CN208778027U - Hook type foot-locking anchor rod for tunnel steel arch frame - Google Patents
Hook type foot-locking anchor rod for tunnel steel arch frame Download PDFInfo
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- CN208778027U CN208778027U CN201821270028.7U CN201821270028U CN208778027U CN 208778027 U CN208778027 U CN 208778027U CN 201821270028 U CN201821270028 U CN 201821270028U CN 208778027 U CN208778027 U CN 208778027U
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- lock foot
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- anchoring stock
- hole
- foot anchoring
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 30
- 239000010959 steel Substances 0.000 title claims abstract description 30
- 210000002445 nipple Anatomy 0.000 claims abstract description 30
- 238000003466 welding Methods 0.000 claims abstract description 22
- 238000004873 anchoring Methods 0.000 claims description 76
- 238000010276 construction Methods 0.000 abstract description 13
- 238000012545 processing Methods 0.000 abstract description 11
- 239000011435 rock Substances 0.000 abstract description 11
- 238000009434 installation Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 238000005553 drilling Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 210000003205 muscle Anatomy 0.000 abstract description 2
- 239000012141 concentrate Substances 0.000 abstract 1
- 239000000428 dust Substances 0.000 abstract 1
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 238000009417 prefabrication Methods 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- 239000000779 smoke Substances 0.000 abstract 1
- 238000013461 design Methods 0.000 description 11
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012407 engineering method Methods 0.000 description 4
- 239000003517 fume Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 208000028571 Occupational disease Diseases 0.000 description 2
- 238000000275 quality assurance Methods 0.000 description 2
- 208000005903 Manganese Poisoning Diseases 0.000 description 1
- 206010027439 Metal poisoning Diseases 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 206010035653 pneumoconiosis Diseases 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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Abstract
The utility model discloses a tunnel steel bow member crotch type lock foot stock, its characterized in that: the hook type foot-locking anchor rod has two components, namely a short-section transverse rib and a foot-locking anchor rod head hook; before installation, the short-section transverse bar is welded with the bent arch frame by the surrounding rock side in the steel bar processing shed outside the hole in a double-sided mode, and the bent hook type anchor rod is assembled in the hole and connected with the short-section transverse bar. This time is according to the characteristics of conventional lock foot stock construction, the redesign has utilized crotch type lock foot stock, keep away from the I-steel with lock foot stock lock foot action point and surround the rock side transfer to leaning on to the surrounding rock side, the lock foot ability has been improved greatly, become the outer steel reinforcement processing canopy of hole with the in-situ welding stock in the hole and concentrate processing prefabrication, welding operation in having avoided the hole produces welding smoke and dust, regard as lock foot stock hole drilling guide point with the horizontal muscle of nipple joint simultaneously, can accurate construction lock foot stock, the stock raw and other materials have also been practiced thrift, the process time is saved, the purpose for the project increase benefit has been reached.
Description
Technical field
The utility model relates to a kind of lock foot anchoring stocks, are especially a kind of tunnel steel arch frame hook type lock foot anchoring stock.
Background technique
It mandatory is not wanted about lock foot anchoring stock construction in " highway tunnel construction technical specification " (JTGF60-2009)
It asks, therefore tunnel lock foot anchoring stock construction technology and the method for inspection are substantially at space state, often results in tunnel lock foot anchoring stock " lock
Foot " ability cannot be effectively ensured, and seriously affect the stability of preliminary bracing, carry out huge hidden danger to construction and structure safety belt,
So lock foot anchoring stock whether effectively " lock foot " play the role of safely to our constructing tunnels and structure it is highly important.At present in tunnel
In the construction of road lock foot anchoring stock, it is difficult to ensure that welding quality, traditional construction method is: lock foot anchoring stock is usually used outside hole and is bent into
L-type, with the construction technology of steel arch-shelf welding in hole, this kind of construction technology is simple, but welding quality of constructing is difficult to ensure, and is welded
To a large amount of weld fumes are caused in hole when operation, since ventilated environment is limited in hole, if operation protection is improper, welder can be generated
The occupational diseases such as pneumoconiosis, metal fever, manganese poisoning, site welding lock foot anchoring stock occupy activity time, when increasing tunnel single cycle
Between, while scene overhead welding lock foot anchoring stock quality is difficult to ensure, to produce project cost, duration and the pressure of prevention and cure of occupational disease
Power.
Utility model content
Therefore, in order to solve above-mentioned deficiency, the utility model provides a kind of tunnel steel arch frame hook type lock foot anchoring stock herein；
The characteristics of this is according to tunnel lock foot anchoring stock has redesigned lock foot anchoring stock shape type, can with the hook type lock foot anchoring stock
" lock foot " ability of anchor pole is effectively ensured, while having saved the welding lock foot anchoring stock time in hole, avoids and generates welding cigarette in hole
Dirt reduces part anchor pole material, has achieved the purpose that increase benefit for project.
The utility model is realized in this way constructing a kind of tunnel steel arch frame hook type lock foot anchoring stock, it is characterised in that: should
Hook type lock foot anchoring stock includes pipe nipple transverse bar, lock foot anchoring stock head crotch；Pipe nipple transverse bar or so is 5cm longer than I-steel width respectively,
It is suitable with anchor rod body radius that lock foot anchoring stock head crotch bends radius.
According to tunnel steel arch frame hook type lock foot anchoring stock described in the utility model, it is characterised in that: by pipe nipple transverse bar outside hole
It is welded on the arch processed behind, using welding by both sides, anchor pole head is bent into hook type, crotch size and lock foot anchoring stock size
It is suitable for assembling lock foot anchoring stock in hole, crotch being caught on into pipe nipple transverse bar.
According to tunnel steel arch frame hook type lock foot anchoring stock described in the utility model, it is characterised in that: this hook type locks foot anchor
Bar pipe nipple transverse bar cutting length are as follows: 5cm+D+5cm, two-sided welding lean on country rock side in arch, and the long 5cm of anchor pole head crotch, crotch is big
It is small suitable with bolt diameter.
The utility model discloses a kind of tunnel steel arch frame hook type lock foot anchoring stocks, it is characterised in that: the hook type locks foot
The component of anchor pole is divided into two kinds, respectively pipe nipple transverse bar, lock foot anchoring stock head crotch；Pipe nipple transverse bar is added in reinforcing bar outside hole before installation
It is connected with the arch bent by country rock side welding by both sides in builder's temporary shed, hook type anchor pole is assembled in hole and is connected with pipe nipple transverse bar.
Hook type lock foot anchoring stock has been used in the characteristics of this constructs according to conventional lock foot anchoring stock, redesign, will lock foot anchor
Lever lock foot position is transferred to far from country rock side by country rock side from I-steel, lock foot ability is substantially increased, by site welding in hole
Connecing anchor pole becomes outside hole that reinforcing steel processing shed concentrated processing is prefabricated, avoids weld job in hole and generates weld fumes, while with short
Transverse bar is saved as lock foot anchoring stock hole drilling guiding point, can accurately construct lock foot anchoring stock, also save anchor pole raw material, save process
Time has achieved the purpose that increase benefit for project.
The utility model has the advantages that the design by this project to tunnel hook type lock foot anchoring stock, and in reality
Practical application in work progress.Using the hook type lock foot anchoring stock, " lock foot " ability of lock foot anchoring stock ensure that, while saving
The lock foot anchoring stock time is welded in hole, is avoided generation weld fumes in hole, is reduced part anchor pole material, has reached and increased for project
Add the purpose of benefit.
This hook type lock foot anchoring stock presses cold assembling design, and design rationally, has good practicability.The processing is simple, installation
Simply, it is suitble to the worker of various cultural knowledge levels to use, there is good quality assurance and simple to install.
It is good to can be seen that hook type lock foot anchoring stock " lock foot " ability from actual using effect, has obtained owner, management
Etc. the highly recognition of multi-party unit, and engineering method one is write accordingly, win provincial engineering method title.
Detailed description of the invention
Fig. 1 is that pipe nipple transverse bar and I-steel weld schematic diagram；
Fig. 2 is that pipe nipple transverse bar and I-steel weld elevation；
Fig. 3 hook type anchor pole crotch design drawing；
Fig. 4 hook type lock foot anchoring stock scheme of installation.
Wherein: pipe nipple transverse bar 1, lock foot anchoring stock head crotch 2, I-steel 3, bolthole 4.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing 1- Fig. 4, to the skill in the utility model embodiment
Art scheme is clearly and completely described, it is clear that and the described embodiments are only a part of the embodiments of the utility model, and
The embodiment being not all of.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creativeness
Every other embodiment obtained, fall within the protection scope of the utility model under the premise of labour.
The utility model provides a kind of tunnel steel arch frame hook type lock foot anchoring stock by improving herein, which locks foot anchor
Bar includes pipe nipple transverse bar 1, lock foot anchoring stock head crotch 2；Pipe nipple transverse bar or so is 5cm longer than 3 width of I-steel respectively, lock foot anchoring stock head
It is suitable with anchor rod body radius that crotch 2 bends radius.
Pipe nipple transverse bar 1 is welded on the arch processed outside hole behind, adopted by the tunnel steel arch frame hook type lock foot anchoring stock
With welding by both sides, anchor pole head is bent into hook type, crotch size and lock foot anchoring stock size are suitable for that lock foot anchoring stock is assembled in hole, will
Crotch catches on pipe nipple transverse bar.
The tunnel steel arch frame hook type lock foot anchoring stock, this hook type lock foot anchoring stock pipe nipple transverse bar cutting length are as follows: 5cm+D
+ 5cm, two-sided welding lean on country rock side in arch, and the long 5cm of anchor pole head crotch, crotch size is suitable with bolt diameter.
Hook type lock foot anchoring stock design parameter, feature and using effect are as follows:
1, according to lock foot anchoring stock the characteristics of, by repeatedly practicing, designed and produced hook type lock foot anchoring stock, and be used for
In actual construction application, working procedure is enormously simplified, and ensure construction quality.In hook type lock foot anchoring stock in use, energy
The welding of pipe nipple transverse bar is transferred to reinforcing steel processing shed concentration pre-casting outside hole, pipe nipple transverse bar cutting length are as follows: 5cm+D(I-steel
Width)+5cm, two-sided welding is in arch by country rock side, and the long 5cm of anchor pole head crotch, crotch size is suitable with bolt diameter, convenient
In-site installation greatly improves anchor pole lock foot ability due to reducing anchor pole cantilever end length.In practice, pipe nipple is horizontal
Anchor point of the muscle as lock foot anchoring stock hole drilling, can accurately set lock foot anchoring stock.
2, worker installs and uses hook type lock foot anchoring stock for convenience, and reinforcing steel processing shed is two-sided by pipe nipple transverse bar outside hole
It is welded on manufactured I-steel and designs lock foot anchoring stock position by country rock side, lock foot anchoring stock body of rod end is curved by bending machine
Hook type is made, and tries assembly, is transported in hole, anchor point of the pipe nipple transverse bar as lock foot anchoring stock hole drilling accurately sets lock foot
After bolthole, Anchor Agent is soaked as required and is filled in bolthole, lock foot anchoring stock is squeezed into, so that termination point of anchor rod crotch is just caught on
Pipe nipple transverse bar stretches out at I-steel, completes the processing and installation of hook type lock foot anchoring stock.Mainly solve following problems: first is that outside hole
The unified allocation of materials to lower units and lock foot anchoring stock crotch is bent, can guarantee anchor pole dimensioned batch production well, it is difficult that anchor pole size can be solved
With control problem；Second is that in reinforcing steel processing shed two-sided welding pipe nipple transverse bar, level welding solves lock foot anchoring stock with fashioned iron and connect matter
Measure integrity problem；Third is that can accurately construct lock foot anchoring stock using pipe nipple transverse bar as lock foot anchoring stock hole drilling anchor point in hole；Four
It is that pipe nipple transverse bar stretches out shaped steel arch 5cm, can guarantee that crotch catches on transverse bar, connection is reliable；Fifth is that crotch locks foot from loading angle
Rockbolt stress point leans on country rock side in shaped steel arch, reduces the cantilever end length of lock foot anchoring stock, and lock foot ability is stronger.(see design drawing
4).
Case history application:
Climbing big high speed item manager branch TJ8 branch No. 2 tunnel start-stop pile No. of tripod is K23+322~K18+940, overall length
4.382Km designs speed per hour 80km/h, two-way 4 lane separate tunnel, for Panzhihua to Dali highway (Sichuan border) engineering
The main projects of project.
Design by this project to tunnel hook type lock foot anchoring stock, and practical application in the actual construction process.Using
The hook type lock foot anchoring stock, ensure that " lock foot " ability of lock foot anchoring stock, while save the welding lock foot anchoring stock time in hole, keep away
Exempt to generate weld fumes in hole, reduced part anchor pole material, has achieved the purpose that increase benefit for project.
This hook type lock foot anchoring stock presses cold assembling design, and design rationally, has good practicability.The processing is simple, installation
Simply, it is suitble to the worker of various cultural knowledge levels to use, there is good quality assurance and simple to install.
It is good to can be seen that hook type lock foot anchoring stock " lock foot " ability from actual using effect, has obtained owner, management
Etc. the highly recognition of multi-party unit, and engineering method one is write accordingly, win provincial engineering method title.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (2)
1. a kind of tunnel steel arch frame hook type lock foot anchoring stock, it is characterised in that: the hook type lock foot anchoring stock includes pipe nipple transverse bar
(1), lock foot anchoring stock head crotch (2)；Pipe nipple transverse bar or so is 5cm longer than I-steel (3) width respectively, lock foot anchoring stock head crotch (2)
It is suitable with anchor rod body radius to bend radius.
2. tunnel steel arch frame hook type lock foot anchoring stock according to claim 1, it is characterised in that: by pipe nipple transverse bar (1) outside hole
It is welded on the arch processed behind, using welding by both sides, anchor pole head is bent into hook type, crotch size and lock foot anchoring stock size
It is suitable for assembling lock foot anchoring stock in hole, crotch being caught on into pipe nipple transverse bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821270028.7U CN208778027U (en) | 2018-08-08 | 2018-08-08 | Hook type foot-locking anchor rod for tunnel steel arch frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821270028.7U CN208778027U (en) | 2018-08-08 | 2018-08-08 | Hook type foot-locking anchor rod for tunnel steel arch frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208778027U true CN208778027U (en) | 2019-04-23 |
Family
ID=66156113
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821270028.7U Active CN208778027U (en) | 2018-08-08 | 2018-08-08 | Hook type foot-locking anchor rod for tunnel steel arch frame |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110778342A (en) * | 2019-11-26 | 2020-02-11 | 中铁第四勘察设计院集团有限公司 | Corrugated steel plate lining arch springing structure of railway tunnel and optimization design method thereof |
-
2018
- 2018-08-08 CN CN201821270028.7U patent/CN208778027U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110778342A (en) * | 2019-11-26 | 2020-02-11 | 中铁第四勘察设计院集团有限公司 | Corrugated steel plate lining arch springing structure of railway tunnel and optimization design method thereof |
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