CN105484782A - Anchor rod for achieving high-prestress total-length anchoring through double-fluid grouting cartridges and use method of anchor rod - Google Patents
Anchor rod for achieving high-prestress total-length anchoring through double-fluid grouting cartridges and use method of anchor rod Download PDFInfo
- Publication number
- CN105484782A CN105484782A CN201610015031.3A CN201610015031A CN105484782A CN 105484782 A CN105484782 A CN 105484782A CN 201610015031 A CN201610015031 A CN 201610015031A CN 105484782 A CN105484782 A CN 105484782A
- Authority
- CN
- China
- Prior art keywords
- powder stick
- slip casting
- casting powder
- grouting
- rod
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000004873 anchoring Methods 0.000 title claims abstract description 11
- 239000012530 fluid Substances 0.000 title claims abstract description 11
- 230000008093 supporting effect Effects 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 17
- 229920005989 resin Polymers 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims description 70
- 238000007569 slipcasting Methods 0.000 claims description 62
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 239000002360 explosive Substances 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- 238000013019 agitation Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 11
- 238000010276 construction Methods 0.000 abstract description 7
- 230000000903 blocking effect Effects 0.000 abstract 3
- 239000003245 coal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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 OR ROCK 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 OR ROCK 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 OR ROCK 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention provides an anchor rod for achieving high-prestress total-length anchoring through double-fluid grouting cartridges and a use method of the anchor rod. The grouting cartridge A and the grouting cartridge B are both in a hollow barrel shape and penetrate through the middle of a rod body. The end, close to the grouting cartridge B, of the rod body smashes a resin cartridge at the bottom of a drill hole for end anchoring, the end, away from the grouting cartridge A, of the grouting cartridge B is provided with a fixed blocking piece, the end, away from the grouting cartridge B, of the grouting cartridge A is provided with a movable blocking piece, the end, close to the grouting cartridge A, of the rod body is provided with a nut, a supporting plate is arranged on the side face of the nut, a rubber tapered wedge is arranged on the portion, close to the supporting plate, of the rod body, and through fine rebars are arranged on the supporting plate and connected to the movable blocking piece in a pushed and pressed mode. High-prestress total-length anchoring is achieved through the double-fluid grouting cartridges, the use method is simple, cost is low, the workload is low, and the change of the construction technology is small.
Description
Technical field
The present invention relates to mine roadway support technical field, particularly relate to and utilize two fluid grouting powder stick to realize high pre-stress full length fastening anchor field.
Background technology
Colliery tunnel support technology is the key technology in coal mining.Keep adjoining rock stability, controlling roadway deformation and destroying is the necessary condition realizing mine safety, High-efficient Production.Along with mine develops both in depth and in breadth, roadway support issues shows more and more outstanding.BOLTING TECHNOLOGY TO COAL ROADWAY development in recent years rapidly, has become the supporting technology that mine realizes high-yield and high-efficiency indispensability.
The current anchorage style of bolt support has the anchorage styles such as end anchor, the extensible bolting and full length fastening, and in order to improve supporting effect, reduce the tunnel absciss layer at initial stage, distortion, great majority end anchor and the extensible bolting anchor pole all apply pretightning force.Bolt, due to complicated construction technique, applies pretightning force difficulty large, does not generally add pretightning force, can not realize full-length prestress anchoring.
The prestressing force full length fastening of current common bolt generally adopts two kinds of forms.One adopts fast slow hardening resin explosive roll to realize, but in actual applications, when aperture than time constant due to the spherical conglomeration of easy formation under anchor pole pushing tow rotates of powder stick skin, direct obstruction anchor pole advances, cause rockbolt installation not in place, therefore often adopt increase bore diameter mode to solve, but there is again the problems such as aperture is mated than not, and bond effect is undesirable.Another is that anchor pole uses resin explosive roll to fix, and non-strength of holing knot section adopts large drill sleeve hole, and along anchor rod body arranging exhaust air pipe, rockbolt installation grouting plug, after rockbolt installation completes, slip casting completes prestressing force full length fastening.
Large based on current prestressing force full length fastening technology difficulty of construction, the problems such as construction technology is complicated, the invention provides provides that a kind of method is simple, cost is low, workload is little and construction technology changes little prestressing force Bolt and supporting method.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency of the prior art, provide a kind of utilize two fluid grouting powder stick to realize high pre-stress full length fastening anchor pole and using method, the following technical scheme of concrete employing: a kind of anchor pole realizing high pre-stress full length fastening, it comprises 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 fixing catch, it is characterized 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, end anchorage is carried out with the resin explosive roll smashing up foot of hole in one end of the close described slip casting powder stick B of the described body of rod, one end away from described slip casting powder stick A of described slip casting powder stick B is provided with fixing catch, one end away from described slip casting powder stick B of described slip casting powder stick A is provided with active blade, one end of the close described slip casting powder stick A of the described body of rod is provided with nut, described nut side is provided with supporting plate, rubber slanting wedge is provided with on the body of rod of described supporting plate, described supporting plate is provided with the fine steel rib run through, described fine steel rib pushing is connected on described active blade.
Further, as preferably, the structure of described fine steel rib must guarantee pushes on movable catch thus crush slip casting powder stick A and B, until active blade to be pushed into fixing catch place.
Further, as preferably, the diameter of the described body of rod is less than the diameter of described boring.
Further, as preferably, the diameter 30mm of described boring, hole depth is 1700mm.
Further, as preferably, the termination of described fine steel rib is provided with primary nut, described primary nut is provided with grouting elastic tape.
In addition, present invention also offers the using method that a kind of anchor pole realizing high pre-stress full length fastening carries out anchoring, it is characterized in that, it comprises the following steps:
A. utilize jumbolter to hole, after boring, hole is clearly carried out to it;
B. resin explosive roll is mounted to foot of hole;
C. insert and be equipped with the anchor rod body of hollow tubular slip casting powder stick A and slip casting powder stick B, and smash up resin explosive roll and carry out end anchorage, and apply comparatively high pretightening force;
D. promote fine steel rib make its pushes on movable catch thus crush slip casting powder stick A and slip casting powder stick B, until active blade to be pushed into fixing catch place, and play the effect to slurry agitation in slip casting powder stick A and slip casting powder stick B, make its quick solidification;
E. screw the primary nut of fine steel rib end with grouting elastic tape, and complete the installation of anchor pole.
Further, as preferably, in described step (a), the diameter of described boring is 30mm, and hole depth is 1700mm.
Beneficial effect of the present invention is:
The present invention utilizes two fluid grouting powder stick to achieve high pre-stress full length fastening, and it uses, and method is simple, cost is low, workload is little and construction technology change is little.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of anchor pole before anchoring realizing high pre-stress full length fastening of the present invention;
Fig. 2 is a kind of structural representation of anchor pole after smashing up resin explosive roll realizing high pre-stress full length fastening of the present invention;
Fig. 3 is a kind of structural representation of anchor pole after anchoring completes realizing high pre-stress full length fastening of the present invention;
Fig. 4 is a kind of structure for amplifying schematic diagram realizing the end of the anchor pole of high pre-stress full length fastening of the present invention; .
Wherein, 1-supporting plate 2-rubber slanting wedge 3-slip casting powder stick A4-slip casting powder stick B5-body of rod 6-boring 7-resin explosive roll 8-fine steel rib 9-nut 10-active blade 11-fixes catch 12-mixing rear slurry.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As Figure 1-4, the invention provides a kind of anchor pole realizing high pre-stress full length fastening, it comprises the body of rod 5, supporting 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 fixing catch 11, it is characterized in that, described slip casting powder stick A3, slip casting powder stick B4 is hollow tubular, described slip casting powder stick A3 and slip casting powder stick B4 is located in the middle part of the body of rod 5, end anchorage is carried out with the resin explosive roll 7 smashed up bottom boring 6 in one end of the close described slip casting powder stick B4 of the described body of rod 5, one end away from described slip casting powder stick A3 of described slip casting powder stick B7 is provided with fixing catch 11, one end away from described slip casting powder stick B4 of described slip casting powder stick A3 is provided with active blade 10, one end of the close described slip casting powder stick A of the described body of rod 5 is provided with nut 9, described nut 9 side is provided with supporting plate 1, rubber slanting wedge 2 is provided with on the body of rod 5 of described supporting plate 1, described supporting plate 1 is provided with the fine steel rib 8 run through, described fine steel rib 8 pushing is connected on described active blade 10.
In the present embodiment, the structure of described fine steel rib 8 must guarantee pushes on movable catch 10 thus crush slip casting powder stick A and slip casting powder stick B, until active blade 10 to be pushed into fixing catch 11 place.The diameter of the described body of rod is less than the diameter of described boring.The diameter 30mm of described boring, hole depth is 1700mm.
In addition, the termination of described fine steel rib 8 is provided with primary nut, described primary nut is provided with grouting elastic tape.
In addition, present invention also offers the using method that a kind of anchor pole realizing high pre-stress full length fastening carries out anchoring, it is characterized in that, it comprises the following steps:
A. utilize jumbolter to carry out boring 6, after boring, hole is clearly carried out to it;
B. resin explosive roll 7 is mounted to bottom boring 6;
C. insert and be equipped with the anchor rod body 5 of hollow tubular slip casting powder stick A3 and slip casting powder stick B4, and smash up resin explosive roll 7 and carry out end anchorage, and apply comparatively high pretightening force;
D. promote fine steel rib 8 make its pushes on movable catch thus crush slip casting powder stick A3 and slip casting powder stick B4, until active blade 10 to be pushed into fixing catch 11 place, and play the effect to slurry agitation in slip casting powder stick A3 and slip casting powder stick B4, make its quick solidification;
E. screw the primary nut of fine steel rib 8 end with grouting elastic tape, and complete the installation of anchor pole.
Further, as preferably, in described step (a), the diameter of described boring is 30mm, and hole depth is 1700mm.
The present invention utilizes two fluid grouting powder stick to achieve high pre-stress full length fastening, and it uses, and method is simple, cost is low, workload is little and construction technology change is little.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalents thereof.
Claims (7)
1. one kind realizes the anchor pole of high pre-stress full length fastening, it comprises 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 fixing catch, it is characterized 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, end anchorage is carried out with the resin explosive roll smashing up foot of hole in one end of the close described slip casting powder stick B of the described body of rod, one end away from described slip casting powder stick A of described slip casting powder stick B is provided with fixing catch, one end away from described slip casting powder stick B of described slip casting powder stick A is provided with active blade, one end of the close described slip casting powder stick A of the described body of rod is provided with nut, described nut side is provided with supporting plate, rubber slanting wedge is provided with on the body of rod of described supporting plate, described supporting plate is provided with the fine steel rib run through, described fine steel rib pushing is connected on described active blade.
2. a kind of anchor pole realizing high pre-stress full length fastening according to claim 1, it is characterized in that, the structure of described fine steel rib must guarantee pushes on movable catch thus crush slip casting powder stick A and slip casting powder stick B, until active blade to be pushed into fixing catch place.
3. according to claim 1 a kind of utilize two fluid grouting powder stick to realize high pre-stress full length fastening anchor pole and using method, it is characterized in that, the diameter of the described body of rod is less than the diameter of described boring.
4. according to claim 1 a kind of utilize two fluid grouting powder stick to realize high pre-stress full length fastening anchor pole and using method, it is characterized in that, the diameter 30mm of described boring, hole depth is 1700mm.
5. according to claim 1 a kind of utilize two fluid grouting powder stick to realize high pre-stress full length fastening anchor pole and using method, it is characterized in that, the termination of described fine steel rib is provided with primary nut, described primary nut is provided with grouting elastic tape.
6. utilize a kind of anchor pole realizing high pre-stress full length fastening described in claim 1-5 any one to carry out the using method of anchoring, it is characterized in that, it comprises the following steps:
A. utilize jumbolter to hole, after boring, hole is clearly carried out to it;
B. resin explosive roll is mounted to foot of hole;
C. insert and be equipped with the anchor rod body of hollow tubular slip casting powder stick A and slip casting powder stick B, and smash up resin explosive roll and carry out end anchorage, and apply comparatively high pretightening force;
D. promote fine steel rib make its pushes on movable catch thus crush slip casting powder stick A and slip casting powder stick B, until active blade to be pushed into fixing catch place, and play the effect to slurry agitation in slip casting powder stick A and slip casting powder stick B, make its quick solidification;
E. screw the primary nut of fine steel rib end with grouting elastic tape, and complete the installation of anchor pole.
7. a kind of anchor pole realizing high pre-stress full length fastening according to claim 6 carries out the using method of anchoring, it is characterized in that, in described step (a), the diameter of described boring is 30mm, and hole depth is 1700mm.
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 true CN105484782A (en) | 2016-04-13 |
| CN105484782B CN105484782B (en) | 2018-01-30 |
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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 |
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| CN (1) | CN105484782B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640160A (en) * | 2016-10-24 | 2017-05-10 | 河南理工大学 | Left-handed longitudinal-bar-free full-length high-prestress anchor rod and construction technique thereof |
| CN112095664A (en) * | 2020-09-18 | 2020-12-18 | 中铁隧道集团一处有限公司 | Prestressed full-length anchoring mortar anchor rod for underground cave depot and rapid anchoring tensioning method |
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 | Easy-to-recover quick-setting cement anchor rod |
| CN2208617Y (en) * | 1994-05-25 | 1995-09-27 | 中国矿业大学 | Double-end anchoring 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 | Easy-to-recover quick-setting cement anchor rod |
| CN2208617Y (en) * | 1994-05-25 | 1995-09-27 | 中国矿业大学 | Double-end anchoring 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640160A (en) * | 2016-10-24 | 2017-05-10 | 河南理工大学 | Left-handed longitudinal-bar-free full-length high-prestress anchor rod and construction technique thereof |
| 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 |
| CN112095664A (en) * | 2020-09-18 | 2020-12-18 | 中铁隧道集团一处有限公司 | Prestressed full-length anchoring mortar anchor rod for underground cave depot and rapid anchoring tensioning method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105484782B (en) | 2018-01-30 |
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