps:
N ring pipe sheet assembling is carried out, after the completion of N ring pipe sheet assembling, chock one-to-one correspondence is filled in into N ring
The section of jurisdiction hand hole in；
N+1 ring pipe sheet assembling is carried out, after the completion of N+1 ring pipe sheet assembling, chock one-to-one correspondence is filled in
In section of jurisdiction hand hole described in N+1 ring；
Construction is repeated until extracting all chocks after the completion of last ring pipe sheet assembling.
By the above method, when carrying out next ring pipe sheet assembling, to previous ring, the assembled section of jurisdiction hand hole finished is carried out
Temporary plugging prevents the section of jurisdiction hand hole positioned at tunnel bottom from entering the foreign matters such as silt during constructing tunnel, reduces the later period pair
The cleaning work of section of jurisdiction hand hole saves human and material resources, extracts chock after constructing tunnel, and recycling can be recycled, and reduces
Cost.
Tunnel duct piece hand hole guard method of the present invention further improvement lies in that, each endless tube on piece be equipped with interannular hand hole and
Hand hole in ring, the chock include the first chock being adapted to the interannular hand hole and the second plug being adapted to hand hole in the ring
Block.
The protection to section of jurisdiction hand hole of different shapes is realized by chock of different shapes.
Tunnel duct piece hand hole guard method of the present invention further improvement lies in that, the chock be equipped with protrude from the pipe
The flange on piece surface, by pulling the flange edge to extract the chock.
By the setting of flange, make to extract lighter when chock.
Tunnel duct piece hand hole guard method of the present invention further improvement lies in that, cyclic tunnel duct piece be equipped with one circle hand
Pore size distribution point, the chock only fill in the section of jurisdiction hand hole in three hand hole distributed points of the tunnel duct piece bottom
It is interior.
The present invention include but is not limited to it is following the utility model has the advantages that
1, temporary plugging is carried out to section of jurisdiction hand hole by the chock of the shape adaptation with section of jurisdiction hand hole, effectively prevent silt etc.
Into section of jurisdiction hand hole, the reduction later period is artificial to cleaning work, the saving of section of jurisdiction hand hole, in addition can be by institute after constructing tunnel
There is chock extraction, is used in turn with recycling, reduces cost；
2, by the setting of flange, make to extract that chock is more convenient, saves the operating time；
3, by the setting of ribs, the intensity of chock is enhanced.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, embodiment will be described required for summarizing below
The attached drawing used is briefly described:
Fig. 1 is the diagrammatic cross-section when embodiment of the present invention is plugged in section of jurisdiction hand hole；
Fig. 2 is positive structure schematic when one embodiment of the invention blocks interannular hand hole；
Fig. 3 is the A-A cross-sectional view of Fig. 2；
Fig. 4 is positive structure schematic when another embodiment of the present invention blocks hand hole in ring；
Fig. 5 is the B-B cross-sectional view of Fig. 4；
Fig. 6 is the distribution schematic diagram of section of jurisdiction hand hole on the end face of loop tunnel section of jurisdiction.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.
As shown in fig.6, due to the section of jurisdiction hand hole for the five hand hole distributed points (i.e. the 6th~10) for being located at tunnel duct piece lower part
It does not do filling to block, causes this part section of jurisdiction hand hole when continuing subsequent tunnel pipe sheet assembling, it is easy to accumulate foreign matter, make
It needs a large amount of human and material resources to be cleared up after obtaining tunnel segment construction, extends the duration, increase cost, therefore,
The present invention provides a kind of tunnel duct piece hand hole protection plug and it is made to use method, using the protection plug to positioned at tunnel duct piece bottom
It does not do the section of jurisdiction hand hole filled and carries out temporary plugging, the foreign matters such as silt enter section of jurisdiction hand hole when preventing subsequent tunnel section of jurisdiction from constructing
It is interior, cleaning work is reduced, human and material resources is saved, reduces cost.In the following with reference to the drawings and specific embodiments to a kind of tunnel of the present invention
Road section of jurisdiction hand hole protection plug and guard method are explained in detail.
The present invention provides a preferred embodiments, as shown in fig.1, a kind of protection of tunnel duct piece hand hole is filled in, including to
20 chock 30 of section of jurisdiction hand hole is clogged, the chock 30 is equipped with to avoid the installing component in the section of jurisdiction hand hole 20 (in figure
Do not mark) notch 40.By the way that the filling of chock 30 is entered pipe in section of jurisdiction hand hole 20, effectively preventing the foreign matters such as external silt
Piece hand hole 20, while passing through the setting of notch 40, so that chock 30 is avoided the installing component being installed in section of jurisdiction hand hole 20.
Since section of jurisdiction is sectional, usually first circumferential assembled when carrying out built tunnel piping, a complete ring to be assembled
Assembled next ring again later, generally relates to the section of jurisdiction hand hole 20 of two kinds of shapes, one is the interannular hand hole fixed for interannular,
Another kind is for hand hole in ring fixed in ring, below by two embodiments respectively to hand hole in closure interannular hand hole and ring
Protection plug be illustrated:
In the first embodiment, refering to shown in Fig. 2 and Fig. 3, section of jurisdiction hand hole 20 is interannular hand hole 20 ', the interannular hand hole 20 '
Including the first flat slope face 22 ' and the first arc slope surface 23 ', the first flat slope face 22 ' and the first arc slope surface 23 ' are in interannular hand hole
20 ' opening extends to the depth direction of interannular hand hole 20 ' and gathers to form bottom hole, the first flat slope face 22 ' and the first arc slope
The handover line in face 23 ' is in arc-shaped, and the first flat slope face 22 ' of institute is equipped with mounting hole 21 for installing the installing component, fills in
The shape of block 30 and the shape adaptation of interannular hand hole 20 ', and clog in interannular hand hole 20 ', to realize to interannular hand hole 20 '
It blocks；
In a second embodiment, refering to shown in Fig. 4 and Fig. 5, section of jurisdiction hand hole 20 is hand hole 20 " in ring, hand hole 20 " in the ring
Including being located at the second arc slope surface 24 " of 20 bottom hole of section of jurisdiction hand hole and respectively with 4 " both ends of the second arc slope surface in circular sliding slopes
The second flat slope face 22 " and third flat slope face 232 ", it is flat that the size in the second flat slope face 22 " is greater than third flat slope face 23 " and second
Slope surface 22 " is equipped with the mounting hole 21 for installing the installing component, and the shape of hand hole 20 " is suitable in the shape and ring of chock 30
Match, and clog in hand hole 20 " in ring, to realize the closure to hand hole 20 " in ring.
Further, chock 30 be a flat surface towards the side in section of jurisdiction hand hole 20 and the thickness of chock 30 be less than section of jurisdiction
The depth of hand hole 20 is more easier the processing and fabricating of chock 30, and the size of notch 40 accordingly also can be larger, to prevent detent plug
Block 30 touches installing component, because installing component herein typically refers to the installation bolt to connect adjacent section of jurisdiction, and pacifies
Dress bolt may protrude from mounting hole 21, so the larger notch 40 of size can make chock 30 preferably avoid installation spiral shell
Bolt.
Further, chock 30 is equipped with the flange 31 for protruding from section of jurisdiction inner arcuate surface, in order to which construction personnel is by holding
It holds flange 31 to exert a force to chock 30, makes to extract chock 30 and be more easier, which, which can be, connect with the surface of chock 30
Independent component, is also possible to the skirt shape extended to form around by 30 surface of chock, is covered in chock in the flange of skirt shape
On the 30 gap ports contacted with section of jurisdiction hand hole 20, block section of jurisdiction hand hole 20 more tight, while to extract plug
Gripping space is provided when block 30, keeps the extraction to chock 30 lighter.
Further, in order to make chock 30 is closer to fill up in section of jurisdiction hand hole 20, it is preferred to use with certain elasticity
Material makes chock 30, also may be selected to cover frictional layer in the outer surface of chock 30, which can increase chock 30 and section of jurisdiction
Frictional force between 20 inner wall of hand hole, while the inner wall of section of jurisdiction hand hole 20 will not be damaged again, so, chock 30 fills up section of jurisdiction
Because stiction is without voluntarily falling off after in hand hole 20.Using elastic material make chock 30 if, chock 30 by compared with
It may be deformed when big external force, in order to guarantee the intensity of chock 30 and the stability of closure, the present embodiment is in chock 30
Portion is provided with ribs 32 along the thickness direction perpendicular to chock 30.
The present invention also provides a kind of tunnel duct piece hand hole guard methods, include the following steps:
The N ring pipe sheet assembling for carrying out tunnel immediately corresponds chock 30 after the completion of N ring pipe sheet assembling
It fills in the section of jurisdiction hand hole 20 (being located at the section of jurisdiction hand hole in the 6th~10 point) for being located at tunnel bottom and being not filled with of N ring；
N+1 ring pipe sheet assembling is carried out, after the completion of N+1 ring pipe sheet assembling, chock 30 is corresponded fill in immediately
Enter in the section of jurisdiction hand hole 20 (being located at the section of jurisdiction hand hole in the 6th~10 point) for being located at tunnel bottom and being not filled with of N+1 ring；
Construction is repeated until extracting all chocks 30 after the completion of last ring pipe sheet assembling.
By the above method, when carrying out next ring pipe sheet assembling, to previous ring, the assembled section of jurisdiction hand hole finished is carried out
Temporary plugging, prevent the section of jurisdiction hand hole 20 positioned at tunnel bottom of previous ring during the constructing tunnels such as subsequent pipe sheet assembling into
Enter the foreign matters such as silt, reduces cleaning work of the later period to section of jurisdiction hand hole 20, save human and material resources, pulled out after constructing tunnel
Chock 30 out can be recycled recycling, reduce cost.
Further, each endless tube on piece is equipped with hand hole 20 " in interannular hand hole 20 ' and ring, and correspondingly, the chock 30 wraps
The first chock 30 ' compatible with 20 ' shape of interannular hand hole and the second chock 30 " compatible with 20 " shape of hand hole in ring are included,
It should correspond and fill in when filling in chock 30.
Further, chock 30 is held equipped with the flange 31 for protruding from section of jurisdiction inner arcuate surface when needing to extract chock 30
Firmly flange 31, which is pulled outwardly, easily to extract together with chock 30, save the operating time.
Further, as shown in fig.6, the tunnel duct piece of cyclization is equipped with 16 hand hole distributed points (1~16) of circle,
The present embodiment only needs the section of jurisdiction hand filled in chock 30 correspondingly in 7~9 hand hole distributed points of tunnel duct piece bottom
In hole 20, it is easier to accumulate foreign matter, pair of targeted property because the position of the section of jurisdiction hand hole 20 of above-mentioned position is lower
The section of jurisdiction hand hole 20 of these positions carries out temporary plugging, it is possible to reduce unnecessary waste reduces cost.
It should be noted that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate
The bright revealed content of book is not intended to limit the invention enforceable limit so that those skilled in the art understands and reads
Fixed condition, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, not
It influences still fall in disclosed technology contents under the effect of present invention can be generated and the purpose that can reach and obtain
In the range of capable of covering.Meanwhile it is cited such as "upper", "lower", "left", "right", " centre " and " one " in this specification
Term is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, the change of relativeness or tune
It is whole, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
The above is only presently preferred embodiments of the present invention, but present invention is not limited to the embodiments described above,
Those skilled in the art within the scope of knowledge, can also make many variations to it.Thus, in embodiment
Certain details should not constitute limitation of the invention, and the present invention will be using the range that the appended claims define as of the invention
Protection scope.
Claims (10)
1. a kind of tunnel duct piece hand hole protection plug, which is characterized in that including the chock for clogging section of jurisdiction hand hole, on the chock
Equipped with the notch to avoid the installing component in the section of jurisdiction hand hole.
2. tunnel duct piece hand hole protection plug according to claim 1, which is characterized in that the section of jurisdiction hand hole includes first flat
Slope surface and the first arc slope surface, first flat slope face and the first arc slope surface in the section of jurisdiction hand hole opening to described
The depth direction of section of jurisdiction hand hole extends and gathers to form bottom hole, and the handover line of first flat slope face and the first arc slope surface is in circle
Arcuation, first flat slope face are equipped with the mounting hole for installing the installing component.
3. tunnel duct piece hand hole protection plug according to claim 1, which is characterized in that the section of jurisdiction hand hole includes being located at institute
State the second arc slope surface of section of jurisdiction hand hole bottom hole and respectively with the second arc slope surface both ends in the second flat of circular sliding slopes
The size in slope surface and third flat slope face, second flat slope face is greater than third flat slope face and second flat slope face is equipped with
For installing the mounting hole of the installing component.
4. tunnel duct piece hand hole according to claim 1 protection plug, which is characterized in that the chock towards the section of jurisdiction
Side in hand hole is a flat surface and the thickness of the chock is less than the depth of the section of jurisdiction hand hole.
5. tunnel duct piece hand hole protection plug according to claim 1, which is characterized in that the chock is equipped with and protrudes from pipe
The flange on piece surface.
6. tunnel duct piece hand hole protection plug according to claim 1, which is characterized in that the chock is by elastic material system
Make, and the middle part of the chock is equipped with ribs along the thickness direction perpendicular to the chock.
7. a kind of tunnel duct piece hand hole guard method, using the closure of tunnel duct piece hand hole as described in claim 1 protection plug
Method, which comprises the steps of:
N ring pipe sheet assembling is carried out, after the completion of N ring pipe sheet assembling, the chock is corresponded to the institute for filling in N ring
It states in the hand hole of section of jurisdiction；
N+1 ring pipe sheet assembling is carried out, after the completion of N+1 ring pipe sheet assembling, chock one-to-one correspondence is filled in into N+1
In section of jurisdiction hand hole described in ring；
Construction is repeated until extracting all chocks after the completion of last ring pipe sheet assembling.
8. tunnel duct piece hand hole guard method according to claim 7, which is characterized in that each endless tube on piece is equipped with interannular
Hand hole in hand hole and ring, the chock include the first chock being adapted to the interannular hand hole and are adapted to hand hole in the ring
Second chock.
9. tunnel duct piece hand hole guard method according to claim 7, which is characterized in that the chock is equipped with and protrudes from
The flange on the section of jurisdiction surface, by pulling the flange to extract the chock.
10. according to the described in any item tunnel duct piece hand hole guard methods of claim 7~9, which is characterized in that cyclic tunnel
Section of jurisdiction is equipped with a circle hand hole distributed point, and the chock is only filled in three hand hole distributed points of the tunnel duct piece bottom
The section of jurisdiction hand hole in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910731966.5A CN110307437A (en) | 2019-08-09 | 2019-08-09 | Tunnel duct piece hand hole protection plug and guard method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910731966.5A CN110307437A (en) | 2019-08-09 | 2019-08-09 | Tunnel duct piece hand hole protection plug and guard method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110307437A true CN110307437A (en) | 2019-10-08 |
Family
ID=68082127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910731966.5A Pending CN110307437A (en) | 2019-08-09 | 2019-08-09 | Tunnel duct piece hand hole protection plug and guard method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110307437A (en) |
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| CN105587326A (en) * | 2016-01-29 | 2016-05-18 | 中铁第一勘察设计院集团有限公司 | Multiple waterproof duct piece structure for tunnel through shield method or TBM method |
| CN105649649A (en) * | 2016-02-04 | 2016-06-08 | 广州市市政工程设计研究总院 | PVC sheet shield tunnel segment inner corrosion prevention system with linings |
| CN207598251U (en) * | 2017-10-16 | 2018-07-10 | 广州地铁设计研究院有限公司 | The tunnel structure reinforced using aramid fiber and steel plate |
| CN207989042U (en) * | 2018-04-02 | 2018-10-19 | 中电建成都混凝土制品有限公司 | A kind of concrete pipe sheet anticollision device, collision-prevention device |
| CN208267848U (en) * | 2018-06-01 | 2018-12-21 | 中建八局轨道交通建设有限公司 | The protection bracket of section of jurisdiction for shield tunnel |
| CN208502800U (en) * | 2018-07-18 | 2019-02-15 | 中铁十一局集团城市轨道工程有限公司 | Preventing water leakage tunnel duct piece hand hole blocking structure |
| CN210291134U (en) * | 2019-08-09 | 2020-04-10 | 中建八局轨道交通建设有限公司 | Tunnel segment hand hole protection plug |
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