CN110130945A - A kind of contractible joint for scalable steel arch-shelf - Google Patents
A kind of contractible joint for scalable steel arch-shelf Download PDFInfo
- Publication number
- CN110130945A CN110130945A CN201910516168.0A CN201910516168A CN110130945A CN 110130945 A CN110130945 A CN 110130945A CN 201910516168 A CN201910516168 A CN 201910516168A CN 110130945 A CN110130945 A CN 110130945A
- Authority
- CN
- China
- Prior art keywords
- guide rail
- shelf
- profile steel
- welded
- wing plate
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 93
- 239000010959 steel Substances 0.000 title claims abstract description 93
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 2
- 238000009826 distribution Methods 0.000 abstract description 2
- 239000011435 rock Substances 0.000 description 6
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
- E21D11/22—Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural 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 present invention relates to be related to Tunnel Engineering construction technique field, and in particular to a kind of contractible joint for scalable steel arch-shelf.A kind of contractible joint for scalable steel arch-shelf of the present invention, for the scalable steel arch-shelf designed and produced with H profile steel, provide a kind of contractible joint, two H profile steels are installed at hollow guide rail both ends, one can slide along guide rail, and another is welded and fixed, on the one hand, the function of steel arch-shelf " after first soft just " is realized, and the shrinkage of steel arch-shelf is controllable；On the other hand, so that overall structural strength distribution is average, biggish yield deformation will not occur for junction portion, and structural strength is reliable in sliding deformation process, safer.
Description
Technical field
The present invention relates to Tunnel Engineering construction technique fields, and in particular to a kind of contractibility for scalable steel arch-shelf connects
Head.
Background technique
In constructing tunnel, when to high-ground stress constructing tunnel, the problem of extrusion pressing type surrounding rock supporting is usually faced.To extruding
The supporting of type country rock needs after steel arch-shelf is mounted on tunnel surrounding, to need guaranteeing using flexible support, certain rigid
Under the premise of degree, allow steel arch-shelf first with surrouding rock deformation and to contract, so that country rock gives full play to bearing capacity and reduces ground
Stress.After country rock crustal stress is reduced to a certain amount of, if continuing that steel arch-shelf is allowed to be deformed inward, crustal stress can also be will increase, institute
With, it is necessary to when country rock crustal stress is reduced to smaller, carry out the biggish supporting of rigidity.I.e. steel arch-shelf needs to realize " after first soft just "
Function.
There is the example for devising scalable steel arch-shelf using H profile steel in the country at present.But with H profile steel design and produce can
Flexible steel arch-shelf after whole compression, can make steel arch-shelf joint generate and slide, and slipping center tap place bending moment
It increased dramatically, often will cause H profile steel junction portion and biggish yield deformation occurs, so that junction portion becomes entire steel arch
The weak load-bearing point of frame, reliability is not high, and security risk is very big.
Summary of the invention
The technical problem to be solved by the present invention is not conformed to the design that H profile steel designs and produces the connector of scalable steel arch-shelf
Reason after steel arch-shelf is integrally pressurized, can make steel arch-shelf joint generate sliding, and slipping center tap place bending moment is sharply
Increase, will cause H profile steel junction portion and biggish yield deformation occurs, so that junction portion becomes the stress of entire steel arch-shelf
Weak spot, reliability is not high, and security risk is very big.
To realize the above-mentioned technical purpose, the present invention adopts the following technical scheme:
The guide rail of H profile steel shape as described below is made of two wing plates and a web, with H in the prior art
Fashioned iron is identical, but distinguishes the structure for being only that the guide rail is boring, therefore be defined as in the following description hollow
H profile steel shape guide rail.
A kind of contractible joint for scalable steel arch-shelf of the present invention, the guide rail including hollow H profile steel shape, guide rail
Both ends one end inserted with the first H profile steel and the second H profile steel respectively, and the first H profile steel and the second H profile steel maintain in guide rail
Certain interval.
Two wing plates of the guide rail are located at the insertion end of the first H profile steel and are provided with two along the extending direction of wing plate
Band internal thread through-hole is arranged, two column through-holes on one of wing plate are arranged on the outside of wing plate, and two column on another wing plate are logical
Hole setting is screwed into the through-hole on guide rail on the inside of wing plate, and through screw, and screw fastened is in the first H profile steel, so that the first H
Fashioned iron is close to guide rail inner wall.
Further, nut is welded on each through-hole, first H profile steel is inserted into guide rail one end, then passes through spiral shell
Nail 6 is screwed into inside guide rail 3 with being threadedly engaged on nut 7 and through-hole, and screw 6 is fixed in the first H profile steel 1, so that the first H
Fashioned iron 1 is close to 3 inner wall of guide rail.
Preferably, which uses welded nut in the prior art.
Further, two wing plates of the first H profile steel insertion guide rail one end are welded with increasing nog plate, one of increasing nog plate
It is welded on the outside of one of wing plate, wherein two pieces increase nog plates and are welded on the inside of another wing plate and symmetrical with web.Increase mill
Plate surface is coarse, so that increasing between nog plate and guide rail has biggish frictional force.
It is welded with backing plate on two wing plates of the second H profile steel insertion guide rail one end, one of backing plate is welded on
The outside of one of wing plate, wherein two pieces of backing plates are welded on the inside of another wing plate and symmetrical with web, and backing plate is welded on
The inner wall of guide rail, on the one hand, so that the second H profile steel is fixed in guide rail by backing plate；On the other hand, so that the second H profile steel and
First H profile steel is in same level.
Beneficial effects of the present invention: a kind of contractible joint for scalable steel arch-shelf of the present invention is set for H profile steel
The scalable steel arch-shelf for counting production, provides a kind of contractible joint, installs two H profile steels at hollow guide rail both ends, and one
It can be slided along guide rail, another is welded and fixed, on the one hand, realize the function of steel arch-shelf " after first soft just ", and the receipts of steel arch-shelf
Contracting amount is controllable；On the other hand, so that overall structural strength distribution is average, biggish yield deformation will not occur for junction portion,
Structural strength is reliable in sliding deformation process, safer.
Detailed description of the invention
Fig. 1 show axonometric drawing of the invention.
Fig. 2 show sectional view of the invention.
Fig. 3 show the schematic diagram of this practical guide rail.
Description of symbols: 1, the first H profile steel；2, increase nog plate；3, guide rail；4, backing plate；5, the second H profile steel；6, screw；7,
Nut.
Specific embodiment
1 to 3 pairs of most highly preferred embodiment of the invention elaborate with reference to the accompanying drawing, a kind of for scalable steel arch-shelf
Contractible joint, the guide rail 3 including hollow H profile steel shape, the both ends of guide rail 3 are respectively inserted with the first H profile steel 1 and the second H-type
One end of steel 5, and the first H profile steel 1 and the second H profile steel 5 maintain certain interval in guide rail.
Two wing plates of the guide rail 3 are located at the insertion end of the first H profile steel 1 and are provided with along the extending direction of wing plate
Two arrange band internal thread through-holes, and two column on the outside of wing plate, on another wing plate are arranged in two column through-holes on one of wing plate
Through-hole is arranged on the inside of wing plate, and is screwed into the through-hole on guide rail 3 by screw 6, and screw 6 is fixed in the first H profile steel 1, makes
It obtains the first H profile steel 1 and is close to 3 inner wall of guide rail.
Further, it is welded with nut 7 on each through-hole, which uses welded nut in the prior art.First
H profile steel 1 is inserted into 3 one end of guide rail, then is screwed into inside guide rail 3 by being threadedly engaged on screw 6 and nut 7 and through-hole, spiral shell
Nail 6 is fixed in the first H profile steel 1, so that the first H profile steel 1 is close to 3 inner wall of guide rail.
Further, two wing plates of the first H profile steel 1 insertion 3 one end of guide rail, which are welded with, increases nog plate 2, one of increasing
Nog plate 2 is welded on the outside of one of wing plate, wherein two pieces of increasing nog plates 2 are welded on the inside of another wing plate and with web pair
Claim.
Second H profile steel 5, which is inserted on two wing plates of 3 one end of guide rail, is welded with backing plate 4, and one of backing plate 4 welds
It connects in the outside of a wherein wing plate, so that the second H profile steel 5 is completely fixed in guide rail 3, wherein two pieces of backing plates 4 are welded on separately
The inside of one wing plate is simultaneously symmetrical with web, and backing plate 4 is welded on the inner wall of guide rail 3.
When steel arch-shelf is compressed by high-ground stress, cause the first H profile steel 1 and the frictional force increased between nog plate 2 and guide rail 3 cannot
It bears crustal stress and is slid along guide rail 3, at this point, steel arch-shelf belongs to flexible support；
After the first H profile steel 1, which slides onto, to be contacted with the second H profile steel 5, since the second H profile steel 5 is welded by backing plate 4 and guide rail 3
Fixation is connect, so the first H profile steel 1 cannot be further continued for sliding, at this point, steel arch-shelf is changed into rigid branch by original flexible support
Shield.
Claims (6)
1. a kind of contractible joint for scalable steel arch-shelf, it is characterised in that: the guide rail (3) including hollow H profile steel shape,
The both ends of guide rail (3) one end inserted with the first H profile steel (1) and the second H profile steel (5), and the first H profile steel (1) and the 2nd H respectively
Fashioned iron (5) maintains certain interval in guide rail；Two wing plates of the guide rail (3) be located at the insertion end of the first H profile steel (1) and
Two column band internal thread through-hole is provided with along the extending direction of wing plate, the two column through-holes setting on one of wing plate exists
On the outside of wing plate, two column through-holes on another wing plate are arranged on the inside of wing plate, and are screwed into leading on guide rail (3) by screw (6)
Hole, screw fastened is on the first H profile steel (1), so that the first H profile steel (1) is close to guide rail (3) inner wall.
2. a kind of contractible joint of scalable steel arch-shelf as described in claim 1, it is characterised in that: outside the guide rail wing plate
Two column through-holes on the inside of side and wing plate are symmetrical with web.
3. a kind of contractible joint of scalable steel arch-shelf as claimed in claim 2, it is characterised in that: welded on each through-hole
It is connected to nut (7), being threadedly engaged on screw (6) and nut (7) and through-hole is screwed into guide rail (3) inside, and screw (6) is fixed on
In first H profile steel (1), so that the first H profile steel (1) is close to guide rail (3) inner wall.
4. a kind of contractible joint of scalable steel arch-shelf as claimed in claim 3, it is characterised in that: the nut (7) is adopted
With welded nut in the prior art.
5. a kind of contractible joint of contractibility steel arch-shelf as described in any right item of claims 1 to 4, it is characterised in that:
Two wing plates of the first H profile steel (1) insertion guide rail (3) one end, which are welded with, increases nog plate (2), one of increasing nog plate (2) welding
In the outside of a wherein wing plate, wherein two pieces increase nog plate (2) and are welded on the inside of another wing plate and symmetrical with web.
6. a kind of contractible joint of contractibility steel arch-shelf as claimed in claim 5, it is characterised in that: the second H profile steel (5) is inserted
Enter and be welded with backing plate (4) on two wing plates of guide rail (3) one end, one of backing plate (4) is welded on one of wing plate
Outside, so that the second H profile steel (5) is completely fixed in guide rail (3), wherein two pieces of backing plates (4) are welded on the inside of another wing plate
And it is symmetrical with web, and backing plate (4) is welded on the inner wall of guide rail (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910516168.0A CN110130945A (en) | 2019-06-14 | 2019-06-14 | A kind of contractible joint for scalable steel arch-shelf |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910516168.0A CN110130945A (en) | 2019-06-14 | 2019-06-14 | A kind of contractible joint for scalable steel arch-shelf |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110130945A true CN110130945A (en) | 2019-08-16 |
Family
ID=67577364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910516168.0A Pending CN110130945A (en) | 2019-06-14 | 2019-06-14 | A kind of contractible joint for scalable steel arch-shelf |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110130945A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617077A (en) * | 2019-09-20 | 2019-12-27 | 中铁十八局集团有限公司 | Construction method for preventing floor heave of tunnel bottom inverted arch |
| CN111535839A (en) * | 2020-05-11 | 2020-08-14 | 宁波朗达工程科技有限公司 | Telescopic tunnel steel arch frame |
| CN111610101A (en) * | 2020-04-28 | 2020-09-01 | 中铁工程服务有限公司 | Steel bow member compression experiment platform |
| CN111663951A (en) * | 2020-06-24 | 2020-09-15 | 中水北方勘测设计研究有限责任公司 | Connection method of annular steel arch frame sealing unit for TBM construction tunnel support |
| CN113882877A (en) * | 2021-10-27 | 2022-01-04 | 宁波市交通建设工程试验检测中心有限公司 | Telescopic tunnel steel arch frame joint |
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| KR20130018516A (en) * | 2011-08-09 | 2013-02-25 | 조용진 | Coupler type device for joint of h-shape steel |
| KR20140014473A (en) * | 2012-07-24 | 2014-02-06 | 주식회사 세안 | Yieldable steel arches supports in tunnel construction |
| KR101388416B1 (en) * | 2013-02-13 | 2014-04-22 | 주식회사 디알비동일 | Brace type damper |
| CN107780951A (en) * | 2017-11-01 | 2018-03-09 | 中交第公路勘察设计研究院有限公司 | High ground stress soft rock stress large deformation preliminary bracing system |
| CN108386211A (en) * | 2018-03-06 | 2018-08-10 | 兰州理工大学 | Anchor pole-steelframe, which combines to allow, presses preliminary bracing structure and construction method |
| CN108561161A (en) * | 2018-06-01 | 2018-09-21 | 齐鲁交通发展集团有限公司 | A kind of scalability steel arch-shelf |
| CN210217777U (en) * | 2019-06-14 | 2020-03-31 | 中铁工程服务有限公司 | Contractible joint for telescopic steel arch frame |
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2019
- 2019-06-14 CN CN201910516168.0A patent/CN110130945A/en active Pending
Patent Citations (7)
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| KR20130018516A (en) * | 2011-08-09 | 2013-02-25 | 조용진 | Coupler type device for joint of h-shape steel |
| KR20140014473A (en) * | 2012-07-24 | 2014-02-06 | 주식회사 세안 | Yieldable steel arches supports in tunnel construction |
| KR101388416B1 (en) * | 2013-02-13 | 2014-04-22 | 주식회사 디알비동일 | Brace type damper |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617077A (en) * | 2019-09-20 | 2019-12-27 | 中铁十八局集团有限公司 | Construction method for preventing floor heave of tunnel bottom inverted arch |
| CN111610101A (en) * | 2020-04-28 | 2020-09-01 | 中铁工程服务有限公司 | Steel bow member compression experiment platform |
| CN111610101B (en) * | 2020-04-28 | 2023-10-24 | 中铁工程服务有限公司 | Steel arch compression experiment table |
| CN111535839A (en) * | 2020-05-11 | 2020-08-14 | 宁波朗达工程科技有限公司 | Telescopic tunnel steel arch frame |
| CN111663951A (en) * | 2020-06-24 | 2020-09-15 | 中水北方勘测设计研究有限责任公司 | Connection method of annular steel arch frame sealing unit for TBM construction tunnel support |
| CN113882877A (en) * | 2021-10-27 | 2022-01-04 | 宁波市交通建设工程试验检测中心有限公司 | Telescopic tunnel steel arch frame joint |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Jianbin Inventor after: Zhou Yuanyi Inventor after: Jiao Junqi Inventor after: Li Heng Inventor after: Gao Xudong Inventor after: Mei Yuanyuan Inventor after: Zhou Hongchu Inventor after: Wang Yuchen Inventor after: Zheng Jun Inventor after: Zhang Haowen Inventor after: Bai Jiangtao Inventor before: Li Heng Inventor before: Jiao Junqi Inventor before: Gao Xudong Inventor before: Mei Yuanyuan Inventor before: Zhou Hongchu Inventor before: Wang Yuchen Inventor before: Zheng Jun Inventor before: Zhang Haowen Inventor before: Bai Jiangtao Inventor before: Zhou Yuanyi |