CN203756203U - Self-drilling type full-thread bolt grouting anchor rod - Google Patents

Self-drilling type full-thread bolt grouting anchor rod Download PDF

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Publication number
CN203756203U
CN203756203U CN201420099487.9U CN201420099487U CN203756203U CN 203756203 U CN203756203 U CN 203756203U CN 201420099487 U CN201420099487 U CN 201420099487U CN 203756203 U CN203756203 U CN 203756203U
Authority
CN
China
Prior art keywords
anchor rod
self
section
grouting
seamless 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
Application number
CN201420099487.9U
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Chinese (zh)
Inventor
刘锋珍
王明远
王新稳
林登阁
乔卫国
吴新华
王�琦
李彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tai'an Sound Science And Technology Engineering Co Ltd Of Shaking
Original Assignee
Tai'an Sound Science And Technology Engineering Co Ltd Of Shaking
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 Tai'an Sound Science And Technology Engineering Co Ltd Of Shaking filed Critical Tai'an Sound Science And Technology Engineering Co Ltd Of Shaking
Priority to CN201420099487.9U priority Critical patent/CN203756203U/en
Application granted granted Critical
Publication of CN203756203U publication Critical patent/CN203756203U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a self-drilling type full-thread bolt grouting anchor rod. According to the anchor rod, a seamless steel tube provided with a grouting hole is used as an anchor rod body and sequentially divided into an outer anchorage section, an orifice section and an inner anchorage section. The outer anchorage section is provided with threads, and a nut and a tray are installed through the threads. Triangular threads spirally wind around the inner anchorage section in a spot welding mode. The orifice section is provided with a grouting stopping plug. According to the anchor rod, the self-drilling, grouting and anchoring functions are integrated, and the ideal support effect is achieved in mine engineering supporting and reinforcing, tunnel advance supporting and various slope processing projects under complex geological conditions of weak surrounding rocks, fault fracture zones, high stress and the like.

Description

Self-drilling full thread anchor rod
Technical field
The utility model relates to the anchor pole of extensive use in engineering support, especially for use in the anchor pole that surrounding rock supporting is used under weak surrounding rock, fault belt, the complex geological condition such as heavily stressed.
Background technology
Anchor pole is extensive use in engineering support, can be used for shaft and drift supporting, dam reinforcement, landslide control, tunnel reinforcement, the fields such as Soft Soil Foundation Pit reinforcing.The technology relevant with the application is automatic anchor pole and anchor rod.Automatic anchor pole adopts the principle of screw, on the solid metal anchors body of rod on the spiral winding point triangle wire of burn-oning, make body of rod section form shape of threads, when installation without perforating, without anchor head, without Anchor Agent, directly use rig precession in country rock; Belong to full anchor structure, there is the advantage simply and easily of constructing.
But when surrounding rock supporting under weak surrounding rock, fault belt, the complex geological condition such as heavily stressed, generally need slip casting, so must use anchor rod or grouted anchor bar.Anchor rod or grouted anchor bar are to be processed with injected hole on a seamless steel pipe, and are provided with stop grouting plug at aperture place, be provided with screw thread, nut and pallet and form outer anchoring section outside aperture; When installation, first perforating boring on country rock, is inserted in jewel hole, then connects upper Grouting Pipe to wall-rock crack and boring gap slip casting, stays in boring after slip casting, and slurries solidify and tighten up with nut afterwards, play the double acting of slip casting and anchoring.Its deficiency is, at complex geological conditions such as weak surrounding rock, fault belt, high-ground stress large deformation with need extra long anchor bar in the situation that, the hole that easily collapses when boring, has brought great difficulty to the construction of rock anchor; Particularly and soft stratum, substantially cannot effectively construct and reach the supporting effect of regulation.
Summary of the invention
For overcoming the deficiencies in the prior art, solve the surrounding rock supporting problem under weak surrounding rock, fault belt, the complex geological condition such as heavily stressed, a kind of self-drilling full thread anchor rod is proposed.This anchor pole can be installed and carry out full section from anchor without perforating, can realize again grouting and reinforcing function.
For achieving the above object, the technical scheme that the utility model is taked is:
A kind of self-drilling full thread anchor rod, it is characterized in that, it with a seamless steel pipe that is processed with injected hole as anchor bar body, seamless steel pipe is divided into outer anchoring section, aperture section and interior anchoring section successively, outer anchoring section is provided with screw thread, install nut and pallet by screw thread, on interior anchoring section, spiral winding point is welded with triangle wire, and aperture section is provided with stop grouting plug.
For the ease of creeping into, in seamless steel pipe, the front end of anchoring section is welded with drill bit.
In order to adapt to the needs of deep hole, described seamless steel pipe is made up of more piece, between joint and joint, links together by tapped adapter sleeve.
When use, be connected to jewel hole mechanically, directly creep in the roadway surrounding rock under the complex geological conditions such as weak surrounding rock, fault belt, high-ground stress large deformation; Then connect upper Grouting Pipe to wall-rock crack and boring gap slip casting, after slip casting, anchor bar body is stayed in boring, and slurries solidify and tighten up with nut afterwards, play the double acting of the fixing fragmented rock body of slip casting and anchoring, reach the object of country rock and anchor pole supporting each other.
In the time of deep hole grouting, can creep into and connect next joint with adapter sleeve again after a joint and continue to creep into, until reach desired depth.
Good effect of the present utility model is,
1, anchoring section total length is thread structure in anchor rod body, can directly creep into by jumbolter on the one hand, and without holing separately, and the drawback in the hole that easily collapses while having overcome boring, provides the installation effectiveness of anchor pole greatly, has saved engineering cost; Be beneficial on the other hand the shutoff slip casting of boring, reach the effect of full length fastening.
2, the body of rod is hollow seamless steel tubular structure, utilizes the grout outlet distributing on the body of rod and the body of rod to carry out total length slip casting, ensures that slurries are full of boring total length, and anchored force is large, and carrys out reinforce adjoining rock with the diffusion of slurries.
In a word, the utility model self-drilling full thread anchor rod will be from brill, slip casting and anchoring function three-in-one integrated, in mine engineering support reinforcement, tunnel advanced support and all kinds of Slope Treatment engineering under weak surrounding rock, fault belt, the complex geological condition such as heavily stressed, reach desirable supporting effect.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model embodiment mono-;
Fig. 2 is the schematic diagram of the utility model embodiment bis-;
Fig. 3 is the schematic diagram of the utility model embodiment tri-.
Marginal data: 1-nut, 2-pallet, 3-grouting plug, 4-triangle wire, 5-seamless steel pipe, 6-injected hole, 7-drill bit, 8-adapter sleeve.
Detailed description of the invention
Embodiment mono-: as shown in Figure 1, a kind of self-drilling full thread anchor rod, it comprises an automatic anchor pole, automatic anchor pole is that on the body of rod in the hole of the metal anchors body of rod, spiral winding point is welded with triangle wire 4, the body of rod outside aperture is provided with screw thread, nut 1 and pallet 2 and forms outer anchoring section, the wherein said metal anchors body of rod is a seamless steel pipe 5 that is processed with injected hole 6, and is provided with stop grouting plug 3 at aperture place.
Embodiment bis-self-drilling full thread anchor rods as shown in Figure 2, are for the ease of creeping into, and it and embodiment mono-difference are: be welded with drill bit 7 at the front end of seamless steel pipe 5.
Embodiment tri-self-drilling full thread anchor rods as shown in Figure 3, are the needs in order to adapt to deep hole, and it and embodiment mono-difference are: seamless steel pipe 5 is made up of more piece, between joint and joint, links together by tapped adapter sleeve 8.

Claims (3)

1. a self-drilling full thread anchor rod, it is characterized in that, it with a seamless steel pipe that is processed with injected hole as anchor bar body, seamless steel pipe is divided into outer anchoring section, aperture section and interior anchoring section successively, outer anchoring section is provided with screw thread, install nut and pallet by screw thread, on interior anchoring section, spiral winding point is welded with triangle wire, and aperture section is provided with stop grouting plug.
2. self-drilling full thread anchor rod as claimed in claim 1, is characterized in that, in seamless steel pipe, the front end of anchoring section is welded with drill bit.
3. self-drilling full thread anchor rod as claimed in claim 1, is characterized in that, described seamless steel pipe is made up of more piece, between joint and joint, links together by tapped adapter sleeve.
CN201420099487.9U 2014-06-11 2014-06-11 Self-drilling type full-thread bolt grouting anchor rod Expired - Fee Related CN203756203U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420099487.9U CN203756203U (en) 2014-06-11 2014-06-11 Self-drilling type full-thread bolt grouting anchor rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420099487.9U CN203756203U (en) 2014-06-11 2014-06-11 Self-drilling type full-thread bolt grouting anchor rod

Publications (1)

Publication Number Publication Date
CN203756203U true CN203756203U (en) 2014-08-06

Family

ID=51251490

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420099487.9U Expired - Fee Related CN203756203U (en) 2014-06-11 2014-06-11 Self-drilling type full-thread bolt grouting anchor rod

Country Status (1)

Country Link
CN (1) CN203756203U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105484781A (en) * 2015-11-25 2016-04-13 中国矿业大学(北京) Mining support anchor pole apparatus made from recoverable plastics
CN106498845A (en) * 2016-12-09 2017-03-15 绍兴明煌建材科技有限公司 A kind of blinding layer of light section steel structure bridge and its construction method
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
CN110219686A (en) * 2019-07-12 2019-09-10 中铁十二局集团有限公司 Soft rock tunnel large deformation section arch wall handles the construction method of long anchor pole
CN110318793A (en) * 2019-07-12 2019-10-11 中铁十二局集团有限公司 Soft rock large deformation section tunnel inverted arch handles the construction method of long anchor pole
CN111608708A (en) * 2020-04-21 2020-09-01 中交四公局第一工程有限公司 Device for expanding, digging and pre-reinforcing lateral surrounding rock of tunnel

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105484781A (en) * 2015-11-25 2016-04-13 中国矿业大学(北京) Mining support anchor pole apparatus made from recoverable plastics
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
CN106498845A (en) * 2016-12-09 2017-03-15 绍兴明煌建材科技有限公司 A kind of blinding layer of light section steel structure bridge and its construction method
CN110219686A (en) * 2019-07-12 2019-09-10 中铁十二局集团有限公司 Soft rock tunnel large deformation section arch wall handles the construction method of long anchor pole
CN110318793A (en) * 2019-07-12 2019-10-11 中铁十二局集团有限公司 Soft rock large deformation section tunnel inverted arch handles the construction method of long anchor pole
CN111608708A (en) * 2020-04-21 2020-09-01 中交四公局第一工程有限公司 Device for expanding, digging and pre-reinforcing lateral surrounding rock of tunnel

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140806

Termination date: 20180611