CN104846823A - Full-bonding cement mortar anchor rod and grouting method - Google Patents
Full-bonding cement mortar anchor rod and grouting method Download PDFInfo
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- CN104846823A CN104846823A CN201510251177.3A CN201510251177A CN104846823A CN 104846823 A CN104846823 A CN 104846823A CN 201510251177 A CN201510251177 A CN 201510251177A CN 104846823 A CN104846823 A CN 104846823A
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- anchor rod
- cement mortar
- rod body
- grouting
- stack
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Abstract
The invention provides a full-bonding cement mortar anchor rod which comprises an anchor rod body, wherein an exhaust pipe is arranged on the anchor rod body. A grouting method adopting the full-bonding cement mortar anchor rod comprises following steps: inserting the anchor rod body into an anchor rod hole, setting a grouting pipe at the pipe port, and using anchoring agent or cement mortar for fixing the grouting pipe at the hole port of the anchor rod hole for blocking the hole port; when blocking strength of the anchor rod hole reaches certain strength, grouting for the anchor rod hole from the grouting pipe, and the air is discharged from the exhaust pipe during the grouting process; full-bonding cement mortar anchor rod grouting operation can be achieved by the steps. The grouting operation is achieved after that the anchor rod body is inserted into the anchor rod hole, and the problem of the earlier grouting method which is limited by the cement mortar coagulation time can be solved. Grouting operation can be finished in a concentration mode or batch mode after inserting rod in a large-scale mode, so that the technology is simplified, the anchor rod mounting speed is greatly improved, the labor intensity is reduced, the work efficiency is improved and the construction cost is saved.
Description
Technical field
The present invention relates to construction work rock reinforcement and underground chamber mortar depositing construction field, particularly bond anchor rod with cement mortar and grouting method entirely.
Background technology
At present, what full bonding anchor rod with cement mortar installed extensively employing is the method for inserting anchor pole after first slip casting.This method is in the bolthole bored, Grouting Pipe is inserted at the bottom of bolthole, utilize slurry filling machine by the bottom of cement mortar injection hole, Grouting Pipe is along with the injection of mortar, slowly extract bolthole, after Grouting Pipe all being extracted, insert anchor rod body rapidly, then with blocking apertures such as timber wedges, mortar is prevented to run off.
The method of anchor pole is inserted after adopting first slip casting, on the one hand because the cement mortar of first pouring into has the restriction of time of setting, so the cement mortar of each mixing can not be too many, and with mix with, the bolthole quantity of each perfusion can not be too many, and the mortar quantity of a general mixing should more than 3 holes, in order to avoid overlong time, mortar is condensed in grouting equipment or hole, causes that rockbolt installation speed is slow, labour intensity is high, work efficiency is low; On the other hand because cement mortar has certain mobility, first cement injection mortar in the bolthole bored, especially the bolthole of constructing towards sky of elevation angle bolthole and underground cavern crown, mortar can flow out under its Gravitative Loads, so at perfusion mortar and when inserting anchor pole, mortar waste is serious, and anchor pole quality cannot be guaranteed; In addition, insert the method for anchor pole after first slip casting, due at insertion anchor pole, particularly during artificial construction, the resistance of the mortar poured in advance, muscle power expends greatly, labour intensity is high, and cost is high and there is certain potential safety hazard.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of full bonding anchor rod with cement mortar and grouting method, can improve rockbolt installation speed, reduce labour intensity, reduce the waste of Anchor Agent or cement mortar, guarantees anchor bolt construction quality, reduces construction cost.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: one bonds anchor rod with cement mortar entirely, and comprise anchor rod body, anchor rod body is provided with stack.
In optional scheme, described stack is outer stack, and outer stack is by fixedly fastening the outer wall at anchor rod body.
In the scheme of further optimization, the termination, outer end of outer stack exceeds the termination, outer end of anchor rod body.
In another optional scheme, described stack is inside exhaust pipe.
In the scheme of further optimization, described inside exhaust pipe is the groove being positioned at anchor rod body outer wall, forms after closure tip.
In the scheme of further optimization, described groove is the helicla flute around anchor rod body outer wall.
In the scheme of further optimization, the inner of anchor rod body is protruding, and the opening of inside exhaust pipe is lower than the top of projection.
Adopt a grouting method for above-mentioned full bonding anchor rod with cement mortar, comprise the following steps:
One, anchor rod body is inserted bolthole, grout pipe is set at the mouth of pipe, and be fixed on bolthole orifice position by Anchor Agent or cement mortar, form aperture blocking;
Two, after the blocking of anchor pole aperture has some strength, carry out slip casting from grout pipe to bolthole, the air in slip casting process is discharged from stack;
The slip casting of full bonding anchor rod with cement mortar is realized by above step.
In the scheme optimized, after the blocking firmly of aperture, pass into air from grout pipe, whether test stack is unobstructed.
One provided by the invention bonds anchor rod with cement mortar and grouting method entirely, can carry out mortar depositing construction again after anchor rod body is inserted bolthole, eliminates the problem of first slip casting method by cement mortar restriction time of setting.Employing the present invention can after completing inserted link on a large scale, and concentrate once or slip casting in batches, Simplified flowsheet, increases substantially rockbolt installation speed, reduces labour intensity, improves work efficiency; Stop spillage, running pulp, many slip casting phenomenon, Anchor Agent or cement mortar can not have been wasted, save construction cost; Do not have the resistance of Anchor Agent or cement mortar when inserting anchor pole, manpower can complete, and does not need equipment to assist, easy construction and safety.Mortar injection is under slurry filling machine effect, and adjustable grouting pressure, slip casting plumpness is reliable, and anchor pole quality is easy to ensure.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the structural representation of anchor pole in the present invention.
Structural representation when Fig. 2 is slip casting of the present invention.
Fig. 3 is the cross-sectional structure schematic diagram of another optional anchor pole in the present invention.
Fig. 4 is the main TV structure schematic diagram of another optional anchor pole in the present invention.
Fig. 5 is the cross-sectional structure schematic diagram of preferred anchor pole further in the present invention.
In figure: anchor rod body 1, outer stack 2, inside exhaust pipe 2', fixing card 3, grout pipe 4, aperture blocking 5, bolthole 6.
Detailed description of the invention
Embodiment 1:
As in Fig. 1,4, one bonds anchor rod with cement mortar entirely, and comprise anchor rod body 1, anchor rod body 1 is provided with stack.Structure thus, is convenient to be inserted into after in bolthole 6 at anchor rod body 1, in filling process, is discharged by the gas in bolthole 6, so that realize the construction of first inserting anchor pole grouting behind shaft or drift lining.
Embodiment 2:
On the basis of embodiment 1, in optional scheme, described stack is outer stack 2, and outer stack 2 is fixed on the outer wall of anchor rod body 1 by fixing card 3.In this example, outer stack 2 adopts internal diameter 4 ~ 5mm, the flexible plastic tube of wall thickness 1 ~ 1.5mm is made.Flexible plastic tube leaves in anchor rod body 1 outer end the excess length being not less than 50cm, flexible plastic tube fixation and smooth-going, without damaged and joint, and smooth gas discharge.
The scheme of further optimization is as in Fig. 2,3, the termination, outer end of outer stack 2 exceeds the termination, outer end of anchor rod body 1, and the inner termination of outer stack 2 is concordant with the inner of anchor rod body 1, preferably, the inner termination of outer stack 2 is set to inclined-plane, so that exhaust.Structure thus, using outer stack 2 as stack during slip casting, is convenient to transform existing anchor rod body 1.While raising installation rate, also reduce cost.
Embodiment 3:
On the basis of embodiment 1, another optional scheme is as in Fig. 3 ~ 5, and described stack is inside exhaust pipe 2'.Structure is more compact thus, compared with embodiment 2, also avoids outer stack 2 to affect adhesive stress.
In the scheme of further optimization, described inside exhaust pipe 2' is the groove being positioned at anchor rod body 1 outer wall, forms after closure tip.First to cold pressing or the mode of hot pressing, anchor rod body 1 extrudes groove, the degree of depth of groove is greater than the width of groove, then extrude after 700-1200 DEG C being heated to the surface induction of anchor pole, make the top seal of groove, form inside exhaust pipe 2', its cross section is as shown in Fig. 3,5, adopt more groove, then the diameter of each groove can do less, even if the groove of part and inside exhaust pipe 2' is blocked also can not affect whole mortar depositing construction.Structure thus, more compact, construct also more quick.
The scheme of further optimization is as in Fig. 4, and described groove is the helicla flute around anchor rod body 1 outer wall.Adopt spiral fluted structure, be conducive to reducing inside exhaust pipe 2' to the impact of anchor rod body 1 intensity.
In the scheme of further optimization, the inner of anchor rod body 1 is protruding, and the opening of inside exhaust pipe 2' is lower than the top of projection.Structure thus, is convenient to exhaust, avoids the inside exhaust pipe 2' opening blocking being positioned at bolthole 6.The inner in this example refers to the one end being positioned at bolthole 6, and outer end then refers to the one end be positioned at outside bolthole 6.
Embodiment: 4:
As in Fig. 1 ~ 5, a kind of grouting method adopting the full bonding anchor rod with cement mortar of above-described embodiment 1 ~ 3, comprises the following steps:
One, boring forms bolthole 6, and is up to the standards;
Two, as the structure of embodiment 1 ~ 3, processing, making anchor pole;
Three, anchor rod body 1 is inserted bolthole 6, grout pipe 4 is set at the mouth of pipe, and be fixed on bolthole 6 orifice position by Anchor Agent or cement mortar, form aperture blocking 5; Grout pipe 4 in this example is long 25 ~ 30cm, the pvc pipe Anchor Agent of external diameter about 30mm identical with Grouting Pipe internal diameter or cement mortar are fixed on orifice position, and forms aperture and block 5 port closing is firm.
Four, in the scheme optimized, after the blocking of anchor pole aperture has some strength, carry out slip casting from grout pipe 4 pairs of boltholes 6, the air in slip casting process is discharged from stack; Until when stack is not vented or overflows thin pulp, show to fill mortar in bolthole.
The slip casting of full bonding anchor rod with cement mortar is realized by above step.
In the scheme optimized, after aperture blocking 5 firmly, pass into air from grout pipe 4, whether test stack is unobstructed.
The above embodiments are only the preferred technical solution of the present invention; and should not be considered as restriction of the present invention; the technical scheme that protection scope of the present invention should be recorded with claim, the equivalents comprising technical characteristic in the technical scheme of claim record is protection domain.Namely the equivalent replacement within the scope of this improves, also within protection scope of the present invention.
Claims (9)
1. bond an anchor rod with cement mortar entirely, comprises anchor rod body (1), it is characterized in that: anchor rod body (1) is provided with stack.
2. one according to claim 1 bonds anchor rod with cement mortar entirely, it is characterized in that: described stack is outer stack (2), and outer stack (2) is fixed on the outer wall of anchor rod body (1) by fixing card (3).
3. one according to claim 2 bonds anchor rod with cement mortar entirely, it is characterized in that: the termination, outer end of outer stack (2) exceeds the termination, outer end of anchor rod body (1).
4. one according to claim 1 bonds anchor rod with cement mortar entirely, it is characterized in that: described stack be inside exhaust pipe (2').
5. one according to claim 4 bonds anchor rod with cement mortar entirely, it is characterized in that: (2') described inside exhaust pipe for being positioned at the groove of anchor rod body (1) outer wall, is formed after closure tip.
6. one according to claim 5 bonds anchor rod with cement mortar entirely, it is characterized in that: described groove is the helicla flute around anchor rod body (1) outer wall.
7. one according to claim 4 bonds anchor rod with cement mortar entirely, it is characterized in that: the inner of anchor rod body (1) is protruding, and inside exhaust pipe opening is (2') lower than the top of projection.
8. adopt a grouting method for the full bonding anchor rod with cement mortar described in any one of claim 1 ~ 7, it is characterized in that comprising the following steps:
One, anchor rod body (1) is inserted bolthole (6), grout pipe (4) is set at the mouth of pipe, and is fixed on bolthole (6) orifice position by Anchor Agent or cement mortar, form aperture blocking (5);
Two, after the blocking of anchor pole aperture has some strength, carry out slip casting from grout pipe (4) to bolthole (6), the air in slip casting process is discharged from stack;
The slip casting of full bonding anchor rod with cement mortar is realized by above step.
9. one according to claim 8 bonds anchor rod with cement mortar entirely, it is characterized in that: aperture blocking (5) firmly after, pass into air from grout pipe (4), whether test stack unobstructed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510251177.3A CN104846823B (en) | 2015-05-18 | 2015-05-18 | It is complete to bond anchor rod with cement mortar and grouting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510251177.3A CN104846823B (en) | 2015-05-18 | 2015-05-18 | It is complete to bond anchor rod with cement mortar and grouting method |
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| CN104846823A true CN104846823A (en) | 2015-08-19 |
| CN104846823B CN104846823B (en) | 2017-11-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114561944A (en) * | 2022-03-19 | 2022-05-31 | 中电建十一局工程有限公司 | Construction method of elevation angle mortar anchor rod |
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| CN1363759A (en) * | 2001-01-02 | 2002-08-14 | 汪德洪 | Combined first-anchoring-after-grouting anchor rod |
| KR100406813B1 (en) * | 2001-04-02 | 2003-11-21 | 주식회사 동아특수건설 | Method and apparatus for mounting lock bolt and lock anchor |
| CN1737270A (en) * | 2005-07-08 | 2006-02-22 | 吴德兴 | Shell expand anchorage head and anchor bar |
| CN2934358Y (en) * | 2006-07-24 | 2007-08-15 | 吴德兴 | Anticorrosion anchor rod with utricle |
| CN201162216Y (en) * | 2008-03-10 | 2008-12-10 | 成都现代万通锚固技术有限公司 | Anti-back overflow combination type anchor bar |
| CN102146673A (en) * | 2011-02-27 | 2011-08-10 | 山东科技大学 | Anchoring structure for liquid-injection corrosion-resistant anchor rod or anchor cable and construction method thereof |
| CN202416313U (en) * | 2011-12-21 | 2012-09-05 | 中铁第四勘察设计院集团有限公司 | Anchor rod with expanded ends |
| CN202628130U (en) * | 2011-12-30 | 2012-12-26 | 洛阳工岩科技有限公司 | Self-propelled type anchor drill rod |
| CN104047625A (en) * | 2013-10-11 | 2014-09-17 | 江苏鼎泰工程材料有限公司 | Reinforcement anchor rod and rock mass reinforcement method applying anchor rod |
| CN204626400U (en) * | 2015-05-18 | 2015-09-09 | 葛洲坝集团第一工程有限公司 | Full bonding anchor rod with cement mortar |
-
2015
- 2015-05-18 CN CN201510251177.3A patent/CN104846823B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1363759A (en) * | 2001-01-02 | 2002-08-14 | 汪德洪 | Combined first-anchoring-after-grouting anchor rod |
| KR100406813B1 (en) * | 2001-04-02 | 2003-11-21 | 주식회사 동아특수건설 | Method and apparatus for mounting lock bolt and lock anchor |
| CN1737270A (en) * | 2005-07-08 | 2006-02-22 | 吴德兴 | Shell expand anchorage head and anchor bar |
| CN2934358Y (en) * | 2006-07-24 | 2007-08-15 | 吴德兴 | Anticorrosion anchor rod with utricle |
| CN201162216Y (en) * | 2008-03-10 | 2008-12-10 | 成都现代万通锚固技术有限公司 | Anti-back overflow combination type anchor bar |
| CN102146673A (en) * | 2011-02-27 | 2011-08-10 | 山东科技大学 | Anchoring structure for liquid-injection corrosion-resistant anchor rod or anchor cable and construction method thereof |
| CN202416313U (en) * | 2011-12-21 | 2012-09-05 | 中铁第四勘察设计院集团有限公司 | Anchor rod with expanded ends |
| CN202628130U (en) * | 2011-12-30 | 2012-12-26 | 洛阳工岩科技有限公司 | Self-propelled type anchor drill rod |
| CN104047625A (en) * | 2013-10-11 | 2014-09-17 | 江苏鼎泰工程材料有限公司 | Reinforcement anchor rod and rock mass reinforcement method applying anchor rod |
| CN204626400U (en) * | 2015-05-18 | 2015-09-09 | 葛洲坝集团第一工程有限公司 | Full bonding anchor rod with cement mortar |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114561944A (en) * | 2022-03-19 | 2022-05-31 | 中电建十一局工程有限公司 | Construction method of elevation angle mortar anchor rod |
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| CN104846823B (en) | 2017-11-14 |
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