CN102352625A - Hollow grouting fastener for fixing soil texture - Google Patents
Hollow grouting fastener for fixing soil texture Download PDFInfo
- Publication number
- CN102352625A CN102352625A CN2011102567075A CN201110256707A CN102352625A CN 102352625 A CN102352625 A CN 102352625A CN 2011102567075 A CN2011102567075 A CN 2011102567075A CN 201110256707 A CN201110256707 A CN 201110256707A CN 102352625 A CN102352625 A CN 102352625A
- Authority
- CN
- China
- Prior art keywords
- anchor
- anchor pole
- grouting
- hole
- mortar
- 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.)
- Pending
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a hollow grouting fastener for fixing soil texture, comprising a hollow anchor rod on which an anchor head is arranged. The fastener is simple in structure, high in fastening performance and convenient to carry; the anchor rod is a grouting pipe can anchor a rod body after being injected with slurry in a pressing way, part of slurry can penetrate into fractures of anchoring holes when the slurry injection pressure is larger to play a role in reinforcing a dangerous rock so that the safety of production and living of surrounding people are ensured.
Description
Technical field
The present invention relates to a kind of securing member, especially relate to a kind of fixing hollow grouting securing member of soil property that is used for, belong 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.
Summary of the invention
The objective of the invention is to overcome the shortcoming and defect of above-mentioned prior art; A kind of fixing hollow grouting securing member of soil property that is used for is provided; 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 object of the invention is realized 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 invention has the beneficial effects as follows: this fastener constructions is simple; 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 a structural representation of the present invention.
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 present invention is done further detailed description, but embodiment of the present invention 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, illustrate that to inject mortar not enough, anchor pole 4 should be extracted 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; Just setting-out and the moistening pipeline of 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 is compressed sealing; After everything is ready, slowly open air-valve and begin slip casting, under air pressure promotes; Water is 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 present invention 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 |
|---|---|---|---|
| CN2011102567075A CN102352625A (en) | 2011-08-24 | 2011-08-24 | Hollow grouting fastener for fixing soil texture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102567075A CN102352625A (en) | 2011-08-24 | 2011-08-24 | Hollow grouting fastener for fixing soil texture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102352625A true CN102352625A (en) | 2012-02-15 |
Family
ID=45576256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102567075A Pending CN102352625A (en) | 2011-08-24 | 2011-08-24 | Hollow grouting fastener for fixing soil texture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102352625A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436748A (en) * | 2016-07-04 | 2017-02-22 | 中国电建集团华东勘测设计研究院有限公司 | Rock anchor foundation structure applicable to mountain photovoltaic assembly and construction method thereof |
| CN111894627A (en) * | 2020-08-10 | 2020-11-06 | 中铁六局集团有限公司 | Construction method for graded dismantling of shield negative ring pipe piece |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2622392Y (en) * | 2003-05-19 | 2004-06-30 | 上海禧龙工程安装有限公司 | Hollow high strength anchor-bolt grouting anchorage piece |
| CN201377331Y (en) * | 2009-02-23 | 2010-01-06 | 成都现代万通锚固技术有限公司 | Full-length pressure grouting anchor rod |
| CN202194137U (en) * | 2011-08-24 | 2012-04-18 | 成都科盛石油科技有限公司 | Hollow grouting fastener for soil fixation |
-
2011
- 2011-08-24 CN CN2011102567075A patent/CN102352625A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2622392Y (en) * | 2003-05-19 | 2004-06-30 | 上海禧龙工程安装有限公司 | Hollow high strength anchor-bolt grouting anchorage piece |
| CN201377331Y (en) * | 2009-02-23 | 2010-01-06 | 成都现代万通锚固技术有限公司 | Full-length pressure grouting anchor rod |
| CN202194137U (en) * | 2011-08-24 | 2012-04-18 | 成都科盛石油科技有限公司 | Hollow grouting fastener for soil fixation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436748A (en) * | 2016-07-04 | 2017-02-22 | 中国电建集团华东勘测设计研究院有限公司 | Rock anchor foundation structure applicable to mountain photovoltaic assembly and construction method thereof |
| CN111894627A (en) * | 2020-08-10 | 2020-11-06 | 中铁六局集团有限公司 | Construction method for graded dismantling of shield negative ring pipe piece |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202509532U (en) | Multi-rib tension type anti-floating anchor | |
| CN104746517B (en) | A kind of suspension roof support system of total length below artesian head | |
| CN103321653B (en) | Method of treating lining after collapse of underground cavern crown | |
| CN104831734B (en) | A kind of deep basal pit building rotary churning pile Composition Soil Nailing Walls construction method | |
| CN104612134A (en) | Cast-in place pile post-grouting construction method for pouring construction | |
| CN104453913A (en) | Vertical shaft working face ahead pre-grouting method | |
| CN100363560C (en) | Method for treating collapsed road surface around inspection-pit for underground lines | |
| CN203223229U (en) | Coal mine roadway uniformly distributing grouting structure | |
| CN201310362Y (en) | Installing device of high pressure water burst drill hole bore pipe | |
| CN104074190A (en) | Secondary high-pressure grouting expansion bit anchor rod and construction method thereof | |
| CN202509533U (en) | Single reinforcement pulling force type anti-floating anchor rod | |
| CN102852141A (en) | Rock-socketed pipe pile foundation with pile core by concrete pouring and pile side by static pressure grouting and construction method for rock-socketed pipe pile foundation | |
| CN203321531U (en) | Lining processing structure for underground cavern after collapse of top arch | |
| CN108035754A (en) | A kind of roadway bolt anchor cable combination supporting method | |
| CN103089276A (en) | Deep-shallow hole and high-low pressure coupling grouting technology | |
| CN102877470B (en) | Combined soil nailing construction method for supporting | |
| CN106838463B (en) | The fastener inserts and usage of longitudinal overall stiffness after raising rectangular top plumber | |
| CN202194137U (en) | Hollow grouting fastener for soil fixation | |
| CN206971247U (en) | A kind of concrete plinth foundation ruggedized construction being placed on Unloading Rock | |
| CN109763486A (en) | A kind of displaced type rotary jet grouting anchor pole and construction method | |
| CN102352625A (en) | Hollow grouting fastener for fixing soil texture | |
| CN108677959A (en) | A kind of grouting tube and grouting construction method suitable for mortar depositing construction under the conditions of limited space | |
| CN102286979A (en) | Construction method for deep foundation pit supporting by adopting steel pipe piles-self-drilling prestressed anchor bars | |
| CN202482860U (en) | Self-drilling helical anchor rod | |
| CN102704478B (en) | Building anchor rod construction technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120215 |