CN210599011U - Tunnel secondary lining vault pouring construction device - Google Patents
Tunnel secondary lining vault pouring construction device Download PDFInfo
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- CN210599011U CN210599011U CN201921575040.3U CN201921575040U CN210599011U CN 210599011 U CN210599011 U CN 210599011U CN 201921575040 U CN201921575040 U CN 201921575040U CN 210599011 U CN210599011 U CN 210599011U
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- pipeline
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- secondary lining
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Abstract
The utility model discloses a construction equipment is pour to tunnel secondary lining vault, including flexible pipeline, pipeline conveying mechanism and pipeline jack, pipeline conveying mechanism includes first guide pulley and second guide pulley, and flexible pipeline is by first guide pulley and second guide pulley drive motion, and pipeline jack includes the reel, and flexible pipeline can be rolled up by the reel to the steel pipeline that links to each other with flexible pipeline can be followed the side of reel and worn out. The device can realize the concrete pouring from top to bottom from the vault, has avoided the injection slip casting mode from bottom to top, is favorable to reducing the production of cavity, gap etc. has promoted the construction quality of pouring.
Description
Technical Field
The utility model relates to a tunnel construction equipment particularly relates to a construction equipment is pour to tunnel secondary lining's vault.
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.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a construction equipment is pour to tunnel secondary lining vault, the device can realize from the vault concreting from top to bottom, has avoided from bottom to top injection slip casting mode, is favorable to reducing the production of cavity, gap etc. has promoted the construction quality of building.
In order to achieve the purpose, the utility model 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.
In the technical scheme, one end of an outlet of a flexible pipeline can be horizontally moved to one end of an arch template along the axial direction of a tunnel under the clamping of a guide wheel of a conveying mechanism, concrete mortar is pumped into the flexible pipeline from one end of an inlet of a guide pipe by an external pump and flows out of the outlet, the mortar is dispersed to two sides of an 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 template (the length of the template along the axial direction of the arch is generally 12 meters) is filled with the mortar, and the template is supported again at the next station (namely the next 12 meters) until the construction of the whole tunnel is. 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 structural view of the present invention;
FIG. 2 is a schematic structural view of a pipeline conveying mechanism;
fig. 3 is a schematic view of the present invention.
Detailed Description
The present 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.
The above embodiments are only a few descriptions of the concept and implementation of the present invention, and are not intended to limit the scope of the present invention.
Claims (6)
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921575040.3U CN210599011U (en) | 2019-09-21 | 2019-09-21 | Tunnel secondary lining vault pouring construction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921575040.3U CN210599011U (en) | 2019-09-21 | 2019-09-21 | Tunnel secondary lining vault pouring construction device |
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| Publication Number | Publication Date |
|---|---|
| CN210599011U true CN210599011U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921575040.3U Active CN210599011U (en) | 2019-09-21 | 2019-09-21 | Tunnel secondary lining vault pouring construction device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156029A (en) * | 2019-09-21 | 2020-05-15 | 保定市宇航机械科技有限公司 | Tunnel secondary lining vault pouring construction device and construction method |
| CN114198121A (en) * | 2021-12-15 | 2022-03-18 | 中国电建集团贵阳勘测设计研究院有限公司 | Grouting device for tunnel construction |
-
2019
- 2019-09-21 CN CN201921575040.3U patent/CN210599011U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156029A (en) * | 2019-09-21 | 2020-05-15 | 保定市宇航机械科技有限公司 | Tunnel secondary lining vault pouring construction device and construction method |
| CN114198121A (en) * | 2021-12-15 | 2022-03-18 | 中国电建集团贵阳勘测设计研究院有限公司 | Grouting device for tunnel construction |
| CN114198121B (en) * | 2021-12-15 | 2023-12-19 | 中国电建集团贵阳勘测设计研究院有限公司 | Grouting device for tunnel construction |
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