CN110359935A - Buried water stop plug board mold in tunnel lining trolley installation - Google Patents
Buried water stop plug board mold in tunnel lining trolley installation Download PDFInfo
- Publication number
- CN110359935A CN110359935A CN201910465056.7A CN201910465056A CN110359935A CN 110359935 A CN110359935 A CN 110359935A CN 201910465056 A CN201910465056 A CN 201910465056A CN 110359935 A CN110359935 A CN 110359935A
- Authority
- CN
- China
- Prior art keywords
- lower template
- cope plate
- ear
- water stop
- trolley
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 238000009434 installation Methods 0.000 title claims abstract description 15
- 239000007799 cork Substances 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 description 12
- 238000005266 casting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 241000719178 Carangoides ruber Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/381—Setting apparatus or devices
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
Buried water stop plug board mold in tunnel lining trolley installation, setting is on the car, for clamping fixed by middle buried water stop and then being cast in the size positions of two lining Concrete Design requirements, plug board mold includes cope plate, lower template, adjustable screw jack and supporting rod seat, the top of cope plate and lower template is connected by first hinge seat, and the gap width between cope plate lower end surface and lower template upper surface is greater than middle buried water stop thickness, the bottom of lower template is connected on the car by second hinge seat, supporting rod seat one end is vertically fixed on the trolley below lower template, the other end is hinged by the bottom end of the first otic placode and adjustable screw jack, the top of adjustable screw jack is hinged by the second otic placode and cope plate, the one side that cope plate is in contact with two lining concrete is equipped with cork mounting base；The present invention can solve the problems, such as existing waterstop fixed form there are waterstop fixed masses that unstable, working procedure is cumbersome and increases engineering cost.
Description
Technical field
The present invention relates to technical field of tunnel construction, more specifically to buried in a kind of tunnel lining trolley installation
Waterstop plug board mold.
Background technique
In buried rubber fastening band using preceding substantially all coiled storage, be difficult in installation process it is straight, in the construction process
The installation quality of generally existing middle buried water stop is straight, not in the problem of burying.During traditional construction, middle buried water stop
Construction quality rely primarily on the level of operation and sense of responsibility of construction personnel, once construction personnel, which thinks little of technique for fixing, to cause
It now arbitrarily perforates situations such as fixed, arbitrarily truncation connects, is then fixed not when middle buried water stop can be caused to be embedded in concrete
The phenomenon in jail, then occurs that abjection concrete, not placed in the middle, bonding quality is not up to standard, waterstop is by sharp steel again in casting process
Muscle head punctures and other issues, has seriously affected the waterproof effect of waterstop.To solve existing for existing waterstop fixed form
Fixed mass is unstable, working procedure is cumbersome, increases the problem of engineering cost, devises a set of fixation and clamps middle buried water stop
Plug board mold.
Summary of the invention
In view of this, to solve above-mentioned the deficiencies in the prior art, the purpose of the present invention is to provide tunnel lining trolley plus
Buried water stop plug board mold in dress, can solve existing waterstop fixed form there are waterstop fixed masses it is unstable,
The problem of working procedure is cumbersome and increases engineering cost.
To achieve the above object, the technical scheme adopted by the invention is that:
Buried water stop plug board mold in tunnel lining trolley installation, setting on the car, are used for middle buried water stop
Clamp fixed and then be cast in the size positions of two lining Concrete Design requirements, the plug board mold include cope plate, under
The top of template, adjustable screw jack and supporting rod seat, the cope plate and lower template is connected by first hinge seat, and
Gap width between the cope plate lower end surface and lower template upper surface is greater than middle buried water stop thickness, the lower template
Bottom is connected on the car by second hinge seat, and described supporting rod seat one end is vertically fixed on the trolley below the lower template
On, the other end is hinged by the bottom end of the first otic placode and the adjustable screw jack, the adjustable screw jack
Top is hinged by the second otic placode and the cope plate, and the one side that the cope plate is in contact with two lining concrete is pacified equipped with cork
Fill seat.
Further, the number of the first hinge seat is 2 ~ 4, and the first hinge seat is by L-type pin ear I, L-type pin ear
II and pin shaft I form, the L-type pin ear I is arranged on the cope plate, and the L-type pin ear II is arranged in the lower template,
The pin shaft I is and then hinged by the cope plate and lower template by connecting the L-type pin ear I and L-type pin ear II, and makes
The cope plate is that axis is overturn around the lower template with pin shaft I.
Further, the number of the second hinge seat is 2 ~ 4, and the second hinge seat is by direct selling ear I, direct selling ear II
It is formed with pin shaft II, the direct selling ear I is arranged in the lower template, and the direct selling ear II is arranged on the trolley, described
Pin shaft II is and then hinged by the lower template and trolley by by the direct selling ear I and selling ear II directly to households and connecting, and makes the lower die
Plate is overturn by axis of pin shaft II.
Further, the cork for preventing trolley from pouring generation spillage phenomenon is fixed in the cork mounting base.
Further, diagonal brace is equipped between the supporting rod seat and the trolley.
Further, the middle buried water stop with a thickness of 10 ~ 20mm.
The beneficial effects of the present invention are:
Plug board mold of the invention is fixed with trolley, is made of cope plate and lower template, and being reserved between bolster can wear
The gap of middle buried water stop is crossed, steps up to be fixed by cope plate, lower template in use, is poured in concrete
Displacement deformation is not susceptible to during note.It is to be connected by first hinge seat between cope plate and lower template, lower template and trolley
Between connected by second hinge seat, cope plate can be overturn along lower template, and lower template can be overturn along trolley, convenient for into
The switching of row off working state and working condition, when underway buried water stop is fixed, when waterstop is put into cope plate under
After between template, only cope plate need to be overturn by adjusting the length of the adjustable screw jack hinged with cope plate
Waterstop is clamped, the fixed work progress of waterstop is simplified, the fixed construction efficiency of waterstop and quality is improved, can be effectively reduced and apply
Work cost, correspondingly, the plug board mold is also that need to only adjust the length of adjustable screw jack and overturn in demoulding
Template is conducive to improve demoulding speed, improves construction efficiency without dismantling cope plate completely.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the main view of plug board mold；
Fig. 2 is the off working state schematic diagram of plug board mold；
Fig. 3 is the working state schematic representation of plug board mold；
Fig. 4 is cope plate and lower template connection relationship diagram；
Appended drawing reference: 1, trolley, 2, middle buried water stop, 3, two lining concrete, 4, cope plate, 5, lower template, 6, adjustable silk
Bar jack, 7, supporting rod seat, 8, first hinge seat, 801, L-type pin ear I, 802, L-type pin ear II, 803, pin shaft I, 9, second
Hinge seat, 901, direct selling ear I, 902, direct selling ear II, 903, pin shaft II, the 10, first otic placode, the 11, second otic placode, 12, cork peace
Fill seat, 13, cork, 14, diagonal brace.
Specific embodiment
Specific embodiment is given below, to technical solution of the present invention make further it is clear, complete, explain in detail.This
Embodiment is most preferred embodiment based on the technical solution of the present invention, but protection scope of the present invention is not limited to following implementation
Example.
Buried water stop plug board mold in tunnel lining trolley installation is arranged in trolley 1 as depicted in figs. 1 and 2
On, for clamping fixed by middle buried water stop 2 and then being cast in the size positions of two lining concrete, 3 design requirement, can solve
That there are waterstop fixed masses is unstable for certainly existing waterstop fixed form, working procedure is cumbersome and increases asking for engineering cost
Topic.
As shown in Figure 1, the plug board mold includes cope plate 4, lower template 5, adjustable screw jack 6 and support rod
Seat 7, as shown in figure 4, the cope plate 4 is connect with the top of lower template 5 by first hinge seat 8, and 4 lower end of the cope plate
Gap width between 5 upper surface of face and lower template is greater than middle 2 thickness of buried water stop, the thickness of the middle buried water stop 2
For 10 ~ 20mm；Plug board mold and trolley 1 of the invention is fixed, and being reserved between bolster may pass through middle buried water stop
Gap, step up to be fixed by cope plate 4, lower template 5 in use, be not easy in concrete placement
It is subjected to displacement deformation；
As shown in Fig. 2, the number of the first hinge seat 8 is 2 ~ 4, the first hinge seat 8 is by L-type pin ear I 801, L-type pin
Ear II 802 and pin shaft I 803 form, and the L-type pin ear I 801 is arranged on the cope plate 4, and the L-type pin ear II 802 is arranged
In the lower template 5, the pin shaft I 803 is by by the L-type pin ear I 801 and the connection of L-type pin ear II 802, and then by institute
It states cope plate 4 and lower template 5 is hinged, and overturn the cope plate 4 around the lower template 5 with I 803 axis of pin shaft；
As shown in Figure 1, the bottom of the lower template 5 is connected on trolley 1 by second hinge seat 9, the second hinge seat 9
Number is 2 ~ 4, and the second hinge seat 9 is made of direct selling ear I 901, direct selling ear II 902 and pin shaft II 903, the direct selling ear
I 901 are arranged in the lower template 5, the directs selling ear II 902 setting on the trolley 1, the pin shaft II 903 pass through by
The direct selling ear I 901 and direct selling ear II 902 connect, and then the lower template 5 and trolley 1 is hinged, and make the lower template 5
It is axis overturning with pin shaft II 903；
As shown in Figures 2 and 3, described 7 one end of supporting rod seat is vertically fixed on the trolley of 5 lower section of lower template, the other end
Bottom end by the first otic placode 10 and the adjustable screw jack 6 is hinged, between the supporting rod seat 7 and the trolley 1
Equipped with diagonal brace 14；The top of the adjustable screw jack 6 is hinged by the second otic placode 11 and the cope plate 4, it is described on
The one side that template 4 is in contact with two lining concrete 3 is equipped with cork mounting base 12, is fixed in the cork mounting base 12 for preventing
Only trolley 1 pours the cork 13 for generating spillage phenomenon.
It between cope plate 4 and lower template 5 of the invention is connected by first hinge seat 8, between lower template 5 and trolley 1
It is connected by second hinge seat 9, cope plate 4 can be overturn along lower template 5, and lower template 5 can be overturn along trolley 1, be convenient for
Carry out the switching of off working state and working condition；When underway buried water stop 2 is fixed, buried water stop 2 is put into the middle
After between cope plate 4 and lower template 5, it need to only pass through the length of the adjusting adjustable screw jack 6 hinged with cope plate 4
It clamps bolster by waterstop, simplifies the fixed work progress of waterstop, improve the fixed construction efficiency of waterstop and quality, energy
Construction cost is effectively reduced, correspondingly, the plug board mold is also the length that need to only adjust adjustable screw jack 6 in demoulding
Cope plate 4 is spent and overturn, without dismantling cope plate 4 completely, is conducive to improve demoulding speed, improves construction efficiency.
The process that plug board mold of the invention is used to clamp middle buried water stop is as follows:
(1) L-type pin ear I 801, L-type pin ear II 802 are connected with pin shaft I 803, thus cope plate 4 and lower template 5 is hinged, it uses
Pin shaft II 903 will sell ear I 901 directly to households, sell the connection of ear II 902 directly to households, thus lower template 5 and trolley 1 is hinged, make bolster and platform
Vehicle is installed in place, and guarantees the vertical vertical trolley 1 of lower template 5, as shown in Fig. 2, cope plate 4 and lower template 5 are at rollover states at this time
(off working state)；
(2) buried water stop 2 in installation, the vertical operative end surface of the width centreline of buried water stop 2 and lower template 5 in guarantee
It is overlapped；
(3) as shown in figure 3, overturning lower template 5, makes cope plate 4, lower template 5 be in vertical state (working condition)；
(4) adjustable screw jack 6 is installed on supporting rod seat 7, makes adjustable 6 one end of screw jack and supporting rod seat 7
It is connected by the first otic placode 10, the other end is connect by the second otic placode 11 with cope plate 4；
(5) collapsing length for constantly adjusting adjustable screw jack 6 makes to be between cope plate 4, lower template 5 and steps up state；
(6) cork mounting base 12 is welded on cope plate 4, and cork 13 is fixed in cork mounting base 12, completes entire tunnel end
The sealing in face, then casting concrete；
(7) after concrete strength reaches grade, the contracted length of adjustable screw jack 6 is adjusted, pushes cope plate 4, lower die
The overturning of plate 5 is detached from concrete lining working face, and one installation procedure of buried water stop in completion, so circulation are until complete entire
The lining construction in tunnel.
Main feature of the invention, basic principle and advantages of the present invention has been shown and described above.Industry technology
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, the present invention can also have various change according to the actual situation
And improvement, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended
Claims and its equivalent thereof.
Claims (6)
1. buried water stop plug board mold in tunnel lining trolley installation, is arranged on trolley (1), stop for buried by
Water band (2) is clamped fixed and then is cast in the size positions of two lining concrete (3) design requirements, which is characterized in that described stifled
Head plate mold includes cope plate (4), lower template (5), adjustable screw jack (6) and supporting rod seat (7), the cope plate
(4) it is connect with the top of lower template (5) by first hinge seat (8), and on the cope plate (4) lower end surface and lower template (5)
Gap width between end face is greater than middle buried water stop (2) thickness, and the bottom of the lower template (5) passes through second hinge seat
(9) it is connected on trolley (1), described supporting rod seat (7) one end is vertically fixed on the trolley below the lower template (5), separately
One end is hinged by the first otic placode (10) and the bottom end of the adjustable screw jack (6), the adjustable screw jack
(6) hingedly by the second otic placode (11) and the cope plate (4), the cope plate (4) connects with two linings concrete (3) on top
The one side of touching is equipped with cork mounting base (12).
2. buried water stop plug board mold in tunnel lining trolley installation according to claim 1, which is characterized in that
The number of the first hinge seat (8) is 2 ~ 4, and the first hinge seat (8) is by L-type pin ear I (801), L-type pin ear II
(802) it is arranged on the cope plate (4) with pin shaft I (803) composition, the L-type pin ear I (801), the L-type pin ear II
(802) it is arranged on the lower template (5), the pin shaft I (803) is by by the L-type pin ear I (801) and L-type pin ear II
(802) it connects, and then hingedly by the cope plate (4) and lower template (5), and makes the cope plate (4) be with pin shaft I (803)
Axis is overturn around the lower template (5).
3. buried water stop plug board mold in tunnel lining trolley installation according to claim 1, which is characterized in that
The number of the second hinge seat (9) is 2 ~ 4, and the second hinge seat (9) is by direct selling ear I (901), direct selling ear II (902)
It is formed with pin shaft II (903), the direct selling ear I (901) is arranged on the lower template (5), direct selling ear II (902) setting
On the trolley (1), the pin shaft II (903) is by connecting the direct selling ear I (901) and direct selling ear II (902), in turn
Hingedly by the lower template (5) and trolley (1), and make the lower template (5) with pin shaft II (903) for axis overturning.
4. buried water stop plug board mold in tunnel lining trolley installation according to claim 1, which is characterized in that
The cork (13) for preventing trolley (1) from pouring generation spillage phenomenon is fixed in the cork mounting base (12).
5. buried water stop plug board mold in tunnel lining trolley installation according to claim 1, which is characterized in that
Diagonal brace (14) are equipped between the supporting rod seat (7) and the trolley (1).
6. buried water stop plug board mold in tunnel lining trolley installation according to claim 1, which is characterized in that
The middle buried water stop (2) with a thickness of 10 ~ 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910465056.7A CN110359935A (en) | 2019-05-30 | 2019-05-30 | Buried water stop plug board mold in tunnel lining trolley installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910465056.7A CN110359935A (en) | 2019-05-30 | 2019-05-30 | Buried water stop plug board mold in tunnel lining trolley installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110359935A true CN110359935A (en) | 2019-10-22 |
Family
ID=68214928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910465056.7A Pending CN110359935A (en) | 2019-05-30 | 2019-05-30 | Buried water stop plug board mold in tunnel lining trolley installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110359935A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278337A (en) * | 2021-06-24 | 2022-04-05 | 保定市宇航机械科技有限公司 | Novel secondary lining platform truck end mould |
| CN114320366A (en) * | 2021-12-31 | 2022-04-12 | 李经国 | Semi-automatic lining trolley for tunnel and method for pouring lining in tunnel bin by bin |
| CN117988897A (en) * | 2024-03-29 | 2024-05-07 | 中铁九局集团第七工程有限公司 | Plug board capable of automatically filling middle-buried water stop |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0318285U (en) * | 1989-06-29 | 1991-02-22 | ||
| JPH0464696A (en) * | 1990-07-04 | 1992-02-28 | Toda Constr Co Ltd | Tunnel lining method and form device therefor |
| JPH09158496A (en) * | 1995-12-13 | 1997-06-17 | Okabe Co Ltd | Concrete formwork construction method to reinforce existing pillar type structure and its formwork device |
| EP2626509A1 (en) * | 2012-02-08 | 2013-08-14 | Kern Tunneltechnik SA | Formwork assembly |
| CN103775105A (en) * | 2014-02-20 | 2014-05-07 | 中铁十局集团第三建设有限公司 | Double hinge joint turnover type tunnel lining trolley steel end mold |
| CN203685208U (en) * | 2013-12-31 | 2014-07-02 | 中铁十二局集团第二工程有限公司 | End-shaping steel template for double-lining trolley for tunnel |
| JP2016030967A (en) * | 2014-07-29 | 2016-03-07 | 鹿島建設株式会社 | Framework device of lining concrete and construction method of lining concrete |
| CN205977242U (en) * | 2016-06-24 | 2017-02-22 | 中铁十八局集团第五工程有限公司 | Be used for two lining platform truck end steel limit waterstop anchor clamps in tunnel |
| CN206016827U (en) * | 2016-08-12 | 2017-03-15 | 福州市顺鑫路桥机械设备制造有限公司 | A kind of chassis bulkhead |
| CN210509225U (en) * | 2019-05-30 | 2020-05-12 | 平顶山平煤机煤矿机械装备有限公司 | Plug plate mould for embedded water stop belt additionally mounted on tunnel lining trolley |
-
2019
- 2019-05-30 CN CN201910465056.7A patent/CN110359935A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0318285U (en) * | 1989-06-29 | 1991-02-22 | ||
| JPH0464696A (en) * | 1990-07-04 | 1992-02-28 | Toda Constr Co Ltd | Tunnel lining method and form device therefor |
| JPH09158496A (en) * | 1995-12-13 | 1997-06-17 | Okabe Co Ltd | Concrete formwork construction method to reinforce existing pillar type structure and its formwork device |
| EP2626509A1 (en) * | 2012-02-08 | 2013-08-14 | Kern Tunneltechnik SA | Formwork assembly |
| CN203685208U (en) * | 2013-12-31 | 2014-07-02 | 中铁十二局集团第二工程有限公司 | End-shaping steel template for double-lining trolley for tunnel |
| CN103775105A (en) * | 2014-02-20 | 2014-05-07 | 中铁十局集团第三建设有限公司 | Double hinge joint turnover type tunnel lining trolley steel end mold |
| JP2016030967A (en) * | 2014-07-29 | 2016-03-07 | 鹿島建設株式会社 | Framework device of lining concrete and construction method of lining concrete |
| CN205977242U (en) * | 2016-06-24 | 2017-02-22 | 中铁十八局集团第五工程有限公司 | Be used for two lining platform truck end steel limit waterstop anchor clamps in tunnel |
| CN206016827U (en) * | 2016-08-12 | 2017-03-15 | 福州市顺鑫路桥机械设备制造有限公司 | A kind of chassis bulkhead |
| CN210509225U (en) * | 2019-05-30 | 2020-05-12 | 平顶山平煤机煤矿机械装备有限公司 | Plug plate mould for embedded water stop belt additionally mounted on tunnel lining trolley |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278337A (en) * | 2021-06-24 | 2022-04-05 | 保定市宇航机械科技有限公司 | Novel secondary lining platform truck end mould |
| CN114320366A (en) * | 2021-12-31 | 2022-04-12 | 李经国 | Semi-automatic lining trolley for tunnel and method for pouring lining in tunnel bin by bin |
| CN117988897A (en) * | 2024-03-29 | 2024-05-07 | 中铁九局集团第七工程有限公司 | Plug board capable of automatically filling middle-buried water stop |
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