CN201390962Y - Reinforcing steel bar anchor rod anticorrosion structure - Google Patents
Reinforcing steel bar anchor rod anticorrosion structure Download PDFInfo
- Publication number
- CN201390962Y CN201390962Y CN200920080073U CN200920080073U CN201390962Y CN 201390962 Y CN201390962 Y CN 201390962Y CN 200920080073 U CN200920080073 U CN 200920080073U CN 200920080073 U CN200920080073 U CN 200920080073U CN 201390962 Y CN201390962 Y CN 201390962Y
- Authority
- CN
- China
- Prior art keywords
- anchor rod
- anchor
- rod body
- anticorrosion structure
- steel bar
- 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 - Lifetime
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Abstract
The utility model discloses a reinforcing steel bar anchor rod anticorrosion structure and aims at effectively preventing the reinforcing steel bar anchor rod from corroding. The structure comprises an anchor eye and an anchor rod body (10) that is centered and installed in the anchor eye, wherein at least one layer of circular metal gauze (11) is arranged at intervals outside the surface layer of the anchor rod body (10) along the radial direction; and after hardened, the cement slurry injected in the anchor eye forms an injection body (20) which is cemented with the anchor rod body (10) and the circular metal gauze (11) as a whole. As the circular metal gauze embedded in the injection body can obstruct a possible crack to prevent the crack from running through the surface layer of the anchor rod body, the anticorrosion structure has the beneficial effects of effectively preventing the reinforcing steel bar anchor rod from corroding, greatly prolonging the service life of the reinforcing steel bar anchor rod and consequently ensuring the safety of stabilization works.
Description
Technical field
The utility model relates to anchor pole, particularly the anticorrosion structure of anchor pole.
Background technology
Since the sixties in last century, China is a large amount of bolt anchorage technology of using in many railway tunnel, national defence people's air defense tunnel, Hydropower Station Underground, ground high slope, harbour bank slope, bridge pier culvert and base pit engineering.The advance and the economy of bolt anchorage are indubitable, but the problem of its corrosion condition and safety that causes thus and durability is very outstanding, must attract great attention.
The main cause that causes the anchor pole corrosion fracture is improper the causing of anti-corrosion measure that phreatic corrosiveness and work progress are taked anchor pole.The chemical composition of the soil body has great influence to the generation and the development of corrosion, special accelerated corrosion greatly when having sodium salt, calcium salt and magnesium salts in the soil body, its reason is the solubility height of these salt, is easily formed electrolyte by the water decomposition in the stratum, and the condition of electrochemical corrosion is provided for anchor pole; When other corrosive medium, also can cause the anchor pole corrosion in addition.Therefore, anchor pole corrosion-resistant major measure is exactly that isolated anchor pole contacts with corrosive medium in the underground water.
At present, anchor pole corrosion-resistant major measure has following two kinds: protection tube, the plastics or the metal sleeve of enough flexibilities are promptly arranged in the anchor rod body upper jacket, with stop in the stratum pernicious gas and underground water by injecting cement paste to anchor rod body infiltration corrosion anchor rod body.Owing to be subjected to protection tube material ageing resistace, the restriction in application life, be difficult to reach the design service life of anchor pole in actual the use, and protection tube cracky in anchor bolt construction, cause the anchor pole anti-corrosion measure to lose efficacy; Cement slurry (cement paste, cement mortar) is promptly filled in slip casting protection in anchor hole in anchor bolt construction, the injecting cement paste after the sclerosis tightly wraps up anchor rod body and fixedly is one, to stop in the stratum pernicious gas and underground water by penetrating into anchor rod body.Under the effect of load or ground movement, injecting cement paste tends to produce the crack, and these cracks can connect to the anchor rod body top layer, thereby causes safeguard procedures to lose efficacy, and anchor pole can't reach design service life.
The utility model content
Technical problem to be solved in the utility model provides the anticorrosion structure of a kind of reinforced anchor bolt, can prevent effectively that reinforced anchor bolt from corroding, and improves the application life of reinforced anchor bolt significantly, thereby guarantees the safety of stabilization works.
The technical scheme that its technical problem that solves the utility model adopts is: the anticorrosion structure of reinforced anchor bolt of the present utility model, be installed in the anchor rod body in the anchor hole in comprising anchor hole and deciding, it is characterized in that: be provided with one deck endless metal net at least at its outer, top layer spaced radial on the described anchor rod body, the cement slurry sclerosis back of injecting in the anchor hole forms injecting cement paste, and this injecting cement paste and anchor rod body, the endless metal net is fixed is an integral body.
The beneficial effects of the utility model are, because the endless metal net that is embedded in the injecting cement paste can cut off the crack that may occur, avoid the crack to connect to the anchor rod body top layer, therefore can prevent effectively that reinforced anchor bolt from corroding, improve the application life of reinforced anchor bolt significantly, thereby guarantee the safety of stabilization works.
Description of drawings
This manual comprises following two width of cloth accompanying drawings:
Fig. 1 is the structural representation of the anticorrosion structure of the utility model reinforced anchor bolt;
Fig. 2 is the zoomed-in view of local A among Fig. 1.
Component shown in the figure, toponym and pairing mark: anchor rod body 10, endless metal net 11, supporting member 12, injecting cement paste 20, decide medium-height trestle 21.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
With reference to Fig. 1, the anticorrosion structure of reinforced anchor bolt of the present utility model, be installed in the anchor rod body 10 in the anchor hole in comprising anchor hole and deciding, be provided with one deck endless metal net 11 at least at its outer, top layer spaced radial on the described anchor rod body 10, the cement slurry sclerosis back of injecting in the anchor hole forms injecting cement paste 20, and this injecting cement paste 20 and anchor rod body 10, endless metal net 11 are fixed to be one.Can cut off the crack that may occur owing to be embedded in the endless metal net 11 of injecting cement paste interior 20, avoid the crack to connect to anchor rod body 10 top layers, therefore can prevent effectively that reinforced anchor bolt from corroding, improve the application life of reinforced anchor bolt significantly, thereby guarantee the safety of stabilization works.
Fig. 1 and Fig. 2 show a kind of connected mode of endless metal net 11 and anchor rod body 10, and promptly longitudinal separation is set with supporting member 12 on the top layer of anchor rod body 10, and endless metal net 11 is fixedlyed connected with supporting member 12.Supporting member 12 can adopt around anchor rod body 10 top layers and with it the welding reinforcing bar.With reference to Fig. 1, longitudinal separation is provided with and decides medium-height trestle 21 in the described anchor hole, makes anchor rod body 10 can decide middle the installation in the anchor hole, and makes the injecting cement paste 20 thickness uniformities outside anchor rod body 10 top layers.
For making endless metal net 11 fixed tight with injecting cement paste 20, described endless metal net 11 preferably adopts the zinc-plated wire gauze of right and wrong, can select the wire gauze of iron wire diameter 1～2mm, mesh distance 3～6mm usually for use.The quantity of endless metal net 11 is one deck or along anchor rod body 10 radially spaced multilayers.The thickness of injecting cement paste 20 is generally more than the 15mm, is the best with 20～30mm generally.
Some principles of the above anticorrosion structure of the utility model reinforced anchor bolt that just explains through diagrams, be not be the utility model to be confined to shown in and in described concrete structure and the scope of application, so every the corresponding modify and equivalent that might be utilized all belongs to the claim that the utility model is applied for.
Claims (5)
1. the anticorrosion structure of reinforced anchor bolt, be installed in the anchor rod body (10) in the anchor hole in comprising anchor hole and deciding, it is characterized in that: described anchor rod body (10) is gone up and is provided with one deck endless metal net (11) at least at its outer, top layer spaced radial, the cement slurry sclerosis back of injecting in the anchor hole forms injecting cement paste (20), and this injecting cement paste (20) and anchor rod body (10), endless metal net (11) is fixed is an integral body.
2. the anticorrosion structure of reinforced anchor bolt as claimed in claim 1 is characterized in that: longitudinal separation is set with supporting member (12) on the top layer of described anchor rod body (10), and endless metal net (11) is fixedlyed connected with supporting member (12).
3. the anticorrosion structure of reinforced anchor bolt as claimed in claim 2 is characterized in that: described supporting member (12) for around anchor rod body (10) top layer and with it the welding reinforcing bar.
4. the anticorrosion structure of reinforced anchor bolt as claimed in claim 1 is characterized in that: longitudinal separation is provided with and decides medium-height trestle (21) in the described anchor hole.
5. as any anticorrosion structure of described reinforced anchor bolt of claim 1 to 4, it is characterized in that: what described endless metal net (11) adopted is wire gauze.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920080073U CN201390962Y (en) | 2009-04-08 | 2009-04-08 | Reinforcing steel bar anchor rod anticorrosion structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920080073U CN201390962Y (en) | 2009-04-08 | 2009-04-08 | Reinforcing steel bar anchor rod anticorrosion structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201390962Y true CN201390962Y (en) | 2010-01-27 |
Family
ID=41597785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920080073U Expired - Lifetime CN201390962Y (en) | 2009-04-08 | 2009-04-08 | Reinforcing steel bar anchor rod anticorrosion structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201390962Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162273A (en) * | 2018-09-05 | 2019-01-08 | 江苏兴厦建设工程集团有限公司 | A kind of novel anchor rod stake |
| CN109235431A (en) * | 2018-10-11 | 2019-01-18 | 中南林业科技大学 | A kind of moso bamboo anchor pole and its construction method |
-
2009
- 2009-04-08 CN CN200920080073U patent/CN201390962Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162273A (en) * | 2018-09-05 | 2019-01-08 | 江苏兴厦建设工程集团有限公司 | A kind of novel anchor rod stake |
| CN109235431A (en) * | 2018-10-11 | 2019-01-18 | 中南林业科技大学 | A kind of moso bamboo anchor pole and its construction method |
| CN109235431B (en) * | 2018-10-11 | 2023-11-07 | 中南林业科技大学 | Moso bamboo anchor rod and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100127 |
|
| CX01 | Expiry of patent term |