CN202194137U - Hollow grouting fastener for soil fixation - Google Patents
Hollow grouting fastener for soil fixation Download PDFInfo
- Publication number
- CN202194137U CN202194137U CN2011203120806U CN201120312080U CN202194137U CN 202194137 U CN202194137 U CN 202194137U CN 2011203120806 U CN2011203120806 U CN 2011203120806U CN 201120312080 U CN201120312080 U CN 201120312080U CN 202194137 U CN202194137 U CN 202194137U
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- CN
- China
- Prior art keywords
- grouting
- anchor pole
- anchor
- hole
- mortar
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- 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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Abstract
The utility model discloses a hollow grouting fastener for soil fixation. The hollow grouting fastener for the soil fixation comprises a hollow anchor rod on which an anchor head is arranged. The hollow grouting fastener is simple in structure, high in fastening property and convenient to transport and carry; the anchor rod is a grouting tube; after pressure grouting of slurry, a rod body can be anchored, in addition, part of the slurry can permeate through the fracture of an anchor hole, thereby playing a role of reinforcing dangerous rock and ensuring the safety of production and life of people around the dangerous rock.
Description
Technical field
The utility model relates to a kind of securing member, especially relates to a kind of fixing hollow grouting securing member of soil property that is used for, and belongs to the soil property fixed network.
Background technology
Anchor pole is widely used in roadbed, slope treatment, underground deep pit support retaining, tunnel adjoining rock stability, disaster regulations such as prevention landslide, underground engineering support and Ground Treatment of High-rise Buildings.Be applicable to that also the deep foundation ditch spray is protected, the non-prestressed bolt support of side slope soil nailing engineering.Roof-bolter is applicable to the soil nailing (like angle steel, screw-thread steel, steel pipe etc.) of various material.Two kinds of methods of the general employing of making soil nailing wall: the one, through the boring joint bar, slip casting forms grouting rock bolt then, the time-consuming material that takes of this method, and to drift sand formation, the difficult construction of sandstone layer.The 2nd, materials such as indented bars, angle steel, steel pipe are processed soil nailing squeeze into soil layer or sandstone layer formation soil nailing wall with machinery or manual type.When soil property was fixing, especially more special at some lithospheres, soil property was more loose, causes landing during operation in the above easily, need fix soil property.Traditional setting tool complex structure, maintenance cost is high, is not easy to transportation at some field construction environment, and fixing effect is bad, is prone to produce loosening after a period of time.
The utility model content
The purpose of the utility model is to overcome the shortcoming and defect of above-mentioned prior art, and a kind of fixing hollow grouting securing member of soil property that is used for is provided, and this fastener constructions is simple; Fastening performance is high, transports easy to carryly, and anchor pole is exactly a Grouting Pipe; Pressing behind the injection slurry can not only the anchoring body of rod; The part slurries can infiltrate in the crack of anchor hole when grouting pressure was big, played the effect of reinforcing crag, made that the people of periphery produce, the safety of life is protected.
The purpose of the utility model realizes through following technical proposals: be used for the fixing hollow grouting securing member of soil property, comprise the anchor pole of hollow, said anchor pole is provided with anchor head.
One end of said anchor pole is arranged on anchor head inside.
Said anchor head is provided with through hole two.
The outer wall of said anchor pole is provided with the through hole one with its internal communication, and said through hole one is arranged on the end near anchor head, the center line alignment of said through hole one and through hole two.
The outer wall of said anchor pole is provided with screw thread.
Be sheathed with stop grouting plug and nut on the said screw thread, be provided with backing plate between said stop grouting plug and the nut.
Said nut is arranged on the end away from anchor head.
In sum, the beneficial effect of the utility model is: this fastener constructions is simple, and fastening performance is high; Transport easy to carry; Anchor pole is exactly a Grouting Pipe, and pressing behind the injection slurry can not only the anchoring body of rod, and the part slurries can infiltrate in the crack of anchor hole when grouting pressure was big; Play the effect of reinforcing crag, make that the people of periphery produce, the safety of life is protected.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Mark and corresponding component title in the accompanying drawing: 1-anchor head; 2-through hole one; 3-through hole two; 4-anchor pole; 5-screw thread; 6-stop grouting plug; 7-backing plate; 8-nut.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is done further to specify, but the embodiment of the utility model is not limited only to this.
Embodiment:
As shown in Figure 1, be used for the fixing hollow grouting securing member of soil property, comprise the anchor pole 4 of hollow, said anchor pole 4 is provided with anchor head 1.
One end of said anchor pole 4 is arranged on anchor head 1 inside.One end of anchor pole 4 is linked in anchor head 1 inside, is convenient to the fixing of anchor head 1.
Said anchor head 1 is provided with through hole 23.
The outer wall of said anchor pole 4 is provided with the through hole 1 with its internal communication, and said through hole 1 is arranged on the end near anchor head 1, the center line alignment of said through hole 1 and through hole 23.Through through hole 1 and through hole 23, the hollow tube of anchor pole 4 is communicated with bolthole, mortar just can inject bolthole apace through them.
The outer wall of said anchor pole 4 is provided with screw thread 5.Through screw thread 5, strengthen the tautness of anchor pole 4 and rock, be convenient to the installation of stop grouting plug 6 and nut 8 simultaneously.
Be sheathed with stop grouting plug 6 and nut 8 on the said screw thread 5, be provided with backing plate 7 between said stop grouting plug 6 and the nut 8.Stop grouting plug 6 prevents that mortar from overflowing after being used to install back anchor pole 4 from bolthole, increase the conjugation of anchor pole 4 and mortar, and nut 8 is fixed on backing plate 7 on the anchor pole 4.
Said nut 8 is arranged on the end away from anchor head 1.Anchor head 1 plays positioning action, utilizes the shape and the weight of anchor head 1, and anchor pole 4 firmly is fixed in the rock.
(allowable variation ± 150mm), adopt air drill to hole, the aperture is than the big 15mm of external diameter of anchor pole 4 with direction to require to orient the position of bolthole according to design document.Bore good back and bolthole is rinsed well ponding and foreign material such as rock dust, chip in the cleaning hole with high-pressure blast or water under high pressure.Before anchor pole 4 uses, to its align, rust cleaning, oil removing.
Mortar can inject bolthole in several ways, can perhaps directly inject bolthole through the injection mortar of anchor pole 4, inserts anchor pole 4 more rapidly in bolthole.
Mortar in the grouting rock bolt hole also should adopt grouting jar and Grouting Pipe to carry out slip casting.Slip casting begins or Halfway Stopping is used water lubrication grouting jar and pipeline thereof when surpassing 30min, and the injected hole mouth pressure must not should stop up the aperture during slip casting greater than 0.4MPa.Grouting Pipe should be inserted to 5～10 ㎝ places at the bottom of the hole, slowly at the uniform velocity extracts with the injection of cement mortar, and with hand cement paper is blocked the aperture.
Behind anchor head 1 aperture in place, plugging hole saliva mud paper is raised, rapidly anchor pole 4 is inserted immediately and be in place.If the aperture cement-free mortar overflows, explain that to inject mortar not enough, should with anchor pole 4 extract pour into again after skyhook again; The degree of depth in anchor pole 4 patchholes should not be less than design code.When anchor pole 4 is installed, must not arbitrarily knock, must not hang weight in three days.
The full degree of boring slip casting is a key of guaranteeing installation quality, and the technological requirement Grouting Pipe is inserted into 5～10 ㎝ at the bottom of the hole, and slowly at the uniform velocity extracts with the injection of mortar, exactly too fast and cause that mortar disconnects in the hole for fear of tube drawing.Should heavily annotate mortar when mortar is not enough.This all is in order to guarantee that anchor pole 4 total lengths are wrapped up by enough full mortar, to guarantee its anchoring effect.
Soon, arbitrarily knock the adhesion strength that anchor pole 4 will influence mortar and anchor pole 4, mortar and hole wall after ordinary mortar anchor pole 4 is installed, reduce the anchored force of anchor pole.The intensity that ordinary mortar can reach in three days is about 40% of 28 days intensity, therefore, stipulates must not hang weight in three days, and, also not in order to prevent security incident still in order to guarantee anchoring quality.
Deng installing aperture backing plate 7 after the mortar final set, backing plate 7 and scar are adjacent to, and itself and anchor pole 4 are welded, and must not knock anchor pole 4 before the final set arbitrarily with electric welding, must not hang weight, treat to test by code requirement sampling carrying out anchor pole 4 resistance to pluckings after the final set.
Grouting rock bolt 4 operations are first slip casting, after put anchor pole 4 (grouted anchor bar 4 operations are to put the anchor pole grouting behind shaft or drift lining earlier).Anchor pole 4 is laid perpendicular to the excavation outline line.Length in anchor pole 4 patchholes must not be shorter than 95% of design length.Anchor pole 4, backing plate 7 meet design requirement, and backing plate 7 should be close to country rock, and country rock will not filled and not led up with the M10 mortar at ordinary times.
Concrete operations are:
Earlier water is injected in the ox horn pump, water accounts for 2/3 of pump volume, and pours a small amount of mortar into, the moistening pipeline of first setting-out and thin pulp; And then the mortar that will mix up pours in the pump, and Grouting Pipe is inserted to the anchor hole eyeground, pump cover compressed sealing, after everything is ready; Slowly open air-valve and begin slip casting, under air pressure promoted, water was preceding; Mortar after, the moistening pump housing of water and pipeline, the guiding mortar gets in the anchor hole.Along with mortar constantly is pressed into the eyeground, Grouting Pipe is and then used the method that pushes away with hammering, anchor pole 4 insertion eyeground, stops up the eye mouth with stop grouting plug 6 then, prevents that mortar runs off.Grouting pressure is unsuitable excessive, remains on 2 ㎏/㎝ 2 for well; Press when annotating mortar, must keep a close eye on pressure meter, find hypertonia, blowing-out is immediately got rid of and is stopped up; Grouting Pipe is inaccurate places the people, and Grouting Pipe is forbidden to move before not opening air-valve; Seal cover is closed in the joint; In case the shooting of high pressure ejecta is hurted sb.'s feelings when mixing the accelerating admixture mortar, once mixing system mortar quantity should be more than three hole, in order to avoid overlong time is condensed mortar in pump line.Anchor in time cleans facility after annotating and accomplishing.
Take aforesaid way, just can realize the utility model preferably.
Claims (7)
1. be used for the fixing hollow grouting securing member of soil property, it is characterized in that: comprise the anchor pole (4) of hollow, said anchor pole (4) is provided with anchor head (1).
2. the fixing hollow grouting securing member of soil property that is used for as claimed in claim 1, it is characterized in that: an end of said anchor pole (4) is arranged on anchor head (1) inside.
3. the fixing hollow grouting securing member of soil property that is used for as claimed in claim 1, it is characterized in that: said anchor head (1) is provided with through hole two (3).
4. the fixing hollow grouting securing member of soil property that is used for as claimed in claim 3; It is characterized in that: the outer wall of said anchor pole (4) is provided with the through hole one (2) with its internal communication; Said through hole one (2) is arranged on the end near anchor head (1), the center line alignment of said through hole one (2) and through hole two (3).
5. the fixing hollow grouting securing member of soil property that is used for as claimed in claim 1, it is characterized in that: the outer wall of said anchor pole (4) is provided with screw thread (5).
6. the fixing hollow grouting securing member of soil property that is used for as claimed in claim 5 is characterized in that: be sheathed with stop grouting plug (6) and nut (8) on the said screw thread (5), be provided with backing plate (7) between said stop grouting plug (6) and the nut (8).
7. the fixing hollow grouting securing member of soil property that is used for as claimed in claim 6, it is characterized in that: said nut (8) is arranged on the end away from anchor head (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203120806U CN202194137U (en) | 2011-08-24 | 2011-08-24 | Hollow grouting fastener for soil fixation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203120806U CN202194137U (en) | 2011-08-24 | 2011-08-24 | Hollow grouting fastener for soil fixation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202194137U true CN202194137U (en) | 2012-04-18 |
Family
ID=45949056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203120806U Expired - Fee Related CN202194137U (en) | 2011-08-24 | 2011-08-24 | Hollow grouting fastener for soil fixation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202194137U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352625A (en) * | 2011-08-24 | 2012-02-15 | 成都科盛石油科技有限公司 | Hollow grouting fastener for fixing soil texture |
| CN111877565A (en) * | 2020-08-07 | 2020-11-03 | 山东建筑大学 | Microbial grouting anchoring method and structure for pipeline formed by arranging partition plates in cavity |
-
2011
- 2011-08-24 CN CN2011203120806U patent/CN202194137U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352625A (en) * | 2011-08-24 | 2012-02-15 | 成都科盛石油科技有限公司 | Hollow grouting fastener for fixing soil texture |
| CN111877565A (en) * | 2020-08-07 | 2020-11-03 | 山东建筑大学 | Microbial grouting anchoring method and structure for pipeline formed by arranging partition plates in cavity |
| CN111877565B (en) * | 2020-08-07 | 2021-07-02 | 山东建筑大学 | Microbial grouting anchoring method and structure for pipeline formed by arranging partition plates in cavity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20120824 |