CN204492856U - A kind of inverted wedge type anchor rod - Google Patents
A kind of inverted wedge type anchor rod Download PDFInfo
- Publication number
- CN204492856U CN204492856U CN201520064901.7U CN201520064901U CN204492856U CN 204492856 U CN204492856 U CN 204492856U CN 201520064901 U CN201520064901 U CN 201520064901U CN 204492856 U CN204492856 U CN 204492856U
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- CN
- China
- Prior art keywords
- rod
- screw thread
- thread body
- wedge type
- chock
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of inverted wedge type anchor rod, comprise outside and establish the threaded screw thread body of rod, one end of the described screw thread body of rod is as anchoring section, and the other end as anchor head, and is furnished with pallet and nut, the outside equidistant placement chock of the described screw thread body of rod.Described chock and the screw thread body of rod are by being threaded togather between the two.The material of the described screw thread body of rod is low-alloy high-tensile structural steel.The working method that anchor pole of the present utility model adopts end anchorage and full length fastening to combine.The utility model relates to the built-up arch associating principle in Bolt Supporting Theory, after rockbolt installation completes, make the kata-rocks soil body firmly be suspended on stable Rock And Soil, increase the bulk strength of rock, improve anchor pole anti-pulling capacity, also make rockbolt stress more reasonable simultaneously.Support action can be played immediately after installation, for temporary lining, therefrom can take out shank portion after work completes, save material.
Description
Technical field
The utility model belongs to geotechnical engineering anchoring support technical field, is specifically related to a kind of inverted wedge type anchor rod.
Background technology
Anchor pole is the most element of current roadway support, by means of the superiority of its combination property, is used in the fields such as underground passage engineering widely.In roadway construction process, anchor pole plays an important role in raising fragmented rock body stability.At present, standard machinery type anchor pole cannot realize full length fastening, and binding type anchor pole because of cement solidification overlong time, anchoring support effect cannot be provided in time.Traditional inverted wedge type anchor rod belongs to mechanical anchor bolt, and it carries out anchoring mainly through the mechanical resistance between anchor head material and country rock.This type of conventional anchor construction technology is simple, install after play support action immediately, but roadway deformation amount is comparatively large, anchored force is less, poor durability, greatly reduces the safety of roadway construction.
Utility model content
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, there is provided and can take into account end anchorage and full length fastening, novel anchor rod that uplift resistance is high, this anchor pole overcomes the drawback such as end anchorage low bearing capacity, body of rod discontinuity, improves anchoring efficiency.
For achieving the above object, the utility model adopts following technical proposals:
A kind of inverted wedge type anchor rod, comprise outside and establish the threaded screw thread body of rod, one end of the described screw thread body of rod is as anchoring section, the other end is as anchor head, and be furnished with pallet and nut, the effect of pallet is that nut pre-anchoring force is passed to country rock, again the pressure from surrounding rock in tunnel is passed to anchor pole simultaneously, produce working resistance, reinforce adjoining rock.The outside equidistant placement chock of the described screw thread body of rod.
Described chock and the screw thread body of rod are by being threaded togather between the two.
The material of the described screw thread body of rod is low-alloy high-tensile structural steel.
Described chock can double thread body of rod Shi Hanzhang.
Described chock is hollow round table shape structure, and inner surface and the external surface of chock are equipped with screw thread, are mutually engaged with the screw thread body of rod by internal thread.
Described truncated cone-shaped structure comprises upper bottom surface and bottom surface, and described upper bottom surface is towards the anchor head of the screw thread body of rod.
On the described screw thread body of rod, the bottom surface side of chock truncated cone-shaped structure is provided with nut and carries out fastening.Arrange at anchor pole and terminate after slip casting completes, to apply certain prestressing force to anchor pole, nut, mainly at bottom surface, is arranged on the spacing fastening effect that bottom surface can realize chock by force part.
The beneficial effects of the utility model are:
(1) anchor pole of the present utility model is based on end anchorage, and the chock along the distribution of body of rod total length can provide certain full length fastening effect, makes two kinds of working method synergy.
(2) the utility model relates to the built-up arch associating principle in Bolt Supporting Theory, after rockbolt installation completes, Rock And Soil interaction formation one built-up arch among a small circle of each chock and surrounding, and these little built-up arches superpose the large built-up arch of formation one mutually, the kata-rocks soil body is made firmly to be suspended on stable Rock And Soil, increase the bulk strength of rock, improve anchor pole anti-pulling capacity, also make rockbolt stress more reasonable simultaneously.
(3) not only can play support action immediately after installing, and anchor pole and surrounding slurries, Rock And Soil seal can ensure its durability, the raising length of service, reduce maintenance workload in the future.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model inverted wedge type anchor rod;
Fig. 2 is the structural representation of two-sided screw thread truncated cone-shaped chock in Fig. 1;
Fig. 3 is the structural representation of large hexagonal head type nut in Fig. 1;
Fig. 4 is the longitudinal sectional view of large hexagonal head type nut in Fig. 1;
In figure, 1 is the high strength screw thread body of rod, and 2 is two-sided screw thread truncated cone-shaped chock, and 3 is large hexagonal head type nut, and 4 is pallet.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1, inverted wedge type anchor rod, it is made up of the high strength screw thread body of rod 1, two-sided screw thread truncated cone-shaped chock 2 and large hexagonal head type nut 3.Wherein the high strength screw thread body of rod 1 is the entire body screw device processed by low-alloy high-tensile structural steel, the high strength screw thread body of rod 1 one end is as anchoring section, be threaded togather by high strength with two-sided screw thread truncated cone-shaped chock 2, and fastening with large hexagonal head type nut 3.
As shown in Figure 2, two-sided screw thread truncated cone-shaped chock 2 two-sidedly all carves threaded high strength truncated cone-shaped hollow board material, will ensure that its screw thread is engaged mutually with the high strength screw thread body of rod 1 screw thread, avoid wrong silk during installation.
As Figure 3-Figure 4, large hexagonal head type nut 3 adopts and cuts fine finishining and form, and its screw thread is with the high strength screw thread body of rod 1, two-sided screw thread truncated cone-shaped chock 2 screw thread and be consistent, the compactness that both guarantees connect.
During use, first two-sided screw thread truncated cone-shaped chock 2 is inverted from the body of rod anchoring section precession high strength gradually screw thread body of rod 1 to precalculated position, and add large hexagonal head type nut 3 fastener at two-sided screw thread truncated cone-shaped chock 2 rear, two-sided screw thread truncated cone-shaped chock 2 is arranged and is got a determining deviation according to calculating, arrangement reverse with anchoring section, the other end, as anchor head, is furnished with pallet 4, large hexagonal head type nut 3, after installation, certain prestressing force is applied to the body of rod.
By reference to the accompanying drawings detailed description of the invention of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (8)
1. an inverted wedge type anchor rod, is characterized in that, comprise outside and establish the threaded screw thread body of rod, one end of the described screw thread body of rod is as anchoring section, and the other end as anchor head, and is furnished with pallet and nut, the outside equidistant placement chock of the described screw thread body of rod.
2. inverted wedge type anchor rod as claimed in claim 1, is characterized in that, described chock and the screw thread body of rod are by being threaded togather between the two.
3. inverted wedge type anchor rod as claimed in claim 1, it is characterized in that, the material of the described screw thread body of rod is low-alloy high-tensile structural steel.
4. inverted wedge type anchor rod as claimed in claim 1, it is characterized in that, described chock can double thread body of rod Shi Hanzhang.
5. inverted wedge type anchor rod as claimed in claim 1, it is characterized in that, described chock is hollow round table shape structure.
6. inverted wedge type anchor rod as claimed in claim 1, it is characterized in that, inner surface and the external surface of described chock are equipped with screw thread, are mutually engaged with the screw thread body of rod by internal thread.
7. inverted wedge type anchor rod as claimed in claim 5, it is characterized in that, described truncated cone-shaped structure comprises upper bottom surface and bottom surface, and described upper bottom surface is towards the anchor head of the screw thread body of rod.
8. inverted wedge type anchor rod as claimed in claim 5, is characterized in that, on the described screw thread body of rod, the bottom surface side of chock truncated cone-shaped structure is provided with nut and carries out fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520064901.7U CN204492856U (en) | 2015-01-29 | 2015-01-29 | A kind of inverted wedge type anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520064901.7U CN204492856U (en) | 2015-01-29 | 2015-01-29 | A kind of inverted wedge type anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204492856U true CN204492856U (en) | 2015-07-22 |
Family
ID=53572181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520064901.7U Expired - Fee Related CN204492856U (en) | 2015-01-29 | 2015-01-29 | A kind of inverted wedge type anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204492856U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632262A (en) * | 2015-01-29 | 2015-05-20 | 山东大学 | Inverted wedge type anchor rod |
-
2015
- 2015-01-29 CN CN201520064901.7U patent/CN204492856U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632262A (en) * | 2015-01-29 | 2015-05-20 | 山东大学 | Inverted wedge type anchor rod |
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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 |
Granted publication date: 20150722 Termination date: 20200129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |