CN204827497U - Visual prestressing force resistance to plucking resin stock - Google Patents
Visual prestressing force resistance to plucking resin stock Download PDFInfo
- Publication number
- CN204827497U CN204827497U CN201520482568.1U CN201520482568U CN204827497U CN 204827497 U CN204827497 U CN 204827497U CN 201520482568 U CN201520482568 U CN 201520482568U CN 204827497 U CN204827497 U CN 204827497U
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- China
- Prior art keywords
- prestress
- visual
- pallet
- resistance
- plucking
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- Expired - Fee Related
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Abstract
The utility model discloses a visual prestressing force resistance to plucking resin stock comprises resistance to plucking head, the body of rod, prestressing force detection tray, prestressing force sense terminal, the packing ring that excels in, the nut that excels in. Through exerting certain power to the pole tail, resistance to plucking head expansible, the pole of resin cartridge anchor afterwards head, then to stock prestress application, can obtain stock prestress application through measuring sense terminal displacement deflection. The device can be effectual improvement roadway support's construction quality, reduce and fail to reach the problem that the designing requirement caused the country rock unstability because of prestress application is not enough.
Description
Technical field
The utility model relates to the inner prestressed novel anchor rod of a kind of apparent deflection reflection, this device effectively can improve the construction quality of roadway support, reduce the problem failing to reach designing requirement because Shi Hanzhang is not enough, thus greatly improve surrounding rock stability.
Background technology
After colliery enters deep mining, by the impact of deep formation complicated stress field, the diverse engineering rock mass mechanics problem with shallow mining will be faced.By linear mechanical behaviors of rocks non-linear mechanical behaviors of rocks transformation to deep of superficial part, there is a large amount of supporting complicated roadway in engineering rock mass.Comprise deep, high-ground stress tunnel, soft rock, very soft rock roadway, affect tunnel by strong dynamic pressure, country rock soft broken, tunnel smashed to pieces etc.Common anchor pole can not meet the supporting requirement in buried depth tunnel, deep, need the utilization rate being improved anchor pole by certain means, give full play to the performance of anchor pole, current prestressed anchor is widely used, but because the construction of prestressed anchor belongs to concealed work, be difficult to check its construction quality, therefore have impact on the supporting of deep tunnel greatly, thus greatly govern economic benefit and the safety in production of coal enterprise.
Summary of the invention
The utility model relates to the inner prestressed anchor pole of a kind of apparent deflection reflection, and this device effectively can improve the construction quality of roadway support, reduces because Shi Hanzhang is not enough and fails to reach the problem that designing requirement causes wall rock destabilization.
A kind of visual prestress pulling resistant resin anchor, by resistance to plucking head, the body of rod, deformable pallet, prestress detection end, high-strength packing ring, high-strength nut forms, it is characterized in that: be provided with the hollow resistance to plucking head of deformable at the head of the body of rod, resin explosive roll is equipped with in inside, and external surface has groove.In deformable pallet, be provided with miniature u-shaped steel plate, be provided with the prestress detection end can measuring displacement deformation amount at prestress detection pallet end, the high-strength nut of bar tail is connected firmly by high-strength steel washer and deformable pallet, and this structure stress is reasonable.
As improvement, resistance to plucking head is arranged on the deformable hollow-core construction of body of rod head, and the resin explosive roll for anchoring is equipped with in its inside, and external surface is provided with groove.
As improvement, the body of rod adopts the body of rod of Ф 22mm high-strength screw-thread steel.
As improvement, deformable pallet upper and lower surface is the steel plate of thickness 2mm, and centre accompanies the miniature u-shaped steel plate that can deform, and when making prestressing force reach design strength by the elastic parameter arranging miniature u-shaped steel plate, deflection is a certain amount of.
As improvement, prestress detection end be movable up and down of prestress detection pallet between crack, the width of crack reflects the prestressed size that we apply.
The invention has the beneficial effects as follows: this project organization is simple, easy for installation, improve the efficiency of construction of roadway support; After anchor pole enters boring, can apply the power of some strength to bar tail, expand after making resistance to plucking head and country rock crimp and discharge inner resin explosive roll, the expansion of resistance to plucking head prevents anchor pole slippage; By rotating high-strength nut to anchor pole Shi Hanzhang, prestressing force size can be estimated by the deflection measuring prestress detection pallet after resin explosive roll anchoring completes.
Accompanying drawing explanation
A kind of visual prestress pulling resistant resin anchor plan of Fig. 1
Fig. 2 miniature u-shaped steel plain figure
A kind of visual prestress pulling resistant resin anchor design sketch of Fig. 3
Reference numeral: (1) resistance to plucking head; (2) body of rod; (3) prestress detection pallet; (4) prestress detection end; (5) high-strength packing ring; (6) high-strength nut.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail.Following instance is used for the utility model is described, but is not used for limiting scope of the present utility model.
As shown in Figure 1, the visual prestress pulling resistant resin anchor that the utility model embodiment provides, comprises resistance to plucking head 1, the body of rod 2, deformable pallet 3, prestress detection end 4, high-strength packing ring 5, high-strength nut 6.
During use, after anchor pole enters boring, can apply the pressure of some strength to bar tail, expand after making resistance to plucking head and country rock crimp and extrude inner resin explosive roll, the expansion of resistance to plucking head can prevent anchor pole slippage, simultaneously the effective effect increasing anchoring; Can by rotating high-strength nut to anchor pole Shi Hanzhang after resin explosive roll plays a role, by measuring the deflection estimation prestressing force size of prestress detection pallet, the displacement deformation amount when the test side on deformable pallet reaches the prestressing force that namely design variations amount reaches designing requirement applying.
As improvement, resistance to plucking head is arranged on the deformable hollow-core construction of body of rod head, and the resin explosive roll for anchoring is equipped with in its inside, and surface is provided with groove.
As improvement, the body of rod adopts the body of rod of Ф 22mm high-strength screw-thread steel.
As improvement, prestress detection pallet upper and lower surface is the steel plate of thickness 2mm, and centre accompanies the miniature u-shaped steel plate that can deform, and when making prestressing force reach design strength by the elastic parameter arranging miniature u-shaped steel plate, deflection is a certain amount of.
As improvement, prestress detection end be movable up and down of deformable pallet between spacing, the spacing of crack reflects the prestressed size applied.
Claims (5)
1. a visual prestress pulling resistant resin anchor, by resistance to plucking head (1), the body of rod (2), prestress detection pallet (3), prestress detection end (4), high-strength packing ring (5), high-strength nut (6) forms, it is characterized in that: be provided with the hollow resistance to plucking head (1) of deformable at the head of the body of rod, resin explosive roll is equipped with in inside, and external surface has groove; Flexible miniature u-shaped steel plate is provided with in deformable pallet (3), be provided with the prestress detection end (4) can measuring displacement deformation amount in deformable pallet (3) end, the high-strength nut (6) of bar tail is connected firmly and reasonable stress by high-strength packing ring (5) and prestress detection pallet (3).
2. according to visual prestress pulling resistant resin anchor a kind of described in claim 1, it is characterized in that: resistance to plucking head (1) is arranged on the deformable hollow-core construction of body of rod head, and the resin explosive roll for anchoring is equipped with in its inside, and surface is provided with groove.
3. according to visual prestress pulling resistant resin anchor a kind of described in claim 1, it is characterized in that: the body of rod (2) adopts Ф 22mm high-strength screw-thread steel.
4. according to visual prestress pulling resistant resin anchor a kind of described in claim 1, it is characterized in that: the steel plate that deformable pallet (3) is thickness 2mm by upper and lower surface forms, centre accompanies the miniature u-shaped steel plate that can deform.
5., according to visual prestress pulling resistant resin anchor a kind of described in claim 1, it is characterized in that: prestress detection end (4) be movable up and down of prestress detection pallet (3) between crack, the spacing of crack reacts the prestressed size applied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520482568.1U CN204827497U (en) | 2015-07-07 | 2015-07-07 | Visual prestressing force resistance to plucking resin stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520482568.1U CN204827497U (en) | 2015-07-07 | 2015-07-07 | Visual prestressing force resistance to plucking resin stock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204827497U true CN204827497U (en) | 2015-12-02 |
Family
ID=54685108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520482568.1U Expired - Fee Related CN204827497U (en) | 2015-07-07 | 2015-07-07 | Visual prestressing force resistance to plucking resin stock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204827497U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852526A (en) * | 2020-06-04 | 2020-10-30 | 河北建筑工程学院 | Length-adjustable real-time monitoring anchor rod device |
| CN113279798A (en) * | 2021-05-28 | 2021-08-20 | 中煤科工集团沈阳研究院有限公司 | Automatic measuring device for expansion deformation of protective layer for guniting hole sealing and using method |
-
2015
- 2015-07-07 CN CN201520482568.1U patent/CN204827497U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852526A (en) * | 2020-06-04 | 2020-10-30 | 河北建筑工程学院 | Length-adjustable real-time monitoring anchor rod device |
| CN113279798A (en) * | 2021-05-28 | 2021-08-20 | 中煤科工集团沈阳研究院有限公司 | Automatic measuring device for expansion deformation of protective layer for guniting hole sealing and using method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20160707 |