CN203742638U - Anchoring and energy-absorbing anchor-rod device used for controlling deep rock mass - Google Patents
Anchoring and energy-absorbing anchor-rod device used for controlling deep rock mass Download PDFInfo
- Publication number
- CN203742638U CN203742638U CN201420026206.7U CN201420026206U CN203742638U CN 203742638 U CN203742638 U CN 203742638U CN 201420026206 U CN201420026206 U CN 201420026206U CN 203742638 U CN203742638 U CN 203742638U
- Authority
- CN
- China
- Prior art keywords
- rod
- rock mass
- anchoring
- energy
- elongated body
- 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
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model provides an anchoring and energy-absorbing anchor-rod device used for controlling a deep rock mass. The anchoring and energy-absorbing anchor-rod device comprises a short and thick thread steel rod body, a long and thin rod body, rivets, a quaquaversal base plate and a fastening nut. The short and thick thread steel rod body is in smooth connection with the long and thin rod body. The diameter of the short and thick thread steel rod body is equal to the sum of the diameter of the long and thin rod body and the lengths of two rivets. The rivets are evenly distributed on the long and thin rod body in an inverted-wedge mode. The other end of the long and thin rod body is connected with the quaquaversal base plate and fixed through the fastening nut. According to the anchoring and energy-absorbing anchor-rod device, through sufficient stirring and the inverted-wedge distribution mode of the rivets, the anchoring effect of medium-length anchor rods and super-long anchor rods in the deep engineering rock mass can be improved effectively; through yielding of the rivets, deformation energy of a part of the rock mass can be adsorbed, and therefore the anchoring effect of the anchor rods can reach the requirement for controlling the deep engineering rock mass better. The anchoring and energy-absorbing anchor-rod device has the advantages of being simple in structure and convenient to install.
Description
Technical field
The utility model relates to a kind of for controlling the anchoring energy-absorption anchor rod device of deep rock mass.
Background technology
Anchor pole, as a kind of active support form, is widely used in underground construction.But after entering into deep underground mining, because deep rock mass has the feature such as large deformation and lasting rheology under high-ground stress effect, and rock burst frequency increases.The left hand thread steel anchor rod generally adopting at present is not well positioned to meet the demand of deep underground construction, is mainly manifested in anchoring efficiency not high, and the anchoring efficiency of especially long anchor pole or extra long anchor bar and anchoring effect are not very desirable.Meanwhile, along with increasing of rock burst, require anchor rod device should there is certain energy-absorbing effect, can resist or weaken the destruction of rock burst.Therefore, need a kind of efficiently anchoring badly and there is the anchor rod device of certain energy-absorbing effect.
Summary of the invention
For solving the problems of the technologies described above, it is a kind of simple in structure, easy for installation for controlling the anchoring energy-absorption anchor rod device of deep rock mass that the utility model provides.
The technical scheme that the utility model solves the problems of the technologies described above is:
A kind of for controlling the anchoring energy-absorption anchor rod device of deep rock mass, comprise the short and thick screw-thread steel body of rod, the elongated body of rod, rivet, vaulted backing plate and clamp nut, one end smooth connection of the described short and thick screw-thread steel body of rod and the elongated body of rod, described rivet is down wedge-type and is distributed on the described elongated body of rod, the other end of the described elongated body of rod connects vaulted backing plate, and the convex surface of described vaulted backing plate is fixed by clamp nut.
Further, above-mentioned for controlling the anchoring energy-absorption anchor rod device of deep engineering rock mass, the diameter of the described short and thick screw-thread steel body of rod equals the length sum of diameter and two rivets of the elongated body of rod.
Further, above-mentioned for controlling the anchoring energy-absorption anchor rod device of deep engineering rock mass, the described short and thick screw-thread steel body of rod, the elongated body of rod, rivet, vaulted backing plate and clamp nut are made by high strength steel.
Further, above-mentioned for controlling the anchoring energy-absorption anchor rod device of deep engineering rock mass, described short and thick screw-thread steel body of rod length is tried to achieve by formula (1),
Wherein, L is short and thick screw-thread steel body of rod length; [σ
max] be the ultimate tensile strength of the elongated body of rod; [τ
max] be the ultimate shearing strength on short and thick screw-thread steel body of rod surface; D is elongated body of rod diameter; D is short and thick body of rod diameter.
Further, above-mentioned for controlling the anchoring energy-absorption anchor rod device of deep engineering rock mass, described rivet and the elongated body of rod are for being welded to connect, and weld adopts the processing of flow harden process strengthening; Total shearing resistance of described rivet is less than the limit stretching resistance of the described elongated body of rod.
The beneficial effects of the utility model are:
1) the utility model is simple in structure, easy for installation;
2) the short and thick screw-thread steel body of rod of the present utility model can guarantee that one end of anchor rod body is fastened in deep rock mass all the time, for the thin anchor rod body of superficial part provides tensile stress, thereby provides higher Support Resistance to rock mass, the unstable distortion of restriction country rock;
3) the elongated body of rod of the present utility model and the short and thick screw-thread steel body of rod are chamfering smooth connection, and elongate rod physical efficiency is transmitted the tensile stress of short and thick screw-thread steel shank portion, and continuing provides higher Support Resistance to rock mass;
4) rivet of the present utility model is the layout of falling wedge-type, not only can improve the anchoring effect of long anchor pole and extra long anchor bar, and rivet can produce surrender in the Rheological Deformation process of rock mass, can absorption portion rock mass deformation energy in offset procedure, therefore, in the time that occurring, rock burst can provide certain energy-absorbing function;
5) vaulted backing plate of the present utility model can not only provide higher supporting power for rock mass surface, also has certain compressive strain ability that allows, to adapt to large deformation and the absorption portion rock mass sex change energy of rock mass;
6) clamp nut of the present utility model can pass to backing plate by the tensile stress of anchor rod body, thereby makes vaulted backing plate be close to crag, continues to provide surperficial supporting power.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is I-I cutaway view Amplified image of the present utility model.
Fig. 3 is the partial enlarged drawing of the utility model P.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, the utility model comprises the short and thick screw-thread steel body of rod 1, the elongated body of rod 2, rivet 3, vaulted backing plate 4 and clamp nut 5, one end smooth connection of the short and thick screw-thread steel body of rod 1 and the elongated body of rod 2, rivet 3 is down wedge-type and is distributed on the elongated body of rod 2, the layout of rivet 3 as shown in Figure 3, the other end of the elongated body of rod 2 connects vaulted backing plate 4, and the convex surface of vaulted backing plate 4 is fixing by clamp nut 5.As shown in Figure 2, the diameter of the short and thick screw-thread steel body of rod 1 equals the length sum of diameter and two rivets 3 of the elongated body of rod 2.
First, bolt product is become to the short and thick screw-thread steel body of rod 1 and the elongated body of rod 2 as shown in Figure 1, and on the elongated body of rod uniform rivet 3, just formed anchoring energy-absorption anchor rod device of the present utility model in conjunction with vaulted backing plate 4 and clamp nut 5.
Then, carry out scene and install, after putting into Anchor Agent, will be pressed in anchor hole and stir with the anchor rod body of rivet, then install vaulted backing plate and clamp nut in the anchor hole of accomplishing fluently, whole installation process be simple, convenient.
Claims (4)
1. for controlling an anchoring energy-absorption anchor rod device for deep rock mass, it is characterized in that: comprise the short and thick screw-thread steel body of rod, the elongated body of rod, rivet, vaulted backing plate and clamp nut; One end smooth connection of the described short and thick screw-thread steel body of rod and the elongated body of rod, described rivet is down wedge-type and is distributed on the described elongated body of rod, and the other end of the described elongated body of rod connects vaulted backing plate, and the convex surface of described vaulted backing plate is fixed by clamp nut.
2. according to claim 1 for controlling the anchoring energy-absorption anchor rod device of deep rock mass, it is characterized in that: the diameter of the described short and thick screw-thread steel body of rod equals the length sum of diameter and two rivets of the elongated body of rod.
3. according to claim 1 for controlling the anchoring energy-absorption anchor rod device of deep rock mass, it is characterized in that: the described short and thick screw-thread steel body of rod, the elongated body of rod, rivet, vaulted backing plate and clamp nut are made by high strength steel.
4. according to claim 1 for controlling the anchoring energy-absorption anchor rod device of deep rock mass, it is characterized in that: described rivet and the elongated body of rod are for being welded to connect, and weld adopts the processing of flow harden process strengthening; Total shearing resistance of described rivet is less than the limit stretching resistance of the described elongated body of rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420026206.7U CN203742638U (en) | 2014-01-16 | 2014-01-16 | Anchoring and energy-absorbing anchor-rod device used for controlling deep rock mass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420026206.7U CN203742638U (en) | 2014-01-16 | 2014-01-16 | Anchoring and energy-absorbing anchor-rod device used for controlling deep rock mass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203742638U true CN203742638U (en) | 2014-07-30 |
Family
ID=51342454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420026206.7U Expired - Fee Related CN203742638U (en) | 2014-01-16 | 2014-01-16 | Anchoring and energy-absorbing anchor-rod device used for controlling deep rock mass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203742638U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696791A (en) * | 2014-01-16 | 2014-04-02 | 湖南科技大学 | Anchoring energy-absorbing anchor rod device for controlling deep rock mass |
| CN105155567A (en) * | 2015-07-29 | 2015-12-16 | 福建荣盛钢结构实业有限公司 | Novel sill anchor and forming process thereof |
| CN107725088A (en) * | 2017-11-01 | 2018-02-23 | 中国科学院武汉岩土力学研究所 | A kind of anti-rock burst and large deformation wing formula splitting type energy-absorption anchor rod and structure |
-
2014
- 2014-01-16 CN CN201420026206.7U patent/CN203742638U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696791A (en) * | 2014-01-16 | 2014-04-02 | 湖南科技大学 | Anchoring energy-absorbing anchor rod device for controlling deep rock mass |
| CN103696791B (en) * | 2014-01-16 | 2016-06-29 | 湖南科技大学 | A kind of anchoring energy-absorption anchor rod device for controlling deep rock mass |
| CN105155567A (en) * | 2015-07-29 | 2015-12-16 | 福建荣盛钢结构实业有限公司 | Novel sill anchor and forming process thereof |
| CN107574819A (en) * | 2015-07-29 | 2018-01-12 | 福建荣盛钢结构实业有限公司 | A kind of high intensity major diameter prestressing force sill anchor and its making construction method |
| CN107574819B (en) * | 2015-07-29 | 2019-10-15 | 福建荣盛钢结构实业有限公司 | It is a kind of high intensity major diameter prestressing force sill anchor and its production construction method |
| CN107725088A (en) * | 2017-11-01 | 2018-02-23 | 中国科学院武汉岩土力学研究所 | A kind of anti-rock burst and large deformation wing formula splitting type energy-absorption anchor rod and structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206397530U (en) | A kind of self extending large deformation anchor rod | |
| CN203742638U (en) | Anchoring and energy-absorbing anchor-rod device used for controlling deep rock mass | |
| CN205225302U (en) | It hinders stock to let press to increase | |
| CN203201146U (en) | Spacers for column template reinforcement | |
| CN207018016U (en) | A kind of new shear anchor arm | |
| CN103696791B (en) | A kind of anchoring energy-absorption anchor rod device for controlling deep rock mass | |
| CN201407266Y (en) | Clamping type expansion screw | |
| CN101745983A (en) | A kind of tubular pile pre-stress stretching device | |
| CN204113316U (en) | A kind of interval screw rod body formula large deformation anchor rod | |
| CN202689546U (en) | Special fastening clamp for building wall body ring beam template | |
| CN204532188U (en) | A kind of for core drilling reaction rack equipment in hole | |
| CN203081952U (en) | Drive pin fastening and connecting device | |
| CN203856489U (en) | Combined energy-releasing anchor rod having characteristics of resilient yielding and large damping | |
| CN204357005U (en) | Pre-stress FRP bar stretching and anchoring device | |
| CN111395568A (en) | Replaceable shape memory alloy composite shock insulation support | |
| CN203655327U (en) | Full-length anchorage supporting coordinating deformation anchoring device | |
| CN201209455Y (en) | Pre-stress flexible anchoring bolt body and the anchor rod | |
| CN103174261A (en) | Carbon fiber board clamping piece with arc-shaped surface | |
| CN207569005U (en) | Gasket separate type unilateral bolt fastener | |
| CN203160543U (en) | Arc-surface carbon-fiber board clamping piece | |
| CN202251296U (en) | Novel expansion screw | |
| CN202418144U (en) | Bolt with arc-shaped steel plate nut | |
| CN204827497U (en) | Visual prestressing force resistance to plucking resin stock | |
| CN205063192U (en) | Heading formula sleeve pipe mechanical connection of high tensile reinforcement | |
| CN202381475U (en) | Steel expansion bolt having hole wall with relatively large friction surface |
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: 20140730 Termination date: 20170116 |