CN203420713U - Shield launching tunnel portal extension steel ring - Google Patents
Shield launching tunnel portal extension steel ring Download PDFInfo
- Publication number
- CN203420713U CN203420713U CN201320417259.7U CN201320417259U CN203420713U CN 203420713 U CN203420713 U CN 203420713U CN 201320417259 U CN201320417259 U CN 201320417259U CN 203420713 U CN203420713 U CN 203420713U
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- China
- Prior art keywords
- plate
- ring flat
- steel loop
- ring
- steel ring
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- Expired - Fee Related
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Abstract
The utility model discloses a shield launching tunnel portal extension steel ring. The shield launching tunnel portal extension steel ring is characterized in that the steel ring comprises a steel body (1), the width of the steel ring body (1) is at least 45mm, one end of the steel ring body (1) is connected with a first ring plate (2), the inner diameter of the first ring plate (2) is equal to that of the steel ring body (1), the outer diameter of the first ring plate (2) is larger than the diameter of the steel ring body (1), the first ring plate (2) is fixedly connected with a second ring plate (3), the thickness of the second ring plate (3) is two times that of the first ring plate (2), and the second ring plate (3) is embedded into a wall of a tunnel portal. The shield launching tunnel portal extension steel ring is simple in structure, indigenous in design, and capable of avoiding dust pollution caused by manual pile breaking and improving the work efficiency of a shield tunneling machine.
Description
Technical field
The utility model relates to a kind of shield launching portal supplementary structure, and particularly a kind of shield launching portal extends steel loop.
Background technology
In subway shield tunnel construction, starting of shield machine is a considerable link, in construction in the past, because the distance between portal sealing and face is very near, in order to make the cutterhead of shield machine when carrying out broken pile, can not damage cord rubber tile, before broken pile, conventionally will adopt manually-operated mode that face is abolished to 60cm dark, to guarantee the space of cutterhead rotation.But, artificial broken pile construction can produce a large amount of dust, and because plate in the station of missing the stop seals often, dust cannot be discharged smoothly, air quality in station is sharply declined, have a strong impact on workman's construction environment, also can affect the assembly working of technique on shield machine's station-crossing, thereby seriously delay the progress of technique on shield machine's station-crossing construction simultaneously.Therefore need now a kind of new structure that can address the above problem or device.
Summary of the invention
The utility model is in order to solve the existing above-mentioned deficiency of prior art, propose a kind of simple in structure, design ingenious, the dust pollution of avoiding artificial broken pile to cause, and the shield launching portal that can improve shield machine operating efficiency extends steel loop.
Technical solution of the present utility model is: a kind of shield launching portal extends steel loop, it is characterized in that: described steel loop comprises steel loop body 1, the width of steel loop body 1 is at least 45mm, one end of steel loop body 1 is connected with the first ring flat-plate 2, the internal diameter of the first ring flat-plate 2 is identical with steel loop body 1, the external diameter of the first ring flat-plate 2 is greater than the diameter of steel loop body 1, be fixedly connected with the second ring flat-plate 3 with the first ring flat-plate 2, the thickness of the second ring flat-plate 3 is the twice of the first ring flat-plate 2 thickness, and the second ring flat-plate 3 is embedded in portal body of wall.
On described steel loop body 1, be evenly distributed with a plurality of gussets 4, and on circumference, differ 15 degree between adjacent gusset 4.
Described steel loop body 1 and the thickness of the first ring flat-plate 2 are 10mm, the internal diameter of the diameter of steel loop body 1, the first ring flat-plate 2 and the second ring flat-plate 3 is 6500mm, and the external diameter of the first ring flat-plate 2 and the second ring flat-plate 3 is 6800mm, and the thickness of gusset 4 is 20mm, length is 450mm, and width is 115mm.
Compared with the existing technology, tool has the following advantages the utility model:
The shield launching portal of this kind of form of structure extends steel loop, it is simple in structure, it is ingenious to design, it is for the existing defect of existing construction technology, on portal, be provided with an outward extending steel loop, so just exempted artificial broken pile working procedure in traditional work progress, the problem that has fundamentally solved the interior dust in station in the work progress that misses the stop, when improving workman's construction operation environment, can also improve the construction speed of technique on shield machine's station-crossing; In the mode of portal extension steel loop replacement Traditional Man broken pile, can also reduce the cost of shield-tunneling construction, and site operation is convenient simultaneously; Therefore can say that portal extends steel loop and in subway shield tunnel construction, has higher practicality, be particularly suitable for applying in the art, its market prospects are very wide.
Accompanying drawing explanation
Fig. 1 is the top view of the utility model embodiment.
Fig. 2 is that the A of Fig. 1 is to view.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described.As shown in Figure 1 and Figure 2: a kind of shield launching portal extends steel loop, it comprises steel loop body 1, the width of this steel loop body 1 is at least 45mm, the internal diameter that one end of steel loop body 1 is connected with the first ring flat-plate 2, the first ring flat-plates 2 is identical with steel loop body 1, and the external diameter of the first ring flat-plate 2 is greater than the diameter of steel loop body 1, form a step-like ring flat-plate, the thickness that is fixedly connected with the second ring flat-plate 3, the second ring flat-plates 3 with the first ring flat-plate 2 is the twice of the first ring flat-plate 2 thickness, and the second ring flat-plate 3 is embedded in portal body of wall.In order to strengthen bulk strength, on steel loop body 1, be also evenly distributed with a plurality of gussets 4, and on circumference, differ 15 degree between adjacent gusset 4.The thickness of above-mentioned steel loop body 1 and the first ring flat-plate 2 is 10mm, therefore the thickness of the second ring flat-plate 3 is 20mm, the internal diameter of the diameter of steel loop body 1, the first ring flat-plate 2 and the second ring flat-plate 3 is 6500mm, the external diameter of the first ring flat-plate 2 and the second ring flat-plate 3 is 6800mm, the thickness of gusset 4 is 20mm, length is 450mm, and width is 115mm.
The shield launching portal of the utility model embodiment extends steel loop, pre-buried the second ring flat-plate 3 in portal body of wall, and be fixedly connected sequentially thus the first ring flat-plate 2 and steel loop body 1, consideration in bulk strength, on steel loop body 1, be also provided with gusset 4, gusset 4 is connected with the first ring flat-plate 2 with steel loop body 1 simultaneously, its existence is equivalent to the protruding annular canister of portal body of wall, the cutterhead rotation that this annular canister is shield machine provides space, has therefore also avoided the variety of problems that in traditional handicraft, artificial broken pile construction produces.
Claims (3)
1. a shield launching portal extends steel loop, it is characterized in that: described steel loop comprises steel loop body (1), the width of steel loop body (1) is at least 45mm, one end of steel loop body (1) is connected with the first ring flat-plate (2), the internal diameter of the first ring flat-plate (2) is identical with steel loop body (1), the external diameter of the first ring flat-plate (2) is greater than the diameter of steel loop body (1), be fixedly connected with the second ring flat-plate (3) with the first ring flat-plate (2), the thickness of the second ring flat-plate (3) is the twice of the first ring flat-plate (2) thickness, and the second ring flat-plate (3) is embedded in portal body of wall.
2. shield launching portal according to claim 1 extends steel loop, it is characterized in that: on described steel loop body (1), be evenly distributed with a plurality of gussets (4), and on circumference, differ 15 degree between adjacent gusset (4).
3. shield launching portal according to claim 2 extends steel loop, it is characterized in that: described steel loop body (1) and the thickness of the first ring flat-plate (2) are 10mm, the internal diameter of the diameter of steel loop body (1), the first ring flat-plate (2) and the second ring flat-plate (3) is 6500mm, the external diameter of the first ring flat-plate (2) and the second ring flat-plate (3) is 6800mm, the thickness of gusset (4) is 20mm, length is 450mm, and width is 115mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320417259.7U CN203420713U (en) | 2013-07-15 | 2013-07-15 | Shield launching tunnel portal extension steel ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320417259.7U CN203420713U (en) | 2013-07-15 | 2013-07-15 | Shield launching tunnel portal extension steel ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203420713U true CN203420713U (en) | 2014-02-05 |
Family
ID=50019812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320417259.7U Expired - Fee Related CN203420713U (en) | 2013-07-15 | 2013-07-15 | Shield launching tunnel portal extension steel ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203420713U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397892A (en) * | 2013-07-15 | 2013-11-20 | 中铁十三局集团有限公司 | Shield starting tunnel portal extension steel ring |
| CN103982194A (en) * | 2014-06-04 | 2014-08-13 | 北京建筑大学 | Method for barrier-free starting of shield tunneling machine |
-
2013
- 2013-07-15 CN CN201320417259.7U patent/CN203420713U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397892A (en) * | 2013-07-15 | 2013-11-20 | 中铁十三局集团有限公司 | Shield starting tunnel portal extension steel ring |
| CN103982194A (en) * | 2014-06-04 | 2014-08-13 | 北京建筑大学 | Method for barrier-free starting of shield tunneling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20210715 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |