CN109611135A - A kind of Novel hollow cross grouting anchor rod device and application method - Google Patents
A kind of Novel hollow cross grouting anchor rod device and application method Download PDFInfo
- Publication number
- CN109611135A CN109611135A CN201811477626.6A CN201811477626A CN109611135A CN 109611135 A CN109611135 A CN 109611135A CN 201811477626 A CN201811477626 A CN 201811477626A CN 109611135 A CN109611135 A CN 109611135A
- Authority
- CN
- China
- Prior art keywords
- anchor
- bar
- grouted
- anchor pole
- solid
- Prior art date
Links
- 238000007569 slipcasting Methods 0.000 claims abstract description 21
- 239000007787 solids Substances 0.000 claims abstract description 21
- 230000003014 reinforcing Effects 0.000 claims abstract description 16
- 239000011435 rock Substances 0.000 claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims description 9
- 239000002002 slurries Substances 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 239000011901 water Substances 0.000 claims description 3
- 238000004873 anchoring Methods 0.000 abstract description 6
- 238000005516 engineering processes Methods 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 238000003466 welding Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 239000007789 gases Substances 0.000 description 1
- 238000000034 methods Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reactions Methods 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
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
- E21D21/0046—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts formed by a plurality of elements arranged longitudinally
-
- 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
-
- 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
- E21D21/008—Anchoring or tensioning means
Abstract
Description
Technical field
The present invention relates to a kind of Novel hollow cross grouting anchor rod device and application methods, belong to anchorage technology field.
Background technique
During anchor bolt construction, since its distinctive concealment and various reasons make the anchoring matter of anchor pole Amount be difficult to reach design requirement, wherein just have grouting plumpness it is difficult to ensure that, bring great security risk to engineering.And In slip casting, exhaust is also a more troublesome problem, and traditional hollow grouting anchor is provided with special exhaust pipe, increases Cost.Therefore, the slip casting problem in anchoring and exhausting problem are urgently to be resolved.
Summary of the invention
It is an object of the invention to: a kind of Novel hollow cross grouting anchor rod device and application method are provided, to solve current anchor Slip casting problem and exhausting problem present in Gu, and make the connection between anchor pole and country rock closer, improve anchoring ability.
To solve the above problems, such a Novel hollow cross grouting anchor rod device of proposed adoption, including drill bit, solid anchor pole and Hollow grouted anchor bar is distributed equipped with injected hole on the side wall of grouted anchor bar, and the one of one end of solid anchor pole and grouted anchor bar End is docked by connector sleeve, and drill bit is fixed on the other end of solid anchor pole, is also arranged on the other end of the grouted anchor bar Stop grouting plug and arch backing plate are also installed with nut, the preferred spherical nut of nut, the note on the grouted anchor bar on the outside of arch backing plate It is provided with reinforcing bar along its length in slurry anchor pole, and reinforcement welding is fixed on one end of the solid anchor pole.
In said hollow cross grouting anchor rod device, the connector sleeve is connecting sleeve, and connector sleeve is sheathed on solid anchor pole and note The butt end of anchor pole is starched, and connector sleeve is welded and fixed with solid anchor pole and grouted anchor bar respectively.
Its application method is as follows:
Determine position of opening first, drilling via formations and thorough borehole cleaning bore that diameter is accurate, and preferably cross bores to keep drilling straight Head drilling, after connecting above-mentioned anchor rod device, squeezes into projected depth for anchor rod device, then uses water or high-pressure blast borehole cleaning, borehole cleaning After the completion, reinforcing bar being clamped with tool for gripping and twisting reinforcing bar, firmly pre-tighten reinforcing bar, applying torsion until manpower can not twist is Only, then timely slip casting, slurries infiltrate into surrounding rock body along hollow 3 tapping of grouted anchor bar；It should be using pressure when slip casting Power slip casting, when slip casting machine pressure increases suddenly, when Grouting Pipe is acutely shaken, surrounding rock body slurries are saturated at this time, stop slip casting, peace Stop grouting plug is installed only to be starched.
Compared with prior art, the full of slurries between anchor pole and country rock can be effectively ensured in the present invention, elongated by increasing Reinforcing bar allows connection between anchor pole and country rock more closely to effectively enhance the anchoring energy of anchor pole for applying prestressing force Power, meanwhile, by cancelling exhaust pipe, the method for aperture hollow grouting anchor is set, and more convenient is discharged the same of gas When again effectively saved cost, have high application and popularization value.
Detailed description of the invention
Fig. 1 is cross-sectional view of the invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing The detailed description of step, it should be understood that described herein specific examples are only used to explain the present invention, is not used to limit this hair It is bright.
Embodiment
Referring to Fig.1, arrow is slip casting direction, and the present embodiment provides a kind of Novel hollow cross grouting anchor rod devices, including drill bit 1, solid anchor pole 2 and hollow grouted anchor bar 3 are distributed equipped with injected hole 31 on the side wall of grouted anchor bar 3, solid anchor pole 2 One end is docked with one end of grouted anchor bar 3 by connector sleeve 4, and drill bit 1 is fixed on the other end of solid anchor pole 2, the slip casting It is also arranged with stop grouting plug 5 and arch backing plate 6 on the other end of anchor pole 3, is also installed on the grouted anchor bar 3 in 6 outside of arch backing plate Nut 8, the preferred spherical nut of nut 8 are provided with reinforcing bar 9 in the grouted anchor bar 3 along its length, and reinforcing bar 9 is welded and fixed In on one end of the solid anchor pole 2, the connector sleeve 4 is connecting sleeve, and connector sleeve 4 is sheathed on solid anchor pole 2 and slip casting anchor The butt end of bar 3, and connector sleeve 4 is welded and fixed with solid anchor pole 2 and grouted anchor bar 3 respectively.
Its application method is as follows:
Determine position of opening first, drilling via formations and thorough borehole cleaning bore that diameter is accurate, and preferably cross bores to keep drilling straight Head drilling, after connecting above-mentioned anchor rod device, squeezes into projected depth for anchor rod device, then uses water or high-pressure blast borehole cleaning, borehole cleaning After the completion, reinforcing bar 9 is clamped with tool for gripping and twist reinforcing bar 9, firmly pre-tighten reinforcing bar 9, apply torsion until manpower can not twist Until, then timely slip casting, slurries infiltrate into surrounding rock body along hollow 3 tapping of grouted anchor bar；It should be used when slip casting Slip casing by pressure, when slip casting machine pressure increases suddenly, when Grouting Pipe is acutely shaken, surrounding rock body slurries are saturated at this time, stop slip casting, Stop grouting plug is installed only to be starched.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811477626.6A CN109611135A (en) | 2018-12-05 | 2018-12-05 | A kind of Novel hollow cross grouting anchor rod device and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811477626.6A CN109611135A (en) | 2018-12-05 | 2018-12-05 | A kind of Novel hollow cross grouting anchor rod device and application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109611135A true CN109611135A (en) | 2019-04-12 |
Family
ID=66007150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811477626.6A CN109611135A (en) | 2018-12-05 | 2018-12-05 | A kind of Novel hollow cross grouting anchor rod device and application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109611135A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145348A (en) * | 2019-05-05 | 2019-08-20 | 中交第三公路工程局有限公司 | Long system anchor bolt construction method under a kind of Europe superscript New Austrian Tunneling Method standard |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5531545A (en) * | 1995-05-11 | 1996-07-02 | Seegmiller; Ben L. | Cable bolt structure and method |
| CN1464176A (en) * | 2002-06-24 | 2003-12-31 | 吴德兴 | A pin timbering process and sectionalized hollow mud injecting stay bolt thereof |
| CN102505687A (en) * | 2011-12-13 | 2012-06-20 | 江苏建筑职业技术学院 | Pre-explosion drilling, grouting and anchoring integrated anchor rod and construction method thereof |
| CN205477689U (en) * | 2016-03-23 | 2016-08-17 | 山东科技大学 | Resistance to plucking prestressed anchorage pole |
| CN106523006A (en) * | 2016-11-29 | 2017-03-22 | 中铁二十三局集团第工程有限公司 | Glass fiber anchor rod and construction method |
| CN206874297U (en) * | 2017-06-16 | 2018-01-12 | 中国水利水电第十四工程局有限公司 | A kind of collection drilling, slip casting, it is anchored in integral novel anchor rod |
-
2018
- 2018-12-05 CN CN201811477626.6A patent/CN109611135A/en active Search and Examination
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5531545A (en) * | 1995-05-11 | 1996-07-02 | Seegmiller; Ben L. | Cable bolt structure and method |
| CN1464176A (en) * | 2002-06-24 | 2003-12-31 | 吴德兴 | A pin timbering process and sectionalized hollow mud injecting stay bolt thereof |
| CN102505687A (en) * | 2011-12-13 | 2012-06-20 | 江苏建筑职业技术学院 | Pre-explosion drilling, grouting and anchoring integrated anchor rod and construction method thereof |
| CN205477689U (en) * | 2016-03-23 | 2016-08-17 | 山东科技大学 | Resistance to plucking prestressed anchorage pole |
| CN106523006A (en) * | 2016-11-29 | 2017-03-22 | 中铁二十三局集团第工程有限公司 | Glass fiber anchor rod and construction method |
| CN206874297U (en) * | 2017-06-16 | 2018-01-12 | 中国水利水电第十四工程局有限公司 | A kind of collection drilling, slip casting, it is anchored in integral novel anchor rod |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145348A (en) * | 2019-05-05 | 2019-08-20 | 中交第三公路工程局有限公司 | Long system anchor bolt construction method under a kind of Europe superscript New Austrian Tunneling Method standard |
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