CN201180553Y - Slip casting anchor bar - Google Patents
Slip casting anchor bar Download PDFInfo
- Publication number
- CN201180553Y CN201180553Y CNU2008200332558U CN200820033255U CN201180553Y CN 201180553 Y CN201180553 Y CN 201180553Y CN U2008200332558 U CNU2008200332558 U CN U2008200332558U CN 200820033255 U CN200820033255 U CN 200820033255U CN 201180553 Y CN201180553 Y CN 201180553Y
- Authority
- CN
- China
- Prior art keywords
- rod
- grouting
- anchor bar
- steel wire
- grouted anchor
- 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
Abstract
The utility model relates to an anchor rod for grouting, which adopts round steel tube sections. The length of the rod body varies according to the grouting requirements, the outer end of the rod body is a threaded part, a nut taper matched with threads in diameter, a convex tray and a grout stopping plug orderly from the end head to the inside; and the inside end of the threaded part is provided with a baffle ring for preventing the grout stopping plug from sliding inward, round steel in the baffle ring is wound with a triangle steel wire in a spiral shape, grouting holes are orderly drilled on the rod body at a certain distance from the triangle steel wire at certain intervals, grouting holes of the same size are drilled on the opposite surface, and the number of the grout holes is adjusted according to the length of the rod body. The anchor rod for grouting has the advantages that the limit of grout diffusion, the mounting time for the anchor rod is shortened; the construction is convenient; the mounted triangle steel wire section and the conical grout stopping plug act, which improves the effect of blocking a hole mouth; the grouting pressure is guaranteed; and the anchor rod for grouting is more suitable for the application to enclosing rock and reinforcement of laneways of a mine.
Description
Affiliated technical field
The utility model relates to a kind of grouted anchor bar, in particular for reinforcing the high-pressure slip-casting anchor pole of country rock in the colliery tunnel support.
Background technology
At present, slurry injection technique is in coal mine support and other mines and the underground engineering construction process, solve rock crushing or fill the method that crack, rock mass deep realizes that the raising rock mass strength often adopts, slurry injection technique adopts grouted anchor bar with in the coal of bonding material by being pumped into, the rock mass, and select for use the pressure for slip casting, the range of scatter of bonding material of grouted anchor bar all have a direct impact.Grouted anchor bar commonly used in the colliery has the round steel section bar to make, and must adopt also during practical application that the method in special shutoff aperture such as cloth bag sealing of hole or fast setting cement seal etc., and port closing imprecision, and complicated operating process influence construction speed.In recent years, proposed the form of some new grouted anchor bars, (ZL200620082939.8) twines profile wire outside smooth bar as the high-pressure slip-casting anchor pole, screws in the coal and rock by rig, and whole anchor bar body twines profile wire realizes full length fastening.But in the practical application,, make the range of scatter of slurries be restricted, influence slip casting effect owing to twine stopping of profile wire; The coal petrography chip that the profile wire of anchor pole winding further peels off in drilling process hinders and creeps into simultaneously, influences rate of penetration, has prolonged the engineering time.
The utility model content
The purpose of this utility model is in order to overcome the deficiency in the prior art, and a kind of construction simple in structure, easy to operate, easy, grouted anchor bar that plugging effect is good are provided.
The technical scheme that the utility model adopted is: the grouted anchor bar body of rod is the round steel pipe section bar, and body of rod rear end is the long thread segment of 100-150mm, the nut that is provided with taper stop grouting plug, convex pallet on the thread segment successively and mates with the thread segment diameter; Taper stop grouting plug front end is provided with and stops its baffle ring that slides inwards, and the grouted anchor bar body of rod of baffle ring front end is provided with spirally-wound triangle steel wire, and the pitch of the triangle steel wire of winding is 25-40mm, and length is 250-300mm; Be drilled with a plurality of injected holes on the body of rod successively, the diameter of injected hole is 6-8mm, injected hole between the distance be 150-200mm, the distance between the length distance injected hole of the triangle steel wire of winding is 50-80mm; The diameter of the described grouted anchor bar body of rod is 18-20mm, and wall thickness is a 4mm seamless circular steel pipe section bar.
The beneficial effects of the utility model are:
(1) coiling length of minimizing triangle steel wire has overcome the slurries diffusion limited;
(2) overcome the whole rate of penetration of twining profile wire of the body of rod and be subjected to that the broken coal landwaste influences in the hole in, be easy to construct, shortened the anchor pole set-up time;
(3) the triangle steel wire of being installed twines section and has improved the effect in shutoff aperture with the acting in conjunction of taper stop grouting plug, has guaranteed grouting pressure.
Description of drawings
Accompanying drawing is the structure chart of the utility model grouted anchor bar.
Among the figure: 1-nut, 2-convex pallet, 3-taper stop grouting plug, 4-baffle ring, the 5-grouted anchor bar body of rod, 6-triangle steel wire, 7-injected hole, 8-grouted anchor bar hole; L
1-thread segment length, L
2-triangle steel wire twines pitch, L
3: triangle steel wire coiling length, L
4: first injected hole twines segment distance, L apart from the triangle steel wire
5: injected hole spacing, L
6: injected hole diameter, L
7: grouted anchor bar diameter, L
8: the grouted anchor bar bore diameter.
The specific embodiment
The utility model will be further described below in conjunction with the embodiment in the accompanying drawing:
Grouted anchor bar of the present utility model, the grouted anchor bar body of rod 5 is the round steel pipe section bar, according to the difference of slip casting demand, body of rod rear end is the long thread segment L of 100-150mm
1, thread segment L
1On be provided with successively taper stop grouting plug 3, convex pallet 2 and with thread segment L
1Diameter L
7The nut 1 of coupling; The mechanical external force of dependence pallet 2 and nut 1 was squeezed to the part of stop grouting plug body in the grouted anchor bar hole 8 after the grouted anchor bar body of rod 5 was installed, and prevented the slurries outflow.Taper stop grouting plug 3 front ends are provided with and stop its baffle ring that slides inwards 4, and the grouted anchor bar body of rod of baffle ring 4 front ends is provided with spirally-wound triangle steel wire 6, the pitch L of the triangle steel wire 6 of winding
2Be 25-40mm, length L
3Be 250-300mm, the triangle steel wire adopts standard sections, height 3-5mm, grouted anchor bar bore dia L
8Should be controlled at 25-30mm.Be drilled with a plurality of injected holes 7 on the body of rod 5 successively, the diameter L of injected hole 7
6Be 6-8mm, injected hole 7 between apart from L
5Be 150-200mm, the length L of the triangle steel wire 6 of winding
3Apart from the distance L between the injected hole 7
4Be 50-80mm.The diameter L of the grouted anchor bar body of rod 5
7Be 18-20mm, wall thickness is a 4mm seamless circular steel pipe section bar.Injected hole 7 numbers are adjusted according to body of rod length.Grouted anchor bar makes grouted anchor bar not step back owing to the rubbing action of triangle steel wire winding section with coal and rock, and slurries are excessive in bullet stop grouting plug 7 and the triangle steel wire section acting in conjunction prevention slip casting process.
Claims (2)
1. one kind is applicable to the grouted anchor bar of reinforcing country rock in the colliery tunnel support, and it is characterized in that: the grouted anchor bar body of rod (5) is the round steel pipe section bar, and body of rod rear end is the long thread segment (L of 100-150mm
1), thread segment (L
1) on be provided with successively taper stop grouting plug (3), convex pallet (2) and with thread segment (L
1) nut (1) of diameter coupling; Taper stop grouting plug (3) front end is provided with and stops its baffle ring that slides inwards (4), and the grouted anchor bar body of rod of baffle ring (4) front end is provided with spirally-wound triangle steel wire (6), the pitch (L of the triangle steel wire (6) of winding
2) be 25-40mm, length (L
3) be 250-300mm; Be drilled with a plurality of injected holes (7) on the body of rod (5) successively, the diameter (L of injected hole (7)
6) be 6-8mm, injected hole (7) between the distance (L
5) be 150-200mm, the length (L of the triangle steel wire (6) of winding
3) apart from the distance (L between the injected hole (7)
4) be 50-80mm.
2. grouted anchor bar according to claim 1 is characterized in that: the diameter (L of the described grouted anchor bar body of rod (5)
7) be 18-20mm, wall thickness is a 4mm seamless circular steel pipe section bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200332558U CN201180553Y (en) | 2008-03-18 | 2008-03-18 | Slip casting anchor bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200332558U CN201180553Y (en) | 2008-03-18 | 2008-03-18 | Slip casting anchor bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201180553Y true CN201180553Y (en) | 2009-01-14 |
Family
ID=40250054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200332558U Expired - Fee Related CN201180553Y (en) | 2008-03-18 | 2008-03-18 | Slip casting anchor bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201180553Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102051882A (en) * | 2010-11-23 | 2011-05-11 | 北京市公路桥梁建设集团有限公司 | Anchor pipe and anchor pipe type soil nailing wall support method |
| CN102108874A (en) * | 2011-03-15 | 2011-06-29 | 同济大学 | Tensile cross grouting anchor rod device |
| CN102352884A (en) * | 2011-10-14 | 2012-02-15 | 山东焱鑫矿用材料加工有限公司 | Steel used for non-cold-working connection |
| CN102877869A (en) * | 2012-09-26 | 2013-01-16 | 山东科技大学 | Grout plugging yielding tray for grouting anchor rod or anchor cable and usage method thereof |
| CN103016036A (en) * | 2013-01-16 | 2013-04-03 | 山东科技大学 | Deep-shaft surrounding-rock grouting anchor cable and grouting method thereof |
| CN103032088A (en) * | 2012-12-29 | 2013-04-10 | 施力芳 | Anchor rod for supporting coal mine underworkings |
| CN103644986A (en) * | 2013-12-24 | 2014-03-19 | 辽宁工程技术大学 | Hollow grouting anchor rod structure based mine pressure measuring device |
| CN104032738A (en) * | 2009-12-11 | 2014-09-10 | 昆明军龙岩土工程有限公司 | Pre-stressed anchor rod and construction method using same |
| CN102094421B (en) * | 2009-12-11 | 2015-04-22 | 昆明军龙岩土工程有限公司 | Prestressed anchor bar and construction method using same |
| CN106442939A (en) * | 2016-10-21 | 2017-02-22 | 浙江科技学院（浙江中德科技促进中心） | Test device for accelerating curing of liquefiable sand on basis of ultrasonic vibration and test method of test device |
-
2008
- 2008-03-18 CN CNU2008200332558U patent/CN201180553Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032738A (en) * | 2009-12-11 | 2014-09-10 | 昆明军龙岩土工程有限公司 | Pre-stressed anchor rod and construction method using same |
| CN104032738B (en) * | 2009-12-11 | 2017-02-08 | 昆明军龙岩土工程有限公司 | Pre-stressed anchor rod and construction method using same |
| CN102094421B (en) * | 2009-12-11 | 2015-04-22 | 昆明军龙岩土工程有限公司 | Prestressed anchor bar and construction method using same |
| CN102051882A (en) * | 2010-11-23 | 2011-05-11 | 北京市公路桥梁建设集团有限公司 | Anchor pipe and anchor pipe type soil nailing wall support method |
| CN102108874A (en) * | 2011-03-15 | 2011-06-29 | 同济大学 | Tensile cross grouting anchor rod device |
| CN102108874B (en) * | 2011-03-15 | 2012-11-07 | 同济大学 | Tensile cross grouting anchor rod device |
| CN102352884A (en) * | 2011-10-14 | 2012-02-15 | 山东焱鑫矿用材料加工有限公司 | Steel used for non-cold-working connection |
| CN102877869A (en) * | 2012-09-26 | 2013-01-16 | 山东科技大学 | Grout plugging yielding tray for grouting anchor rod or anchor cable and usage method thereof |
| CN103032088A (en) * | 2012-12-29 | 2013-04-10 | 施力芳 | Anchor rod for supporting coal mine underworkings |
| CN103016036B (en) * | 2013-01-16 | 2014-10-15 | 山东科技大学 | Deep-shaft surrounding-rock grouting anchor cable and grouting method thereof |
| CN103016036A (en) * | 2013-01-16 | 2013-04-03 | 山东科技大学 | Deep-shaft surrounding-rock grouting anchor cable and grouting method thereof |
| CN103644986A (en) * | 2013-12-24 | 2014-03-19 | 辽宁工程技术大学 | Hollow grouting anchor rod structure based mine pressure measuring device |
| CN103644986B (en) * | 2013-12-24 | 2016-01-20 | 辽宁工程技术大学 | A kind of rock pressure [in mine measurement mechanism based on hollow grouting anchor structure |
| CN106442939A (en) * | 2016-10-21 | 2017-02-22 | 浙江科技学院（浙江中德科技促进中心） | Test device for accelerating curing of liquefiable sand on basis of ultrasonic vibration and test method of test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20110318 |