CN108386206A - A kind of horizontal hole lining trolley in low damage formula tunnel - Google Patents
A kind of horizontal hole lining trolley in low damage formula tunnel Download PDFInfo
- Publication number
- CN108386206A CN108386206A CN201810001694.9A CN201810001694A CN108386206A CN 108386206 A CN108386206 A CN 108386206A CN 201810001694 A CN201810001694 A CN 201810001694A CN 108386206 A CN108386206 A CN 108386206A
- Authority
- CN
- China
- Prior art keywords
- turnbarrel
- trolley
- low damage
- inner sleeve
- lining trolley
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- 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
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 238000004080 punching Methods 0.000 claims abstract description 24
- 230000003028 elevating effect Effects 0.000 claims abstract description 18
- 230000014759 maintenance of location Effects 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012857 repacking Methods 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Handcart (AREA)
Abstract
The invention discloses a kind of horizontal hole lining trolleys in low damage formula tunnel, the lining trolley includes punching block grillage, trolley crossbeam, trolley column, running gear and elevating mechanism, the running gear includes low damage system, traveling vehicle frame, the motor being fixed on the traveling vehicle frame, the motor-driven driving wheel and the driven wheel being fixed on traveling vehicle frame, the low damage system includes turnbarrel, inner sleeve, core disk and retention mechanism, the core disk is set at the top of traveling vehicle frame and is fixedly connected with turnbarrel, the turnbarrel is rotatablely connected with its internal inner sleeve, the inner sleeve is fixedly connected with trolley column, the retention mechanism includes the connecting rod being connected on the outside of turnbarrel, the connecting rod other end is connected on punching block grillage.The present invention can realize the steering procedure of Lateral Hole liner platform building cart by low damage system, and have the advantages that easy to operate, reliable and stable.
Description
Technical field
The present invention relates to the horizontal hole lining trolleys in constructing tunnel facilities and equipment field more particularly to a kind of low damage formula tunnel.
Background technology
In constructing tunnel, general major long tunnel can all design Lateral Hole, to ensure that tunnel is in an emergency
When vehicle can be turned in Tunnel.Therefore, it is necessary to the lining trolleys to tunnel Lateral Hole to carry out Technology design, because of tunnel
The cross dimensions of road Lateral Hole is smaller than the cross dimensions of tunnel major project, and tunnel Lateral Hole generally with tunnel
Main body hole intersects vertically, and therefore, how Lateral Hole lining trolley turns to walking, just becomes one up for solution
Technical barrier.
Invention content
The purpose of the present invention is to provide a kind of horizontal hole lining trolleys in low damage formula tunnel, are realized and are grasped by low damage system
The steering procedure for making simple, reliable and stable Lateral Hole liner platform building cart, to solve above-mentioned the problems of the prior art.
For achieving the above object, the present invention adopts the following technical scheme that：
The present invention provides a kind of horizontal hole lining trolley in low damage formula tunnel, the lining trolley includes punching block grillage, platform
Car crossbeam, trolley column, running gear and elevating mechanism, the elevating mechanism are set to lining trolley and the steel at the top of lining trolley
Between template frame, the running gear includes low damage system, traveling vehicle frame, the motor being fixed on the traveling vehicle frame, institute
The driven wheel stated motor-driven driving wheel and be fixed on traveling vehicle frame, the low damage system include turnbarrel, inner sleeve,
Core disk and retention mechanism, the core disk are set at the top of traveling vehicle frame and are fixedly connected with turnbarrel, and the core disk includes fixing
In on traveling vehicle frame locking plate, be fixed on the terminal pad and clamping screw of turnbarrel bottom, the clamping screw will be even
Disk is connect to be fixedly connected on the locking plate, the terminal pad is fixedly connected with turnbarrel, the turnbarrel with its inside
Inner sleeve rotation connection, connected by bearing between the turnbarrel and inner sleeve, corresponding axis be equipped in the turnbarrel
Bearing, the inner sleeve bottom end are embedded in the bearing inner race, and the inner sleeve is fixedly connected with trolley column, the retention mechanism packet
The connecting rod being connected on the outside of turnbarrel is included, the connecting rod other end is connected on punching block grillage, the connecting rod
Part is rigidly connected with punching block plate, turnbarrel.
As the present invention to the preferred of said program, the terminal pad is connected through a screw thread fixation with turnbarrel, described
Inner sleeve is connected through a screw thread fixation with trolley column.This kind of structure can easily dismantle terminal pad and turnbarrel, and
Inner sleeve and trolley column are dismantled, to facilitate the whole maintenance work for completing trolley.
As the present invention to the preferred of said program, the driven wheel is connect with driving wheel by chain or belt transmission.
As the present invention to the preferred of said program, the terminal pad is welded and fixed with turnbarrel, the inner sleeve and platform
Stay is welded and fixed.This kind of structure its connection is more secured, can keep the preferable monolithic stability of trolley in use
Property.
As the present invention to the preferred of said program, the punching block grillage corresponds to the connecting rod equipped with the first connection steel
Plate, the turnbarrel outside are equipped with the second junction steel plate, and the connecting rod connect steel with the first junction steel plate, second respectively
Crab bolt connects.
As the present invention to the preferred of said program, the turnbarrel is extended with integrally formed first screw thread outward
Sleeve, the steel form are provided with corresponding second screw shell, and the connecting rod both ends are respectively equipped with corresponding screw thread and connect
Connect end.
As the present invention to the preferred of said program, the elevating mechanism is lifting cylinder.
As the present invention to the preferred of said program, the motor is electromagnetic braking motor.
The beneficial effects of the present invention are：During specific steering operation, first operating elevating mechanism will serve as a contrast the present invention
Platform building cart lifts, and by the way that turnbarrel and core disk connected to it are rotated 90 °, drives running gear to turn to, is then laid with vehicle
Lateral rail in the horizontal hole of row, operation elevating mechanism decline lining trolley so that after walking mechanism is agreed with lateral rail, i.e.,
Steering procedure is completed, lining trolley realizes transverse shifting.In above-mentioned steering procedure, it is connected to punching block grillage and turnbarrel
Between connecting rod as retention mechanism, before steering, connecting rod can keep the steady traveling of lining trolley, turn to
In the process, connecting rod and turnbarrel junction are opened so that after turnbarrel completes steering operation, then by connecting rod
It is fixed with turnbarrel, so that turning to the running gear completed continues held stationary travel condition.Therefore, the present invention can
The steering procedure of lining trolley is efficiently completed during constructing tunnel, and have the advantages that it is easy to operate, reliable and stable,
In addition, the low damage system of the present invention can be combined with existing lining trolley, repacking is at low cost, and valence is applied with larger
Value.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the horizontal hole lining trolley in low damage formula tunnel in the present invention.
Fig. 2 is the steering state schematic diagram of the horizontal hole lining trolley in heretofore described low damage formula tunnel.
Fig. 3 is the steering state schematic diagram of the horizontal hole lining trolley in low damage formula tunnel in embodiment one.
Fig. 4 is the steering state schematic diagram of the horizontal hole lining trolley in low damage formula tunnel in embodiment two.
Wherein, 1-punching block grillage, 2-trolley crossbeams, 3-trolley columns, 4-upgrading mechanisms, 5-traveling vehicle frames, 6-
Motor, 7-driving wheels, 8-driven wheels, 9-turnbarrels, 10-inner sleeves, 11-core disks, 12-connecting rods, 13-chains
Item, the 14-the first junction steel plate, the 15-the second junction steel plate, 16-lateral rail, 17-locking plates, 18-terminal pads, 19
- clamping screw, 20-bearings, 21-bearing blocks, 22-bearing inner races, 23-belts, the 24-the first screw shell, 25-the
Two screw shells.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one
The horizontal hole lining trolley in a kind of low damage formula tunnel as shown in Figure 1, Figure 2 and Figure 3, the lining trolley includes punching block
Grillage 1, trolley crossbeam 2, trolley column 3, running gear and elevating mechanism 4, the elevating mechanism 4 are set to lining trolley and lining cutting
Between punching block grillage 1 at the top of trolley, the running gear includes low damage system, traveling vehicle frame 5, is fixed on the moving trolley
Motor 6, the motor 6 driving wheel 7 driven on frame 5 and the driven wheel 8 being fixed on traveling vehicle frame 5, the low damage system
System includes turnbarrel 9, inner sleeve 10, core disk 11 and retention mechanism, the core disk 11 be set at the top of traveling vehicle frame 5 and with rotation
Sleeve 9 is fixedly connected, and the core disk 11 includes the locking plate 17 being fixed on traveling vehicle frame 5, is fixed on 9 bottom of turnbarrel
Terminal pad 18 and clamping screw 19, terminal pad 18 is fixedly connected on the locking plate 17 by the clamping screw 19, described
Terminal pad 18 is fixedly connected with turnbarrel 9, and the turnbarrel 9 is rotatablely connected with its internal inner sleeve 10, the rotary sleeve
It is connected by bearing 20 between cylinder 9 and inner sleeve 10, corresponding bearing block 21,10 bottom of the inner sleeve is equipped in the turnbarrel 9
It holds in the embedded bearing inner race 22, the inner sleeve 10 is fixedly connected with trolley column 3, and the retention mechanism includes being connected to rotation
The connecting rod 12 in 9 outside of rotaring sleeve, 12 other end of the connecting rod are connected on punching block grillage 1, the connecting rod 12
It is rigidly connected with punching block plate 1, turnbarrel 9.
In this example, the terminal pad 18 is connected through a screw thread fixation with turnbarrel 9, and the inner sleeve 10 is vertical with trolley
Column 3 is connected through a screw thread fixation.This kind of structure can easily dismantle terminal pad 18 and turnbarrel 9, and by inner sleeve 10
It is dismantled with trolley column 3, to facilitate the whole maintenance work for completing trolley.
In this example, the driven wheel 8 is sequentially connected with driving wheel 7 by chain 13.
In this example, the punching block grillage 1 corresponds to the connecting rod 12 and is equipped with the first junction steel plate 14, the rotation
The outside of sleeve 9 is equipped with the second junction steel plate 15, the connecting rod 12 respectively with the first junction steel plate 14, the second junction steel plate 15
It is bolted.
In this example, the elevating mechanism 4 is lifting cylinder.
In this example, the motor 6 is electromagnetic braking motor.
This kind of lining trolley realizes the base for lifting and putting down by the elevating mechanism of such as lifting cylinder in use
This process, wherein turnbarrel 9 and inner sleeve 10 realize rotation connection by bearing 20, in 9 upper end opening of turnbarrel, in
Bearing block 21 equipped with installation bearing 22, and bearing block 21 carries the bearing inner race 22 coordinated with 10 bottom end of inner sleeve, to fixation
The rotation connection of turnbarrel 9 and inner sleeve 10 so may be implemented in inner sleeve, and 3 bottom of trolley column and 10 top of inner sleeve are logical in addition
It crosses threaded connection to fix so that lining trolley integrally combines with low damage system, to realize the steering work(of lining trolley
Energy.
Embodiment two
A kind of horizontal hole lining trolley in low damage formula as shown in Figure 1, Figure 2 and shown in Fig. 4 tunnel, the lining trolley includes punching block
Grillage 1, trolley crossbeam 2, trolley column 3, running gear and elevating mechanism 4, the elevating mechanism 4 are set to lining trolley and lining cutting
Between punching block grillage 1 at the top of trolley, the running gear includes low damage system, traveling vehicle frame 5, is fixed on the moving trolley
Motor 6, the motor 6 driving wheel 7 driven on frame 5 and the driven wheel 8 being fixed on traveling vehicle frame 5, the low damage system
System includes turnbarrel 9, inner sleeve 10, core disk 11 and retention mechanism, the core disk 11 be set at the top of traveling vehicle frame 5 and with rotation
Sleeve 9 is fixedly connected, and the core disk 11 includes the locking plate 17 being fixed on traveling vehicle frame 5, is fixed on 9 bottom of turnbarrel
Terminal pad 18 and clamping screw 19, terminal pad 18 is fixedly connected on the locking plate 17 by the clamping screw 19, described
Terminal pad 18 is fixedly connected with turnbarrel 9, and the turnbarrel 9 is rotatablely connected with its internal inner sleeve 10, the rotary sleeve
It is connected by bearing 20 between cylinder 9 and inner sleeve 10, corresponding bearing block 21,10 bottom of the inner sleeve is equipped in the turnbarrel 9
It holds in the embedded bearing inner race 22, the inner sleeve 10 is fixedly connected with trolley column 3, and the retention mechanism includes being connected to rotation
The connecting rod 12 in 9 outside of rotaring sleeve, 12 other end of the connecting rod are connected on punching block grillage 1, the connecting rod 12
It is rigidly connected with punching block plate 1, turnbarrel 9.
In this example, the driven wheel 8 is sequentially connected with driving wheel 7 by belt 23.
In this example, the terminal pad 18 is welded and fixed with turnbarrel 9, and the inner sleeve 10 is welded with trolley column 3
It is fixed.This kind of structure its connection is more secured, can keep the preferable overall stability of trolley in use.
In this example, the turnbarrel 9 is extended with integrally formed first screw shell 24, the punching block outward
Grillage 1 is equipped with corresponding second screw shell 25, and 12 both ends of the connecting rod are respectively equipped with corresponding threaded ends.
In this example, the elevating mechanism 4 is lifting cylinder.
In this example, the motor 6 is electromagnetic braking motor.
Based on the above embodiments one and embodiment two：This kind of lining trolley is first grasped during specific steering operation
Make elevating mechanism 4 to lift lining trolley, by the way that running gear is rotated 90 ° by turnbarrel 9 and core disk 11 connected to it,
Then the lateral rail 16 being laid in Lateral Hole, operation elevating mechanism 4 decline lining trolley so that walking mechanism 4 and cross
After agreeing with to rail 16, that is, steering procedure is completed, lining trolley realizes transverse shifting.In above-mentioned steering procedure, it is connected to
Connecting rod 12 between punching block grillage 1 and turnbarrel 9 is used as retention mechanism, and before steering, connecting rod 12 can be kept
The steady traveling of lining trolley opens connecting rod 12 and 9 junction of turnbarrel so that rotary sleeve in steering procedure
After cylinder 9 completes steering operations, then connecting rod 12 and turnbarrel 9 fixed so that turn to the running gear of completion after continuation of insurance
Maintain an equal level steady travel condition.To complete steering procedure of the lining trolley in Lateral Hole.
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art,
It still can be with technical scheme described in the above embodiments is modified, or is carried out to which part technical characteristic etc.
With replacing, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection domain of invention.
Claims (8)
1. a kind of horizontal hole lining trolley in low damage formula tunnel, the lining trolley includes that punching block grillage, trolley crossbeam, trolley are vertical
Column, running gear and elevating mechanism, the elevating mechanism are set between the punching block grillage at the top of lining trolley and lining trolley,
It is characterized in that, the running gear includes low damage system, traveling vehicle frame, the motor being fixed on the traveling vehicle frame, described
Motor-driven driving wheel and the driven wheel being fixed on traveling vehicle frame, the low damage system include turnbarrel, inner sleeve, core
Disk and retention mechanism, the core disk are set at the top of traveling vehicle frame and are fixedly connected with turnbarrel, and the core disk includes being fixed on
Locking plate on traveling vehicle frame, the terminal pad and clamping screw for being fixed on turnbarrel bottom, the clamping screw will connect
Disk is fixedly connected on the locking plate, and the terminal pad is fixedly connected with turnbarrel, the turnbarrel and its inside
Inner sleeve is rotatablely connected, and is connected by bearing between the turnbarrel and inner sleeve, and corresponding bearing is equipped in the turnbarrel
Seat, the inner sleeve bottom end are embedded in the bearing inner race, and the inner sleeve is fixedly connected with trolley column, and the retention mechanism includes
The connecting rod being connected on the outside of turnbarrel, the connecting rod other end are connected on punching block grillage, the connecting rod
It is rigidly connected with punching block plate, turnbarrel.
2. the horizontal hole lining trolley in a kind of low damage formula tunnel according to claim 1, which is characterized in that the terminal pad with
Turnbarrel is connected through a screw thread fixation, and the inner sleeve is connected through a screw thread fixation with trolley column.
3. the horizontal hole lining trolley in a kind of low damage formula tunnel according to claim 1, which is characterized in that the driven wheel with
Driving wheel is connected by chain or belt transmission.
4. the horizontal hole lining trolley in a kind of low damage formula tunnel according to claim 1, which is characterized in that the terminal pad with
Turnbarrel is welded and fixed, and the inner sleeve is welded and fixed with trolley column.
5. the horizontal hole lining trolley in a kind of low damage formula tunnel according to claim 1, which is characterized in that the punching block grillage
The corresponding connecting rod is equipped with the first junction steel plate, and the second junction steel plate, the connecting rod are equipped on the outside of the turnbarrel
Part is bolted with the first junction steel plate, the second junction steel plate respectively.
6. the horizontal hole lining trolley in a kind of low damage formula tunnel according to claim 1, which is characterized in that the turnbarrel
It is extended with integrally formed first screw shell outward, the steel form is provided with corresponding second screw shell, the company
Extension bar part both ends are respectively equipped with corresponding threaded ends.
7. the horizontal hole lining trolley in a kind of low damage formula tunnel according to claim 1, which is characterized in that the elevating mechanism
For lifting cylinder.
8. the horizontal hole lining trolley in a kind of low damage formula tunnel according to claim 1, which is characterized in that the motor is electricity
Magnetic brake motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810001694.9A CN108386206B (en) | 2018-01-02 | 2018-01-02 | self-steering tunnel transverse tunnel lining trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810001694.9A CN108386206B (en) | 2018-01-02 | 2018-01-02 | self-steering tunnel transverse tunnel lining trolley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108386206A true CN108386206A (en) | 2018-08-10 |
| CN108386206B CN108386206B (en) | 2020-01-31 |
Family
ID=63076924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810001694.9A Expired - Fee Related CN108386206B (en) | 2018-01-02 | 2018-01-02 | self-steering tunnel transverse tunnel lining trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108386206B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080803A (en) * | 2019-04-10 | 2019-08-02 | 中建市政工程有限公司 | Self-walking steering type two-lining template trolley and walking steering method thereof |
| CN111561328A (en) * | 2020-05-25 | 2020-08-21 | 保利长大海外工程有限公司 | Can realize assembled lining cutting platform truck of quick turnover |
| CN112983482A (en) * | 2021-03-25 | 2021-06-18 | 中交隧道工程局有限公司 | Multifunctional variable cross-section lining trolley for tunnel and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH06257182A (en) * | 1992-06-17 | 1994-09-13 | Karl Schaeff Gmbh & Co Mas Fab | Work machine movable by advancing mechanism or wheel driving mechanism |
| CN101265805A (en) * | 2008-04-21 | 2008-09-17 | 中铁十三局集团第四工程有限公司 | Lining trolley in-cavity rapid assembly method |
| CN103541741A (en) * | 2013-11-04 | 2014-01-29 | 中国水利水电第六工程局有限公司 | Steel form carrier bending section lining walking mechanism turning device |
| CN205046481U (en) * | 2015-08-27 | 2016-02-24 | 中铁十五局集团有限公司 | Be used for bridge anticollision barrier template construction hoist and mount dolly |
| CN205063968U (en) * | 2015-10-23 | 2016-03-02 | 云南建工集团有限公司 | A lining cutting platform truck that is used for tunnel section of widening to be under construction |
| CN206522141U (en) * | 2017-03-07 | 2017-09-26 | 中铁工程装备集团有限公司 | A kind of shield machine trolley transfer |
| CN206571502U (en) * | 2017-03-08 | 2017-10-20 | 中国水利水电第十四工程局有限公司 | A kind of constructing tunnel telescoping steel form turns mobile device |
-
2018
- 2018-01-02 CN CN201810001694.9A patent/CN108386206B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06257182A (en) * | 1992-06-17 | 1994-09-13 | Karl Schaeff Gmbh & Co Mas Fab | Work machine movable by advancing mechanism or wheel driving mechanism |
| CN101265805A (en) * | 2008-04-21 | 2008-09-17 | 中铁十三局集团第四工程有限公司 | Lining trolley in-cavity rapid assembly method |
| CN103541741A (en) * | 2013-11-04 | 2014-01-29 | 中国水利水电第六工程局有限公司 | Steel form carrier bending section lining walking mechanism turning device |
| CN205046481U (en) * | 2015-08-27 | 2016-02-24 | 中铁十五局集团有限公司 | Be used for bridge anticollision barrier template construction hoist and mount dolly |
| CN205063968U (en) * | 2015-10-23 | 2016-03-02 | 云南建工集团有限公司 | A lining cutting platform truck that is used for tunnel section of widening to be under construction |
| CN206522141U (en) * | 2017-03-07 | 2017-09-26 | 中铁工程装备集团有限公司 | A kind of shield machine trolley transfer |
| CN206571502U (en) * | 2017-03-08 | 2017-10-20 | 中国水利水电第十四工程局有限公司 | A kind of constructing tunnel telescoping steel form turns mobile device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080803A (en) * | 2019-04-10 | 2019-08-02 | 中建市政工程有限公司 | Self-walking steering type two-lining template trolley and walking steering method thereof |
| CN111561328A (en) * | 2020-05-25 | 2020-08-21 | 保利长大海外工程有限公司 | Can realize assembled lining cutting platform truck of quick turnover |
| CN112983482A (en) * | 2021-03-25 | 2021-06-18 | 中交隧道工程局有限公司 | Multifunctional variable cross-section lining trolley for tunnel and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108386206B (en) | 2020-01-31 |
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