CN105484782B - A kind of anchor pole and its application method for realizing high pre-stress full length fastening - Google Patents
A kind of anchor pole and its application method for realizing high pre-stress full length fastening Download PDFInfo
- Publication number
- CN105484782B CN105484782B CN201610015031.3A CN201610015031A CN105484782B CN 105484782 B CN105484782 B CN 105484782B CN 201610015031 A CN201610015031 A CN 201610015031A CN 105484782 B CN105484782 B CN 105484782B
- Authority
- CN
- China
- Prior art keywords
- powder stick
- slip casting
- casting powder
- rod
- fine steel
- 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 - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 78
- 238000007569 slipcasting Methods 0.000 claims abstract description 70
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 239000011347 resin Substances 0.000 claims abstract description 17
- 229920005989 resin Polymers 0.000 claims abstract description 17
- 239000002360 explosive Substances 0.000 claims abstract description 16
- 238000005553 drilling Methods 0.000 claims description 15
- 239000002002 slurry Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 6
- 238000004873 anchoring Methods 0.000 claims description 4
- 229920002472 Starch Polymers 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 235000019698 starch Nutrition 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 11
- 238000010276 construction Methods 0.000 abstract description 7
- 239000012530 fluid Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
- E21D20/021—Grouting with inorganic components, e.g. cement
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
- E21D20/025—Grouting with organic components, e.g. resin
Abstract
The present invention provides a kind of anchor pole and its application method that high pre-stress full length fastening is realized using two fluid grouting powder stick,Slip casting powder stick A,Slip casting powder stick B is hollow tubular,Slip casting powder stick A and slip casting powder stick B is located in the middle part of the body of rod,The close slip casting powder stick B of body of rod one end carries out end anchorage to smash up the resin explosive roll of foot of hole,Slip casting powder stick B remote slip casting powder stick A one end is provided with fixed catch,Slip casting powder stick A remote slip casting powder stick B one end is provided with active blade,The close slip casting powder stick A of body of rod one end is provided with nut,Nut side is provided with supporting plate,Rubber slanting wedge is provided with the body of rod of supporting plate,The fine steel rib being provided through on supporting plate,Fine steel rib is pushed and is connected on active blade,The present invention realizes high pre-stress full length fastening using two fluid grouting powder stick,It is used,Method is simple,Cost is low,Workload is small and construction technology change is small.
Description
Technical field
Realize that high pre-stress is complete the present invention relates to mine roadway support technical field, more particularly to using two fluid grouting powder stick
Long anchoring anchor field.
Background technology
Colliery tunnel support technology is the key technology in coal mining.Adjoining rock stability is kept, roadway deformation is controlled and breaks
Bad is the necessary condition realized mine safety, efficiently produced.As mine develops both in depth and in breadth, roadway support issues performance
Obtain more and more prominent.BOLTING TECHNOLOGY TO COAL ROADWAY is quickly grown in recent years, it has also become mine realizes the supporting of high-yield and high-efficiency indispensability
Technology.
The current anchorage style of suspension roof support has the anchorage styles such as end anchor, the extensible bolting and full length fastening, in order to improve branch
Effect, the tunnel absciss layer for reducing initial stage, deformation are protected, most of end anchors and the extensible bolting anchor pole all apply pretightning force.Full length fastening
For anchor pole due to complicated construction technique, application pretightning force difficulty is big, is typically not added with pretightning force, it is impossible to realizes that full-length prestress anchors.
The prestressing force full length fastening of common bolt typically uses two kinds of forms at present.One kind is to use fast slow hardening resin explosive roll
To realize, but in actual applications, when aperture ratio is constant because powder stick skin easily forms spherical junctions under the rotation of anchor pole pushing tow
Group, directly hinder anchor pole to promote, cause rockbolt installation not in place, therefore often solved using increase bore diameter mode, still
Aperture ratio mismatch again be present, the problems such as bond effect is undesirable.Another is that anchor pole is fixed using resin explosive roll, and drilling is non-
Strength knot section uses big drill sleeve hole, along anchor rod body arranging exhaust air pipe, rockbolt installation grouting plug, and after the completion of rockbolt installation, slip casting
To complete prestressing force full length fastening.
It is big based on current prestressing force full length fastening technology difficulty of construction, the problems such as construction technology complexity, the invention provides
The prestressing force Bolt and supporting side that a kind of method is simple, cost is low, workload is small and construction technology change is small are provided
Method.
The content of the invention
The invention aims to overcome above-mentioned deficiency of the prior art, there is provided one kind utilizes two fluid grouting powder stick
The anchor pole and its application method of high pre-stress full length fastening are realized, is specifically adopted the following technical scheme that：One kind realizes high pre-stress
The anchor pole of full length fastening, it include the body of rod, supporting plate, rubber slanting wedge, slip casting powder stick A, slip casting powder stick B, resin explosive roll, fine steel rib,
Nut, active blade and fixed catch, it is characterised in that described slip casting powder stick A, slip casting powder stick B is hollow tubular, described
Slip casting powder stick A and slip casting powder stick B is located in the middle part of the body of rod, and the close slip casting powder stick B of body of rod one end is bored with smashing up
The resin explosive roll in bottom hole portion carries out end anchorage, and the remote slip casting powder stick A of slip casting powder stick B one end is provided with fixation
Catch, the remote slip casting powder stick B of slip casting powder stick A one end are provided with active blade, the body of rod close to described
Slip casting powder stick A one end is provided with nut, and the nut side is provided with supporting plate, and rubber is provided with the body of rod of the supporting plate
Glue wedge, the fine steel rib being provided through on the supporting plate, the fine steel rib are pushed and are connected on the active blade.
Further, preferably, the structure of the fine steel rib must assure that can pushes on movable catch so as to crushing slip casting
Powder stick A and B, until active blade is pushed into fix at catch.
Further, preferably, the diameter of the body of rod is less than the diameter of the drilling.
Further, preferably, a diameter of 30mm of the drilling, hole depth 1700mm.
Further, preferably, being provided with primary nut on the termination of the fine steel rib, it is provided with the primary nut and only starches
Elastic tape.
In addition, present invention also offers the application method that a kind of anchor pole for realizing high pre-stress full length fastening is anchored,
Characterized in that, it comprises the following steps：
A. drilled using jumbolter, borehole cleaning is carried out to it after drilling；
B. resin explosive roll is attached to foot of hole；
C. insertion is equipped with hollow tubular slip casting powder stick A and slip casting powder stick B anchor rod body, and smashes up resin explosive roll progress
End anchorage, and apply compared with high pretightening force；
D. fine steel rib is promoted to make its pushes on movable catch so as to crush slip casting powder stick A and slip casting powder stick B, until by active catch
Piece is pushed into fix at catch, and plays a part of stirring slurries in slip casting powder stick A and slip casting powder stick B, makes its quick solidification；
E. primary nut of the fine steel rib end with only slurry elastic tape is screwed, and completes the installation of anchor pole.
Further, preferably, in the step a, a diameter of 30mm of the drilling, hole depth 1700mm.
The beneficial effects of the present invention are：
The present invention realizes high pre-stress full length fastening using two fluid grouting powder stick, and it is used, and method is simple, cost
Low, workload is small and construction technology change is small.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the anchor pole for realizing high pre-stress full length fastening of the present invention before anchoring；
Fig. 2 is a kind of structural representation of the anchor pole for realizing high pre-stress full length fastening of the present invention after resin explosive roll is smashed up
Figure；
Fig. 3 is a kind of structural representation of the anchor pole for realizing high pre-stress full length fastening of the present invention after the completion of anchoring；
Fig. 4 is a kind of mplifying structure schematic diagram of the end for the anchor pole for realizing high pre-stress full length fastening of the present invention.
Wherein, 1- supporting plates 2- rubber slanting wedges 3- slip castings powder stick A 4- slip casting powder stick B 5- bodies of rod 6- drillings 7- resin medicines
Roll up 8- fine steel rib 9- nut 10- active blades 11- and fix catch 12- mixing rear slurries.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
As Figure 1-4, the invention provides a kind of anchor pole for realizing high pre-stress full length fastening, it includes the body of rod 5, support
Plate 1, rubber slanting wedge 2, slip casting powder stick A3, slip casting powder stick B4, resin explosive roll 7, fine steel rib 8, nut 9, active blade 10 and fixation
Catch 11, it is characterised in that described slip casting powder stick A3, slip casting powder stick B4 is hollow tubular, the slip casting powder stick A3 and note
Slurry powder stick B4 is located in the middle part of the body of rod 5, and close the slip casting powder stick B4 of the body of rod 5 one end is to smash up 6 bottoms that drill
Resin explosive roll 7 carries out end anchorage, and the remote slip casting powder stick A3 of slip casting powder stick B7 one end is provided with fixed catch
11, the slip casting powder stick the A3 remote slip casting powder stick B4 one end are provided with active blade 10, the close institute of the body of rod 5
The one end for stating slip casting powder stick A is provided with nut 9, and the side of nut 9 is provided with supporting plate 1, on the body of rod 5 of the supporting plate 1
Rubber slanting wedge 2, the fine steel rib 8 being provided through on the supporting plate 1 are provided with, the fine steel rib 8 pushes and is connected to the activity
On catch 10.
In the present embodiment, the structure of the fine steel rib 8 must assure that can pushes on movable catch 10 so as to crushing slip casting
Powder stick A and slip casting powder stick B, until active blade 10 is pushed into fix at catch 11.The diameter of the body of rod is less than the drilling
Diameter.The diameter 30mm of the drilling, hole depth 1700mm.
In addition, being provided with primary nut on the termination of the fine steel rib 8, it is provided with the primary nut and only starches elastic tape.
In addition, present invention also offers the application method that a kind of anchor pole for realizing high pre-stress full length fastening is anchored,
Characterized in that, it comprises the following steps：
A. drilling 6 is carried out using jumbolter, borehole cleaning is carried out to it after drilling；
B. resin explosive roll 7 is attached to 6 bottoms of drilling；
C insert the anchor rod body 5 for being equipped with hollow tubular slip casting powder stick A3 and slip casting powder stick B4, and smash up resin explosive roll
7 carry out end anchorage, and apply compared with high pretightening force；
D. fine steel rib 8 is promoted to make its pushes on movable catch so as to crush slip casting powder stick A3 and slip casting powder stick B4, until will be living
Dynamic catch 10 is pushed into fix at catch 11, and plays a part of stirring slurries in slip casting powder stick A3 and slip casting powder stick B4, makes it
Quick solidification；
E. primary nut of the end of fine steel rib 8 with only slurry elastic tape is screwed, and completes the installation of anchor pole.
Further, preferably, in the step a, a diameter of 30mm of the drilling, hole depth 1700mm.
The present invention realizes high pre-stress full length fastening using two fluid grouting powder stick, and it is used, and method is simple, cost
Low, workload is small and construction technology change is small.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (2)
1. a kind of anchor pole for realizing high pre-stress full length fastening, it includes the body of rod, supporting plate, rubber slanting wedge, slip casting powder stick A, slip casting
Powder stick B, resin explosive roll, fine steel rib, nut, active blade and fixed catch, it is characterised in that described slip casting powder stick A, slip casting
Powder stick B is hollow tubular, and slip casting powder stick A and slip casting the powder stick B is located in the middle part of the body of rod, the close note of the body of rod
Slurry powder stick B one end carries out end anchorage, the remote slip casting of the slip casting powder stick B to smash up the resin explosive roll of foot of hole
Powder stick A one end is provided with fixed catch, and the remote slip casting powder stick B of slip casting powder stick A one end is provided with active catch
Piece, the close slip casting powder stick A of body of rod one end are provided with nut, and the nut side is provided with supporting plate, close to institute
State and rubber slanting wedge is provided with the body of rod of supporting plate, the fine steel rib being provided through on the supporting plate, the fine steel rib pushes connection
On the active blade；The structure of the fine steel rib must assure that can pushes on movable catch so as to crush slip casting powder stick A and
Slip casting powder stick B, until active blade is pushed into fix at catch；The diameter of the body of rod is less than the diameter of the drilling；It is described
The a diameter of 30mm, hole depth 1700mm of drilling；Primary nut is provided with the termination of the fine steel rib, is set on the primary nut
Have and only starch elastic tape.
2. the application method anchored using a kind of anchor pole for realizing high pre-stress full length fastening described in claim 1, its
It is characterised by, it comprises the following steps：
A. drilled using jumbolter, borehole cleaning is carried out to it after drilling；
B. resin explosive roll is attached to foot of hole；
C. insertion is equipped with hollow tubular slip casting powder stick A and slip casting powder stick B anchor rod body, and smashes up resin explosive roll and carry out end
Anchoring, and apply compared with high pretightening force；
D. fine steel rib is promoted to make its pushes on movable catch so as to crush slip casting powder stick A and slip casting powder stick B, until active blade is pushed away
To fixed catch, and play a part of stirring slurries in slip casting powder stick A and slip casting powder stick B, make its quick solidification；
E. primary nut of the fine steel rib end with only slurry elastic tape is screwed, and completes the installation of anchor pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610015031.3A CN105484782B (en) | 2016-01-08 | 2016-01-08 | A kind of anchor pole and its application method for realizing high pre-stress full length fastening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610015031.3A CN105484782B (en) | 2016-01-08 | 2016-01-08 | A kind of anchor pole and its application method for realizing high pre-stress full length fastening |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105484782A CN105484782A (en) | 2016-04-13 |
| CN105484782B true CN105484782B (en) | 2018-01-30 |
Family
ID=55672027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610015031.3A Expired - Fee Related CN105484782B (en) | 2016-01-08 | 2016-01-08 | A kind of anchor pole and its application method for realizing high pre-stress full length fastening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105484782B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640160B (en) * | 2016-10-24 | 2019-03-29 | 河南理工大学 | A kind of left-handed nothing indulges muscle overall length high pre-stress anchor pole and its construction technology |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4764055A (en) * | 1986-10-02 | 1988-08-16 | Birmingham Bolt Company, Inc. | Resin reinforced expansion anchor system |
| CN2195569Y (en) * | 1994-05-20 | 1995-04-26 | 中国矿业大学 | Fast-setting cement anchoring pile easy to recovery |
| CN2208617Y (en) * | 1994-05-25 | 1995-09-27 | 中国矿业大学 | Double-end anchored type anchor rod |
| CN201650320U (en) * | 2010-03-27 | 2010-11-24 | 中国矿业大学 | Hollow rapid hardening resin capsule used for grouted anchor bar sealing |
| CN102644470A (en) * | 2012-04-18 | 2012-08-22 | 李治中 | General energy-saving quick anchoring method and general energy-saving quick anchor rod |
| CN203925545U (en) * | 2014-05-20 | 2014-11-05 | 霍州煤电集团技术研究院 | A kind of hollow powder stick for shutoff anchor pole bar tail hell |
| CN104278998A (en) * | 2014-09-22 | 2015-01-14 | 山东科技大学 | Double-end anchoring type anchor bolt for roadway surrounding rock |
| CN205370613U (en) * | 2016-01-08 | 2016-07-06 | 河南理工大学 | Utilize biliquid slip casting medicated roll to realize high prestressing force total length anchored stock |
-
2016
- 2016-01-08 CN CN201610015031.3A patent/CN105484782B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4764055A (en) * | 1986-10-02 | 1988-08-16 | Birmingham Bolt Company, Inc. | Resin reinforced expansion anchor system |
| CN2195569Y (en) * | 1994-05-20 | 1995-04-26 | 中国矿业大学 | Fast-setting cement anchoring pile easy to recovery |
| CN2208617Y (en) * | 1994-05-25 | 1995-09-27 | 中国矿业大学 | Double-end anchored type anchor rod |
| CN201650320U (en) * | 2010-03-27 | 2010-11-24 | 中国矿业大学 | Hollow rapid hardening resin capsule used for grouted anchor bar sealing |
| CN102644470A (en) * | 2012-04-18 | 2012-08-22 | 李治中 | General energy-saving quick anchoring method and general energy-saving quick anchor rod |
| CN203925545U (en) * | 2014-05-20 | 2014-11-05 | 霍州煤电集团技术研究院 | A kind of hollow powder stick for shutoff anchor pole bar tail hell |
| CN104278998A (en) * | 2014-09-22 | 2015-01-14 | 山东科技大学 | Double-end anchoring type anchor bolt for roadway surrounding rock |
| CN205370613U (en) * | 2016-01-08 | 2016-07-06 | 河南理工大学 | Utilize biliquid slip casting medicated roll to realize high prestressing force total length anchored stock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105484782A (en) | 2016-04-13 |
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