CN112160773A - Tunnel lining reinforcing steel bar trolley and lining reinforcing steel bar binding construction method - Google Patents
Tunnel lining reinforcing steel bar trolley and lining reinforcing steel bar binding construction method Download PDFInfo
- Publication number
- CN112160773A CN112160773A CN202011170429.7A CN202011170429A CN112160773A CN 112160773 A CN112160773 A CN 112160773A CN 202011170429 A CN202011170429 A CN 202011170429A CN 112160773 A CN112160773 A CN 112160773A
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- steel bar
- trolley
- tunnel lining
- reinforcing steel
- positioning system
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- 238000010276 construction Methods 0.000 title claims abstract description 69
- 229910001294 Reinforcing steel Inorganic materials 0.000 title claims abstract description 37
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 72
- 239000010959 steel Substances 0.000 claims abstract description 72
- 210000004258 portal system Anatomy 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 230000009467 reduction Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000007306 turnover Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 11
- 238000009415 formwork Methods 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000009954 braiding Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/152—Laggings made of grids or nettings
-
- 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
- E21D11/107—Reinforcing elements therefor; Holders for the reinforcing elements
-
- 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
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (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
The invention discloses a tunnel lining reinforcing steel bar trolley and a lining reinforcing steel bar binding construction method. The tunnel lining steel bar trolley comprises a portal system, a top positioning system and a side construction platform; the top positioning system is arranged at the top of the gantry system and comprises a top telescopic support and an arc-shaped plate which can be lifted through the top telescopic support; the side construction platform is arranged on the side of the portal system and comprises a pedal which is hinged with the side of the portal system and can be turned up and down. The lining steel bar binding construction method adopts the tunnel lining steel bar trolley. By adopting the tunnel lining reinforcing steel bar trolley and the lining reinforcing steel bar binding construction method, the lining reinforcing steel bar binding and lining concrete pouring flow construction can be realized, the template turnover efficiency is improved, and the production efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of tunnel construction, in particular to a tunnel lining reinforcing steel bar trolley and a lining reinforcing steel bar binding construction method.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In the process of building a rail transit system, tunnel engineering is large in quantity and high in difficulty. The most common methods for excavating tunnels include a mining method, an open cut method, and the like. To form a stable arch tunnel, only concrete pouring is not sufficient. Therefore, it is necessary to tie the reinforcing bars arranged in a net shape at the designed position of the tunnel lining before pouring concrete.
In some construction projects, after a steel mould trolley for pouring a lining is built, a steel mould is firstly braided on the steel mould trolley, concrete is poured after the braiding is finished, and the steel mould is removed to enter the next station after the concrete strength reaches the standard. However, the inventors have realized that such embodiments have the following disadvantages.
1. The accurate positioning and the line production cannot be realized: after the lining of the previous plate reaches the formwork removal condition, the formwork can be removed and then the construction of the next plate is carried out, the formwork turnover speed is low, the formwork utilization rate is low, the working efficiency is reduced, the construction speed is low, and the phenomenon of working nesting is easy to occur to a reinforcing steel worker;
2. the construction safety is poor: the steel mould trolley for pouring the lining has a smooth surface, is easy to slip when steel bar binding operation is carried out on the steel mould trolley, and is dangerous in construction operation.
Disclosure of Invention
Aiming at the problems, the invention provides a tunnel lining reinforcing steel bar trolley and a lining reinforcing steel bar binding construction method. Through adopting this tunnel lining cutting reinforcing bar platform truck can realize lining cutting reinforcement and lining cutting concrete placement's flowing water construction, improve template turnover efficiency, improve production efficiency by a wide margin.
The invention discloses a tunnel lining steel bar trolley, which is characterized in that:
the system comprises a gantry system, a top positioning system and a side construction platform;
the top positioning system is arranged at the top of the gantry system and comprises a top telescopic support and a top arc plate which is lifted through the top telescopic support;
the side construction platform is arranged on the side of the portal system and comprises a pedal which is hinged with the side of the portal system and can be turned up and down.
Further, the top telescopic support comprises a hydraulic device and a beam frame, wherein the lower portion of the beam frame is supported on the hydraulic device, and the upper portion of the beam frame abuts against the inner surface of the top arc-shaped plate.
Further, the side part of the gantry system is also provided with a side positioning system with the same or similar structure as the top positioning system.
Furthermore, the portal system comprises two upright columns and a plurality of cross beams erected on the upright columns, inclined struts are arranged between the upright columns and the cross beams, and vertical beams are arranged between the cross beams.
Further, the pedal plate is turned over through the electric hoist.
Furthermore, the tunnel lining steel bar trolley also comprises a travelling mechanism arranged at the bottom of the portal system, and the travelling mechanism comprises a travelling gear train, a reduction gearbox and a motor.
Further, tunnel lining steel bar platform truck still includes establishes the people's ladder at vertical both ends and establishes the interim platform at top arc top.
Based on any one of the tunnel lining reinforcing steel bar trolleys, the invention also discloses a tunnel lining reinforcing steel bar binding construction method, which is characterized in that any one of the tunnel lining reinforcing steel bar trolleys is adopted, and the method comprises the following steps:
step S1, installing a tunnel lining steel bar trolley;
step S2, operating the tunnel lining steel bar trolley to walk and positioning at the current construction station;
step S3, unfolding the side construction platform in place, and binding the side steel bars; jacking the top positioning system in place, and binding top steel bars;
step S4, retracting the side construction platform and the top positioning system;
and S5, circulating the steps S2-S4, and enabling the tunnel lining steel bar trolley to walk to the next station to continue steel bar binding construction.
Further, a tunnel lining reinforcing bar trolley including a side positioning system is employed, the side positioning system is extended into position in step S3 and retracted in step S4.
And further, after the tunnel lining steel bar trolley travels to the next station, pouring lining concrete by adopting a steel mould trolley for pouring lining.
By comprehensively adopting the technical scheme, the invention can obtain the following beneficial effects:
1. before lining concrete is poured, accurate positioning and pre-braiding forming of lining reinforcing steel bars can be achieved, and the working efficiency is improved by 50%;
2. the steel bar temporary storage device has the advantages of low cost, safe and reliable integral structure, capability of temporarily storing steel bars, convenience for personnel to operate, high speed for lifting, stacking and binding the steel bars, high positioning precision, high production efficiency and the like;
3. the method is suitable for open-cut tunnel construction of railways, highways, municipal works and the like, and is suitable for binding arc-shaped steel bars of various section types.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a front view of a tunnel lining rebar trolley in some embodiments;
figure 2 is a side view of a tunnel lining rebar trolley in some embodiments.
Description of reference numerals:
11-longitudinal beam, 12-upright post, 13-cross beam, 14-vertical beam, 15-inclined strut, 16-man ladder, 21-top telescopic bracket, 22-top arc plate, 31-side telescopic bracket, 32-side arc plate, 4-pedal, 51-motor, 52-reduction box and 53-walking wheel train.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
During the construction of the open-cut tunnel secondary lining, the operation of reinforcing steel bars and concrete is usually carried out only by adopting an inner steel mould trolley and an outer steel mould trolley, wherein the binding of the reinforcing steel bars is finished by constructors on the steel mould trolley, and the construction method has the following defects: the steel bars cannot be accurately positioned when being bound, so that the construction speed is low; need be with the help of the steel mould platform truck, influence concrete placement construction progress on the one hand, on the other hand is that the reinforcement of next station need go on again after current station concrete strength is up to standard, seriously influences whole efficiency of construction. Referring to fig. 1-2, the invention discloses a tunnel lining steel bar trolley, which comprises a portal system, a top positioning system and a side construction platform. By adopting the tunnel lining reinforcing steel bar trolley, the reinforcement binding construction and the concrete pouring construction can be separated, the streamlined operation is realized, and the overall production efficiency is improved.
In some embodiments, the gantry system comprises a longitudinal beam 11, vertical columns 12 and a cross beam 13, wherein the cross beam 13 is erected on the two vertical columns 12 to form a portal frame which is erected on the longitudinal beam 11; and, the bracing 15 is equipped with between stand 12 and crossbeam 13, and the vertical beam 14 is equipped with between crossbeam 13 and the crossbeam 13, can form a stable frame construction support system, bears the reinforcing bar weight and other construction loads on the lining cross-section.
In some embodiments, the top positioning system is provided on top of the gantry system, which includes a top telescoping support 21 and a top arc 22 that is raised and lowered by the top telescoping support 21. In at least one embodiment, top telescoping support 21 includes a hydraulic device on which a lower portion of the beam is supported and a beam upper portion that rests against an inner surface of top arc 22. Wherein, the hydraulic device can be power equipment such as a hydraulic oil cylinder, and the bending shape of the top arc-shaped plate 22 is matched with the design of the tunnel lining reinforcing steel bars. The hydraulic oil cylinder jacks the beam frame and the top arc-shaped plate 22, so that the weight of the steel bars can be borne, and the binding positions of the steel bars can be fixed. In at least one embodiment, the beam is adjustable in shape, the top arc 22 has some flexibility, and the curved shape of the top arc 22 can be changed by adjusting the shape of the beam, so that the top positioning system can adapt to tunnel construction with various section structures.
In some embodiments, the side of the gantry system is further provided with a side positioning system having the same or similar structure as the top positioning system. In at least one embodiment, the side positioning system has side telescoping brackets 31 and side arc plates 33, the installation angle is towards the side of the tunnel, and the parts are also adjusted adaptively. The arc-shaped plates of the top positioning system and the side positioning system can be combined into a whole and are matched with the whole section of the tunnel secondary lining so as to be used for binding steel bars.
In some embodiments, a side construction platform is provided at the side of the gantry system, and the side construction platform includes a foot board 4 hinged to the side of the gantry system and capable of being turned up and down. In at least one embodiment, the foot pedal 4 is turned over by an electric hoist. To improve the structural stability of the footrest 4, in at least one embodiment, a footrest brace is provided below the footrest 4 that is removably mounted to the side of the gantry system.
In some embodiments, the tunnel lining rebar trolley also includes a number of ancillary facilities, such as man ladders 16, temporary platforms, and other safety facilities. Wherein, the man-step 16 can be arranged at the two longitudinal ends of the tunnel lining steel bar trolley (namely the longitudinal direction of the tunnel), which is convenient for constructors to walk up and down; the temporary platform can be removably positioned on top of the top arc 22 for temporarily holding materials or tools such as rebar.
In some embodiments, the tunnel lining steel bar trolley further comprises a traveling mechanism arranged at the bottom of the gantry system, and the traveling mechanism specifically comprises a traveling gear train 53, a reduction gearbox 52, a motor 51 and the like. The walking mechanism and the gantry system are connected into a whole, and the force is finally transmitted to the steel rail paved on the ground. The walking movement drives the reduction gearbox 52 and the walking wheel train 53 through the motor 51, and then the walking can vertically walk on the track. In at least one embodiment, the bottom of the gantry system is provided with support jacks for supporting the tunnel lining reinforcing steel trolley in place and disengaging the steel rails to prevent the tunnel lining reinforcing steel trolley from going out of position.
Based on any one of the tunnel lining reinforcing steel bar trolleys, the invention also discloses a tunnel lining reinforcing steel bar binding construction method, which is characterized in that any one of the tunnel lining reinforcing steel bar trolleys is adopted, and the method comprises the following steps:
step S1, installing a tunnel lining steel bar trolley;
step S2, operating the tunnel lining steel bar trolley to walk and positioning at the current construction station;
step S3, unfolding the side construction platform in place, and binding the side steel bars; jacking the top positioning system in place, and binding top steel bars;
step S4, retracting the side construction platform and the top positioning system;
and S5, circulating the steps S2-S4, and enabling the tunnel lining steel bar trolley to walk to the next station to continue steel bar binding construction.
In some embodiments, a tunnel lining rebar trolley is employed that includes a side positioning system that can be extended into position in step S3 and retracted in step S4. It should be noted that the extension sequence of the top positioning system, the side positioning system and the side construction platform is not limited in the invention, and the extension sequence can be flexibly adjusted according to the actual field.
In some embodiments, after the tunnel lining reinforcing steel trolley travels to the next station, lining concrete is poured by using a steel mould trolley for pouring lining.
At least one exemplary embodiment is now provided in connection with the drawings, a detailed description of which is provided in the drawings not intended to limit the scope of the claimed invention, but is merely representative of exemplary embodiments provided in the invention.
Exemplary embodiment 1
Referring to fig. 1-2, the exemplary embodiment relates to a hydraulic telescopic open cut tunnel lining steel bar trolley (steel bar trolley for short), which includes a gantry system, a top positioning system, a side construction platform and a traveling mechanism. The top positioning system comprises a top telescopic support 21 and a top arc plate 22 which is lifted through the top telescopic support 21, and the top telescopic support 31 comprises a hydraulic oil cylinder and a beam frame supported on the hydraulic oil cylinder. The side construction platform is arranged at the side part of the portal system and comprises a pedal plate 4 which is hinged with the side part of the portal system and can be turned over up and down. The traveling mechanism comprises a traveling gear train 53, a reduction gearbox 52, a motor 51 and the like. In the exemplary embodiment, the motor 51 drives the traveling mechanism to drive the steel bar trolley to travel, the top positioning system is used for positioning the steel bars, and constructors stand on the side construction platform to perform steel bar binding.
The use method of the reinforcing bar trolley in the exemplary embodiment comprises the following steps:
1. installation of reinforcing bar trolley
Firstly, paving a track on the ground of a tunnel;
secondly, hoisting and fixing the travelling mechanism;
thirdly, lifting a longitudinal beam 11 of the portal system, placing the longitudinal beam on the traveling mechanism, and connecting and fixing the longitudinal beam by using a bolt;
fourthly, firstly, the upright post 12 and the cross beam 13 of the portal system are spliced into a portal shape in two layers, and then are integrally installed on the longitudinal beam 11;
all bolts of the portal system are fastened and checked;
installing a lateral construction platform on the upright post of the portal system;
seventhly, installing a people ladder 16 and other auxiliary facilities, and matching electric lines;
2. steel bar trolley walks and takes place
Firstly, detecting whether structures of all parts of a steel bar trolley are in place or not, detecting whether bolt connection of all parts is firm or not, detecting that all connection pins are reliable and flexible to rotate, and then carrying out preliminary debugging;
secondly, determining that the rail surface elevation of the working position of the steel bar trolley is correct, and ensuring that the steel rail is symmetrical relative to the central line of the tunnel and the rail surface is flat;
thirdly, the top positioning system and the side construction platform are ensured to be completely contracted, and the electric hoist is hoisted to the clearance of the tunnel by the cantilever on the side surface;
rotating the support jacks (footing jacks) of the gantry system to separate the traveling gear train from the steel rail, and operating a controller button of the traveling mechanism to enable the trolley to automatically travel to a working position under the traction of a motor;
after the steel bar trolley is in place, locking a walking wheel train 53, screwing out the base jacks and tightly supporting the steel rail to prevent the steel bar trolley from moving;
3. construction platform, positioning system, lifting and binding steel bars
Firstly, the side construction platform extends to a proper working position, and a small amount of steel bars are hung on the side construction platform and the platform at the top of the portal system through a lifting mechanism
Jacking the top positioning system to a proper working position, binding lining reinforcing steel bars and firmly positioning;
4. contraction construction platform, positioning system and cantilever hoisting electric hoist
Firstly, after the reinforcement of the current station is bound, the contraction of the side construction platform and the top positioning system can be carried out;
completely retracting the side construction platform and the top positioning system, and moving the end face component into a tunnel clearance;
thirdly, cleaning the reinforcing steel bar trolley to ensure that the reinforcing steel bar trolley is completely in the clearance of the tunnel;
and fourthly, walking to the next station for the next cycle of construction.
By adopting the method, the simultaneous construction operation of the steel bar trolley and the template trolley can be realized, the pouring of the lining concrete of the previous plate can be synchronously performed with the construction of the lining steel bar of the next plate, the circulation within three days is achieved, and the construction period can be shortened by 50%. The working length of one cycle of the reinforcing steel bar trolley construction reaches 12 meters, and the reinforcing steel bar trolley can be suitable for various arch section types, railway tunnels, highway tunnels, various tunnels in power stations and the like.
Exemplary embodiment 2
The present exemplary embodiment differs from exemplary embodiment 1 in that:
in the exemplary embodiment, the side portion of the gantry system is further connected with a side portion positioning system having the same or similar structure as the top portion positioning system, and the top portion positioning system and the side portion positioning system are used in combination, so that a structure matched with the section of the second lining steel bar in the whole tunnel can be formed, and the positioning effect of the steel bar can be further improved.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.
Claims (10)
1. The utility model provides a tunnel lining reinforcing bar platform truck which characterized in that:
the system comprises a gantry system, a top positioning system and a side construction platform;
the top positioning system is arranged at the top of the gantry system and comprises a top telescopic support and a top arc plate which is lifted through the top telescopic support;
the side construction platform is arranged on the side of the portal system and comprises a pedal which is hinged with the side of the portal system and can be turned up and down.
2. The tunnel lining rebar trolley of claim 1, wherein: the top telescopic support comprises a hydraulic device and a beam frame, wherein the lower portion of the beam frame is supported on the hydraulic device, and the upper portion of the beam frame abuts against the inner surface of the top arc-shaped plate.
3. The tunnel lining rebar trolley of claim 1 or 2, wherein: the side part of the gantry system is also provided with a side positioning system with the same or similar structure as the top positioning system.
4. The tunnel lining rebar trolley of claim 1 or 2, wherein: the portal system comprises two upright posts and a plurality of cross beams erected on the upright posts, inclined struts are arranged between the upright posts and the cross beams, and vertical beams are arranged between the cross beams.
5. The tunnel lining rebar trolley of claim 1 or 2, wherein: the pedal plate is turned over through the electric hoist.
6. The tunnel lining rebar trolley of claim 1 or 2, wherein: the gantry crane further comprises a travelling mechanism arranged at the bottom of the gantry system, and the travelling mechanism comprises a travelling gear train, a reduction gearbox and a motor.
7. The tunnel lining rebar trolley of claim 1 or 2, wherein: the device also comprises a man ladder arranged at the two longitudinal ends and a temporary platform arranged at the top of the top arc-shaped plate.
8. A tunnel lining reinforcing steel bar binding construction method, which is characterized in that the tunnel lining reinforcing steel bar trolley of any one of claims 1 to 7 is adopted, and comprises the following steps:
step S1, installing a tunnel lining steel bar trolley;
step S2, operating the tunnel lining steel bar trolley to walk and positioning at the current construction station;
step S3, unfolding the side construction platform in place, and binding the side steel bars; jacking the top positioning system in place, and binding top steel bars;
step S4, retracting the side construction platform and the top positioning system;
and S5, circulating the steps S2-S4, and enabling the tunnel lining steel bar trolley to walk to the next station to continue steel bar binding construction.
9. The tunnel lining reinforcing steel bar binding construction method according to claim 8, wherein: using a tunnel lining rebar trolley including a side positioning system, the side positioning system is extended into position in step S3 and retracted in step S4.
10. The tunnel lining reinforcing steel bar binding construction method according to claim 8, wherein: and after the tunnel lining steel bar trolley travels to the next station, pouring lining concrete by adopting a steel mould trolley for pouring lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011170429.7A CN112160773A (en) | 2020-10-28 | 2020-10-28 | Tunnel lining reinforcing steel bar trolley and lining reinforcing steel bar binding construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011170429.7A CN112160773A (en) | 2020-10-28 | 2020-10-28 | Tunnel lining reinforcing steel bar trolley and lining reinforcing steel bar binding construction method |
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| Publication Number | Publication Date |
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| CN112160773A true CN112160773A (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011170429.7A Pending CN112160773A (en) | 2020-10-28 | 2020-10-28 | Tunnel lining reinforcing steel bar trolley and lining reinforcing steel bar binding construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983481A (en) * | 2021-03-05 | 2021-06-18 | 成都锐龙机械制造有限公司 | Tunnel secondary lining trolley system and concrete continuous pouring method |
| CN113503174A (en) * | 2021-05-31 | 2021-10-15 | 中铁工程服务有限公司 | Precise assembling equipment and construction method for secondary lining steel bars of mountain tunnel |
-
2020
- 2020-10-28 CN CN202011170429.7A patent/CN112160773A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983481A (en) * | 2021-03-05 | 2021-06-18 | 成都锐龙机械制造有限公司 | Tunnel secondary lining trolley system and concrete continuous pouring method |
| CN113503174A (en) * | 2021-05-31 | 2021-10-15 | 中铁工程服务有限公司 | Precise assembling equipment and construction method for secondary lining steel bars of mountain tunnel |
| CN113503174B (en) * | 2021-05-31 | 2023-11-10 | 中铁工程服务有限公司 | Mountain tunnel two-lining steel bar accurate assembly equipment and construction method |
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