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 PDF

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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
Application number
CN201811477626.6A
Other languages
Chinese (zh)
Inventor
雷振
游帅
袁玉宝
高正华
贺路
雷兴海
殷同
Original Assignee
贵州大学
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 贵州大学 filed Critical 贵州大学
Priority to CN201811477626.6A priority Critical patent/CN109611135A/en
Publication of CN109611135A publication Critical patent/CN109611135A/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/0046Anchoring-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
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00Setting anchoring-bolts
    • E21D20/003Machines for drilling anchor holes and setting anchor bolts
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00Setting anchoring-bolts
    • E21D20/02Setting anchoring-bolts with provisions for grouting
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/008Anchoring or tensioning means

Abstract

The present invention provides a kind of Novel hollow cross grouting anchor rod device and application method, including drill bit, solid anchor pole and hollow grouted anchor bar, it is distributed on the side wall of grouted anchor bar equipped with injected hole, it is docked with one end of grouted anchor bar by connector sleeve one end of solid anchor pole, drill bit is fixed on the other end of solid anchor pole, stop grouting plug and arch backing plate are also arranged on the other end of the grouted anchor bar, nut is also installed on grouted anchor bar on the outside of arch backing plate, the preferred spherical nut of nut, it is provided with reinforcing bar along its length in the grouted anchor bar, and reinforcement welding is fixed on one end of the solid anchor pole.To solve the problems, such as slip casting and exhausting problem present in anchoring at present, and make the connection between anchor pole and country rock closer, improves anchoring ability.Belong to anchorage technology field.

Description

A kind of Novel hollow cross grouting anchor rod device and application method

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)

1. a kind of Novel hollow cross grouting anchor rod device, it is characterised in that: including drill bit (1), solid anchor pole (2) and hollow slip casting Anchor pole (3) is distributed equipped with injected hole (31), one end of solid anchor pole (2) and grouted anchor bar on the side wall of grouted anchor bar (3) (3) one end is docked by connector sleeve (4), and drill bit (1) is fixed on the other end of solid anchor pole (2), the grouted anchor bar (3) The other end on be also arranged with stop grouting plug (5) and arch backing plate (6), on the grouted anchor bar (3) on the outside of arch backing plate (6) also rotation set Have nut (8), is provided with along its length reinforcing bar (9) in the grouted anchor bar (3), and reinforcing bar (9) is fixedly welded on the reality On one end of heart anchor pole (2).
2. a kind of Novel hollow cross grouting anchor rod device according to claim 1, it is characterised in that: the connector sleeve (4) is to connect Female connector pipe, connector sleeve (4) are sheathed on the butt end of solid anchor pole (2) and grouted anchor bar (3), and connector sleeve (4) respectively with it is solid Anchor pole (2) and grouted anchor bar (3) are welded and fixed.
3. the application method of Novel hollow cross grouting anchor rod device described in claim 1-2, which is characterized in that specific method is such as Under:
Determine position of opening first, drilling via formations and thorough borehole cleaning bore that diameter is accurate, and preferably cross bit bores to keep drilling straight Anchor rod device after connecting above-mentioned anchor rod device, is squeezed into projected depth by hole, then uses water or high-pressure blast borehole cleaning, and borehole cleaning is completed Afterwards, reinforcing bar 9 is clamped with tool for gripping and twists reinforcing bar 9, firmly pre-tighten reinforcing bar 9, apply torsion until manpower can not twist, Then timely slip casting, slurries infiltrate into surrounding rock body along hollow 3 tapping of grouted anchor bar;It should be infused using pressure when slip casting Slurry, when slip casting machine pressure increases suddenly, when Grouting Pipe is acutely shaken, surrounding rock body slurries are saturated at this time, are stopped slip casting, are installed Stop grouting plug is only starched.
CN201811477626.6A 2018-12-05 2018-12-05 A kind of Novel hollow cross grouting anchor rod device and application method CN109611135A (en)

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

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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

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Cited By (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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