CN111156029A - Tunnel secondary lining vault pouring construction device and construction method - Google Patents
Tunnel secondary lining vault pouring construction device and construction method Download PDFInfo
- Publication number
- CN111156029A CN111156029A CN201910895815.3A CN201910895815A CN111156029A CN 111156029 A CN111156029 A CN 111156029A CN 201910895815 A CN201910895815 A CN 201910895815A CN 111156029 A CN111156029 A CN 111156029A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- guide wheel
- flexible
- secondary lining
- conveying mechanism
- 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
Images
Classifications
-
- 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
- E21D11/10—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
Abstract
The invention discloses a tunnel secondary lining vault pouring construction device and a corresponding construction method. The device is used for vault pouring, concrete pouring from the top to the bottom of the vault can be realized, a bottom-to-top injection grouting mode is avoided, the generation of cavities, gaps and the like is favorably reduced, and the pouring construction quality is improved.
Description
Technical Field
The invention relates to a tunnel construction device and method, in particular to a vault pouring construction device and method for a tunnel secondary lining.
Background
The secondary lining of the tunnel is relative to primary support, and refers to an inner lining built by reinforced concrete and other materials under the condition that the primary support is already carried out in the tunnel construction, so as to achieve the effects of reinforcing the support, optimizing a route waterproof and drainage system, beautifying the appearance, conveniently setting facilities such as communication, illumination, monitoring and the like. In the secondary lining construction, a reinforcing mesh is erected on the basis of primary support, then an arch-shaped template is supported, and concrete mortar is injected into the reinforcing mesh on the outer side of the template layer by layer from a window on the template. The concrete mortar gradually rises from the two sides of the arch-shaped formwork to the top, and finally the mortar is upwards sprayed into the arch crown through the grouting holes in the top of the formwork until the arch crown is full. However, the last injection mode from bottom to top is easy to generate defects of cavities, gaps and the like, and special detection of the positions of the cavities and the gaps and slurry supplement are needed in the later period, so that the construction is complicated.
Disclosure of Invention
The invention aims to provide a tunnel secondary lining vault pouring construction device which can realize the concrete pouring from the top to the bottom of the vault, avoid the bottom-to-top spraying and grouting mode, be beneficial to reducing the generation of cavities, gaps and the like and improve the pouring construction quality.
In order to achieve the purpose, the invention adopts the following technical scheme:
a tunnel secondary lining vault pouring construction device comprises a flexible pipeline, a pipeline conveying mechanism and a pipeline retracting mechanism, wherein the pipeline conveying mechanism comprises a first guide wheel and a second guide wheel, the flexible pipeline is located between the first guide wheel and the second guide wheel, the first guide wheel and the second guide wheel are provided with grooves for accommodating the flexible pipeline, and the first guide wheel or the second guide wheel is driven by power to rotate and enable the flexible pipeline to move; the pipeline retracting mechanism comprises a winding drum, the flexible pipeline is connected with a guide pipe in the winding drum, the guide pipe penetrates out of the side face of the winding drum, and the flexible pipeline can be wound up by the winding drum.
Preferably, the first guide wheel is connected with a driven gear, the driven gear is connected with a driving gear on the first hydraulic motor, a third guide wheel is further arranged, and the third guide wheel and the second guide wheel are located on the same side of the flexible pipeline and are distributed in a triangular mode together with the first guide wheel.
Preferably, the second guide wheel and the third guide wheel are mounted on the sliding seat through pin shafts, and the gap between the second guide wheel, the third guide wheel and the first guide wheel can be adjusted by adjusting the position of the sliding seat.
Preferably, the winding drum is provided with a slewing bearing and is driven to rotate by a second hydraulic motor, and the guide pipe is a steel pipe with a steel elbow.
Preferably, the pipeline conveying mechanism and the pipeline retracting and releasing mechanism are both arranged on a working platform, and the flexible pipeline passes through the first guide wheel and the second guide wheel from the winding drum through a steering wheel.
Preferably, the pipeline conveying mechanism is installed on the working platform through a first hydraulic cylinder and a rotating support, the first hydraulic cylinder can enable the pipeline conveying mechanism to be lifted to the position above an arched template for secondary lining through the rotating support, the pipeline retracting and releasing mechanism is installed on the working platform through a sliding rail and connected with a second hydraulic cylinder, and the second hydraulic cylinder can drive the pipeline retracting and releasing mechanism to leave or reset to the position below the pipeline conveying mechanism.
The invention also aims to provide a tunnel secondary lining vault pouring construction method, concrete is poured from the top to the bottom of the vault, the generation of cavities, gaps and the like can be reduced, and the pouring construction quality is improved. The method is realized by the following steps:
(a) after the primary support of the tunnel is finished, erecting an arch reinforcing mesh outside the primary support, and arranging a slideway for dredging a flexible pipeline and cavities at intervals in the reinforcing mesh;
(b) the trolley supports the arched template on the outer side of the reinforcing mesh, concrete mortar is injected from windows on two sides of the arched template to complete concrete pouring on two sides of the arched template, and the concrete pouring on the top of the arched template is reserved for the next operation;
(c) a pipeline retracting mechanism and a pipeline conveying mechanism are arranged at one end of the trolley, the pipeline conveying mechanism is lifted to a position higher than the cavity of the arched template, the flexible pipeline is wound on the pipeline retracting mechanism located below the pipeline conveying mechanism and is released continuously, a slurry outlet of the flexible pipeline is conveyed to the other end of the arched template through the slideway by the pipeline conveying mechanism, a port at the other side of the flexible pipeline is connected with a steel pipe, the steel pipe penetrates out of the pipeline retracting mechanism and is connected with a pump, concrete mortar is pumped in by the pump and flows out of the slurry outlet of the flexible pipeline, and the concrete mortar is dispersed to the concrete at the two sides of the poured arched template to the top of the arched template;
(d) the pipeline retraction jack retracts a section of flexible pipeline, the slurry outlet of the flexible pipeline is retracted to a new position to continue slurry discharging and pouring until the top of the arched template is filled again, and the process is continued until all the tops of the arched template are finished and modified after pouring is finished;
(e) the pipeline retracting mechanism leaves the lower part of the pipeline conveying mechanism, the pipeline conveying mechanism descends to leave the cavity, and the reinforcing mesh is supplemented to the cavity;
(f) and (d) moving the trolley to the next work, and fully operating the steps (b) to (d) until the pouring of the whole tunnel is finished.
Preferably, the construction of vault pouring is completed by adopting the construction device for pouring the secondary lining vault of the tunnel.
In the technical device and the corresponding construction method, one end of an outlet of a flexible pipeline can be horizontally moved to one end of an arch formwork along the axial direction of a tunnel at the top of the arch formwork under the clamping of a guide wheel of a conveying mechanism, an external pump pumps concrete mortar into the flexible pipeline from one end of an inlet of a guide pipe and flows out from the outlet, the mortar is dispersed to two sides of the arch crown until the arch crown is filled, then the flexible pipeline is rolled up and contracted for a section under the rotation of a winding drum, the outlet of the flexible pipeline moves to a new arch crown position to continue to discharge the mortar until the upper part of the whole formwork (the length of the formwork along the axial direction of the arch is generally 12 meters) is filled with the mortar, and then the formwork is supported again (namely the next 12 meters) at the next station until the. Compared with the vault injection grouting from bottom to top, the top-down grouting mode can better avoid the generation of cavities and gaps, and is favorable for improving the grouting quality of the vault part.
Drawings
FIG. 1 is a schematic diagram of the apparatus of the present invention;
FIG. 2 is a schematic structural view of a pipeline conveying mechanism;
FIG. 3 is a schematic diagram of the operation of the process of the present invention.
Detailed Description
The invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1, 2 and 3, the construction device for pouring the secondary lining vault of the tunnel comprises a flexible pipeline 1, a pipeline retraction jack 2 and a pipeline conveying mechanism 3. The pipeline conveying mechanism 3 comprises a first guide wheel 301, a second guide wheel 302 and a third guide wheel 303, the second guide wheel 302 and the third guide wheel 303 are located on the same side of the flexible pipeline 1, the first guide wheel 301 is located on the other side of the flexible pipeline 1 and distributed on three vertexes of a triangle together with the second guide wheel 302 and the third guide wheel 303, and grooves for accommodating the flexible pipeline 1 are formed in all the three guide wheels. The first guide wheel 301 is connected with a driven gear 304, a driving gear 306 is arranged on the first hydraulic motor 305, the driving gear 306 is meshed with the driven gear 304, and the first hydraulic motor 305 can drive the first guide wheel 301 to rotate. The second guide wheel 302 and the third guide wheel 303 are mounted on a sliding seat 307 through a pin shaft, the sliding seat 307 is connected with a lead screw 308, the lead screw 308 is mounted on a base 309 of the pipeline conveying mechanism, the sliding seat 307 can be moved by rotating the lead screw 308, and therefore the distance between the second guide wheel 302, the third guide wheel 303 and the first guide wheel 301 is adjusted to be suitable for flexible pipelines 1 with different diameters. The first hydraulic motor drives the first guide wheel 301 to rotate, so that the flexible pipeline 1 moves forwards on the support rod 4 along the length direction of the arched formwork 100 until the outlet of the flexible pipeline 1 is sent to the other end of the arched formwork, and then mortar starts to be sprayed out. A secondary-lined reinforcing mat (not shown) and support rods 4 are previously arranged above the arch formwork 100. Instead of the third guide wheel 303, only the first and second guide wheels may drive the flexible conduit to extend.
The pipeline retracting mechanism 2 comprises a winding drum 201, two side ends of the winding drum 201 are erected on a support 202 through a rotary bearing 203, a worm wheel and a worm are arranged in a shell of the rotary bearing 203, the worm is driven by a second hydraulic motor 204 to rotate, so that the worm wheel is driven to rotate together, and the rotating worm wheel is fixed with the winding drum 201 to drive the winding drum 201 to rotate together. The shell of the slewing bearing is fixed with a steel pipe 101 extending out of the center of the shell, the steel pipe 101 is provided with a steel elbow, one end of the steel pipe penetrates out of the reel surface and is connected with the flexible pipeline 1, and the other end of the steel pipe is connected with a mortar pump. The winding drum rotates to coil the flexible pipeline, so that the slurry outlet of the flexible pipeline is continuously contracted, and slurry is injected from top to bottom from one end of the template to the other end of the template.
Typically, the pipe conveying mechanism 3 is mounted on a trolley working platform (not shown) via a bracket 5 and a first cylinder 6, the bracket 202 is mounted on a sliding rail 9, the sliding rail 9 is mounted on a bracket 8 of the trolley working platform, and the flexible pipe passes from the reel through a first guide wheel and a second guide wheel via a steering wheel 11. The bracket 202 is also connected to the second cylinder 10. In use, the pipe conveyor 3 is lifted by the first cylinder 6 to a height above the arch formwork, which is the position of the cavity reserved for erecting the mesh reinforcement, and the reel 201 is located below the pipe conveyor 3. After grouting is finished on all positions of the arch template, the pipeline retracting mechanism 2 is pulled by the second oil cylinder 10 to move along the sliding rail 9 and leave the lower part of the pipeline conveying mechanism 3, then the first oil cylinder 6 drives the pipeline conveying mechanism 3 to descend, and then a reinforcing steel bar net is supplemented to the cavity position. And moving the trolley working platform to the next station, supporting the arched template again, lifting the pipeline conveying mechanism again, resetting the pipeline retracting and releasing mechanism to the position below the pipeline conveying mechanism again, starting grouting operation again, and circulating the steps.
Therefore, by adopting the construction device, the following construction method for secondary lining vault pouring can be realized:
(a) after the primary support of the tunnel is finished, erecting an arch reinforcing mesh outside the primary support, and arranging a slideway for dredging a flexible pipeline and cavities at intervals in the reinforcing mesh;
(b) the trolley supports the arched template on the outer side of the reinforcing mesh, concrete mortar is injected from windows on two sides of the arched template to complete concrete pouring on two sides of the arched template, and the concrete pouring on the top of the arched template is reserved for the next operation;
(c) a pipeline retracting mechanism and a pipeline conveying mechanism are arranged at one end of the trolley, the pipeline conveying mechanism is lifted to a position higher than the cavity of the arched template, the flexible pipeline is wound on the pipeline retracting mechanism located below the pipeline conveying mechanism and is released continuously, a slurry outlet of the flexible pipeline is conveyed to the other end of the arched template through the slideway by the pipeline conveying mechanism, a port at the other side of the flexible pipeline is connected with a steel pipe, the steel pipe penetrates out of the pipeline retracting mechanism and is connected with a pump, concrete mortar is pumped in by the pump and flows out of the slurry outlet of the flexible pipeline, and the concrete mortar is dispersed to the concrete at the two sides of the poured arched template to the top of the arched template;
(d) the pipeline retraction jack retracts a section of flexible pipeline, the slurry outlet of the flexible pipeline is retracted to a new position to continue slurry discharging and pouring until the top of the arched template is filled again, and the process is continued until all the tops of the arched template are finished and modified after pouring is finished;
(e) the pipeline retracting mechanism leaves the lower part of the pipeline conveying mechanism, the pipeline conveying mechanism descends to leave the cavity, and the reinforcing mesh is supplemented to the cavity;
(f) and (d) moving the trolley to the next work, and fully operating the steps (b) to (d) until the pouring of the whole tunnel is finished.
The above embodiments are only a few illustrations of the inventive concept and implementation, not limitations thereof, and the technical solutions without substantial changes are still within the scope of protection under the inventive concept.
Claims (8)
1. The utility model provides a construction equipment is pour to tunnel secondary lining vault, includes flexible pipeline, pipeline conveying mechanism and pipeline jack, its characterized in that:
the pipeline conveying mechanism comprises a first guide wheel and a second guide wheel, the flexible pipeline is positioned between the first guide wheel and the second guide wheel, the first guide wheel and the second guide wheel are provided with grooves for accommodating the flexible pipeline, and the first guide wheel or the second guide wheel is driven by power to rotate and enable the flexible pipeline to move;
the pipeline retracting mechanism comprises a winding drum, the flexible pipeline is connected with a guide pipe in the winding drum, the guide pipe penetrates out of the side face of the winding drum, and the flexible pipeline can be wound up by the winding drum.
2. The secondary lining vault casting apparatus of claim 1 wherein the first guide wheel is connected to a driven gear which is connected to a drive gear on the first hydraulic motor, and a third guide wheel is provided which is located on the same side of the flexible conduit as the second guide wheel and is triangularly disposed with the first guide wheel.
3. The secondary lining vault casting construction device of claim 2, wherein the second guide wheel and the third guide wheel are mounted on the sliding seat through pin shafts, and the gap between the second guide wheel, the third guide wheel and the first guide wheel can be adjusted by adjusting the position of the sliding seat.
4. The tunnel secondary lining vault casting construction apparatus of claim 1 wherein said drum is mounted with a slew bearing and is rotated by a second hydraulic motor and said conduit is a steel pipe with a steel elbow.
5. The secondary lining vault casting construction of one of the claims 1 to 4 wherein said pipeline transport mechanism and pipeline retraction mechanism are mounted on a working platform, said flexible pipeline passing from said reel through said first and second guide wheels via a steering wheel.
6. The tunnel secondary lining vault casting construction apparatus of claim 5 wherein said pipeline transport mechanism is mounted on said work platform via a first hydraulic cylinder and a swivel bracket, said first hydraulic cylinder being capable of raising said pipeline transport mechanism via said swivel bracket above an arch form for secondary lining, said pipeline retraction mechanism being mounted on said work platform via a sliding track and connected to a second hydraulic cylinder, said second hydraulic cylinder being capable of moving said pipeline retraction mechanism away from or back below said pipeline transport mechanism.
7. A tunnel secondary lining vault pouring construction method is characterized by comprising the following steps:
(a) after the primary support of the tunnel is finished, erecting an arch reinforcing mesh outside the primary support, and arranging a slideway for dredging a flexible pipeline and cavities at intervals in the reinforcing mesh;
(b) the trolley supports the arched template on the outer side of the reinforcing mesh, concrete mortar is injected from windows on two sides of the arched template to complete concrete pouring on two sides of the arched template, and the concrete pouring on the top of the arched template is reserved for the next operation;
(c) a pipeline retracting mechanism and a pipeline conveying mechanism are arranged at one end of the trolley, the pipeline conveying mechanism is lifted to a position higher than the cavity of the arched template, the flexible pipeline is wound on the pipeline retracting mechanism located below the pipeline conveying mechanism and is released continuously, a slurry outlet of the flexible pipeline is conveyed to the other end of the arched template through the slideway by the pipeline conveying mechanism, a port at the other side of the flexible pipeline is connected with a steel pipe, the steel pipe penetrates out of the pipeline retracting mechanism and is connected with a pump, concrete mortar is pumped in by the pump and flows out of the slurry outlet of the flexible pipeline, and the concrete mortar is dispersed to the concrete at the two sides of the poured arched template to the top of the arched template;
(d) the pipeline retraction jack retracts a section of flexible pipeline, the slurry outlet of the flexible pipeline is retracted to a new position to continue slurry discharging and pouring until the top of the arched template is filled again, and the process is continued until all the tops of the arched template are finished and modified after pouring is finished;
(e) the pipeline retracting mechanism leaves the lower part of the pipeline conveying mechanism, the pipeline conveying mechanism descends to leave the cavity, and the reinforcing mesh is supplemented to the cavity;
(f) and (d) moving the trolley to the next work, and fully operating the steps (b) to (d) until the pouring of the whole tunnel is finished.
8. The method for casting a secondary lining vault of a tunnel according to claim 7, wherein the casting of the vault is performed by using the apparatus for casting a secondary lining vault of a tunnel according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910895815.3A CN111156029A (en) | 2019-09-21 | 2019-09-21 | Tunnel secondary lining vault pouring construction device and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910895815.3A CN111156029A (en) | 2019-09-21 | 2019-09-21 | Tunnel secondary lining vault pouring construction device and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111156029A true CN111156029A (en) | 2020-05-15 |
Family
ID=70555749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910895815.3A Pending CN111156029A (en) | 2019-09-21 | 2019-09-21 | Tunnel secondary lining vault pouring construction device and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111156029A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594492A (en) * | 2020-05-27 | 2020-08-28 | 珠海方博科技有限公司 | Control method and system for ground service system |
| CN112228106A (en) * | 2020-09-24 | 2021-01-15 | 北京市市政工程研究院 | Climbing reversing box of hydraulic self-climbing formwork system |
| CN113431601A (en) * | 2021-06-28 | 2021-09-24 | 中铁十一局集团汉江重工有限公司 | A terminal surface gating system for tunnel secondary lining |
-
2019
- 2019-09-21 CN CN201910895815.3A patent/CN111156029A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594492A (en) * | 2020-05-27 | 2020-08-28 | 珠海方博科技有限公司 | Control method and system for ground service system |
| CN112228106A (en) * | 2020-09-24 | 2021-01-15 | 北京市市政工程研究院 | Climbing reversing box of hydraulic self-climbing formwork system |
| CN112228106B (en) * | 2020-09-24 | 2022-09-30 | 北京市市政工程研究院 | Climbing reversing box of hydraulic self-climbing formwork system |
| CN113431601A (en) * | 2021-06-28 | 2021-09-24 | 中铁十一局集团汉江重工有限公司 | A terminal surface gating system for tunnel secondary lining |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111156029A (en) | Tunnel secondary lining vault pouring construction device and construction method | |
| CN105673048B (en) | A kind of self-propelled hydraulic box culvert chassis | |
| CN110370469B (en) | Intelligent concrete cutting trolley | |
| CN107363988B (en) | Hydraulic internal mold toothed rail traveling system and traveling method for prefabricated box girder | |
| CN110528410B (en) | Prefabricated assembly type box culvert prefabrication turning-over device and installation method | |
| CN105909278A (en) | Combined automatic control mold rack and use method | |
| CN113235472A (en) | Concrete placement platform truck is contained to apron | |
| CN108589773A (en) | A kind of construction system and form of construction work of piping lane engineering | |
| CN210599011U (en) | Tunnel secondary lining vault pouring construction device | |
| CN112696211A (en) | Karst tunnel supporting construction and transport mechanism for construction thereof | |
| CN111733872B (en) | Pipe gallery construction method | |
| CN108018856A (en) | A kind of Novel spiral pile-driving machine and its construction method | |
| CN206926070U (en) | A kind of preform production line | |
| CN107288664A (en) | A kind of spray-on tunnel film waterproof construction device and construction method | |
| CN214424508U (en) | Karst tunnel supporting construction and transport mechanism for construction thereof | |
| CN107815971A (en) | High pier is from climbing liquid press to turn over molds system | |
| WO2023173797A1 (en) | Sliding-form construction system and method for spraying concrete in tbm tunnel | |
| CN215860211U (en) | Tunnel lining platform truck terminal surface gating system | |
| CN206030209U (en) | Prefab production line | |
| CN206186075U (en) | Prefab production line | |
| CN206230213U (en) | A kind of underground pipe gallery mounting robot | |
| CN206030164U (en) | Prefab production line | |
| CN206015540U (en) | A kind of box culvert slip form construction device | |
| CN110524687A (en) | A kind of immersed tube tunnel inner formwork system and construction method | |
| CN113309541B (en) | Lining construction method for shield small-radius tunnel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |