CN206539358U - A kind of pipe seam formula grouted anchor bar - Google Patents
A kind of pipe seam formula grouted anchor bar Download PDFInfo
- Publication number
- CN206539358U CN206539358U CN201621209661.6U CN201621209661U CN206539358U CN 206539358 U CN206539358 U CN 206539358U CN 201621209661 U CN201621209661 U CN 201621209661U CN 206539358 U CN206539358 U CN 206539358U
- Authority
- CN
- China
- Prior art keywords
- rod
- steel pipe
- anchor bar
- grouted anchor
- cracks
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model patent is a kind of pipe seam formula grouted anchor bar, is made up of the steel pipe that cracks, the internal body of rod, planker, back-up ring.The steel pipe that cracks is rolled by steel pipe or sheet metal to be formed, and is longitudinally cracked along total length.Rod end does tapered, in order to install.After anchor pole is pressed into drilling, the steel pipe that cracks is compressed, firm pipe outer wall and borehole wall jam-packed, produces the radial compressive stress and axial friction along steel pipe total length, compression is produced in country rock, prevent surrouding rock deformation.After slip casting, slurries are full of the space produced between the body of rod and country rock, further enhance the active force between anchor pole and country rock.The device can be used as initial support anchor pole and use at supporting initial stage.When roadway surrounding rock reaches certain numerical value, i.e., when tunnel-surrounding forms a range of loosening rupture zone, then slip casting is implemented to country rock, country rock can be made to obtain release, slip casting is become easy again, optimal supporting effect is reached.Anchor pole is installed simultaneously and is divided into two process progress with slip casting, does not interfere with each other, does not influence driving speed.
Description
Technical field
The utility model is related to a kind of install can separate the pipe seam formula grouted anchor bar carried out with slip casting, and the device can have
Effect improves the speed of application of roadway support, roadway surrounding rock is obtained release, when tunnel-surrounding formation loosens rupture zone, passes through note
Slurry further provides compression to borehole wall, prevents surrouding rock deformation.
Background technology
Colliery enters after deep mining, is influenceed by deep formation complicated stress field, will face complete with shallow mining
Different engineering rock mass mechanics problems.Engineering rock mass is from the linear mechanical behaviors of rocks of superficial part to the non-linear rock mechanics row in deep
For transformation, substantial amounts of supporting complicated roadway is occurred in that.Including deep, high-ground stress tunnel, soft rock, very soft rock roadway, by strong
Dynamic pressure influences tunnel, country rock soft broken, tunnel smashed to pieces etc..The supporting that common anchor pole can not meet deep buried depth tunnel will
Ask, it is necessary to by the utilization rate of certain means raising anchor pole, give full play to the performance of anchor pole, current prestressed anchor is extensive
Use, but because the construction of prestressed anchor belongs to concealed work, it is difficult to check its construction quality, therefore strong influence depth
The supporting in portion tunnel, so as to govern economic benefit and the safety in production of coal enterprise significantly.
The content of the invention
The utility model is related to a kind of pipe seam formula grouted anchor bar installed and separately carried out with slip casting, and the device can be carried effectively
The speed of application of high roadway support, makes roadway surrounding rock obtain release, when tunnel-surrounding formation certain limit loosens rupture zone, leads to
Cross slip casting and further provide compression to borehole wall, prevent surrouding rock deformation.
1. a kind of pipe seam formula grouted anchor bar, is made up of the steel pipe that cracks, the internal body of rod, planker, back-up ring, it is characterized in that：In bar
The outside of body is provided with longitudinal total length and cracked steel pipe, and end is done tapered.The internal body of rod is the internal-injection type grouted anchor bar body of rod, in supporting plate
It is interior to be provided with stop grouting plug, back-up ring is provided with deck end, to compress supporting plate.The back-up ring of bar tail is connected jail with the body of rod by screw thread
Gu, the structure stress is reasonable.
As an improvement, the steel pipe that cracks is provided in the hollow-core construction of body of rod outer deformable, a diameter of 30 ~ 45mm, than boring
Big 2 ~ the 3mm of bore dia, break a seal 10 ~ 15mm of width, is longitudinally cracked along total length, end does tapered, to install.
As an improvement, the internal body of rod uses the body of rod of Ф 22mm internal-injection type grouted anchor bars.
As an improvement, plate is by the steel plate that lower surface is thickness 2mm, it is circular just lid thereon, inside sets stop grouting plug.
As an improvement, back-up ring and the body of rod are connected by internal whorl, can fix supporting plate and after the completion of rockbolt installation to
Back-up ring applies pressure.
The beneficial effects of the invention are as follows：The design structure is simple, easy for installation, improves the speed of application in tunnel；Work as anchor pole
It is pressed into after drilling, the steel pipe that cracks is compressed, firm pipe outer wall and borehole wall jam-packed produce the radial compressive stress along steel pipe total length
And axial friction, compression is produced in country rock, surrouding rock deformation is prevented.After slip casting, slurries are full of between the body of rod and country rock
The space of generation, further enhances the active force between anchor pole and country rock.The device can be used as initial support at supporting initial stage
Anchor pole is used.When roadway surrounding rock reaches certain numerical value, i.e., when tunnel-surrounding forms a range of loosening rupture zone, then it is right
Country rock implements slip casting, and country rock can be made to obtain release, slip casting is become easy again, optimal supporting effect is reached.Anchor is installed simultaneously
Bar is divided into two process progress with slip casting, does not interfere with each other, does not influence driving speed.
Brief description of the drawings
A kind of pipe seam formula grouted anchor bar design drawings of Fig. 1.
Fig. 2 Supporting plate for anchor plans.
Fig. 3 anchor poles end enlarged drawing.
Reference：（1）Outside anchor pole；（2）The internal body of rod；（3）Supporting plate；（4）Back-up ring；（5）Outside anchor pole cracks；（6）
End.
Embodiment
Embodiment of the present utility model is described in further detail with reference to the accompanying drawings and examples.Following reality
Example is used for illustrating the utility model, but is not limited to scope of the present utility model.
As shown in figure 1, the pipe seam formula grouted anchor bar that the utility model embodiment is provided, including outside anchor pole 1, the internal body of rod
2, supporting plate 3, back-up ring 4, outside anchor pole cracks 5, end 6.
In use, after anchor pole is pressed into drilling, the steel pipe that cracks is compressed, firm pipe outer wall and borehole wall jam-packed are produced
Along the radial compressive stress and axial friction of steel pipe total length, compression is produced in country rock, surrouding rock deformation is prevented.After slip casting,
Slurries are full of the space produced between the body of rod and country rock, further enhance the active force between anchor pole and country rock.The device exists
Supporting initial stage, it can be used as common bolt and use.When roadway surrounding rock reaches certain numerical value, i.e., in tunnel-surrounding formation certain limit
Loosening rupture zone when, then slip casting is implemented to country rock, country rock can be made to obtain release, slip casting is become easy again, reached optimal
Supporting effect.Anchor pole is installed simultaneously and is divided into two process progress with slip casting, does not interfere with each other, does not influence driving speed.
As an improvement, the steel pipe that cracks is provided in the hollow-core construction of body of rod outer deformable, a diameter of 30 ~ 45mm, than boring
Big 2 ~ the 3mm of bore dia, break a seal 10 ~ 15mm of width, is longitudinally cracked along total length, end does tapered, to install.
As an improvement, the internal body of rod uses the body of rod of Ф 22mm internal-injection type grouted anchor bars.
As an improvement, plate is by the steel plate that lower surface is thickness 2mm, it is circular just lid thereon, inside sets stop grouting plug.
As an improvement, back-up ring and the body of rod are connected by internal whorl, can fix supporting plate and after the completion of rockbolt installation to
Back-up ring applies pressure.
Claims (5)
1. a kind of pipe seam formula grouted anchor bar, by the steel pipe that cracks（1）, the internal body of rod（2）, supporting plate（3）, back-up ring（4）Composition, its feature
It is：The head of the body of rod does tapered, the outside steel pipe that cracks（1）Rolled and formed by steel pipe or sheet metal, longitudinally cracked along total length,
The internal body of rod is the internal-injection type grouted anchor bar body of rod；In supporting plate（3）It is interior to be provided with stop grouting plug, in supporting plate（3）End is provided with back-up ring（4）,
To compress supporting plate.
2. a kind of pipe seam formula grouted anchor bar according to claim 1, it is characterized in that：Crack steel pipe（1）It is provided in the body of rod
The hollow-core construction of outer deformable, a diameter of 30 ~ 45mm, 2 ~ 3mm bigger than bore diameter, cracks（5）10 ~ 15mm of width, along complete
Long longitudinal direction is cracked, end（6）Do tapered, to install.
3. a kind of pipe seam formula grouted anchor bar according to claim 1, it is characterized in that：The internal body of rod（2）Using in Ф 22mm
The body of rod of note formula grouted anchor bar.
4. a kind of pipe seam formula grouted anchor bar according to claim 1, it is characterized in that：Supporting plate（3）It is thickness 2mm by lower surface
Steel plate, be circular just lid thereon, inside set stop grouting plug.
5. a kind of pipe seam formula grouted anchor bar according to claim 1, it is characterized in that：Back-up ring（4）Pass through internal spiral shell with the body of rod
Line is connected, and can fix supporting plate（3）And apply pressure to back-up ring after the completion of rockbolt installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621209661.6U CN206539358U (en) | 2016-11-10 | 2016-11-10 | A kind of pipe seam formula grouted anchor bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621209661.6U CN206539358U (en) | 2016-11-10 | 2016-11-10 | A kind of pipe seam formula grouted anchor bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206539358U true CN206539358U (en) | 2017-10-03 |
Family
ID=59937004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621209661.6U Expired - Fee Related CN206539358U (en) | 2016-11-10 | 2016-11-10 | A kind of pipe seam formula grouted anchor bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206539358U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469055A (en) * | 2018-12-20 | 2019-03-15 | 长安大学 | A kind of part pipe seam formula end expansion type energy-absorption anchor rod and its construction method |
| CN109519202A (en) * | 2018-12-10 | 2019-03-26 | 陕西蒲白矿山支护有限公司 | A kind of spin anchor note pipe |
| CN109797751A (en) * | 2018-12-10 | 2019-05-24 | 中国电建集团华东勘测设计研究院有限公司 | A kind of anchor structure being suitable for large deformation and construction method |
| CN113638757A (en) * | 2021-08-13 | 2021-11-12 | 安徽金日晟矿业有限责任公司 | Pipe seam type anchor rod support and application method thereof |
-
2016
- 2016-11-10 CN CN201621209661.6U patent/CN206539358U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519202A (en) * | 2018-12-10 | 2019-03-26 | 陕西蒲白矿山支护有限公司 | A kind of spin anchor note pipe |
| CN109797751A (en) * | 2018-12-10 | 2019-05-24 | 中国电建集团华东勘测设计研究院有限公司 | A kind of anchor structure being suitable for large deformation and construction method |
| CN109469055A (en) * | 2018-12-20 | 2019-03-15 | 长安大学 | A kind of part pipe seam formula end expansion type energy-absorption anchor rod and its construction method |
| CN109469055B (en) * | 2018-12-20 | 2023-09-19 | 长安大学 | Local pipe seam type end expansion energy-absorbing anchor rod and construction method thereof |
| CN113638757A (en) * | 2021-08-13 | 2021-11-12 | 安徽金日晟矿业有限责任公司 | Pipe seam type anchor rod support and application method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206539358U (en) | A kind of pipe seam formula grouted anchor bar | |
| CN207004554U (en) | A kind of multistage allows pressure grouting anchor pole | |
| CN206419054U (en) | A kind of self-drilling type two-stage, which allows, presses recyclable grouted anchor bar | |
| CN206592139U (en) | A kind of external poured is segmented anchoring rod | |
| CN103277122B (en) | Method for drilling anchor rod hole and anchoring anchor rod in broken roof | |
| CN103758552A (en) | Hole-expanding anchor rod and construction process thereof | |
| CN103899329A (en) | Large-deformation broken surrounding rock roadway management method | |
| CN101949294A (en) | Prestressed full-length anchorage support method | |
| CN102808635B (en) | A kind of swollen shell-type Inner bolt head prestressed anchor and installation and application thereof | |
| CN206448830U (en) | A kind of self-advancing type Hollow non-metallic screw thread reinforced resin anchor pole | |
| CN205117379U (en) | Let pressure stock from advancing formula large deformation | |
| CN204572026U (en) | A kind of Multifunctional anchor rod device | |
| CN206539359U (en) | A kind of umbrella-type grouted anchor bar | |
| CN202936792U (en) | Expansion shell type internal anchor head pre-stressed anchor | |
| CN103967509B (en) | The anchor tube rope supporting and protection structure of cross shear can be born | |
| CN205778957U (en) | A kind of delayed section of support system of workings subject to dy namic pressure | |
| CN204877514U (en) | Modular cavity slip casting stock | |
| CN104632106A (en) | Guide device for coal bed gas phase fracturing device | |
| CN204283464U (en) | One allows pressure anchor cable | |
| CN204327134U (en) | A kind of prestressing force balance anchor cable | |
| CN204877515U (en) | Hollow grouting anchor rod | |
| CN204827497U (en) | Visual prestressing force resistance to plucking resin stock | |
| CN205000980U (en) | Stock is drawn in large deformation | |
| CN201132957Y (en) | Roof bolt | |
| CN204827500U (en) | Pinniform wedge body stock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171003 Termination date: 20181110 |