CN204492832U - A kind of tunnel duct piece rounding device - Google Patents
A kind of tunnel duct piece rounding device Download PDFInfo
- Publication number
- CN204492832U CN204492832U CN201520114806.3U CN201520114806U CN204492832U CN 204492832 U CN204492832 U CN 204492832U CN 201520114806 U CN201520114806 U CN 201520114806U CN 204492832 U CN204492832 U CN 204492832U
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- rounding device
- rounding
- arc
- duct piece
- stiffening rib
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Abstract
The utility model discloses a kind of tunnel duct piece rounding device, comprise multiple rounding device assembly, described rounding device assembly comprises rounding device arc, and described rounding device arc is provided with rounding device stiffening rib, and described rounding device stiffening rib is connected with precompression bringing device; Be provided with outside projection in the middle part of one end of described rounding device arc, be provided with inside groove in the middle part of the other end of rounding device arc, projection and the groove of adjacent rounding device assembly fasten; Multiple rounding device assembly forms circular configuration, matches with section of jurisdiction inwall.First install rounding device outer ring structure, secondly install hydraulic power unit in adjacent rounding device outer shroud junction, the 3rd controls each hydraulic pressure load transfer device applies the effect that different pressure reaches full circle.After the full circle of section of jurisdiction, strengthen maintenance process is carried out to section of jurisdiction, processed rear dismounting rounding device.The beneficial effects of the utility model are: the problem solving metro operation phase section of jurisdiction faulting of slab ends, distortion full circle; Construction technology is simple, flexible.
Description
Technical field
The utility model belongs to construction engineering technical field, is specifically related to a kind of tunnel duct piece rounding device.
Background technology
The peak period built of subway transportation having welcome at home in recent years, along with the growth of the city underground shield tunnel operation time limit, domestic a few cities subway tunnel structure the surrounding enviroment such as to enrich by the preloading on ground, periphery excavation of foundation pit, underground water source and affects subway segment and occurred uneven distortion, lose original structure shape, for later stage strengthen maintenance brings unnecessary trouble.
At present for the section of jurisdiction faulting of slab ends, the metaboly that occur in work progress, general employing carries out full circle process with the rounding device of shield machine one to subway segment.Because shield machine build is huge, cost is high, so this processing method can not be applied to subway segment faulting of slab ends, the distortion of appearance during runing.
Utility model content
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, provides a kind of section of jurisdiction rounding device, can carry out full circle process, and method is simple to the problem such as faulting of slab ends, distortion that subway segment during operation occurs.
For achieving the above object, the utility model adopts following technical proposals:
A kind of tunnel duct piece rounding device, comprise multiple rounding device assembly, described rounding device assembly comprises rounding device curved roof, described rounding device curved roof is provided with rounding device stiffening rib, described rounding device stiffening rib is connected with precompression bringing device, and the stiffening rib of adjacent rounding device assembly is connected by described precompression bringing device; Be provided with outside projection in the middle part of one end of described rounding device curved roof, be provided with inside groove in the middle part of the other end of rounding device curved roof, projection and the groove of adjacent rounding device assembly fasten; Multiple rounding device assembly forms circular configuration, matches with section of jurisdiction inwall.
Described precompression bringing device is shaft-like hydraulic jack.
Described rounding device stiffening rib is arranged on rounding device curved roof along the arc direction of rounding device curved roof.
Described rounding device curved roof both sides are equipped with rounding device stiffening rib.Can install two hydraulic means, jacking force is large, effective.
The vertical sectional shape of described projection and groove is circular arc, is convenient in full circle process, the rotational deformation of rounding device assembly.
Described rounding device curved roof is made up of encased steel plate and inside stuffing, can weight reduction, reduce cost.
The beneficial effects of the utility model are:
1, the problem of metro operation phase section of jurisdiction faulting of slab ends, distortion full circle is solved.
2, equipment is simple, drops into the low cost reducing tunnel duct piece full circle.
3, device assembles is easy, obviously can shorten the construction period.
4, rounding device is made up of several rounding device assembly, and rounding device assembly is identical structure, industrialization can produce, can change the rounding device assembly gone wrong easily.
Accompanying drawing explanation
Fig. 1 is the side view of the utility model rounding device assembly;
Fig. 2 is the elevation cross-sectional view of the utility model rounding device assembly;
Fig. 3 is A-A sectional drawing in Fig. 2;
Fig. 4 is B-B sectional drawing in Fig. 2;
Fig. 5 is C-C sectional drawing in Fig. 2;
Fig. 6 is D-D sectional drawing in Fig. 2;
Fig. 7 is E-E sectional drawing in Fig. 2;
Fig. 8 is the longitudinal sectional view connected between the utility model rounding device assembly;
Fig. 9 is the longitudinal sectional view connected between rounding device assembly after the utility model installs hydraulic jack;
Figure 10 (a)-10 (b) is the utility model rounding device construction way figure; Wherein Figure 10 (a) is the generalized section after the installation of the utility model rounding device assembly, and Figure 10 (b) is the generalized section after the installation of the utility model hydraulic jack;
In figure, the former section of jurisdiction of 1-; 2-rounding device; 2-1 is rounding device arc; 2-2 is rounding device stiffening rib; 2-3 is hydraulic jack installing hole; 2-4 is rounding device assembly connecting hole; 3-rounding device assembly connects pin; 4-hydraulic jack.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Fig. 1-Fig. 7, section of jurisdiction rounding device, comprise multiple rounding device assembly, rounding device assembly comprises rounding device arc 2-1, rounding device stiffening rib 2-2 is arranged on rounding device arc 2-1 along the arc direction of rounding device arc 2-1, rounding device arc, 2-1 both sides are equipped with rounding device stiffening rib 2-2.Rounding device stiffening rib is connected with shaft-like hydraulic jack 4, the rounding device stiffening rib 2-2 of adjacent rounding device assembly is connected by hydraulic jack 4; Be provided with outside projection in the middle part of one end of rounding device arc 2-1, be provided with inside groove in the middle part of the other end of rounding device arc 2-1, projection and the groove of adjacent rounding device assembly fasten; Multiple rounding device assembly forms circular configuration, matches with section of jurisdiction inwall.
Vertical sectional shape that is protruding and groove is circular arc.Rounding device arc 2-1 is made up of encased steel plate and inside stuffing.
As shown in Figure 8, join end to end between the rounding device assembly of rounding device 2 and connect, fastened by protruding and groove, and connect pin 3 through the rounding device assembly connecting hole 2-4 on protruding and groove by rounding device assembly, two rounding device assemblies are fixedly connected with.
As shown in Figure 9, after being fixedly connected with between the rounding device assembly of rounding device 2, hydraulic jack 4 is arranged on the hydraulic jack installing hole 2-3 of the rounding device stiffening rib 2-2 of two adjacent rounding device assemblies.
As shown in Figure 10 (a)-10 (b), the construction method of segment inside tunnel rounding device is as follows:
The first step: need the position of full circle to process to section of jurisdiction, comprises cleaning breaking concrete, dead-end fracture, carries out injecting treatment to cavity after wall;
Second step: install rounding device assembly, rounding device assembly connects pin 3 by rounding device assembly and connects, and temporary fixed;
3rd step: spaced set fixed observer point on rounding device stiffening rib, displacement monitoring changes;
4th step: according to designing requirement, rounding device is installed shaft-like hydraulic jack 4;
Hydraulic jack 4 is arranged on the rounding device stiffening rib 2-2 of two adjacent rounding device assemblies, by the flexible shape controlling rounding device of hydraulic jack 4, and then by rounding device pushing tow section of jurisdiction inner surface, makes the section of jurisdiction restoration designing requirement of distortion;
5th step: according to designing requirement, applies different pressure to hydraulic jack 4, and Real-Time Monitoring change in displacement situation;
6th step: according to monitoring result, when section of jurisdiction returns to the distortion of designing requirement, keeps hydraulic jack 4 pressure;
7th step: to needing the position reinforced to carry out consolidation process, noting the deformation simultaneously will monitoring section of jurisdiction in reinforcing process, adjusting hydraulic jack 4 hydraulic coupling at any time, makes section of jurisdiction keep stable;
8th step: after having reinforced, reaches after intensity until ruggedized construction, removes rounding device structure.
By reference to the accompanying drawings detailed description of the invention of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (7)
1. a tunnel duct piece rounding device, is characterized in that, comprises multiple rounding device assembly, and described rounding device assembly comprises rounding device curved roof, and described rounding device curved roof is provided with rounding device stiffening rib, and described rounding device stiffening rib is connected with precompression bringing device; Be provided with outside projection in the middle part of one end of described rounding device curved roof, be provided with inside groove in the middle part of the other end of rounding device curved roof, projection and the groove of adjacent rounding device assembly fasten; Multiple rounding device assembly forms circular configuration, matches with section of jurisdiction inwall.
2. tunnel duct piece rounding device as claimed in claim 1, it is characterized in that, described precompression bringing device is shaft-like hydraulic jack.
3. tunnel duct piece rounding device as claimed in claim 1, it is characterized in that, described rounding device stiffening rib is arranged on rounding device arc along the arc direction of rounding device arc.
4. tunnel duct piece rounding device as claimed in claim 1, it is characterized in that, described rounding device arc both sides are equipped with rounding device stiffening rib.
5. tunnel duct piece rounding device as claimed in claim 1, it is characterized in that, the vertical sectional shape of described projection and groove is circular arc.
6. tunnel duct piece rounding device as claimed in claim 1, it is characterized in that, described rounding device arc is made up of encased steel plate and inside stuffing.
7. tunnel duct piece rounding device as claimed in claim 1, it is characterized in that, the stiffening rib of adjacent rounding device assembly is connected by described precompression bringing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520114806.3U CN204492832U (en) | 2015-02-16 | 2015-02-16 | A kind of tunnel duct piece rounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520114806.3U CN204492832U (en) | 2015-02-16 | 2015-02-16 | A kind of tunnel duct piece rounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204492832U true CN204492832U (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520114806.3U Active CN204492832U (en) | 2015-02-16 | 2015-02-16 | A kind of tunnel duct piece rounding device |
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| Country | Link |
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| CN (1) | CN204492832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675413A (en) * | 2015-02-16 | 2015-06-03 | 济南轨道交通集团有限公司 | Tunnel segment rounder and using method thereof |
-
2015
- 2015-02-16 CN CN201520114806.3U patent/CN204492832U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675413A (en) * | 2015-02-16 | 2015-06-03 | 济南轨道交通集团有限公司 | Tunnel segment rounder and using method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |