CN104846823B - It is complete to bond anchor rod with cement mortar and grouting method - Google Patents
It is complete to bond anchor rod with cement mortar and grouting method Download PDFInfo
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- CN104846823B CN104846823B CN201510251177.3A CN201510251177A CN104846823B CN 104846823 B CN104846823 B CN 104846823B CN 201510251177 A CN201510251177 A CN 201510251177A CN 104846823 B CN104846823 B CN 104846823B
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- anchor rod
- cement mortar
- rod body
- bolthole
- slip casting
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Abstract
A kind of full bonding anchor rod with cement mortar provided by the invention, including anchor rod body, anchor rod body are provided with blast pipe.A kind of grouting method using above-mentioned full bonding anchor rod with cement mortar, comprise the following steps：Anchor rod body is inserted into bolthole, grout pipe is set in the mouth of pipe, and bolthole orifice position is fixed on Anchor Agent or cement mortar, aperture is formed and blocks；After blocking and there is some strength after anchor pole aperture, slip casting is carried out to bolthole from grout pipe, the air during slip casting is discharged from blast pipe；Full bonding anchor rod with cement mortar slip casting is realized by above step.The present invention can carry out mortar depositing construction again after anchor rod body is inserted into bolthole, eliminate the problem of first slip casting method is limited by cement mortar setting time.It can be concentrated once or slip casting in batches after inserted link is completed on a large scale using the present invention, simplify technique, increase substantially rockbolt installation speed, reduce labor intensity, improved work efficiency, saved construction cost.
Description
Technical field
It is particularly complete to bond cement mortar the present invention relates to architectural engineering rock reinforcement and underground chamber mortar depositing construction field
Anchor pole and grouting method.
Background technology
At present, it is the method that anchor pole is inserted after first slip casting to bond anchor rod with cement mortar entirely and install widely used.This method
Be in the bolthole being drilled, Grouting Pipe be inserted to bolthole bottom, using slip casting machine by cement mortar hand-hole bottom, Grouting Pipe with
The injection of mortar, slowly extracts bolthole, after Grouting Pipe is all extracted, anchor rod body is rapidly inserted into, then with timber wedge etc.
Aperture is blocked, prevents mortar to be lost in.
Using after first slip casting insert anchor pole method, on the one hand because the cement mortar first irrigated has the limitation of setting time,
So the cement mortar of mixing can not be too many every time, and with mixing with the anchor pole hole number irrigated every time can not be too many, typically
The mortar quantity of mixing should not be more than 3 holes, in case overlong time, makes mortar be condensed in grouting equipment or hole, causes
Rockbolt installation speed is slow, labor intensity is high, work efficiency is low；On the other hand because cement mortar has certain mobility, first boring
Cement injection mortar, especially elevation angle bolthole and underground cavern crown are constructed bolthole towards day in good bolthole, mortar
It can be flowed out under its Gravitative Loads, so in perfusion mortar and insertion anchor pole, mortar wastes seriously, and anchor pole quality can not obtain
Ensure；In addition, the method for anchor pole is inserted after first slip casting, due in insertion anchor pole, particularly artificial construction, being irrigated in advance
The resistance of mortar, muscle power expend big, labor intensity height, and cost is high and certain potential safety hazard be present.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of full bonding anchor rod with cement mortar and grouting method, Neng Gouti
High rockbolt installation speed, labor intensity is reduced, reduce the waste of Anchor Agent or cement mortar, it is ensured that anchor bolt construction quality, reduced
Construction cost.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of full bonding anchor rod with cement mortar, bag
Anchor rod body is included, anchor rod body is provided with blast pipe.
In optional scheme, described blast pipe is outer blast pipe, and outer blast pipe is fixed on anchor rod body by fixing card
Outer wall.
In the scheme further optimized, the outer end termination of outer blast pipe exceeds the outer end termination of anchor rod body.
In another optional scheme, described blast pipe is inside exhaust pipe.In the scheme further optimized, described is interior
Blast pipe is multiple grooves positioned at anchor rod body outer wall, and the depth of groove is more than the width of groove, through the table to anchor rod body
Face sensing heating is formed to being extruded after 700-1200 DEG C behind the top of closed pockets.
In the scheme further optimized, described groove is the helicla flute for being wound on anchor rod body outer wall.
In the scheme further optimized, the inner of anchor rod body is raised, and the opening of inside exhaust pipe is less than raised top.
A kind of grouting method using above-mentioned full bonding anchor rod with cement mortar, comprise the following steps：
First, anchor rod body is inserted into bolthole, grout pipe is set in aperture, and anchor is fixed on Anchor Agent or cement mortar
Rod aperture orifice position, form aperture and block；
2nd, after blocking and there is some strength after anchor pole aperture, slip casting is carried out to bolthole from grout pipe, during slip casting
Air is discharged from blast pipe；
Full bonding anchor rod with cement mortar slip casting is realized by above step.
In the scheme of optimization, after aperture blocks firmly, air is passed through from grout pipe, whether test blast pipe is unobstructed.
A kind of full bonding anchor rod with cement mortar and grouting method provided by the invention, can insert anchor pole by anchor rod body
Kong Houzai carries out mortar depositing construction, eliminates the problem of first slip casting method is limited by cement mortar setting time.Can using the present invention
After inserted link is completed on a large scale, concentrate once or slip casting in batches, simplify technique, increase substantially rockbolt installation speed, reduce
Labor intensity, improve work efficiency；Spillage, running pulp, more slip casting phenomenons are prevented, Anchor Agent or cement mortar will not be wasted, saved
Construction cost；There is no Anchor Agent or the resistance of cement mortar when inserting anchor pole, manpower can be completed, it is not necessary to which equipment aids in, and applies
Work is convenient and safe.Mortar injection can adjust grouting pressure, slip casting plumpness is reliable, and anchor pole quality is easy under slip casting machine effect
In guarantee.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
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 structure diagram of another optional anchor pole in the present invention.
Fig. 5 is the cross-sectional structure schematic diagram of anchor pole further preferred in the present invention.
In figure：Anchor rod body 1, outer blast pipe 2, inside exhaust pipe 2', fixing card 3, grout pipe 4, aperture block 5, bolthole
6。
Embodiment
Embodiment 1：
In Fig. 1,4, a kind of full bonding anchor rod with cement mortar, including anchor rod body 1, anchor rod body 1 are provided with blast pipe.
Thus structure, it is easy to after anchor rod body 1 is inserted into bolthole 6, in filling process, the gas in bolthole 6 is discharged,
In order to realize the construction for first inserting anchor pole grouting behind shaft or drift lining.
Embodiment 2：
On the basis of embodiment 1, in optional scheme, described blast pipe is outer blast pipe 2, and outer blast pipe 2 passes through
Fixing card 3 is fixed on the outer wall of anchor rod body 1.In this example, outer blast pipe 2 using 4~5mm of internal diameter, 1~1.5mm of wall thickness it is soft
Plastic tube is made.Flexible plastic tube leaves the excess length not less than 50cm in the outer end of anchor rod body 1, flexible plastic tube fixation and
Smooth-going, no damaged and joint, and smooth gas discharge.
In the scheme such as Fig. 2 that further optimize, 3, the outer end termination of outer blast pipe 2 exceeds the outer end termination of anchor rod body 1,
The inner termination of outer blast pipe 2 is inner concordant with anchor rod body 1, it is preferred that the inner termination of outer blast pipe 2 is arranged to oblique
Face, in order to be vented.Thus structure, using outer blast pipe 2 as blast pipe during slip casting, it is easy to transform existing anchor rod body 1.
While installation rate is improved, cost is also reduced.
Embodiment 3：
On the basis of embodiment 1, in another optional scheme such as Fig. 3 ~ 5, described blast pipe is inside exhaust pipe 2'.By
This structure is more compact, compared with Example 2, also avoids outer blast pipe 2 from influenceing adhesive stress.
In the scheme further optimized, described inside exhaust pipe 2' is the groove positioned at the outer wall of anchor rod body 1, is pushed up through closing
Formed behind portion.First in a manner of cold pressing or hot pressing, groove is extruded on anchor rod body 1, the depth of groove is more than the width of groove, then
Extruded after being heated to 700-1200 DEG C to the surface induction of anchor pole, make the top seal of groove, form inside exhaust pipe 2', it is horizontal
Section is as shown in Fig. 3,5, and using more grooves, then the diameter of each groove can be done smaller, even if partial groove
That is inside exhaust pipe 2' is blocked and does not also interfere with whole mortar depositing construction.Thus structure, more compact, construction is also more quick.
In the scheme such as Fig. 4 that further optimize, described groove is the helicla flute for being wound on the outer wall of anchor rod body 1.Using spiral shell
The structure of spin slot, advantageously reduce influences of the inside exhaust pipe 2' to the intensity of anchor rod body 1.
In the scheme further optimized, the inner of anchor rod body 1 is raised, and inside exhaust pipe 2' opening is less than raised top
End.Thus structure, it is easy to be vented, avoids the inside exhaust pipe 2' openings in bolthole 6 from blocking.The inner in this example refers to position
One end in bolthole 6, outer end then refer to be located at one end outside bolthole 6.
Embodiment:4：
In Fig. 1 ~ 5, a kind of full grouting method for bonding anchor rod with cement mortar using above-described embodiment 1 ~ 3, including with
Lower step：
First, drilling form bolthole 6, and examine it is qualified；
2nd, such as structure of embodiment 1 ~ 3, processing, anchor pole is made；
3rd, anchor rod body 1 is inserted into bolthole 6, grout pipe 4 is set in aperture, and fixed with Anchor Agent or cement mortar
In the orifice position of bolthole 6, form aperture and block 5；Grout pipe 4 in this example is long 25~30cm, external diameter and slip casting bore
Identical about 30mm pvc pipe is fixed on orifice position with Anchor Agent or cement mortar, and forms aperture and block 5 by port closing jail
Gu.
4th, in the scheme of optimization, after blocking and there is some strength after anchor pole aperture, bolthole 6 is noted from grout pipe 4
Slurry, the air during slip casting are discharged from blast pipe；When blast pipe is not vented or overflows thin pulp, show to have noted in bolthole
Sand filling is starched.
Full bonding anchor rod with cement mortar slip casting is realized by above step.
In the scheme of optimization, after aperture blocks 5 firmly, air is passed through from grout pipe 4, whether test blast pipe is unobstructed.
The above embodiments are only the preferred technical solution of the present invention, and are not construed as the limitation for the present invention, this hair
Technical characteristic in the technical scheme that bright protection domain should be recorded with claim, including the technical scheme of claim record
Equivalents are protection domain.Equivalent substitution i.e. within this range is improved, also within protection scope of the present invention.
Claims (4)
1. a kind of full bonding anchor rod with cement mortar, including anchor rod body（1）, it is characterized in that：Anchor rod body（1）It is provided with exhaust
Pipe；
Described blast pipe is inside exhaust pipe（2'）；
Described inside exhaust pipe（2'）For positioned at anchor rod body（1）Multiple grooves of outer wall, the depth of groove are more than the width of groove
Degree, through to anchor rod body（1）Surface induction be heated to 700-1200 DEG C after extruded, formed behind the top of closed pockets.
2. a kind of full bonding anchor rod with cement mortar according to claim 1, it is characterized in that：Described groove is to be wound on anchor pole
The body of rod（1）The helicla flute of outer wall.
3. one kind is using the full grouting method for bonding anchor rod with cement mortar described in any one of claim 1 ~ 2, it is characterized in that bag
Include following steps：
First, by anchor rod body（1）Insert bolthole（6）, in aperture, grout pipe is set（4）, and it is fixed on bolthole with Anchor Agent
（6）Orifice position, form aperture and block（5）；
2nd, after blocking and there is some strength after anchor pole aperture, from grout pipe（4）To bolthole（6）Slip casting is carried out, during slip casting
Air from blast pipe discharge；
Full bonding anchor rod with cement mortar slip casting is realized by above step.
4. a kind of grouting method according to claim 3, it is characterized in that：Aperture blocks（5）After firmly, from grout pipe（4）
Air is passed through, whether test blast pipe is 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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
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| CN104846823A CN104846823A (en) | 2015-08-19 |
| CN104846823B true CN104846823B (en) | 2017-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510251177.3A Active 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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Families Citing this family (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 |
Citations (3)
| 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 |
| 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 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100406813B1 (en) * | 2001-04-02 | 2003-11-21 | 주식회사 동아특수건설 | Method and apparatus for mounting lock bolt and lock anchor |
| CN100370081C (en) * | 2005-07-08 | 2008-02-20 | 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 |
| 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 (3)
| 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 |
| 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 |
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| CN104846823A (en) | 2015-08-19 |
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Address after: 443002 Dongshan Avenue, Hubei, Yichang, No. 54 Applicant after: CHINA GEZHOUBA GROUP NO.1 ENGINEERING CO., LTD. Address before: 443002 Dongshan Avenue, Hubei, Yichang, No. 54 Applicant before: Gezhouba Group No.1 Engineering Co., Ltd. |
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