CN205225297U - Surrender formula rock stock - Google Patents
Surrender formula rock stock Download PDFInfo
- Publication number
- CN205225297U CN205225297U CN201521055215.XU CN201521055215U CN205225297U CN 205225297 U CN205225297 U CN 205225297U CN 201521055215 U CN201521055215 U CN 201521055215U CN 205225297 U CN205225297 U CN 205225297U
- Authority
- CN
- China
- Prior art keywords
- rod
- sleeve pipe
- surrender
- rock
- stock
- 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
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model provides a surrender formula rock stock, includes the body of rod, is provided with the sleeve pipe outside the body of rod, and the sleeve pipe suit is on the body of rod, and the cover outside of tubes still is provided with the anchor cover, the one end of the body of rod is provided with fixation nut, is provided with the backing plate between the fixation nut and the body of rod, is provided with the fixed head in the body of rod other end. The utility model provides a surrender formula rock stock carries out the configuration mode that fixes through adopting the anchor cover to the stock body of rod, can pour into the mortar into between sleeve pipe and drilling, and under the big deformation condition of later stage rock mass, the body of rod takes place the surrender, anchor cover roll -off and edge from the trapezoidal interface the body of rod slides, and the body of rod still keeps certain anti power simultaneously, utilizes this stock can reduce the stress of rock, guarantees the stability of rock mass.
Description
Technical field
The utility model belongs to underground engineering construction field, is specifically related to a kind of surrender formula rock bolt.
Background technology
Anchor pole is one of important measures of surrounding rock supporting in underground engineering construction process.In heavily stressed surrounding rock supporting process, because surrouding rock deformation is comparatively large, common bolt, due to the restriction of elongation per unit length, under the condition that surrouding rock deformation is larger, is easily pulled off, thus loses support capacity.
Summary of the invention
For solving problems of the prior art, the utility model provides a kind of anchoring cartridge that adopts to be fixed anchor rod body, under rock mass large deformation condition, the while that the body of rod can carrying out sliding in anchoring cartridge, the body of rod still can keep the surrender formula rock bolt of certain drag.
The purpose of this utility model is achieved in that a kind of surrender formula rock bolt, comprise the body of rod, sleeve pipe is outside equipped with at the body of rod, casing pipe sleeve is contained on the body of rod, sleeve pipe is also provided with anchoring cartridge outward, one end of the described body of rod is provided with hold-down nut, between hold-down nut and the body of rod, be provided with backing plate, is provided with gland in the body of rod other end.
Gland external diameter is greater than body of rod external diameter.
Anchoring cartridge embeds the body of rod by terraced interface.
The distance of anchoring cartridge and gland and the degree of depth of described terraced interface are determined according to the yield deformation amount of country rock actual needs and yield force.
Anchoring cartridge arranged outside becomes screw thread form.
The surrender formula rock bolt that the utility model provides, by the frame mode adopting anchoring cartridge to be fixed anchor rod body, mortar can be injected between sleeve pipe and boring, under later stage rock mass large deformation condition, the body of rod is surrendered, and anchoring cartridge skids off and slides along the described body of rod from terraced interface, and the body of rod still keeps certain drag simultaneously, utilize this anchor pole can reduce the stress of rock, ensure the stability of rock mass.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
1-nut in figure; 2-backing plate; The 3-body of rod; 4-anchoring cartridge; 5-sleeve pipe; 6-gland.
Detailed description of the invention
The utility model mainly comprises the body of rod 3, anchoring cartridge 4, the body of rod 3, hold-down nut 1 and backing plate 2, sleeve pipe 5, gland 6, and sleeve pipe 5 adopts as the plastics such as PVC are made, and concrete structure is as follows:
Sleeve pipe 5 is outside equipped with at the body of rod 3, sleeve pipe 5 is sleeved on the body of rod 1, sleeve pipe 5 is outer is also provided with anchoring cartridge 4, and one end of the described body of rod 3 is provided with hold-down nut 1, is provided with backing plate 2 between hold-down nut and the body of rod 3, gland 6 is provided with in the body of rod 3 other end, gland 6 external diameter is greater than the body of rod 4 external diameter, and to make gland 6 be sleeved on the body of rod 4, anchoring cartridge 4 embeds the body of rod 3 by terraced interface, screw thread is had, so that anchoring in anchoring cartridge 4 arranged outside.
Anchoring cartridge 4 is determined according to the yield deformation amount of country rock actual needs and yield force with the distance of gland 6 and the degree of depth of described terraced interface.
Operating principle of the present utility model is as follows:
After having holed, after the body of rod 3, sleeve pipe 5 and anchoring cartridge 4 being assembled, put into boring.Between described sleeve pipe 5 and boring, inject mortar, described backing plate 2 and described nut 1 are finally installed.Under later stage rock mass large deformation condition, the body of rod 3 is surrendered, and anchoring cartridge 4 skids off and slides along the described body of rod 3 from terraced interface, and the body of rod 3 still keeps certain drag simultaneously; When last anchor pole gland 6 contacts with anchoring cartridge 4, anchoring cartridge 4 pairs of anchor rod bodies 4 carry out Complete Bind.
Claims (5)
1. a surrender formula rock bolt, comprise the body of rod (3), it is characterized in that: be outside equipped with sleeve pipe (5) at the body of rod (3), sleeve pipe (5) is sleeved on the body of rod (3), sleeve pipe (5) is also provided with anchoring cartridge (4) outward, one end of the described body of rod (3) is provided with hold-down nut (1), is provided with backing plate (2) between hold-down nut and the body of rod (3), is provided with gland (6) in the body of rod (3) other end.
2. surrender formula rock bolt according to claim 1, is characterized in that: gland (6) external diameter is greater than the body of rod (3) external diameter.
3. surrender formula rock bolt according to claim 1, is characterized in that: anchoring cartridge (4) embeds the body of rod (3) by terraced interface.
4. surrender formula rock bolt according to claim 3, is characterized in that: anchoring cartridge (4) is determined according to the yield deformation amount of country rock actual needs and yield force with the distance of gland (6) and the degree of depth of described terraced interface.
5. surrender formula rock bolt according to claim 4, is characterized in that: anchoring cartridge (4) arranged outside becomes screw thread form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521055215.XU CN205225297U (en) | 2015-12-17 | 2015-12-17 | Surrender formula rock stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521055215.XU CN205225297U (en) | 2015-12-17 | 2015-12-17 | Surrender formula rock stock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205225297U true CN205225297U (en) | 2016-05-11 |
Family
ID=55900371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521055215.XU Expired - Fee Related CN205225297U (en) | 2015-12-17 | 2015-12-17 | Surrender formula rock stock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205225297U (en) |
-
2015
- 2015-12-17 CN CN201521055215.XU patent/CN205225297U/en not_active Expired - Fee Related
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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: 20160511 Termination date: 20191217 |